Two Amine Groups Patents (Class 525/382)
-
Patent number: 5959048Abstract: An acyclic alkane soluble anionic polymerization initiator includes a mixture of from about 90 to about 10 parts by weight of a lithio amine having the general formula A.sub.1 Li and from about 10 to about 90 parts by weight of at least one other lithio amine having the general formula A.sub.2 Li. A.sub.1 and A.sub.2 are selected from the dialkyl, alkyl, cycloalkyl and dicycloalkyl amine radicals and cyclic amine radicals. There is also provided a method of forming a mixture of anionic polymerization initiators, a functionalized polymer and a method of forming a functionalized polymer.Type: GrantFiled: July 1, 1997Date of Patent: September 28, 1999Assignee: Bridgestone CorporationInventors: David F. Lawson, James E. Hall, Yoichi Ozawa
-
Patent number: 5955548Abstract: Substituted cyanoenamines of the formula I ##STR1## wherein Z, R.sup.1, R.sup.2 and R.sup.3 are defined in the description, compositions thereof and methods for preparing the compounds are disclosed. The compounds are useful in the treatment of diseases of the central nervous system, the cardiovascular system, the pulmonary system, the gastrointestinal system and the endocrinologic system.Type: GrantFiled: May 4, 1998Date of Patent: September 21, 1999Assignee: Novo Nordisk A/SInventors: Florenzio Zaragonza Dorwald, John Bondo Hansen
-
Patent number: 5942576Abstract: 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: November 3, 1997Date of Patent: August 24, 1999Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard Joseph Gilbert Dominguez, Richard James Clark
-
Patent number: 5936041Abstract: The invention pertains to improved lubricating oil dispersants wherein a fractionating polymer is prepared prior to functionalization (e.g., in the Koch reaction) for making dispersant additives. In one aspect, it was discovered that by fractionating a polymer to remove light hydrocarbon and unreacted monomer from the polymer before the carbonylation step of the Koch reaction, the amount of light ester impurities generated was minimized. Light ester is an undesirable byproduct that adversely affects the recycle of the catalyst from the functionalization step of the Koch reaction. The invention also pertains to improved lubricating oil nitrogen-containing dispersant additives derived from fractionated polymer.Type: GrantFiled: December 27, 1995Date of Patent: August 10, 1999Assignee: Exxon Chemical Patents IncInventors: William B. Diana, Joseph V. Cusumano, Keith R. Gorda, Jacob Emert, William B. Eckstrom, David C. Dankworth, Jon E. Stanat, James P. Stokes
-
Patent number: 5936004Abstract: Anion-exchanging molded bodies and a method of manufacturing the same. The aim is to find anion-exchangers which can be produced in any shape simply, cheaply and reproducibly, without the use of carcinogenic chloromethyl ethers. It has been established that halogenated polyethers, preferably epichlorhydrin polymers, can be treated with tertiary amines together with inert polymers to produce such anion-exchanging molded bodies by a phase-inversion process or evaporation of the solvent. These molded bodies can be in the form of blocks, balls or films.Type: GrantFiled: August 14, 1997Date of Patent: August 10, 1999Inventor: Patrick Altmeier
-
Patent number: 5936029Abstract: 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: September 29, 1997Date of Patent: August 10, 1999Assignee: Bridgestone CorporationInventor: James E. Hall
-
Patent number: 5932665Abstract: By carefully adjusting the molecular weight and amounts of methacrylic acid and maleic acid and/or maleic anhydride comonomers in polyacrylic acid-based fiberglass binders, binder-treated fiberglass cured and B-staged product throughput may be maintained at production rates designed for phenol/formaldehyde binders due to the lower thermal requirements for cure as compared to homopolyacrylic acid-based binder systems.Type: GrantFiled: February 6, 1997Date of Patent: August 3, 1999Assignee: Johns Manville International, Inc.Inventors: Craig Donald DePorter, Thomas John Taylor
-
Patent number: 5929272Abstract: Epoxide-amine adducts having a proportion by mass of at least 20% of aliphatic epoxide or amine units which comprise at least one tertiary or quaternary carbon atom are disclosed. The adducts are employed as binders for coatings of relatively high environment-friendliness, if desired, for example, in a mixture with other hydroxy-functional binders, and as reactive component in corresponding adhesive compositions and sealing compounds.Type: GrantFiled: May 2, 1996Date of Patent: July 27, 1999Assignee: Vianova Resins GmbHInventors: Ulrich Epple, Manfred Marten, Uwe Kubillus, Harald Oswald
-
Patent number: 5919869Abstract: A polymer having a terminal hydroxyl, aldehyde or alkylamino substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the polymer has a M.sub.n of about 300 to 10,000, and is derived from a polyolefin which is derived from a polyene (diene, e.g.), monomer of the formula H.sub.2 C.dbd.CHR.sup.4, wherein R.sup.4 is hydrogen or a straight or branched chain alkyl radical. Preferably, the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.Type: GrantFiled: March 6, 1998Date of Patent: July 6, 1999Assignee: Exxon Chemical Patents, Inc.Inventors: Warren A. Thaler, Jacob I. Emert, Istvan T. Horvath, Richard H. Schlosberg, David A. Young, Stephen Zushma
-
Patent number: 5916961Abstract: The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with a lithium amine initiator and, optionally, a modifier; effecting polymerization conditions; terminating polymerization with an amino group producing terminator to form an amine functionalized diene elastomer; compounding the amine functionalized diene elastomer with an amorphous silica filler and a vulcanization agent; and, effecting vulcanization. A pneumatic tire tread stock incorporating the vulcanized elastomer compound exhibits decreased rolling resistance in the tire.Type: GrantFiled: July 11, 1997Date of Patent: June 29, 1999Assignee: Bridgestone CorporationInventors: William L. Hergenrother, Thomas J. Lynch
-
Patent number: 5900464Abstract: Polar polymers having the following formula:FG--(Q).sub.d --R.sub.n --Z--J--?A(R.sup.1 R.sup.2 R.sup.3)!.sub.x(I)wherein FG is H or a protected or non-protected functional group; Q is a polar hydrocarbyl group derived by incorporation of a polar compound selected from group consisting of esters, amides, and nitriles of acrylic and methacrylic acid, and mixtures thereof; d is an integer from 10 to 2000; R is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons, alkenylsubstituted aromatic hydrocarbons, and mixtures thereof; n is an integer from 0 to 5; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; J is oxygen, sulfur, or nitrogen; ?A(R.sup.1 R.sup.2 R.sup.3)!.sub.x is a protecting group, in which A is an element selected from Group IVa of the Periodic Table of Elements; R.sup.1, R.sup.2, and R.sup.Type: GrantFiled: July 10, 1996Date of Patent: May 4, 1999Assignee: FMC CorporationInventors: Robert J. Letchford, James A. Schwindeman, Conrad W. Kamienski, Roderic P. Quirk
-
Patent number: 5891956Abstract: Water-soluble polymers including functionalization from the group of amino groups, carboxylic acid groups, phosphonic acid groups, phosphonic ester groups, acylpyrazolone groups, hydroxamic acid groups, aza crown ether groups, oxy crown ethers groups, guanidinium groups, amide groups, ester groups, aminodicarboxylic groups, permethylated polyvinylpyridine groups, permethylated amine groups, mercaptosuccinic acid groups, alkyl thiol groups, and N-alkylthiourea groups are disclosed.Type: GrantFiled: May 30, 1995Date of Patent: April 6, 1999Assignee: The Regents of the University of California, Office of Technology TransferInventors: Barbara F. Smith, Thomas W. Robison, Joel W. Gohdes
-
Patent number: 5880219Abstract: A polymer having a terminal hydroxyl, aldehyde or alkylamino substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the polymer has a M.sub.n of about 300 to 10,000, and is derived from a polyolefin which is derived from a polyene (diene, e.g.), monomer of the formula H.sub.2 C.dbd.CHR.sup.4, wherein R.sup.4 is hydrogen or a straight or branched chain alkyl radical. Preferably, the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.Type: GrantFiled: April 8, 1997Date of Patent: March 9, 1999Assignee: Exxon Chemical Patents Inc.Inventors: Warren A. Thaler, Jacob I. Emert, Istvan T. Horvath, Richard H. Schlosberg, David A. Young, Stephen Zushma
-
Patent number: 5869581Abstract: Disclosed is a method for preparing an acid- and amine-functional polymer under conditions of free-radical initiated addition polymerization. The method involves copolymerizing an anhydride monomer with an ethylenically unsaturated monomer to produce an anhydride polymer, followed by addition of base thereto, followed immediately by addition of a diamine, and allowing the components to react. The preferred medium is aqueous. Also disclosed is an acid- and amine-functional polymer formed by the free-radical initiated addition polymerization process described herein.Type: GrantFiled: August 15, 1997Date of Patent: February 9, 1999Assignee: Rohm and Haas CompanyInventor: Theodore Tysak
-
Patent number: 5866650Abstract: The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with a lithium amine initiator and, optionally, a modifier; effecting polymerization conditions; terminating polymerization with an amino group producing terminator to form an amine functionalized diene elastomer; compounding the amine functionalized diene elastomer with an amorphous silica filler and a vulcanization agent; and, effecting vulcanization. A pneumatic tire tread stock incorporating the vulcanized elastomer compound exhibits improved reduced hysteresis, or highly balanced wet traction, rolling resistance, snow/ice traction, and mechanical strength when compounded with silica filler and vulcanized, in the tire.Type: GrantFiled: July 11, 1997Date of Patent: February 2, 1999Assignee: Bridgestone CorporationInventors: David F. Lawson, Hideo Takeichi, William L. Hergenrother, Thomas J. Lynch, James Oziomek
-
Patent number: 5859125Abstract: An emulsion of a copolymer of carbon monoxide with an olefinically unsaturated compound dispersed in an aqueous diluent; a curable resin composition in the form of an oil-in-water emulsion comprising a copolymer of carbon monoxide with an olefinically unsaturated compound and a curing agent; and a process for producing a laminated wood composite comprising applying said curable resin composition onto wood parts of the composite, bringing the wood parts of the composite together such that curable resin composition is positioned between adjacent wood parts, and curing the curable resin such that after curing cured resin adheres adjacent wood parts to one another.Type: GrantFiled: July 9, 1997Date of Patent: January 12, 1999Assignee: Shell Oil CompanyInventors: Evert van der Heide, Gerrit Vietje, Chung Wang
-
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
-
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
-
Patent number: 5804667Abstract: The invention pertains to improved lubricating oil dispersants wherein a fractionating polymer is prepared prior to functionalization (e.g., in the Koch reaction) for making dispersant additives. In one aspect, it was discovered that by fractionating a polymer to remove light hydrocarbon and unreacted monomer from the polymer before the carbonylation step of the Koch reaction, the amount of light ester impurities generated was minimized. Light ester is an undesirable byproduct that adversely affects the recycle of the catalyst from the functionalization step of the Koch reaction. The invention also pertains to improved lubricating oil nitrogen-containing dispersant additives derived from fractionated polymer.Type: GrantFiled: November 12, 1997Date of Patent: September 8, 1998Assignee: Exxon Chemical Patents Inc.Inventors: William B. Diana, Joseph V. Cusumano, Keith R. Gorda, Jacob Emert, William B. Eckstrom, David C. Dankworth, Jon E. Stanat, James P. Stokes
-
Patent number: 5792729Abstract: A terpolymer having an average M.sub.n of from 600 to 100,000 is obtained by the terpolymerization of a 1-olefin having from 10 to 30 carbon atoms, maleic anhydride, and a 1,1 -disubstituted polyisobutylene having an average M.sub.n of from 500 to 5,000.Type: GrantFiled: August 20, 1996Date of Patent: August 11, 1998Assignee: Chevron Chemical CorporationInventors: James J. Harrison, William R. Ruhe, Jr.
-
Patent number: 5783630Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyetheramine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. 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. Blends of the present invention are advantageously useful to prepare paintable automotive body parts.Type: GrantFiled: July 7, 1995Date of Patent: July 21, 1998Assignee: Huntsman Petrochemical CorporationInventors: Randall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
-
Patent number: 5780540Abstract: The invention provides dispersants and dispersant viscosity index improvers which include polymers of conjugated dienes which have been hydrogenated and functionalized. The dispersant substances include compositions including a copolymer of two different conjugated dienes, a copolymer of a p-alkylstyrene and a conjugated diene, or a homopolymer of a conjugated diene. The polymers are selectively hydrogenated to produce polymers which have highly controlled amounts of unsaturation, permitting highly selective functionalization. Also provided are lubricant fluids, such as mineral and synthetic oils, which have been modified in their dispersancy and/or viscometric properties by means of the dispersant substances of the invention. Also provided are methods of modifying the dispersancy and/or viscometric properties of lubricating fluids such as mineral and synthetic lubricating oils. The dispersant substances may also include a carrier fluid to provide dispersant concentrates.Type: GrantFiled: October 22, 1996Date of Patent: July 14, 1998Assignee: Mobil Oil CorporationInventors: Ellen Bernice Brandes, Wan-Li Liu, Frederick Charles Loveless
-
Patent number: 5767204Abstract: A fluorine-containing elastomer composition, which comprises a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) and a perfluoro unsaturated nitrile compound represented by the following general formula:CF.sub.2 .dbd.CFO(CF.sub.2)nOCF(CF.sub.3)CN,wherein n is an integer of 2 to 5, and a bis(aminophenyl) 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 or a perfluoroalkylidene group having 1 to 10 carbon atoms and X and Y are a hydroxyl group or an amino group, can produce vulcanized products having good vulcanization physical properties and a.good compression set.Type: GrantFiled: October 16, 1995Date of Patent: June 16, 1998Assignees: Nippon Mektron Limited, The Central Synthetic Rubbers Research InstituteInventors: Riichi Iwa, Haruyoshi Tatsu, Volkova Margarita Alexeevna, Rondarev Dmitrii Stefanovich, Sokolov Sergey Vasilyevich, Greenblat Mark Peysakhovich, Senyushov Lev Nikolaevich
-
Patent number: 5753771Abstract: This invention relates to a method of producing nucleophilic amine functionalized polyolefins by reacting a polymer carrying an electrophilic functional group with a diamine having amino end-groups having different reactivities. The nucleophilic amine functionalized polyolefin has the composition:Polyolefin-X--R.sub.1 --NHR.sub.2where X is selected from the group of imide, amide, sulphonamide or amineR.sub.1 is a bivalent organic radicalR.sub.2 is H or an alkyl groupThe nucleophilic amine functionalized polyolefin has uses as a compatibilizer, adhesive, dyeable material, and dyability improver.Type: GrantFiled: November 6, 1996Date of Patent: May 19, 1998Assignee: Du Pont Canada Inc.Inventor: Haiqi Xie
-
Patent number: 5750627Abstract: A crosslinkable composition for coating primed and unprimed substrates comprising from 10 to 80 percent by weight of a hydroxy functional polydiene polymer having a functionality of at least 1.3, 8 to 60 percent by weight of an amino resin crosslinking agent, and 2 to 40 percent by weight of a reinforcing agent. The invention also encompasses a process to make such compositions by partially reacting the three components for 0.5 to 10 hours at 60.degree. to 120.degree. C., optionally in the presence of a small amount of catalyst, to give phase stable compositions and subsequently completely crosslinking the composition by baking the composition on a substrate.Type: GrantFiled: November 13, 1996Date of Patent: May 12, 1998Assignee: Shell Oil CompanyInventor: David John St. Clair
-
Patent number: 5741865Abstract: The tendency to opacify of a polyol composition comprising one or more zinc fatty acid salts such as zinc stearate, added to form a mold release agent when the polyol is converted to a molded polyurethane article, is retarded by the presence of a small but effective amount of one or more fatty alkyl diethoxylate (e.g. diethanolamine) compounds.Type: GrantFiled: July 18, 1995Date of Patent: April 21, 1998Assignee: Witco CorporationInventors: Charles R. Bunting, Donald G. Zelhart
-
Patent number: 5731383Abstract: This invention relates to difunctional telechelic linear non-crosslinked polyolefins without pendant chain branched groups. The polyolefin compounds of this invention are useful for preparing high molecular weight polyesters, polyamides, polyureas and polyurethanes of high density without branching of the polymer chains, and with low permeability to gases and solvents.Type: GrantFiled: September 3, 1996Date of Patent: March 24, 1998Assignee: Amoco CorporationInventors: Philip O. Nubel, Howard B. Yokelson
-
Patent number: 5723533Abstract: An acyclic alkane soluble anionic polymerization initiator includes a mixture of from about 90 to about 10 parts by weight of a lithio amine having the general formula A.sub.1 Li and from about 10 to about 90 parts by weight of at least one other lithio amine having the general formula A.sub.2 Li. A.sub.1 and A.sub.2 are selected from the dialkyl, alkyl, cycloalkyl and dicycloalkyl amine radicals and cyclic amine radicals. There is also provided a method of forming a mixture of anionic polymerization initiators, a functionalized polymer and a method of forming a functionalized polymer.Type: GrantFiled: November 26, 1996Date of Patent: March 3, 1998Assignee: Bridgestone CorporationInventors: David F. Lawson, James E. Hall, Yoichi Ozawa
-
Patent number: 5712363Abstract: The present invention relates to coating compositions including a particular class of oligomeric sterically hindered polyamines as replacements for traditional blocked and unblocked polyamine crosslinkers. The use of these oligomeric sterically hindered polyamine crosslinkers resultss in a desirable pot life/cure speed relationship not generally available with traditional unblocked polyamine crosslinkers, as well as a lower VOC and often better appearance characteristics than generally available with the traditional blocked varieties.Type: GrantFiled: August 28, 1995Date of Patent: January 27, 1998Assignee: Akzo Nobel NVInventors: Arie Noomen, Thomas Mezger, Klaus Hobel, Keimpe Jan van den Berg
-
Patent number: 5700879Abstract: A fluorine-containing elastomer composition, which comprises a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) and cyano group-containing (perfluorovinylether) represented by the following general formula:CF.sub.2 .dbd.CF?OCF.sub.2 CF(CF.sub.3)!nCNwherein n is an integer of 1 to 5, and a bis(aminophenyl) compound represented by the following general formula as a cross-linking agent: ##STR1## , wherein A is, for example, an alkylidene group, and X and Y are a hydroxyl group or an amino group, can produce vulcanized products having a good heat resistance and good physical properties, and the bis(aminophenyl) compound has no problem as to its safety.Type: GrantFiled: October 16, 1995Date of Patent: December 23, 1997Assignees: The Central Synthetic Rubbers Research Institute, Nippon Mektron LimitedInventors: Yuichi Yamamoto, Haruyoshi Tatsu, Volkova Margarita Alexeevna, Sokolov Sergey Vasilyevich, Veretennikov Nikolai Vladimirovich
-
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
-
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
-
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
-
Patent number: 5658779Abstract: A method of adsorbing from a solution comprising a biological sample viruses which retain their viability and infectivity. The method comprises adjusting the pH of said solution to pH 6.0 to 8.0; adding an effective amount of a water insoluble cross-linked polycarboxylic acid polymer ("WCPP") into said solution in a volume:volume ratio of WCPP to solution of 100:1 to 1:10,000 to form a WCPP-solution mixture; incubating said WCPP-solution mixture for a time sufficient to immobilize said viruses on said WCPP forming a WCPP-virus matrix; and separating said matrix from said solution. This novel method is suitable for removing, purifying, recovering and analyzing viable viruses as well as viral components such as viral proteins and nucleic acids.Type: GrantFiled: September 22, 1995Date of Patent: August 19, 1997Assignee: LigoChem, Inc.Inventors: John Krupey, Allen D. Smith, Edward Arnold, Robert Donnelly
-
Patent number: 5637410Abstract: A polyolefin-containing adhesive blend comprising: (A) 1 to 30 parts by weight of a graft copolymer having a polyolefin backbone grafted with 0.001 to 30% by weight of at least one polymerisable ethylenically unsaturated carboxylic acid or derivative thereof, (B) 70 to 99 parts by weight of a polyolefin provided that at least 5 parts by weight of (B) is (C) a polyethylene having a density of less than 930 kgm.sup.-3 wherein the graft copolymer (A) has been reacted with a compound(D) which has at least two primary or secondary amino groups at least one of which is a primary amino group, the sum of (A), (B) and (C) being 100 parts by weight. Multilayer structures comprising a polyolefin layer, a polyketone layer and an intermediate layer of the adhesive blend are also disclosed.Type: GrantFiled: June 14, 1995Date of Patent: June 10, 1997Assignee: BP Chemicals LimitedInventors: James G. Bonner, Philip K. G. Hodgson
-
Patent number: 5633326Abstract: Novel polymers comprising polyolefin-substituted amines grafted with aromatic N-containing monomers such as aniline, have been found to provide oil soluble polymers having dispersant and antioxidant properties in oleaginous compositions, including fuel and lubricating oils. The polymers of this invention are further useful in electrical applications. These materials are formed by a process which comprises: (a) contacting an amine compound having at least two reactive nitrogen moieties with at least one long chain hydrocarbon-substituted reactant in an amount and under conditions sufficient to form a N-containing polymer adduct containing reactive amine groups, and (b) contacting the N-containing polymer adduct with at least one aromatic N-containing monomer under polymerization conditions to graft said N-containing polymer adduct with aromatic N-containing polymer segments.Type: GrantFiled: June 26, 1996Date of Patent: May 27, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Abhimanyu O. Patil, Robert D. Lundberg, Antonio Gutierrez
-
Patent number: 5614595Abstract: Polymers Ia and Ib carrying functional groups and obtainable byA) 1. hydrogenation of the olefinic double bonds of a polymer IIa comprisinga) from 20 to 100% by weight of a conjugated diene,b) from 0 to 80% by weight of an aromatic vinyl compound, andc) from 0 to 20% by weight of further comonomers,to give the hydrogenated polymer IIb,2. metallation of IIb using an organoalkali metal compound to give IIc,3. reaction of IIc with a diaziridine III to give IId, and4. hydrolysis or alcoholysis of IId to give Ia, or byB) 1. partial hydrogenation of IIa to give a partially hydrogenated polymer IIb',2. epoxidation of the double bonds of IIb' to give IIe, and3. reaction of IIe with a compound IV carrying functional groups, to give Ib,are suitable as viscosity index improvers for engine oils.Type: GrantFiled: October 16, 1995Date of Patent: March 25, 1997Assignee: BASF AktiengesellschaftInventors: Dietmar Bender, Klaus Bronstert, Helmut Mach, Martin Fischer
-
Patent number: 5612383Abstract: Weakly basic anion exchangers of the poly(meth)acrylamide type which have been prepared by aminolysis of poly(meth)acrylonitrile or poly(meth)acrylate with polyamines of defined composition have an improved absorption capacity for sulphate ions and are suitable for selectively removing sulphate ions from aqueous liquids, in particular from sodium chloride brine and from waste waters.Type: GrantFiled: May 18, 1995Date of Patent: March 18, 1997Assignee: Bayer AktiengesellschaftInventors: Harold Heller, Franz-Rudolf Minz, Reinhold M. Klipper, Alfred Mitschker, Heiko Hoffmann
-
Patent number: 5599881Abstract: This invention relates to a method of producing nucleophilic amine functionalized polyolefins by reacting a polymer carrying an electrophilic functional group with a diamine having amino end-groups having different reactivities. The nucleophilic amine functionalized polyolefin has the composition:Polyolefin--X--R.sub.1 --NHR.sub.2whereX is selected from the group of imide, amide, sulphonamide or amineR.sub.1 is a bivalent organic radicalR.sub.2 is H or an alkyl groupThe nucleophilic amine functionalized polyolefin has uses as a compatibilizer, adhesive, dyeable material, and dyability improver.Type: GrantFiled: March 7, 1995Date of Patent: February 4, 1997Assignee: DuPont Canada Inc.Inventor: Haiqi Xie
-
Patent number: 5597863Abstract: Immobilized buffered gels obtained from hydroxy group containing natural or synthetic polymers and acid or basic di- or triazine derivatives are useful and highly effective media, e.g. in form of membranes, for preparative isoelectric focusing electrophoresis for separating high molecular compounds, such as proteins or peptides, from biological mixtures.Type: GrantFiled: April 5, 1995Date of Patent: January 28, 1997Assignee: Aligena AGInventors: Charles Linder, Mara Nemas, Mordechai Perry, Reuven Ketraro
-
Patent number: 5597785Abstract: Disclosed the novel compounds prepared by reacting 2,5-dimercapto-1,3,4,-thiadiazole with maleic anhydride and N-polyethylene amine-substituted succinimide. The compounds are dispersants or detergents, antiwear agents and antioxidants when incorporated into lubricating compositions.Type: GrantFiled: June 26, 1995Date of Patent: January 28, 1997Assignee: R. T. Vanderbilt Company, Inc.Inventor: Thomas J. Karol
-
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
-
Patent number: 5591805Abstract: An anhydride-functional polymer is obtained by reacting under ene reaction conditions:(i) an unsaturated anhydride having the structure: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl of 1 to about 6 carbons, or alkoxy of 1 to about 6 carbons, or a halogen; and(ii) at least one polyolefin having at least two carbon-carbon double bonds in the polyolefin backbone and having an average of at least three carbon atoms in the polyolefin backbone between the carbon-carbon double bonds.Type: GrantFiled: February 15, 1996Date of Patent: January 7, 1997Assignee: The Sherwin-Williams CompanyInventors: Mohamad D. Shalati, Rodney M. Harris, Joyce A. Bibeau, Richard S. Valpey, III
-
Patent number: 5567845Abstract: Halogen-free fuel additives based on a long-chain hydrocarbon having a polar terminal group are obtained by reacting a hydroformylated olefin with a polyamine and hydrogenating the reaction product.Type: GrantFiled: October 16, 1995Date of Patent: October 22, 1996Assignee: BASF AktiengesellschaftInventors: Lothar Franz, Juergen Mohr, Peter Schreyer, Juergen Thomas, Knut Oppenlaender, Wolfgang Guenther
-
Patent number: 5563220Abstract: A polymeric resin for the preparation of peptides utilizing a polymeric matrix such as polystyrene-divinylbenzene copolymer. A vanillyl alcohol (HMBA), Trityl alcohol, or Trityl Amine group is attached to the polymeric carrier for use in the building of polypeptides by solid phase peptide synthesis employing the Fmoc protecting strategy.Type: GrantFiled: September 13, 1994Date of Patent: October 8, 1996Assignee: Research & Diagnostic AntibodiesInventors: Robert Webber, Mohandas Pai
-
Patent number: 5563118Abstract: An additive composition comprising a graft and derivatized copolymer prepared from ethylene and at least one (C.sub.3 -C.sub.10) alpha- monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene, from about 20 to 85 mole percent of said (C.sub.3 -C.sub.10) alpha- monoolefin and from about 0 to 15 mole percent of said polyene having an average molecular weight ranging from about 5,000 to 500,000, which has been reacted with at least one olefinic carboxylic acid acylating agent to form one or more acylating reaction intermediates characterized by having a carboxylic acid acylating function within their structure and reacting said reaction intermediate with an amino-aromatic compound to form said graft derivatized copolymer, and a lubricating oil composition containing same are provided.Type: GrantFiled: June 6, 1995Date of Patent: October 8, 1996Assignee: DSM Copolymer, Inc.Inventors: Munmaya K. Mishra, Isaac D. Rubin
-
Patent number: 5559190Abstract: This invention relates to difunctional telechelic linear non-crosslinked polyolefins without pendant chain branched groups. The polyolefin compounds of this invention are useful for preparing high molecular weight polyesters, polyamides, polyureas and polyurethanes of high density without branching of the polymer chains, and with low permeability to gases and solvents.Type: GrantFiled: June 2, 1995Date of Patent: September 24, 1996Assignee: Amoco CorporationInventors: Philip O. Nubel, Howard B. Yokelson
-
Patent number: 5559195Abstract: A coating composition including a first component comprising a compound having appended thereto more than one carbamate functional group, and further including a second component reactive with said carbamate groups, which is a substituted acrylamide compound. The composition is useful as a clearcoating composition in a color-plus-clear composite coating.Type: GrantFiled: December 21, 1994Date of Patent: September 24, 1996Assignee: BASF CorporationInventors: John D. McGee, Brian D. Bammel, John W. Rehfuss
-
Patent number: 5559189Abstract: This invention is directed to fast curing polymer compositions, These compositions comprise a blend of (1) a polymer having pendent activated acetylenic groups and ammonia or a comonomer having at least two functional groups which are reactive with the activated acetylenic groups of the polymer, or (2) a blend of a monomer having at least two activated acetylenic groups and ammonia and/or a comonomer having at least two functional groups which are reactive with the activated acetylenic groups of the monomer.Type: GrantFiled: February 14, 1994Date of Patent: September 24, 1996Assignee: Easter Michigan UniversityInventors: Stoil Dirlikov, Zhao Chen
-
Patent number: 5552473Abstract: The present invention is directed toward anionic polymerization initiators which are soluble in acyclic alkane solvents. The initiators include a solubilized lithio amine having the general formula (A)Li(SOL).sub.y. SOL is a solubilizing component and A is an alkyl, dialkyl or cycloalkyl amine radical or a cyclic amine and y is from about 1 to 4. The cyclic amine has an alkylene, oxy- or amino-alkylene group having from about 3 to about 16 methylene groups. The invention is also directed toward polymers and other products made using the initiator, and methods therefor. Further, the invention contemplates a polymer, a polymer composition and products therefrom, which include a functional group from the reaction product of an amine and an organolithium compound. The resulting polymers may be terminated with a terminating, coupling or linking agent, which may provide the polymer wtih a multifunctionality.Type: GrantFiled: June 5, 1995Date of Patent: September 3, 1996Assignee: Bridgestone CorporationInventors: David F. Lawson, Mark L. Stayer, Jr., David Saffles