Chemical Treating Agent Is A Nitrogen-containing Compound Patents (Class 525/374)
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Patent number: 5874506Abstract: A fluorine-containing elastomer comprising vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene having a high fluorine content (e.g. at least 68% by weight) can be vulcanized with a polyol-based cross-linking agent by further copolymerizing 2H-pentafluoropropylene into the elastomer, whereby the resulting vulcanization products having improved characteristics such as rheological properties, normal state physical properties and compression set can be obtained. Vulcanization products obtained by vulcanization with a polyol-based cross-linking agent and a quaternary onium salt compound have a good permeation resistance to fuel oil as a result of a permeation test with a mixed solvent of gasoline/methanol in a volume ratio of 85/15.Type: GrantFiled: April 4, 1997Date of Patent: February 23, 1999Assignee: Nippon Mektron, LimitedInventors: Haruyoshi Tatsu, Akihiro Naraki, Yuichi Yamamoto
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Patent number: 5866659Abstract: Functionalized copolymers of .alpha.-olefin and para-alkylstyrene having the formula: ##STR1## in which in which R, R' and R", independently, are hydrogen or primary or secondary alkyl groups; X comprises a functional group, such as --COOH, --OH, --SH, --NH.sub.2, --Cl, --Br, --M, --COOM (M=metals, e.g. Li, Na, K and Ca) and anhydrides; P comprises a polymer having the molecular weight of at least about 500, which can be derived from both step and chain polymerization reactions; Y is a chemical linkage between polymer P and para-alkystyrene side chain, which is also a residue derived from graft reaction; and the combination of a+b+c+d represents the empirical formula of a substantially random functional polymer, where a ranges from about 50 to about 100,000, b, c and d range from 0 to about 10,000, and the sum of c+d is at least 1, and processes for preparing the funcitonalized copolymers are disclosed.Type: GrantFiled: June 28, 1996Date of Patent: February 2, 1999Assignee: The Penn State Research FoundationInventors: T. C. Chung, H. L. Lu
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Patent number: 5851518Abstract: The invention provides a physiologically acceptable polymer comprising a backbone to which are attached guanidino groups, the polymer having a minimum molecular weight of 10,000. The invention also extends to foodstuffs and pharmaceutical compositions comprising the physiologically acceptable polymer. Such foodstuffs and compositions are of value in controlling phosphate levels in the body.Type: GrantFiled: August 28, 1997Date of Patent: December 22, 1998Assignee: British Technology Group LimitedInventors: Robert Charles Hider, Anthony Canas-Rodriguez
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Patent number: 5849847Abstract: Polyalkenylaromatic-polyethylene copolymers are prepared using protected functional organolithium initiators. Polymerization of an alkenylsubstituted aromatic monomer followed by ethylene, results in a protected functional block polystyrene-co-polyethylenyllithium. Termination with a functionalizing agent followed by deprotection produces polymeric products with high functionalization at the initiating chain-end and at least partial functionalization at the terminal chain-end.Type: GrantFiled: July 29, 1996Date of Patent: December 15, 1998Assignee: FMC CorporationInventor: Roderic P. Quirk
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Patent number: 5834564Abstract: A photoconductor coating which is a cross-linked product of a copolymer is disclosed. The copolymer is a polymerization reaction product of reactant monomers comprising three types of monomers. The reactant monomers include from 0.1 to 20 mole percent of one or more first monomers on the reactant monomers, from 0.1 to 20 mole percent of one or more second monomers on the reactant monomers, and from 0.1 to 80 mole percent of one or more third monomers on the reactant monomers. The first monomers has the formula ##STR1## wherein R.sup.1, R.sup.2 each is selected from the group consisting of hydrogen, halogen, alkyl, phenyl, phenylalkyl, and alkylphenyl in which alkyl has 1 to 4 carbon atoms and is linear, R.sup.3 is selected from the group consisting of hydrogen, alkyl, phenyl, phenylalkyl, alkylphenyl, biphenyl, --COOR.sup.5, and --CONHR.sup.6 ; R.sup.5 and R.sup.Type: GrantFiled: April 30, 1996Date of Patent: November 10, 1998Assignee: Hewlett-Packard CompanyInventors: Khe Nguyen, Sivapackia Ganapathiappan
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Patent number: 5824749Abstract: A fluorine-containing elastomer composition, which comprises a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) or perfluoro (lower alkoxy-lower alkyl vinyl ether) and cross-linkable cyano group-containing (perfluorovinylether), and a bis(aminothiophenol) compound represented by the following general formula as a cross-linking agent: ##STR1## wherein A is an alkylidene group having 1 to 6 carbon atoms, a perfluoroalkylidene group having 1 to 10 carbon atoms, a SO.sub.2 group, an O atom, a CO group or a carbon-carbon bond capable of directly bonding two benzene rings and one of X and Y is an amino group, while the other is a mercapto group, can produce cross-linked fluororubber moldings having an improved compression set.Type: GrantFiled: October 18, 1996Date of Patent: October 20, 1998Assignee: Nippon Mektron, LimitedInventors: Takehiro Sonoi, Haruyoshi Tatsu, Lev Solomonovich, deceased, Valerii Romanovich Polishchuk, deceased, Satoru Saito
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Patent number: 5821307Abstract: A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure:M--Q.sub.n --Z--OA(R.sup.1 R.sup.2 R.sup.3)wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is an aromatic substituted saturated hydrocarbyl group produced by the incorporation of one or more alkenyl substituted aromatic hydrocarbons containing 8-25 carbon atoms into the M--Z linkage; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; A is an element selected from carbon and silicon; R.sup.1, R.sup.2, and R.sup.Type: GrantFiled: May 23, 1996Date of Patent: October 13, 1998Assignee: FMC CorporationInventors: James Anthony Schwindeman, Conrad William Kamienski, Eric John Granger, Robert Charles Morrison
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Patent number: 5814706Abstract: Novel terpolymers are disclosed which comprise the reaction product of a high molecular weight olefin, such as polybutene or polypropylene, with an unsaturated acid reactant, such as maleic anhydride and a di-or polyunsaturated reactant. The terpolymers are useful as dispersants in lubricating oils and fuels and are also used to prepared polysuccinimides and other post-treated additives useful in lubricating oils and fuels.Type: GrantFiled: December 23, 1997Date of Patent: September 29, 1998Assignee: Ethyl CorporationInventors: Daniel Y. F. Yu, Carl A. Mike
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Patent number: 5804668Abstract: The polymer compounds according to the invention prepared from specific amidines, zinc mercapto compounds and elastomers are ideally suitable for the production of thermally stable rubber vulcanisates containing halogen. The vulcanisates of rubbers containing halogen obtained by means of the polymer compounds are distinguished by a reduced tendency towards unwanted post-vulcanization and, at elevated storage temperatures, are resistant to thermal and oxidative degradation.Type: GrantFiled: May 1, 1997Date of Patent: September 8, 1998Assignee: Bayer AGInventors: Rudiger Schubart, Rudiger Musch
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Patent number: 5777048Abstract: A method for reducing the molecular weight of aminoplast compounds, the aminoplast compounds obtained thereby, and coating compositions containing said aminoplast compounds are provided. The reduced molecular weight aminoplasts are obtained by reacting(a) an aminoplast compound, having a total number (y) of reactive substituents on the amino nitrogens of the aminoplast, where y=(E.times.M) and E=equivalents per mole of aminoplast and M=total number of moles of aminoplast, wherein the reactive substituents are selected from the group consisting of --NH, alkylol, alkoxy, alkoxyalkyl, and mixtures thereof and(b) at least one carbamate compound selected from the group consisting of unsubstituted and substituted primary carbamate compounds, unsubstituted and substituted secondary carbamate compounds and mixtures thereof,in the presence of primary or secondary alcohols, at temperatures under 150.degree. C.Type: GrantFiled: June 20, 1996Date of Patent: July 7, 1998Assignee: BASF CorporationInventors: Walter H. Ohrbom, Donald H. Campbell, Donald L. St. Aubin
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Patent number: 5777027Abstract: A novel lactone-modified polyvinyl acetal resin and a novel carboxyl-modified resin thereof are disclosed. The novel resins of the present invention can be used as a polyol resin for coatings curable at ordinary temperatures or heating, adhesives, binders, a processing agent for fibers, a curable resin composition by mixing with a curing agent which can react to hydroxyl groups, and a composition for a magnetic recording medium, etc. The novel resins of the present invention have graft chains containing primary hydroxyl groups bonded to the ester group derived from a lactone compound, or the primary hydroxyl groups and carboxylic groups.Type: GrantFiled: October 30, 1995Date of Patent: July 7, 1998Assignee: Daicel Chemical Industries, Ltd.Inventors: Toshio Endo, Takaaki Fujiwa, Tomohisa Isobe, Kazushi Watanabe
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Patent number: 5777022Abstract: A one-coat, waterborne coating system for a polypropylene substrate comprises a mixture of an an acid functional acrylic resin latex, a latex of chlorinated polyolefin resin, and a cross-linking agent reactive with the acid functionality of the acrylic resin.Type: GrantFiled: May 16, 1996Date of Patent: July 7, 1998Assignee: Bee Chemical CompanyInventors: James Bugajski, Robert Kooy, Raymond J. Moeller, Michael L. Jackson
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Patent number: 5773527Abstract: This invention discloses non-crosslinked, poly-branched polymers having a comb-burst configuration and a process for preparing such polymers.Type: GrantFiled: January 20, 1995Date of Patent: June 30, 1998Assignee: Dendritech, Inc.Inventors: Donald A. Tomalia, David M. Hedstrand, Rui Yin
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Patent number: 5759631Abstract: Coating composition comprising(A) at least one hydroxyl group-containing polyacrylate resin obtained by polymerizing(a) from 5 to 80% by weight of a cycloaliphatic ester of methacrylic acid and/or acrylic acid, or a mixture of such monomers,(b) from 10 to 50% by weight of a hydroxyl group-containing alkyl ester of methacrylic acid and/or acrylic acid, or mixtures of such monomers,(c) from 0 to 25% by weight of a hydroxyl group-containing, ethylenically unsaturated monomer, different from (a) and (b), or a mixture of such monomers,(d) from 5 to 80% by weight of an aliphatic ester of methacrylic and/or acrylic acid, different from (a)-(c), or a mixture of such monomers,(e) from 0 to 40% by weight of an aromatic vinyl hydrocarbon, different from (a)-(d), or a mixture of such monomers, and(f) from 0 to 40% by weight of an additional ethylenically unsaturated monomer, different from (a)-(e), or a mixture of such monomers,and(B) at least one crosslinking agent.Type: GrantFiled: September 3, 1996Date of Patent: June 2, 1998Assignee: BASF Lacke+Farben AGInventors: Heinz-Peter Rink, Michael Brunnemann
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Patent number: 5756591Abstract: A network polymer that contains:(a) a plurality of polymer chains which are derived from one or more ethylenically-unsaturated monomer(s), and(b) at least one linking group which links the polymer chains and which contains anhydride, carbonate, or uretidinedione moieties.The network polymer and other network polymers which contain similar dissociating groups are useful in curable formulations which contain a curable compound that contains:(a) a central moiety, and(b) a plurality of reactive groups which are bonded to the central moiety and which react with acid, hydroxyl, or isocyanate moieties liberated by dissociation of the anhydride, carbonate, or uretidinedione moieties.The curable composition builds viscosity more slowly and more controllably during curing than equivalent systems which do not contain the network polymer. It is useful in coatings and other uses for curable compositions.Type: GrantFiled: May 29, 1997Date of Patent: May 26, 1998Assignee: The Dow Chemical CompanyInventors: Duane S. Treybig, Clinton J. Boriack
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Patent number: 5753754Abstract: The present invention provides a method of modifying the surface of a polymeric substrate, e.g., to improve the wettability of the polymer film surface and/or alter the reactivity of the surface of the substrate by further oxidation or affixation of nitrogen, comprising exposing the substrate to a flame. The flame is supported by a fuel and oxidizer mixture that includes an effective amount, for modifying the polymeric substrate, of at least one compound that functions as a fuel or oxidizer substitute and is selected from an oxygen-containing compound, in which the oxygen comprises between about 10 and 50 atomic percent of the compound, a nitrogen-containing compound or an oxygen-nitrogen-containing compound. In a preferred embodiment, which affixes nitrogen or nitrogen-containing chemical groups onto the surface of the film, the flame is supported by a fuel and oxidizer mixture that includes ammonia, nitrous oxide, nitric oxide or a mixture thereof in an effective amount.Type: GrantFiled: September 13, 1996Date of Patent: May 19, 1998Assignee: Minnesota Mining & Manufacturing CompanyInventors: Mark A. Strobel, Melvyn C. Branch, Ronald S. Kapaun, Christopher S. Lyons
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Patent number: 5744531Abstract: An anionic electrocoating composition is provided including an electrodepositable .beta.-hydroxyalkylamide curing agent and an electrodepositable polymer capable of crosslinking with the curing agent. This curing agent includes an organic radical that (a) contains from 8 to 60 carbon atoms; (b) is derived from a substituted or unsubstituted aliphatic, alicyclic or aromatic hydrocarbon radical; and (c) is bonded to n .beta.-hydroxyalkylamide groups, wherein n is an integer from 1 to 4, to form ##STR1## where R.sup.1 can be H or a substituted or unsubstituted aliphatic, alicyclic or aromatic group containing up to 6 carbon atoms;where R.sup.2 and R.sup.3 can be the same or different and can be H or a substituted or unsubstituted aliphatic, alicyclic, or aromatic group containing up to 36 carbon atoms;where R.sup.4 can be H or a substituted or unsubstituted aliphatic group containing up to 8 carbon atoms when n is an integer form 2 to 4, and a .beta.Type: GrantFiled: June 24, 1996Date of Patent: April 28, 1998Assignee: PPG Industries, Inc.Inventors: Paul R. Kerr, Raphael O. Kollah, Steven R. Zawacky, Patricia A. Aikens
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Patent number: 5741864Abstract: The present invention provides a functionalized styrenic polymer or copolymer which contains functionalized stryene moiety having the formula: ##STR1## wherein R.sub.1 is hydrogen, alkyl, primary and secondary halo alkyl groups, and R.sub.2 is: ##STR2## where n is an integer of from 2 to about 10, R.sub.3 is independently hydrogen or an alkyl group and X is NH, O or S. The novel copolymers of the present invention have particular utility in forming polymer blends. For example, the amine and alcohol functionalized polymers can be used as compatabilizers by reacting them with a carboxylic acid containing polymer or the like.Type: GrantFiled: July 28, 1995Date of Patent: April 21, 1998Assignee: Exxon Research & Engineering CompanyInventor: Abhimanyu Onkar Patil
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Patent number: 5731128Abstract: The present invention provides a resin composition for flexographic printing plate, which is superior in rubber elasticity, hardness and elongation as well as water developability. The resin composition for flexographic printing plate capable of water developing, attains excellent rubber elasticity, hardness and elongation without deterioration of water developability, using as elastic particles copolymer elastic particles having whisker on the particle surface which forms an entanglement between particles.Type: GrantFiled: November 29, 1995Date of Patent: March 24, 1998Assignees: Nippon Paint Co., Ltd., Japan Synthetic Rubber Co., Ltd.Inventors: Kazunori Kanda, Koichi Ueda, Tadahiro Kakiuchi, Hisaichi Muramoto, Hozumi Sato, Katsuo Koshimura, Takashi Nishioka
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Patent number: 5726210Abstract: A process for the preparation of an anion exchange resin is described, which comprises reacting an aromatic crosslinked haloalkyl-containing copolymer with an amine in the presence of at least 100 parts by weight, per 100 parts by weight of the copolymer, of water and at least 5 parts by weight, per 100 parts by weight of water, of a water-soluble inorganic salt. A process for the preparation of an anion exchange resin is also described, which comprises acting a haloalkylating agent on an aromatic crosslinked copolymer, separating an unreacted portion of the haloalkylating agent from the aromatic crosslinked haloalkyl-containing copolymer so obtained, and reacting the resulting haloalkyl-containing copolymer with an amine in the presence of at least 100 parts by weight, per 100 parts by weight of the copolymer, of water and at least 5 parts by weight, per 100 parts by weight of water, of a water-soluble inorganic salt.Type: GrantFiled: October 31, 1996Date of Patent: March 10, 1998Assignee: Mitsubishi Chemical CorporationInventors: Takeshi Teraue, Youichi Tamura
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Patent number: 5721315Abstract: A compound comprising a blend of polypropylene with the reaction product of a functionalized polypropylene and polyether amine in which the polyether amine is grafted onto the functionalized polypropylene in a customary mixing apparatus is disclosed. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed.Type: GrantFiled: August 16, 1995Date of Patent: February 24, 1998Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard Joseph Gilbert Dominguez, Richard James Clark
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Patent number: 5717043Abstract: In a polymerization process of at least one of monomers selected from the group consisting of conjugated diene compounds such as butadiene and vinylaromatic compounds such as styrene, an organolithium compound such as butyllithium is added to the polymerization system first in the presence of the monomer, and thereafter a secondary amine compound such as saturated cyclic imine is added thereto to produce a soluble initiator by bringing the both compound into contact with each other. Polymerization is carried out with the soluble initiator formed. The obtained high molecular weight polymer is modified with a coupling agent such as tin tetrachloride. The polymer obtained has a high molecular weight, a narrow molecular weight distribution, and controlled molecular weight, and exhibits remarkable coupling property, low hysteresis loss. The process provides a polymer having a consistent characteristic, regardless of production scale and procedures of adding materials.Type: GrantFiled: October 16, 1996Date of Patent: February 10, 1998Assignee: Bridgestone CorporationInventors: Atushi Nakayama, Koichi Morita, Masaaki Izuchi
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Patent number: 5710213Abstract: Novel functionalized peroxides which may be used as crosslinking, grafting and curing agents, initiators for polymerization reactions and as monomers for condensation polymerizations to form peroxy-containing polymers, which in turn can be used to prepare block and graft copolymers, have the following Formula I: ##STR1## R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, X, Y.sup.1, Y.sup.2, Y.sup.3, Z.sup.1, Z.sup.2, x, y and z are as defined in the Summary of the Invention. The compounds of Formula I may be prepared by reacting hydroxy-containing tertiary hydroperoxides with diacid halides, phosgene, dichloroformates, diisocyanates, anhydrides and lactones to form the functionalized peroxides. These reaction products may be further reacted, if desired, with dialcohols, diamines, aminoalcohols, epoxides, epoxy alcohols, epoxy amines, diacid halides, dichloroformates and diisocyanates to form additional functionalized peroxides.Type: GrantFiled: June 6, 1995Date of Patent: January 20, 1998Assignee: Elf Atochem North America, Inc.Inventor: Daryl L. Stein
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Patent number: 5700888Abstract: The present invention provides a method of anionic synthesis of stable macrocyclic polymers that are compounded to form vulcanizable elastomeric compounds exhibiting reduced hysteresis properties. Cyclic organometallic compounds containing divalent metal atoms of Groups IIA and IIB of the Periodic System are employed as initiators of anionic polymerization of conjugated diene, vinyl aromatic and/or triene monomers. Coupling of the living ends of the resulting macrocyclic polymers or copolymers with a coupling agent or a coupling agent that is also a functionalizing agent results in stable macrocyclic polymers with improved hysteresis properties.Type: GrantFiled: November 10, 1996Date of Patent: December 23, 1997Assignee: Bridgestone CorporationInventor: James E. Hall
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Patent number: 5691417Abstract: A coating medium suitable for multilayer coatings, containingA) copolymers containing hydroxyl groups, comprisinga1) 8-12% by weight of vinyl esters of alpha, alpha,dialkyl-substituted, branched, aliphatic saturated monocarboxylic acids,a2) 32-42% by weight of hydroxyalkyl esters of (meth)acrylic acid,a2) 25-40% by weight of alkyl esters of (meth)acrylic acid,a4) 12-24% by weight of cycloalkyl esters of (meth)acrylic acid, anda5) 2-4% by weight of (meth)acrylic acidwith a hydroxyl number of 100-160 mg KOH/g, an acid number of 10-50 mg KOH/g, a number average molecular weight (Mn) of 1000 to 3000 g/mole and a glass transition temperature (Tg) of 30.degree.-80.degree. C.,B) polyisocyanates in a quantitative proportion such that 0.5 to 2 isocyanate groups are allotted to one hydroxyl group of component A), andC) solvents and optionally one or more pigments, extenders and/or customary lacquer additives.Type: GrantFiled: June 27, 1996Date of Patent: November 25, 1997Assignee: Herberts Gesellschaft mit Beschrankter HaftungInventors: Gerhard Bremer, Hermann Kerber, Manfred Krumme, Olaf Ley, Werner Stephan
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Patent number: 5684093Abstract: Nitrogen-containing functionalised polymers may be obtained by reacting olefinically-unsaturated polymers and N-substituted amido or imido compounds in the presence of an acid catalyst. The compounds may be useful as oil additives, for example, as dispersants, in lubricating or fuel oil compositions.C.sub.2 to C.sub.25 olefins may be reacted with N-substituted amido or imido compounds to obtain dihydrooxazine compounds, which may be useful as chemical intermediates.Type: GrantFiled: September 5, 1995Date of Patent: November 4, 1997Assignee: Exxon Chemical Patents IncInventors: Robert Dryden Tack, Jacob Isaac Emert, Alan R Katritzky, Irina V Shcherbakova
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Patent number: 5677399Abstract: The invention is a practical process for anionically synthesizing commercially significant quantities of macrocyclic polymers from polar and/or non-polar monomers by using Group IIA and IIB metal cyclic organometallic initiators. Activation of the ring metal atom results in anionic polymerization of the monomers by addition into the initiator ring at the bonds between the atom and its two adjacent carbon atoms, the metal atom acting as a bridge between the two living ends of the propagating chain. Coupling of the cyclic polymer living ends by coupling agents produces macrocyclic polymers that are stable in air and moisture and that exhibit desirable properties, such as low viscosities at high molecular weights. Such macrocyclic polymers provide enhanced polymer processability during molding, extruding and the forming of films.Type: GrantFiled: November 7, 1996Date of Patent: October 14, 1997Assignee: Bridgestone CorporationInventor: James E. Hall
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Patent number: 5665827Abstract: The invention is a practical process for anionically synthesizing multiblock polymers containing a plurality of blocks formed from polar and/or non-polar monomers by using a cyclic organometallic compound initiator that comprises a divalent metal atom and an organic moiety contained in a ring, preferably a cycloorganomagnesium initiator. Activation of the ring metallic atom results in anionic polymerization of the monomers by addition into the initiator ring at the bonds between the metallic atom and its two adjacent carbon atoms, the metallic atom acting as a bridge between the two living ends of the propagating chain. The active chain ends can be coupled or terminated.Type: GrantFiled: November 7, 1996Date of Patent: September 9, 1997Assignee: Bridgestone CorporationInventor: James E. Hall
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Patent number: 5665843Abstract: An allylbiguanide polymer having the following formula: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 stand, independently of each other, for a hydrogen atom, a substituted or non-substituted aliphatic hydrocarbon group, a substituted or non-substituted alicyclic hydrocarbon group or a substituted or non-substituted aromatic group and n represents an average degree of polymerization of at least 2, or an acid addition salt thereof. The polymer may be obtained by polymerizing an allylbiguanide compound of the formula shown below or an acid addition salt thereof at a pH of 5 or less, ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 have the same meaning as above.Type: GrantFiled: February 1, 1996Date of Patent: September 9, 1997Assignee: Director-General of Agency of Industrial Science and TechnologyInventor: Kokoro Iio
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Patent number: 5656721Abstract: The present invention provides a sugar derivative of a biologically active peptide, which derivative has a prolonged duration of action when compared to the non-sugar modified peptide, and contains at least on one of the amino acid units a sugar residue which is attached to an amino group thereof by a coupling other than a direct N-glycosidic bond, and additionally, when it is a condensation product of a carboxyl group containing sugar and a peptide with less than 8 amino acid units, by a coupling other than a direct amide bond.Type: GrantFiled: July 7, 1994Date of Patent: August 12, 1997Assignee: Sandoz Ltd.Inventors: Rainer Albert, Wilfried Bauer, Francois Cardinaux, Monika Mergler, Janos Pless, Walter Prikoszovich
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Patent number: 5648400Abstract: A monomer having cationic groups and a monomer having anionic groups are introduced into polymeric substrates such as fibers, woven fabrics, nonwoven fabrics and membranous materials through radiation-initiated graft polymerization, thereby producing polymeric electrolyte complexes that have good physical properties and which can be formed into shapes that suit specific uses. Also disclosed is a process according to which hydrophilic groups and/or ion-exchange groups are introduced into polymeric substrates such as fibers, woven fabrics, nonwoven fabrics and membranous materials through radiation-initiated graft polymerization. To introduce hydrophilic groups and/or ion-exchange groups, two or more monomers are used as selected from among hydrophilic monomers, monomers having cation-exchange groups (e.g. acrylic acid, methacrylic acid and styrenesulfonic acid salt), and monomers having anion-exchange groups (e.g. vinylbenzyltrimethyl ammonium salt and diethylaminoethyl methacrylate).Type: GrantFiled: June 16, 1995Date of Patent: July 15, 1997Assignees: Japan Atomic Energy Research Inst., Nikki Chemical Co., Ltd.Inventors: Takanobu Sugo, Satoshi Tanaka, Tsuyoshi Tsutsui
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Patent number: 5646098Abstract: The invention relates to novel compositions comprising ene and free radical adducts of unsaturated and saturated hydrocarbons, and acyclic and cyclic vicinal polycarbonyl compounds such as diethyl ketomalonate and indantrione. The adducts are reacted with nucleophiles such as amines, electrophiles such as anhydrides and esters, and metal ions. Post-products are obtained via reaction of said products with capping reagents such as boric acid. Compositions containing said adducts, products and post-products include oleaginous substances such as fuels and lube oils.Type: GrantFiled: May 13, 1994Date of Patent: July 8, 1997Assignee: Exxon Chemical Patents IncInventor: Stanley J. Brois
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Patent number: 5641841Abstract: An improved disk drive system using a non-ferrofluid conductive lubricant is disclosed. In the disk drive system, there is a plurality of critically spaced magnetic disks rotated by a disk motor. A spindle shaft, which is retained by the spindle sleeve, couples to the disk motor and to the plurality of magnetic disks for rotation. The spindle shaft and spindle sleeve uses a bearing, which is lubricated by a non-ferrofluid conductive lubricant. The lubricant is used to prevent electrostatic charge build up during operation of the disk drive system. The lubricant may be either a non-polar oil or a ball bearing grease and further comprising either a metal caged fullerenes compound, STADIS-450, ASA-3, or Polyfloe 130. One particular type of lubricant is an emeraldine salt of polyanilin produced according to the steps of first reacting a solution of HCL and ammonium persulfate into a solution of HCL and analine to form a polymer.Type: GrantFiled: June 7, 1995Date of Patent: June 24, 1997Assignee: International Business Machines CorporationInventors: Arthur Fred Diaz, Robert D. Johnson, Thomas Edward Karis, Holavanahally S. Nagaral, My Thanh Nguyen
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Patent number: 5637651Abstract: This invention relates to a process for modifying a polyolefin having 10 to 120 carbon atoms and in which the unsaturated groups are predominantly of the vinylidene type (.dbd.CH.sub.2) said process comprising bringing the polyolefin into contact with a generator of carbenes or of nitrenes in an addition reaction in order to enable the carbenes or the nitrenes to add across the vinylidene unsaturation of the polyolefin. The products can be used as lubricating oil and fuel additives.Type: GrantFiled: August 31, 1995Date of Patent: June 10, 1997Assignee: BP Chemicals LimitedInventor: John R. Blackborow
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Patent number: 5631327Abstract: Aminated polymers capable of reversibly complexing carbon dioxide and other acid gases including CO.sub.2, SO.sub.2, NO.sub.x and H.sub.2 S, a method of using such polymers and an operational unit including such polymers are disclosed. The polymers incorporate amine group which reversibly complex acid gases. Such polymers provide a significant advantages over presently used sorbents used to remove acid gas.Type: GrantFiled: September 12, 1995Date of Patent: May 20, 1997Assignee: University of PittsburghInventor: Eric J. Beckman
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Patent number: 5627261Abstract: A ketone/formaldehyde crosslinking additive having reduced and stabilized free-formaldehyde content and which are useful in starch based alkaline corrugating adhesive compositions are provided by a process wherein the ketone/aldehyde additives are treated with hydrogen peroxide and further with an urea compound.Type: GrantFiled: March 15, 1994Date of Patent: May 6, 1997Assignee: National Starch and Chemical Investment Holding CorporationInventors: Norman G. Albrecht, Michael T. Foran
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Patent number: 5625017Abstract: A process for preparing a polymer comprises polymerizing a conjugated diene monomer and/or a vinylaromatic hydrocarbon monomer in a hydrocarbon solvent in the presence of or in the absence of a randomizer by using a lithium polymerization initiator which is formed by bringing an organolithium compound and at least one secondary amine compound into contact with each other in the polymerization system in the presence of at least said monomer, wherein the polymerization conversion at the time of contact is less than 5%. The secondary amine is an amine compound having two hydrocarbon groups bonded to N or an imine compound in which an NH group and a saturated or unsaturated cyclic structure group form a cyclic structure. The cyclic structure group comprises a hydrocarbon group as the ring member and may also comprise N or O.Type: GrantFiled: September 21, 1995Date of Patent: April 29, 1997Assignee: Bridgestone CorporationInventors: Koichi Morita, Atsushi Nakayama, Yoichi Ozawa, Ryota Fujio
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Patent number: 5616153Abstract: A novel copolymer of an unsaturated acidic reactant and an atactic vinyl terminated propene polymer (VTPP) and its use in preparation of fuel and lubricant additives is taught. The VTPP has a major amount of polymer chains containing terminal vinyl unsaturation, a number average molecular weight of at least 500, and comprises at least 70 weight per cent propene and 0 to 30 weight per cent of at least one olefin selected from the group consisting of C.sub.2 and C.sub.4 to C.sub.10 olefins. The unsaturated acidic reactant comprises at least one unsaturated C.sub.4 to C.sub.10 carboxylic or dicarboxylic acid or anhydride. An oil soluble dispersant additive of the invention useful in oleaginous compositions is prepared by contacting the atactic VTPP copolymer with at least one nucleophilic reagent selected from the group consisting of amines, alcohols, metal reactants and mixtures thereof under conditions effective to form adducts of the nucleophilic reagent with the copolymer.Type: GrantFiled: October 3, 1995Date of Patent: April 1, 1997Assignee: Ethyl CorporationInventors: Carl A. Mike, Joseph J. Valcho, Daniel Yuan-Fu Yu
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Patent number: 5608010Abstract: An electrophotographic photoconductor is composed of a substrate and a photoconductive layer formed thereon. The photoconductive layer is composed of a polymer including an acrylic acid ester moiety of formula (I) as repeat unit: ##STR1## wherein R.sup.1 represents hydrogen or a methyl group; R.sup.2, R.sup.3, and R.sup.4 each represent an alkyl group having 1 to 4 carbon atoms, a benzyl group, a phenyl group, a phenoxyl group, chlorine or bromine; n is an integer of 1 to 4; m is 0 to 1; and k is 0 or 1.The polymer and the monomer from which the polymer is prepared are synthesized.Type: GrantFiled: August 7, 1995Date of Patent: March 4, 1997Assignee: Ricoh Company, Ltd.Inventors: Hiroshi Tamura, Toshio Fukagai, Naoshi Mishima, Masaomi Sasaki
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Patent number: 5608012Abstract: Copolymers of particularly low viscosity, which can be prepared by a polymerization in bulk, in which one component (A) is initially charged and, in the further course of the polymerization, at least two olefinically unsaturated copolymerizable monomers (B) are added, of which at least one contains at least one COOH group and at least one is sterically-hindered are usefully employed in coating compositions.Type: GrantFiled: May 8, 1995Date of Patent: March 4, 1997Assignee: Hoechst AktiengesellschaftInventors: Ulrich Epple, Uwe Kubillus, Holger Schmidt
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Patent number: 5602208Abstract: The invention relates to the use of aminoalkanolamide esters as processing aids, more particularly as lubricants and/or mold release agents, for thermoplastics.Type: GrantFiled: March 14, 1994Date of Patent: February 11, 1997Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Joerg-Dieter Klamann, Dieter Kramptiz, Andreas Lippmann, Uwe Ploog
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Patent number: 5591804Abstract: A compound having the formula: ##STR1## where Q is an onium ion; A.sup.- is a counterion; R.sup.1, R.sup.2, R.sup.3, and R.sup.4, independently, comprise (a) a non-fluorinated alkyl, cycloalkyl, aryl, or aralkyl group; (b) an onium-containing group; or (c) a group having the formula --(CH.sub.2).sub.n --Y--R.sup.5 in which n is at least two; Y is a spacer arm comprising a --CH.sub.2 --, --O--, --OCH.sub.2 --, --S--, --SO.sub.2 --, or --Z--SO.sub.2-- group; Z is an --R.sup.6 --O--, --N(R.sup.7)--, or --N(H)-- group; R.sup.6 is a substituted or unsubstituted phenylene group; R.sup.7 is a non-fluorinated alkyl, cycloalkyl, aryl, or alkaryl group; and R.sup.5 is a fluorinated group, perfluorinated group, or combination thereof, with the proviso that (i) at least one of R.sup.1, R.sup.2, R.sup.3, and R.sup.4 comprises a group having the formula --(CH.sub.2).sub.n --Y--R.sup.5 ; (ii) the total number of fluorine atoms in said compound is at least 5; and (iii) when Q is a sulfonium ion, there is no R.sup.4 group.Type: GrantFiled: December 21, 1995Date of Patent: January 7, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventors: William D. Coggio, Dirk H. C. Arren, Douglas S. Parker, Allan T. Worm
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Patent number: 5591807Abstract: A coating composition having extended pot-life and excellent cure at ambient conditions. The coating composition comprises (i) at least one imine, (ii) a polyisocynate having an average of at least two isocyanate groups per molecule, (iii) at least one polyaspartic ester, and (iv) an anhydride functional polymer; wherein the coating composition is substantially free of hydroxy functionality.Type: GrantFiled: May 23, 1995Date of Patent: January 7, 1997Assignee: The Sherwin-Williams CompanyInventors: Rubing Cai, Walter E. Hawrysko
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Patent number: 5587420Abstract: In one of several methods of producing polybutadiene or a butadiene-styrene copolymer with an organolithium initiator, an organotin compound such as tetraallyltin, tetrabenzyltin and tetraphenyltin is added to the polymerization system in a period of growth of the polymer chain between a time immediately after a start of the polymerization to a time before an end of the polymerization. In another of the methods, tin tetrachloride or tin dichloride is added at an earlier time after a start of the polymerization. A polymer comprising a considerable amount of high molecular weight polymer containing the chain having a tin-carbon linkage is formed. A rubber composition for tires comprises specified amounts of the polymer described above, natural rubber, carbon black and vulcanizing agents. The rubber composition has a small loss factor and excellent fracture properties.Type: GrantFiled: June 3, 1993Date of Patent: December 24, 1996Assignee: Bridgestone CorporationInventors: Toshiki Takizawa, Yasuo Horikawa, Taro Akazawa
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Patent number: 5587428Abstract: This invention relates to a polymeric vehicle which reduces or eliminates VOCs in coating compositions by providing a formulated coating composition which does not require an organic solvent for application to a substrate. The polymeric vehicle of the invention comprises at least one linear oligoester diol effective for crosslinking with a crosslinker, and having a number average molecular weight within controlled limits of a polydispersity index effective for controlling the viscosity of the polymeric vehicle.Type: GrantFiled: June 7, 1995Date of Patent: December 24, 1996Assignee: Eastern Michigan UniversityInventors: Frank N. Jones, Shou-Kuan Fu, Jun Hua, Xiaoying Yuan
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Patent number: 5587426Abstract: The present invention provides:(1) a self-crosslinking resin (I) having a blocked isocyanate group and a hydroxyl group in the molecule and characterized in that the resin is prepared from a vinyl polymer (A) having at least two free isocyanate groups in the molecule and an acrylic resin (B) having at least two hydroxyl groups in the molecule by reacting some of the hydroxyl groups of the resin (B) with some of the free isocyanate groups of the polymer (A), and subsequently reacting a blocking agent with all the remaining free isocyanate groups, and(2) a self-crosslinking resin (II) having a blocked isocyanate group and a hydroxyl group in the molecule and characterized in that the resin is prepared from a vinyl polymer (C) having a free isocyanate group and a blocked isocyanate group in the molecule and the acrylic resin (B) having at least two hydroxyl groups in the molecule by reacting some of the hydroxyl groups of the resin (B) with all the free isocyanate groups of the polymer (C).Type: GrantFiled: March 2, 1993Date of Patent: December 24, 1996Assignee: Kansai Paint Company, LimitedInventors: Yoshiyuki Yukawa, Motoshi Yabuta, Akimasa Nakahata, Yoh Sugimura
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Patent number: 5576406Abstract: It is an objective of the present invention to provide, in particular, a curable composition of an extremely high utility which yields a cured film having excellent acid resistance and the like. The curable composition of the present invention is used mainly for paints, adhesives, or sealing agents. The curable composition is based on crosslinking reaction between a specific substituted methyl ester group exemplified by an alkoxymethyl ester group and other functional groups, i.e., an epoxy group and an active hydrogen-containing group such as a hydroxyl group, a carbamate group, and an acetoacetoxy group.Type: GrantFiled: December 15, 1994Date of Patent: November 19, 1996Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Kazuo Yamamura, Masataka Ooka
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Patent number: 5573828Abstract: The use of cyclamic acid as a catalyst for the curing of hydroxyl-functional resins having a functionality greater than 2 provides a wrinkle finish. The hydroxy-function may be present in polyesters, epoxies, and acrylate or methacrylate resins, among others. The polyester resins which are able to provide such a finish have a hot plate melt flow of from about 20 mm to about 150 mm.Type: GrantFiled: March 30, 1995Date of Patent: November 12, 1996Assignee: Morton International, Inc.Inventors: Paul R. Horinka, E. Susanne Deibert, Diane K. Pennington, Gerald T. Werner, Jr.
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Patent number: 5569720Abstract: A polymer conjugate consisting essentially of: from 90 to 99.9 mol % of units represented by the formula ##STR1## from 0.1 to 5 mol % of units represented by the formula ##STR2## wherein one of R.sub.1 and R.sub.2 is a copolymer residue of the formula ##STR3## and the other one is hydrogen atom; from 0 to 9.9 mol % of units represented by the formula ##STR4## wherein R is a phenyl or t-butoxy group, R.sub.3 is H or an acetyl group, A and A.sub.1 which may be the same or different, represent a chemical single bond, an amino acid residue or peptide spacer selected from .beta. Ala, Gly, Phe-Gly, Phe-Phe-, Leu-Gly, Val-Ala, Phe-Ala, Leu-Phe, Leu-Ala, Phe-Leu-Gly, Phe-Phe-Leu, Leu-Leu-Gly, Phe-Tyr-Ala, Phe-Gly-Phe, Phe-Phe-Gly, Phe-Leu-Gly-Phe, Gly-Phe-Leu-Gly-Phe,Gly-.beta.Ala, Phe-Gly-.beta.Ala, Phe-Phe-.beta.Ala, Leu-Gly-.beta.Ala, Val-Ala-.beta.Ala, Phe-Ala-.beta.Ala, Leu-Phe-.beta.Ala, Leu-Gly-.beta.Ala, Phe-Leu-Gly-.beta.Ala, Phe-Phe-Leu .beta.Ala, Leu-Leu-Gly-.beta.Ala, Phe-Tyr-Ala-.beta.Ala, Phe-Gly-Phe-.Type: GrantFiled: July 27, 1995Date of Patent: October 29, 1996Assignee: Farmitalia Carlo Erba S.r.l.Inventors: Nicola Mongelli, Francesco Angelucci, Enrico Pesenti, Antonino Suarato, Giovanni Biasoli
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Patent number: 5569721Abstract: Rubber compounds containing at least one rubber, a crosslinking agent, a silica-containing filler, optionally other rubber auxiliaries and at least one of the compounds corresponding to formulae (I) and (II): ##STR1## compound (I) being used in quantities of 0.1 to 15% by weight and compound (II) being used in quantities of 0.05 to 5% by weight, based on the quantity of the particular rubber used, and their use for the production of rubber vulcanizates.Type: GrantFiled: May 8, 1995Date of Patent: October 29, 1996Assignee: Bayer AktiengesellschaftInventors: Thomas Scholl, Hermann-Josef Weidenhaupt