With Reactant Which Is Devoid Of A Heterocyclic Ring Containing Oxygen, Selenium Or Tellurium Atoms As Ring Members Patents (Class 528/405)
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Patent number: 6303745Abstract: A polyester having repeating units represented by formula (1): wherein R1 represents a divalent hydrocarbon residue which in its structure may contain a heteroatom having no active hydrogen. The polyester has a high refractive index and biodegradability, and is useful as a material for fibers and plastics.Type: GrantFiled: October 20, 2000Date of Patent: October 16, 2001Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Kiyotaka Shigehara, Yoshihiro Katayama, Seiji Nishikawa, Yasushi Hotta
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Publication number: 20010029309Abstract: The present invention provides acetic anhydride, a method of purifying crude acetic anhydride, and a method of producing polyoxytetramethylene glycol using acetic anhydride.Type: ApplicationFiled: February 16, 2001Publication date: October 11, 2001Inventors: Seiji Nishioka, Ryosuke Maeda, Toshifumi Fukui, Mitsuru Yamashira
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Publication number: 20010021738Abstract: The present invention is the following invention which provides a cement admixture which satisfies fluidity of fresh concrete and high strength of the hardened product of concrete simultaneously.Type: ApplicationFiled: February 27, 2001Publication date: September 13, 2001Applicant: ASAHI GLASS COMPANY LTD.Inventors: Genichirou Enna, Hiroki Fukuda, Yoshihiro Ohtsuka
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Publication number: 20010016624Abstract: A heterobifunctional poly(ethylene glycol) is provided having a hydrolytically degradable linkage, a first terminus comprising an acrylate group, and a second terminus comprising a target such as a protein or pharmaceutical agent or a reactive moiety capable of coupling to a target. Hydrogels can be prepared. The hydrogels can be used as a carrier for a protein or a pharmaceutical agent that can be readily released in a controlled fashion.Type: ApplicationFiled: April 2, 2001Publication date: August 23, 2001Applicant: Debio Recherche Pharmaceutique S.A.Inventors: J. Milton Harris, Xuan Zhao
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Publication number: 20010014722Abstract: The present invention provides a novel amino-group-containing polymer (salt) and a production process therefor wherein the amino-group-containing polymer (salt) is a product by a process including the step of introducing amino groups into a grafted polymer having a polyether skeleton, and can make good use of the reactivity or cationic property of at least primary amino groups and further, according to circumstances, secondary amino groups, and further can display various performances, such as curability useful for various uses and adsorbency onto films or fibers.Type: ApplicationFiled: February 8, 2001Publication date: August 16, 2001Applicant: Nippon Shokubai Co., Ltd.Inventors: Ichimoto Akasaki, Masahito Takagi, Takuya Saeki, Koichiro Saeki
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Patent number: 6271335Abstract: A method of making a thermally-removable encapsulant by heating a mixture of at least one bis(maleimide) compound and at least one monomeric tris(furan) or tetrakis(furan) compound at temperatures from above room temperature to less than approximately 90° C. to form a gel and cooling the gel to form the thermally-removable encapsulant. The encapsulant can be easily removed within approximately an hour by heating to temperatures greater than approximately 90° C., preferably in a polar solvent. The encapsulant can be used in protecting electronic components that may require subsequent removal of the encapsulant for component repair, modification or quality control.Type: GrantFiled: January 18, 2000Date of Patent: August 7, 2001Assignee: Sandia CorporationInventors: James H. Small, Douglas A. Loy, David R. Wheeler, James R. McElhanon, Randall S. Saunders
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Patent number: 6262127Abstract: This invention provides pharmaceutical compositions comprising polymeric matrices, especially those comprising IL-6 as an active ingredient. Specific novel poly(ethylene carbomate) polymers are also provided for more general use as matrix materials in sustained release compositions containing pharmacologically active compounds, as are methods of using of IL-6 for treatment of conditions mediated by IL-1 and/or TNF&agr;, e.g., certain autoimmune and inflammatory conditions, as well as septic shock.Type: GrantFiled: July 20, 1999Date of Patent: July 17, 2001Assignee: Novartis AGInventors: Murat Acemoglu, Siegfried Bantle, David Bodmer, Salvatore Cammisuli, Peter Hiestand, Fritz Nimmerfall, Georg Stoll
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Patent number: 6245827Abstract: This invention is of a resin composition including an additive of one or more organic peroxide thermal imitators to cationic photoinitiators, that are sensitized with alpha-hydroxy-ketones, which composition provides a self-propagating thermal curing reaction first activated by a short duration of surface ultraviolet radiation. The thermal reaction is non-directional, thus eliminating the line of sight limitation of current radiation curing processes. Complete curing can be achieved of the composition in a very short time; often after only a few minutes or less. The activation period can be provided by only a few seconds of ultraviolet light using a wide variety of commercial ultraviolet light sources.Type: GrantFiled: October 12, 1999Date of Patent: June 12, 2001Assignee: Elementis Specialties, Inc.Inventor: Scott Gregory
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Patent number: 6225439Abstract: A composition for a resin which comprises (a) a compound having one or more structures represented by the following formula in one molecule: wherein R1 represents a hydrocarbon group having 1 to 10 carbon atoms, R2, R3 and R4 each represents a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, X represents S or O, and an average number of S represented by X is about 50% or more of a total number of S and O constituting the three-member ring, and (b) a compound having one or more active hydrogen atoms in one molecule and which is an alcohol having an acryloyloxy group or a methacryloyloxy group, or a mercaptoalcohol.Type: GrantFiled: November 23, 1998Date of Patent: May 1, 2001Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Akikazu Amagai, Masanori Shimuta, Katsuyuki Mizuno, Motoharu Takeuchi
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Patent number: 6221976Abstract: A shelf-stable water-borne dispersion or solution that cures rapidly and at low temperatures when coated onto a substrate can be prepared with an aqueous-based solution or stable aqueous dispersion of a polymer having a backbone containing pendant silanol groups which are sufficiently neutralized to inhibit silanol condensation.Type: GrantFiled: January 25, 1999Date of Patent: April 24, 2001Assignee: The Dow Chemical CompanyInventors: Mladen Ladika, Gene D. Rose
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Patent number: 6214158Abstract: A curable, high temperature, carbonaceous, cement paste composition comprising a catalyst; a carbon filler present in an amount of about 20 to about 60 wt. %; a polymerizable monomeric system present in an amount of about 7 to about 30 wt. % comprising a dialkyl ester of an aromatic tetracarboxylic acid, an aromatic diamine, and a monoalkyl ester of an acid selected from the group consisting of 5-norbornene-2,3-dicarboxylic acid and phthalic acid; and a furan solvent present in an amount of about 20 to about 60 wt. %. The most preferred embodiment comprising a monomeric system comprising a dimethyl ester of 3,3′,4,4′-benzophenonetetracarboxylic acid, 2,2′-bis (4-[4-aminophenoxyl]phenyl)propane and a monomethyl ester of 5-norbornene-2,3-dicarboxylic acid with furfuryl alcohol and a catalytic solution of about 50% ZnCl2, has a glass transition temperature of about 280° C. after curing by heating at about 2° C./minute to about 240° C. and holding for about 2 hours.Type: GrantFiled: February 26, 1999Date of Patent: April 10, 2001Assignee: UCAR Carbon Company Inc.Inventors: Charles Chi-Chieh Chiu, Irwin Charles Lewis, Richard Thomas Lewis
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Patent number: 6211330Abstract: Improved double metal cyanide (DMC) catalysts are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, from about 0.1 to about 10 wt. % of an organophosphine oxide, and optionally, a polyether. Compared with other DMC catalysts prepared in the absence of the organophosphine oxide, those of the invention have higher activity for epoxide polymerization, and they give polyols having reduced unsaturation even at high epoxide polymerization temperatures.Type: GrantFiled: July 30, 1997Date of Patent: April 3, 2001Assignee: Bayer Antwerp N.V.Inventor: Bi Le-Khac
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Patent number: 6211261Abstract: A thermosetting pressure-sensitive adhesive which can obtain the high rate of polymerization without a decrease in the molecular weight by photopolymerization, thereby show the tackiness at ordinary temperatures to permit easy temporary adhesion to an adherend, can be cured by heating for a short period of time to exhibit strong adhesive strength and high heat resistance, and is excellent in storage stability before heating, comprising a photopolymerized product of a composition comprising a) 100 parts by weight of a monomer mixture comprising 70% to 99% by weight of an alkyl (meth)acrylate whose alkyl group has 2 to 14 carbon atoms on average, and 1% to 30% by weight of a monoethylenic unsaturated acid copolymerizable therewith based on the monomer mixture, b) 0.Type: GrantFiled: September 21, 1999Date of Patent: April 3, 2001Assignee: Nitto Denko CorporationInventors: Kazuhito Hosokawa, Masahiro Oura
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Patent number: 6211304Abstract: Novel mordants based upon a poly(alkylene oxide) backbone and either pendant phosphonium or quaternized-nitrogen compounds are disclosed. The mordants find use in stopping or controlling ink-bleeding in ink-jet receptors and photographic films.Type: GrantFiled: August 30, 1995Date of Patent: April 3, 2001Assignee: 3M Innovative Properties CompanyInventor: Omar Farooq
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Patent number: 6197979Abstract: In a process for preparing polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers having a low color number by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer over a heterogeneous catalyst, the polymerization is carried out in the presence of hydrogen.Type: GrantFiled: February 10, 2000Date of Patent: March 6, 2001Assignee: BASF AktiengesellschaftInventors: Rainer Becker, Karsten Eller, Heinz Rütter, Michael Hesse
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Patent number: 6143233Abstract: A polymer which can be crosslinked by high-energy radiation and contains from 0.1 to 50% by weight, based on the polymer, of 2,3-dihydrofuran groups or derivatives thereof, each calculated as 2,3-dihydrofuran.Type: GrantFiled: September 22, 1998Date of Patent: November 7, 2000Assignee: BASF AktiengesellschaftInventors: Wolfgang Reich, Reinhold Schwalm, Erich Beck, Lukas Haussling, Oskar Nuyken, Roman-Benedikt Raether
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Patent number: 6133409Abstract: This invention is directed to a process for the solid phase synthesis of aldehyde, ketone, oxime, amine, hydroxamic acid and .alpha.,.beta.-unsaturated carboxylic acid and aldehyde compounds and to polymeric hydroxylamine resin compounds useful therefor.Type: GrantFiled: June 24, 1998Date of Patent: October 17, 2000Assignee: Aventis Pharmaceuticals Products Inc.Inventors: Joseph M. Salvino, George C. Morton, Helen J. Mason, Richard F. Labaudiniere
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Patent number: 6133410Abstract: Linear, alternating .alpha.-olefin-CO copolymers are obtainable by polymerization of a monomer mixture comprisinga) carbon monoxide,b) 1-alkenes which are functionalized by a covalently bonded crown ether unit or cryptand unit A containing at least 5 heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur and/or selenium in the polyheteroatom framework, and, if desired,c) C.sub.2 -C.sub.24 -1-alkenes.Type: GrantFiled: September 29, 1999Date of Patent: October 17, 2000Assignee: BASF AktiengesellschaftInventors: Michael Geprags, Joachim Queisser, Bernhard Rieger, Martin Moller, Adnan S. Abu-Surrah, Harm-Anton Klok, Peter Eibeck, Markus Schmid
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Patent number: 6124424Abstract: A transparent optical material containing at least one selenium atom, a plastic lens comprising the transparent optical material, and methods for preparing them. In addition, there are also disclosed novel selenium-containing compounds represented by the following formulae (1), (2) and (4) which are useful for the transparent optical material and the plastic lens: ##STR1## wherein symbols are as defined in the specification.Type: GrantFiled: October 19, 1998Date of Patent: September 26, 2000Assignee: Mitsui Chemicals, Inc.Inventors: Koju Okazaki, Mamoru Tanaka, Shiro Honma, Hiroyuki Morijiri, Yoshinobu Kanemura, Masahiko Kusumoto
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Patent number: 6107362Abstract: A mixture of acrylic or methacrylic compounds, containing from 40 to 95% by weight, based on the total amount of the acrylic or methacrylic compounds, of epoxide (meth)acrylates, is obtainable by a process comprising the process stepsa) esterification of hydroxy compounds with acrylic acid or methacrylic acid,b) if required, subsequent addition of further acrylic acid or methacrylic acid andc) subsequent reaction of the excess acrylic or methacrylic acid with epoxides in the presence of the esterification product of a).Type: GrantFiled: November 2, 1998Date of Patent: August 22, 2000Assignee: BASF AktiengesellschaftInventors: Rainer Koniger, Wolfgang Paulus, Wolfgang Reich, Erich Beck, Lothar Wolf
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Patent number: 6100372Abstract: A polymer composition, which is useful as a surfactant, formed by the reaction of an alkylene oxide (such as ethylene oxide), carbon dioxide, and a monocarboxylic acid chain terminator, such as one containing a fatty alkyl group.Type: GrantFiled: August 20, 1998Date of Patent: August 8, 2000Assignee: Akzo Nobel NVInventors: Ki-Soo Kim, Sophia Dashevsky, Claude B. Peterson
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Patent number: 6090453Abstract: Disclosed is a process which comprises the steps of (a) providing a polymer containing at least some monomer repeat units with halomethyl group substituents which enable crosslinking or chain extension of the polymer upon exposure to a radiation source which is electron beam radiation, x-ray radiation, or deep ultraviolet radiation, said polymer being of the formula ##STR1## wherein x is an integer of 0 or 1, A is one of several groups, as specified in the claims, and B is one of several groups, as specified in the claims or mixtures thereof, and n is an integer representing the number of repeating monomer units, and (b) causing the polymer to become crosslinked or chain extended through the photosensitivity-imparting groups. Also disclosed is a process for preparing a thermal ink jet printhead by the aforementioned curing process.Type: GrantFiled: September 30, 1998Date of Patent: July 18, 2000Assignee: Xerox CorporationInventors: Ram S. Narang, Timothy J. Fuller
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Patent number: 6077879Abstract: The present invention provides a radically polymerizable curable resin obtained by modifying an epoxy resin by reacting a phenol compound having an alcoholic hydroxyl group; and an unsaturated monobasic acid, to the epoxy resin having two or more epoxy groups in a molecule. The epoxy resin is reacted with the phenol compound and the unsaturated monobasic acid. The curable resin is subjected to polymerization curing with heat or light to form a cured product having excellent heat resistance, moisture resistance, and adhesion to substrates. The present invention also provides a curable resin composition containing the curable resin, as well as an alkaline-developable curable resin capable of forming a coating layer having excellent tack-free property, quick developability and excellent properties of cured layer.Type: GrantFiled: November 10, 1998Date of Patent: June 20, 2000Assignee: Nippon Shokubai Co., Ltd.Inventors: Nobuaki Ohtsuki, Toshio Awaji
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Patent number: 6072021Abstract: This invention concerns a process for the copolymerization of formaldehyde with cyclic ethers, the process comprising combining in a hydrocarbon solvent a cyclic ether, a cationic initiator comprising an anion formed from tetraphenyl borate derivatives, and mixtures thereof, and a cation, and anhydrous formaldehyde. These initiators provide high activity, high cyclic ether incorporation rates, and stability while minimizing the production of by-products.Type: GrantFiled: October 21, 1998Date of Patent: June 6, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Douglas John Adelman, Richard Beckerbauer
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Patent number: 6057420Abstract: A process for lowering the amount of epichlorohydrin and related hydrolysis compounds contained in paper strength enhancing resins by treating an aqueous solution of the resin with an adsorbent.Type: GrantFiled: January 19, 1994Date of Patent: May 2, 2000Assignee: E. I. du Pont de Nemours and CompanyInventor: Ronald Lee Amey
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Patent number: 6048952Abstract: Novel mixtures of perfluoroalkyl halides and derivatives thereof are described. These mixtures contain some compounds with a straight perfluoroalkyl group and some with a branched perfluoroalkyl group. Methods of preparation and use are also described.Type: GrantFiled: February 4, 1997Date of Patent: April 11, 2000Assignee: 3M Innovative Properties CompanyInventors: Frederick E. Behr, Rudolf J. Dams, Johan E. DeWitte, Donald F. Hagen
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Patent number: 6043338Abstract: In a process for the preparation of copolymers of tetrahydrofuran and but-2-yne-1,4-diol by catalytic polymerization of tetrahydrofuran, the polymerization is carried out over a heterogeneous acidic catalyst which has acid centers of acidity pK.sub.a <+2 in a concentration of at least 0.005 mmol/g of catalyst, in the presence of but-2-yne-1,4-diol. In particular, for the preparation of polyoxytetramethylene glycol, the copolymers are reacted in the presence of hydrogen over a hydrogenation catalyst.Type: GrantFiled: January 22, 1998Date of Patent: March 28, 2000Assignee: BASF AktiengesellschaftInventors: Christoph Sigwart, Rolf Fischer, Karsten Eller, Rainer Becker, Klaus-Dieter Plitzko, Gerd Heilen
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Patent number: 6037441Abstract: A durability enhancing agent which comprises an ultraviolet light absorbing compound or hindered amine light stabilizer, or mixture thereof, bonded to a non-acrylic monomeric, oligomeric, or polymeric component, said agent comprising more than one carbamate functional group, group convertible to a carbamate group, or a group that crosslinks with a carbamate functional group. Also included is a coating composition including the durability enhancing agent for improved resistance to environmental etch.Type: GrantFiled: December 18, 1996Date of Patent: March 14, 2000Assignee: BASF CorporationInventors: Walter H. Ohrbom, John E. Boisseau, Donald L. St. Aubin, John W. Rehfuss
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Patent number: 6034208Abstract: Unique, well defined macromonomers containing hydroxyl-functionality, unsaturation-functionality, and polyoxyalkylene segments are prepared by oxyalkylating an unsaturated initiator molecule having at least one oxyalkylatable hydrogen in the presence of an effective amount of a double metal cyanide complex catalyst, optionally, when necessary, in the presence of a free radical polymerization inhibitor. The resulting unsaturated macromonomers are eminently suitable for such uses as copolymerization with ethylenically unsaturated monomers containing carboxylic acid-based groups such as acrylic acid to form effective superplasticizers and water reducers for cement and concrete applications.Type: GrantFiled: May 8, 1998Date of Patent: March 7, 2000Assignee: Arco Chemical Technology, L.P.Inventors: Kenneth G. McDaniel, Edward T. Shawl, Xinhau Zhou
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Patent number: 6013596Abstract: Double metal cyanide (DMC) catalysts and methods for making them are disclosed. The catalysts comprise a DMC compound, an organic complexing agent, and optionally, a functionalized polymer. The key component is the complexing agent, which comprises a C.sub.3 -C.sub.5 aliphatic alcohol a cyclic, bidentate compound selected from lactams and lactones. Polyether polyols made from the catalysts contain reduced levels of high-molecular-weight (Mn greater than 400,000) components and consistently perform better in urethane applications such as flexible and molded foams.Type: GrantFiled: May 18, 1998Date of Patent: January 11, 2000Assignee: ARCO Chemical Technology, L.P.Inventors: Bi Le-Khac, Wei Wang, Mahmoud K. Faraj
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Patent number: 5962546Abstract: Compositions containing conductivity enhancers, which are capable of being coated onto a substrate by means of electrostatic assistance. The compositions comprise one or more cationically polymerizable monomer(s), one or more cationic initiator(s), and one or more non-volatile conductivity enhancer(s) having anionic and cationic portions which are soluble in the monomer(s) and which do not interfere with cationic polymerization wherein the anionic portion is a non-coordinating carbon-containing anion. The compositions may further comprise one or more dissociation enhancing agent(s), oligomer(s) or polymer(s), preferably co-reactive, free-radically curable monomer(s), free-radical generating initiator(s), leveling agents, and other additives or adjuvants to impart specific properties to the polymerized composition.Type: GrantFiled: May 1, 1997Date of Patent: October 5, 1999Assignee: 3M Innovative Properties CompanyInventors: Albert I. Everaerts, William M. Lamanna, Albert E. Seaver, George V. D. Tiers
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Patent number: 5962547Abstract: Radiation- or thermally-initiated cationically-curable styrene oxides of the structure ##STR1## are suitable for use in cationically curable adhesive and coating compositions.Type: GrantFiled: May 14, 1998Date of Patent: October 5, 1999Inventors: Nikola A. Nikolic, Rose Ann Schultz
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Patent number: 5942595Abstract: Disclosed is a process for copolymerization of formaldehyde with cyclic ethers in the presence of organic nitro compounds. The process enhances the selectivity for the cyclic copolymer.Type: GrantFiled: July 13, 1998Date of Patent: August 24, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Douglas John Adelman, Richard Beckerbauer
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Patent number: 5939590Abstract: Tetrahydrofuran/but-2-yne-1,4-diol copolymers containing C--C triple bonds and having an average molecular weight M.sub.n of from 500 to 3500 Dalton and a content of from 0.5 to 3 mol of triple bonds/mol of copolymer and blends of these copolymers with polytetrahydrofuran having an average molecular weight M.sub.n of from 500 to 3500 Dalton, processes for their preparation and their use.Type: GrantFiled: August 26, 1997Date of Patent: August 17, 1999Assignee: Basf AktiengesellschaftInventors: Christoph Sigwart, Rolf Fischer, Rainer Becker, Klaus-Dieter Plitzko, Gerd Heilen, Christof Palm, Peter Groll
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Patent number: 5902643Abstract: Disclosed is a multilayer packaging material which is suitable for use as a container for malt beverages and which is tinted so as to block at least 90% of light with wavelengths of electromagnetic radiation ranging from 300 nm to 500 nm. The tinted multilayer packaging materials of the present invention includes: (a) at least one layer of a carbon dioxide (CO.sub.2)-permeable polymeric packaging material, and (b) at least one layer of a CO.sub.2 -treated gas barrier coating, which has an oxygen permeability constant not more than 0.05 cubic centimeter-mil/100 square inches/atmosphere/day. The CO.sub.2 -permeable packaging material can be any polymeric material through which CO.sub.2 can pass and which can be used as a packaging material for food or beverages. The gas barrier coating has an oxygen permeability constant, before CO.sub.2 treatment, of less than 0.3. This gas barrier coating includes the reaction product of a polyamine (A) and a polyepoxide (B).Type: GrantFiled: November 24, 1997Date of Patent: May 11, 1999Assignee: PPG Industries Inc.Inventors: Leland H. Carlblom, Jerome A. Seiner, Ken W. Niederst
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Patent number: 5859211Abstract: A conjugated polymer comprising repeating units of the formula (I), ##STR1## where the symbols and indices have the following meanings: .PSI. is an element of the 4th main group of the Periodic Table with the exception of carbon;D, E, F, G are identical or different and are --CR.sup.1 R.sup.2 --, --O--, --S--, --NR.sup.3 -- or a chemical bond;U is --CR.sup.4 .dbd.CR.sup.5 -- or a chemical bond;V is as defined for U or is --CR.sup.1 R.sup.2 --, --O--, --S--, --NR.sup.3 --, --SiR.sup.1 R.sup.2 --, --SO.sub.2 --, --O--, --CO--;A are identical or different and are H, a C.sub.1 --C.sub.20 -hydrocarbon radical which can also contain heteroatoms;T is --O--, --S--, --NR.sup.3 --, --CR.sup.1 R.sup.2 --, --CH.dbd.N--, --CA.dbd.CA--, --CH.dbd.CA--, --CH.dbd.CF-- or --CF.dbd.CF--;K, Q are identical or different hydrocarbon radicals which can contain heteroatoms and have conjugated electron systems;M, L are H or a straight-chain or branched alkyl group having from 1 to 22 carbon atoms, Br, Cl, F, CN, NO.sub.2 or CF.sub.Type: GrantFiled: April 17, 1997Date of Patent: January 12, 1999Assignee: Hoechst AktiengesellschaftInventors: Willi Kreuder, Donald Lupo, Josef Salbeck, Hermann Schenk, Thomas Stehlin
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Patent number: 5854386Abstract: Unique, well defined polyethers containing both hydroxyl-functionality and unsaturation-functionality are prepared by oxyalkylating an unsaturated monomer having at least one oxyalkylatable hydrogen in the presence of an effective amount of a double metal cyanide complex catalyst, optionally, when necessary, in the presence of a free radical polymerization inhibitor. The resulting polyethers are eminently suitable for such uses as polymer polyol stabilizers or stabilizer precursors, and both in situ and ex situ impact modifiers for thermoplastics.Type: GrantFiled: August 25, 1997Date of Patent: December 29, 1998Assignee: ARCO Chemical Technology, L.P.Inventors: Jianzhong Shen, Kenneth G. McDaniel, John E. Hayes, Uli B. Holeschovsky, Harry R. Hinney
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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: 5763636Abstract: Polymers containing spiro atoms which can be used as electroluminescence materials, suitable for use in ligerting or display devices, and which improve the property profile of these devices. Specifically, a conjugated polymer comprising structural units of the formula (I), ##STR1## where the symbols and indices have the following meanings: D, E, F.sup.1, G are identical or different, and are --CR.sup.1 R.sup.1 --, --O--, --S--, --NR.sup.3 -- or a chemical bond;Ar.sup.1, Ar.sup.2 are carbocycles or heterocycles;U.sup.1, V.sup.1 are identical or different, and are --CR.sup.5.dbd.CR.sup.6 --, --CR.sup.7 R.sup.8 --, --CR.sup.9 R.sup.10 --CR.sup.11 R.sup.12 --, --NR.sup.13 --, --SiR.sup.14 R.sup.15 --, --O--, --S--, --SO--, --SO.sub.2 --, --CO-- or a chemical bond;Ar.sup.5, Ar.sup.6, X, Y.sup.1 are identical or different, and are cyclic or acyclic, conjugated hydrocarbons and X and/or y.sup.1 can also be H or R.sup.Type: GrantFiled: March 4, 1997Date of Patent: June 9, 1998Assignee: Hoechst AktiengesellschaftInventors: Willi Kreuder, Hubert Spreitzer
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Patent number: 5760142Abstract: Epoxide-amine dendrimers synthesized by a repetitive and step-wise addition reaction of epoxides comprising functional moieties which are available for conversion into amino groups followed by a reaction of these groups to primary amino moieties. The amino terminated dendrimers are reacted with (2,3-epoxypropoxy) methacrylate, a monoepoxide and/or a monoisocyante. The methacrylate terminated dendrimers are polymerizable using redox initiators and/or photoinitiators. The resulting dendrimers show a very low volume shrinkage from that of the starting materials, on the order of less than about 5 percent by volume.Type: GrantFiled: December 4, 1996Date of Patent: June 2, 1998Assignee: Dentsply DeTrey G.m.b.H.Inventor: Joachim E. Klee
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Patent number: 5760163Abstract: Branched polyamides are prepared by mixingA) from 10 to 99.7% by weight of a melt of a polyamide prepolymer having a viscosity number of from 40 to 90 ml/g withB) from 0.3 to 6% by weight of a polybasic carboxylic acid, where the number n of the free carboxylic acid groups is 3.ltoreq.n.ltoreq.10, and alsoC) from 0 to 80% by weight of further additives and processing aids,where the percentages by weight of the components A) to C) add up to 100%, and subsequently further condensing the mixture in the solid phase.Type: GrantFiled: November 14, 1996Date of Patent: June 2, 1998Assignee: BASF AktiengesellschaftInventors: Herbert Fisch, Gunter Pipper, Jens Rieger, Martin Laun, Volker Warzelhan
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Patent number: 5753783Abstract: Disclosed is a process which comprises reacting a polymer of the general formula ##STR1## wherein x is an integer of 0 or 1, A is one of several specified groups, such as ##STR2## B is one of several specified groups, such as ##STR3## or mixtures thereof, and n is an integer representing the number of repeating monomer units, with an acetyl halide and dimethoxymethane in the presence of a halogen-containing Lewis acid catalyst and methanol, thereby forming a haloalkylated polymer. In a specific embodiment, the haloalkylated polymer is then reacted further to replace at least some of the haloalkyl groups with photosensitivity-imparting groups. Also disclosed is a process for preparing a thermal ink jet printhead with the aforementioned polymer.Type: GrantFiled: August 28, 1997Date of Patent: May 19, 1998Assignee: Xerox CorporationInventors: Timothy J. Fuller, Ram S. Narang, Thomas W. Smith, David J. Luca, Raymond K. Crandall
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Patent number: 5731407Abstract: Improved double metal cyanide catalysts are disclosed. The substantially amorphous catalysts of the invention are more active for polymerizing epoxides than conventional DMC catalysts, which have a substantial crystalline component. Polyol products made with the catalysts are unusually clear, have exceptionally low unsaturations, and contain no detectable amount of low molecular weight polyol impurities. A method of making the improved DMC catalysts, which involves intimately combining the reactants, is also disclosed.Type: GrantFiled: June 7, 1995Date of Patent: March 24, 1998Assignee: Arco Chemical Technology, L.P.Inventor: Bi Le-Khac
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Patent number: 5728439Abstract: Disclosed is a multilayer packaging material which is suitable for use as a container for malt beverages and which is tinted so as to block at least 90% of light with wavelengths of electromagnetic radiation ranging from 300 nm to 500 nm. The tinted multilayer packaging materials of the present invention includes: (a) at least one layer of a carbon dioxide (CO.sub.2)-permeable polymeric packaging material, and (b) at least one layer of a CO.sub.2 -treated gas barrier coating, which has an oxygen permeability constant not more than 0.05 cubic centimeter-mil/100 square inches/atmosphere/day. The CO.sub.2 -permeable packaging material can be any polymeric material through which CO.sub.2 can pass and which can be used as a packaging material for food or beverages. The gas barrier coating has an oxygen permeability constant, before CO.sub.2 treatment, of less than 0.3. This gas barrier coating includes the reaction product of a polyamine (A) and a polyepoxide (B).Type: GrantFiled: December 4, 1996Date of Patent: March 17, 1998Assignee: PPG Industries, Inc.Inventors: Leland H. Carlblom, Jerome A. Seiner, Ken W. Niederst
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Patent number: 5726216Abstract: Mixtures of epoxy resins with cationic initiators are curable under high energy ionizing radiation such as electron beam radiation, X-ray radiation, and gamma radiation. The composition of this process consists of an epoxy resin, a cationic initiator such as a diaryliodonium or triarylsulfonium salt of specific anions, and a toughening agent such as a thermoplastic, hydroxy-containing thermoplastic oligomer, epoxy-containing thermoplastic oligomer, reactive flexibilizer, rubber, elastomer, or mixture thereof. Cured compositions have high glass transition temperatures, good mechanical properties, and good toughness. These properties are comparable to those of similar thermally cured epoxies.Type: GrantFiled: July 8, 1996Date of Patent: March 10, 1998Assignee: Lockheed Martin Energy Systems, Inc.Inventors: Christopher J. Janke, George F. Dorsey, Stephen J. Havens, Vincent J. Lopata
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Patent number: 5723562Abstract: 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: December 5, 1996Date of Patent: March 3, 1998Assignee: Elf Atochem North America, Inc.Inventor: Daryl L. Stein
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Patent number: 5710210Abstract: 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: 5684115Abstract: A processes for producing a (co)polycarbonate having a low terminal hydroxyl group concentration and being excellent in heat resistance and hue, which comprises melt-polycondensing a dihydroxy compound with a carbonic diester in the presence of a catalyst for transesterification selected from the group consisting of a nitrogen-containing basic compound, an alkali metal borate and an alkaline earth metal borate and in the presence of a specific ester compound.Type: GrantFiled: June 1, 1995Date of Patent: November 4, 1997Assignee: Daicel Chemical Industries, Ltd.Inventors: Tatsuya Kanno, Yutaka Hukuda, Yasuhiro Oshino
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Patent number: 5681659Abstract: A fluorescent complex polymer with fluorescent organometallic complexes connected by organic chain spacers is utilized in the fabrication of light emitting devices on a substantially transparent planar substrate by depositing a first conductive layer having p-type conductivity on the planar surface of the substrate, depositing a layer of a hole transporting and electron blocking material on the first conductive layer, depositing a layer of the fluorescent complex polymer on the layer of hole transporting and electron blocking material as an electron transporting emissive layer and depositing a second conductive layer having n-type conductivity on the layer of fluorescent complex polymer.Type: GrantFiled: October 13, 1995Date of Patent: October 28, 1997Assignee: MotorolaInventors: Song Q. Shi, Franky So
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Patent number: 5679764Abstract: Oligomeric polyoxyalkylene polyethers are prepared by oxyalkylating a low molecular weight hydroxyl-functional starter molecule with one or more alkylene oxides in the presence of a solid, heterogeneous magnesium oxide catalyst. The catalyst is readily and rapidly removed by simple filtration to yield a polyether with minimal metal ion content suitable for use directly or as a starter molecule for further double metal cyanide complex catalyzed oxyalkylation.Type: GrantFiled: November 6, 1995Date of Patent: October 21, 1997Assignee: ARCO Chemical Technology, L.P.Inventor: Jose F. Pazos