Ethylenically Unsaturated Carboxylic Acid Or Derivative Of An Ethylenically Unsaturated Carboxylic Acid Patents (Class 528/306)
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Patent number: 6916547Abstract: Novel multifunctional unsaturated polyester polyols, UV-curable top coat formulations including these polyols, and a one-step process for preparing these polyols, are disclosed. Surface coverings and surface covering components including these top coat formulations are also disclosed. The polyols are generally formed by the ring opening polymerization of a lactone with a compound of the formula (R1)aR(OH)b, where a+b>2. R1 is a double bond-containing moiety such as allyl, vinyl, vinylidene, vinyl ether, acrylate, and the like. R is generally an alkyl, aryl, aralkyl, alkaryl, ether or ester group, including substituted versions thereof. R can be a polymer, including polymers with a plurality of functional groups. Examples of lactone groups which can be used include caprolactone, lactide and glycolide.Type: GrantFiled: February 1, 2002Date of Patent: July 12, 2005Assignee: AWI Licensing CompanyInventors: Dong Tian, Jeff S. Ross
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Patent number: 6902820Abstract: Coating compositions comprising: A) least one hydroxy-functional polyester with at least two hydroxyl groups per molecule, wherein at least one of which hydroxyl groups is a tertiary hydroxyl group, and the polyester has a number average molecular weight Mw of 200 to 5000, and contains as a structural element 10-90 wt-%, relative to the total quantity of polyester, of at least one acid ester group comprising a tertiary hydroxyl group and of the following general formula I ?wherein R1 is a single bond or a C1-C6 alkyl group, R2 and R3 mutually independently mean a C1-C4 alkyl group, B) optionally, at least one additional hydroxy-functional binder other than A) and C) at least one cross-linking agent which is capable of entering into a cross-linking reaction with the OH-groups of components A) and B.Type: GrantFiled: September 25, 2003Date of Patent: June 7, 2005Assignee: E.I. du Pont de Nemours and CompanyInventors: Jos Huybrechts, Ann Vaes, Lieve Bastin, Leen Tanghe
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Patent number: 6884778Abstract: A new oligomer based on alternating fumaric acid and poly(ethylene glycol) (PEG) units is provided. The oligo(PEG fumarate) (OPF) may be functionalized by modification with a biocompatible organic group. Further, the OPF may be cross-linked using radical polymerization in the presence of either a chemical or photo initiator. A cross-linked OPF gel has a swelling behavior that is tunable dependent on the molecular weight of PEG. A cross-linkable PEG macromer, as exemplified by oligo(PEG fumarate), has unsaturated double bonds, for example in the fumaryl groups, along its macromolecular chain that allows for the preparation of hydrogels with tailored structure and properties.Type: GrantFiled: April 30, 2001Date of Patent: April 26, 2005Assignee: William Marsh Rice UniversityInventors: Seongbong Jo, Antonios G. Mikos
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Patent number: 6881785Abstract: An aqueous dispersion based on an amorphous unsaturated polyester resin obtained by polycondensing a mixture of Dicidol isomers and one or more saturated and/or unsaturated dicarboxylic acids.Type: GrantFiled: December 22, 2003Date of Patent: April 19, 2005Assignee: Degussa AGInventors: Patrick Glöckner, Martina Ortelt, Werner Andrejewski, Alessandro Cerri, Lutz Mindach, Stephan Kohlstruk
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Patent number: 6875514Abstract: A coating composition comprising a film forming binder of a. an acrylic polymer having pendant groups that are reactive with isocyanate moieties and having a glass transition temperature (Tg) of 10 to 80°C.; b. a polytrimethylene ether diol having a Mn (number average molecular weight) of 500 to 5,000; and c. an organic polyisocyanate crosslinking agent; wherein the coating composition contains pigments and cures at ambient temperatures or elevated temperatures and forms a coating that is sandable and when used in combination with a top coat, for example, a colored base coat and clear coat or a pigmented mono-coat forms a chip resistant multi-layer coating useful for refinishing or repairing automotive and truck bodies and parts.Type: GrantFiled: March 21, 2003Date of Patent: April 5, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Patricia Mary Ellen Sormani, Hari Babu Sunkara, James William O'Neil, Joseph V. Kurian
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Patent number: 6872799Abstract: The present invention is directed to synthetic, biodegradable, biocompatible polymers that are the reaction product of an ?,?-unsaturated polybasic acid or derivative thereof and a monoglyceride, and which further contain pended thereto a functional agent, and to medical devices and compositions containing such polymers.Type: GrantFiled: December 18, 2002Date of Patent: March 29, 2005Assignee: Ethicon, Inc.Inventor: Aruna Nathan
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Patent number: 6866860Abstract: The present invention is directed to medical devices or pharmaceutical composition, each containing a synthetic, biodegradable, biocompatible polymer that is the reaction product of a polybasic acid or derivative thereof, a monoglyceride, and a cationic polyol.Type: GrantFiled: December 19, 2002Date of Patent: March 15, 2005Assignee: Ethicon, Inc.Inventor: Aruna Nathan
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Patent number: 6858314Abstract: A brominated unsaturated polyester resin containing a hydroxyl value of about 35 or less and a hydroxyl acid molar ratio of about 2:1 to about 1:4. The brominated unsaturated polyester resin is prepared from a polyfunctional carboxylic acid, a monocarboxylic acid, and a polyfunctional glycol or alcohol that contains bromine under polyester esterification reaction conditions. The brominated unsaturated polyester resin can be incorporated into a resin composition that also contains vinyl monomer. The invention is also directed to a method of making a brominated unsaturated polyester resin, and to castings, coatings, and laminate panels containing cured brominated unsaturated polyester resin compositions of the invention.Type: GrantFiled: October 22, 2002Date of Patent: February 22, 2005Assignee: Ashland, Inc.Inventor: Danny George Hartinger
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Patent number: 6828411Abstract: A one-step polymerization process, leading directly to highly branched polyesters with unsaturated, either acrylate or sorbate end groups is described, which is based on the Diels-Alder reaction of polyfunctional sorbic esters with acrylates in defined ratios. A preferred embodiment of the invention is the Diels-Alder polymerization in aqueous emulsion.Type: GrantFiled: February 21, 2003Date of Patent: December 7, 2004Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Rainer Bruno Frings, Gerwald F. Grahe, Ou Shibata
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Patent number: 6825289Abstract: The present invention is to provide a production method of chemical reactive substances with stable quality by which solidification, gel formation, and the resulting blockade within material injection nozzles are prevented, and contamination of a reaction system with the gelled matter is prevented, as well as occurrence of problems on a production process due to the gelled matter is suppressed, when the chemical reactive substances are produced by injecting the liquid materials containing reactive substances having unsaturated double bonds into the reaction vessel through the material injection nozzles of the reaction vessel. The present invention is a production method of a chemical reactive substance which comprises injecting a liquid material containing a reactive substance having an unsaturated double bond into a reaction vessel through a material injection nozzle of said reaction vessel and causing a reaction at a reaction temperature of not less than 50° C.Type: GrantFiled: March 21, 2003Date of Patent: November 30, 2004Assignee: Nippon Shokubai Co., Ltd.Inventors: Masaya Yamamoto, Toru Uno, Yoshiyuki Onda, Koichiro Nagare, Minoru Miyagawa
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Patent number: 6818293Abstract: Disclosed are fibers and films prepared from polyesters of a dicarboxylic acid, preferably terephthalic acid, and a diol selected from 1,3-cyclohexanedimethanol, 1,4-cyclohexanedimethanol, or 1,3-propanediol. The fibers and films contain a multifunctional epoxide additive and, optionally, an antioxidant, and show an increased dry heat stability when exposed to elevated temperatures in the presence of air while preserving excellent hydrolytic stability. Also disclosed is a process for stabilizing polyester fibers by melt blending a polyester and epoxide additive and melt spinning. The fibers and films are particularly useful in applications requiring elevated temperatures.Type: GrantFiled: April 24, 2003Date of Patent: November 16, 2004Assignee: Eastman Chemical CompanyInventors: Gerald Timothy Keep, William Alston Haile, Mark Elliott Tincher
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Patent number: 6815080Abstract: The present invention relates to a thermoplastic resin composition comprising an ethylene-vinyl alcohol copolymer and a modified polyester type thermoplastic elastomer produced by modifying a polyester type thermoplastic elastomer with an unsaturated carboxylic acid or its derivative, and a multi-layer laminate comprising a layer A comprising the thermoplastic resin composition as defined in the above, and at least one layer B comprising a thermoplastic resin composition other than the composition as defined in the above.Type: GrantFiled: April 14, 2003Date of Patent: November 9, 2004Assignee: Mitsubishi Chemical CorporationInventor: Masatoshi Omori
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Patent number: 6808821Abstract: Disclosed is an unsaturated polyester resin composition comprising an unsaturated polyester (A) and a polymerizable unsaturated monomer (B), wherein the “shrinkage stress upon cooling” of a cured article thereof is 17 MPa or less and the ratio of the “shrinkage stress upon cooling/elastic limit” is 1 or less. The cured article has excellent gloss retention and yellowing resistance.Type: GrantFiled: August 13, 2003Date of Patent: October 26, 2004Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Yukiko Fujita, Takashi Tomiyama, Shigeru Motomiya
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Patent number: 6808788Abstract: The strength of wood composites, including hybrid composites comprising wood members bonded to reinforced polyester members, is improved by modifying the polyester components with a polyisocyanate. Wood composites adhesively bonded with polyester resins modified according to this invention are particularly desirable for use in applications where exterior exposure is contemplated.Type: GrantFiled: May 17, 2002Date of Patent: October 26, 2004Assignee: The University of MaineInventor: Ben R. Bogner
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Patent number: 6794483Abstract: The present invention provides a process for the preparation of low styrene content resins prepared by first reacting an unsaturated carboxylic acid, its corresponding anhydride or mixtures thereof with a monohydric alcohol, DCPD and water and reacting the product of the first step with a polyol and optionally an oil containing unsaturation, its corresponding fatty acid or mixtures thereof.Type: GrantFiled: October 7, 2003Date of Patent: September 21, 2004Assignee: Ashland Inc.Inventors: Roman Loza, Danny G. Hartinger
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Patent number: 6780928Abstract: A polyoxyalkylene monoalkyl ether which gives, in gel permeation chromatography, a chromatogram which satisfies a relation expressed by an equation: S1/S0≦0.Type: GrantFiled: August 22, 2003Date of Patent: August 24, 2004Assignee: NOF CorporationInventors: Akinori Itoh, Susumu Honda, Tatsuya Matsui, Yoshihiro Hayashi
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Patent number: 6759104Abstract: A photocurable composition, wherein a small amount of an alicyclic skeleton-containing mono(meth) acrylate is incorporated in a combination of an alicyclic skeleton-containing bis(meth)acrylate and a mercapto compound, a cured product obtained by the copolymerization thereof, and a process for producing the cured product.Type: GrantFiled: September 30, 2002Date of Patent: July 6, 2004Assignee: Mitsubishi Chemical CorporationInventors: Seiichiro Hayakawa, Akihiko Sakai, Akira Esaki, Yutaka Tamura
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Publication number: 20040120927Abstract: The present invention is directed to synthetic, biodegradable, biocompatible polymers that are the reaction product of an &agr;,&bgr;-unsaturated polybasic acid or derivative thereof and a monoglyceride, and which further contain pended thereto a functional agent, and to medical devices and compositions containing such polymers.Type: ApplicationFiled: December 18, 2002Publication date: June 24, 2004Inventor: Aruna Nathan
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Publication number: 20040122205Abstract: The present invention is directed to biodegradable, biocompatible polymers that are the reaction product of a polybasic acid or derivative thereof, a monoglyceride and a lactone monomer, as well as medical devices and compositions containing such polymers.Type: ApplicationFiled: December 18, 2002Publication date: June 24, 2004Inventor: Aruna Nathan
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Publication number: 20040120980Abstract: The present invention is directed to medical devices or pharmaceutical compositions, each containing a synthetic, biodegradable, biocompatible polymer that is the reaction product of a polybasic acid or derivative thereof, a monoglyceride, and a cationic polyol.Type: ApplicationFiled: December 19, 2002Publication date: June 24, 2004Inventor: Aruna Nathan
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Patent number: 6737481Abstract: A polymer comprising poly(alkylene-co-dianhydrosugar ester) dicarboxylate and its preparation by reacting an alkylene diol, terephthalic acid, and a moiety of formula 1 X-Ia-(A-I)n-Ab-X Formula 1 wherein: A is the ester residue from an anhydrosugar alcohol or dianhydrosugar alcohol, I is the ester residue from a diacid or its dialkyl esters, X is H when linked to an A residue, OH when linked to an I residue derived from a dibasic acid, and OR when linked to an I residue derived from a dialkyl ester of the dibasic acid, R is a C1-C4 straight or branched chain alkyl group, a and b are independently 0 or 1, and n is 1 to 10 is disclosed.Type: GrantFiled: June 10, 2003Date of Patent: May 18, 2004Assignee: E. I. du Pont de Nemours and CompanyInventors: Joseph V. Kurian, Yuanfeng Liang
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Patent number: 6706842Abstract: A glycol-organosilane composition and a process for producing the composition are disclosed. The composition comprises or is produced by combining (a) a glycol and (b) an organosilane. This composition is preferably substantially soluble in glycol and water. Also disclosed is a polyester composition and a process to produce the composition. The composition comprises repeat units derived from (a) a carbonyl compound or its oligomer, (b) a glycol, (c) a crosslinker, and (d) optionally a comonomer. The crosslinker can be the glycol-organosilane, a carbonyl compound containing 3 or more carboxyl groups, or an alcohol containing 3 or more hydroxyl groups. The comonomer is a dicarboxylic compound, a diol compound, or a carbonyl alcohol. The polyester composition can be used to increase the rate of polymerization, to increase pilling resistance and strength of polyester, to decrease crystallization rate and improve object forming process such as fibers and containers.Type: GrantFiled: February 6, 2003Date of Patent: March 16, 2004Inventor: Jiwen F. Duan
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Patent number: 6699945Abstract: A formaldehyde free co-binder solution formed by using a polyol to crosslink polycarboxylic acid and a polyacid monomer is provided. In forming the co-binder solution, the polyacid monomer and the polyol are mixed in any conventional device with heat and agitation for a period of time sufficient for the chemicals to react and form a reaction product. The resultant product is then admixed with polycarboxylic acid to form a co-binder solution. In a preferred embodiment, the polyacid is maleic anhydride and the polyol is triethanolamine.Type: GrantFiled: December 3, 2002Date of Patent: March 2, 2004Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Liang Chen, Kathleen M. Bullock, William E. Downey, Michael T. Pellegrin, Yadollah Delaviz, Kevin Guigley, Harry B. Cline
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Patent number: 6696521Abstract: A high performance UPR (unsaturated polyester resin) is disclosed. The UPR comprises recurring units of phthalic anhydride, 2-methyl-1,3-propanediol, and maleic anhydride. It has a fumarate/maleate ratio 85/15 or greater. It has a bi- or multi-modal molecular weight distribution. A high molecular weight portion of the UPR has a peak molecular weight (Mp) 50,000 or greater. It has a weight average molecular weight (Mw) 15,000 or greater. An ortho UPR of the invention performs as well as or better than traditional iso UPR.Type: GrantFiled: July 29, 2002Date of Patent: February 24, 2004Assignee: Arco Chemical Technology, LPInventors: Lau S. Yang, Paul Malcolm Puckett
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Patent number: 6686401Abstract: Liquid composition polymerizable, by means of radicalic polymerization, into organic glass, comprising the product obtained from the transesterification of a mixture of diallyl carbonate (A) and a phthalic ester (B), with one or more polyols (C), linear or branced, containing from two to eight carbon atoms in the molecule.Type: GrantFiled: May 16, 2002Date of Patent: February 3, 2004Assignee: Great Lakes Chemical (Europe) GmbHInventors: Fiorenzo Renzi, Andrea Bendandi, Roberto Forestieri
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Patent number: 6660810Abstract: The present invention relates to a non crosslinked block polymer. It also relates to a process for the preparation thereof and to the use thereof particularly in pharmaceutical compositions. The block polymer according to the invention contains sequences of polyethylene glycol linked to sequences of polyester and/or polycarbonate. The polyester sequences are selected in particular from polyfumarate, polymaleate and polysuccinate sequences.Type: GrantFiled: December 20, 2000Date of Patent: December 9, 2003Assignee: Debio Recherche Pharmaceutique SAInventors: Paolo Ferruti, Piero Orsolini
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Patent number: 6653435Abstract: A nonlinear crystalline polyester obtained by polycondensing monomers containing trivalent or higher polyvalent monomers selected from the group consisting of trihydric or higher polyhydric alcohols and tricarboxylic or higher polycarboxylic acid compounds in an amount of from 0.1 to 20 mol % of all monomers used for polycondensation.Type: GrantFiled: September 28, 2000Date of Patent: November 25, 2003Assignee: Kao CorporationInventors: Katsutoshi Aoki, Takashi Yamaguchi
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Patent number: 6649230Abstract: A photoactive polymer of the general formula I: in which: P is a photoactive group which can photoisomerise and/or photodimerise; B represents an aromatic or alicyclic group, or B further represents a nitrogen atom or —CR2—; A, C, D each independently of the other represents an aromatic or alicyclic group; M represents a repeating monomer unit in a homo- or copolymer; S1, S2, S3, S4, S5 represent a single covalent bond or a spacer unit; n1, n2 are each independently a positive integer up to 2 with the proviso that n1+n2≦2; R1 is a hydrogen atom, or a straight-chain or branched alkyl residue wherein R2 represents a hydrogen atom or lower alkyl. The photoactive polymers may be used as orientation layers for liquid crystals and in the construction of unstructured and structured optical elements and multi-layer systems.Type: GrantFiled: October 3, 2001Date of Patent: November 18, 2003Assignee: Rolic AGInventors: Hubert Seiberle, Guy Marck, Olivier Muller
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Patent number: 6639017Abstract: The invention relates to flame-retardant, unsaturated polyester resins made from unsaturated and saturated dicarboxylic acids and/or their anhydrides, from polyhydric alcohols, from one or more monomers and from a reactive phosphorus compound, which contain structural units of the formula IV where R1 is straight-chain or branched alkyl, cycloalkyl, aryl or alkylaryl groups having from 1 to 18 carbon atoms and R2 is methyl or hydrogen. The invention likewise relates to a process for preparing such polyester resins and to their use.Type: GrantFiled: August 28, 1997Date of Patent: October 28, 2003Assignee: Clariant GmbHInventors: Sebastian Hörold, Hans-Peter Schmitz
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Patent number: 6639046Abstract: The present invention relates to a composition comprising: a compound comprising two or more olefinically unsaturated groups comprising at least on electron-withdrawing functionality linked to a carbon atom of the unsaturated bond; a compound comprising at least two mercapto-functional groups; and a catalyst comprising at least one, optionally blocked, NH-group. The invention further relates to a method for the application of the composition and to the use of the composition as a coating composition or an adhesive.Type: GrantFiled: February 5, 2002Date of Patent: October 28, 2003Assignee: Akzo Nobel N.V.Inventor: Joseph Theodorus Maria Van Dijk
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Patent number: 6620893Abstract: This invention relates to a method of producing urethane-modified air-drying polyester dispersions and to the use thereof in coating media.Type: GrantFiled: October 12, 2001Date of Patent: September 16, 2003Assignee: Bayer AktiengesellschaftInventors: Martin Melchiors, Harald Blum, Karl-Ludwig Noble
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Patent number: 6617395Abstract: A low tack, low VOC gel coat is disclosed comprising a unsaturated polyester resin derived from maleic anhydride and up to about 30% of an organic solvent. The resin is characterized by: a viscosity of less than or equal to about 1750 cp at 70% NVM in styrene; a glass transition temperature greater than or equal to about 11° C.; and a weight average molecular weight less than or equal to about 6,050. A process for making such a gel coat is also disclosed.Type: GrantFiled: April 8, 2002Date of Patent: September 9, 2003Assignee: Cook Composites & Polymers Co.Inventors: Ming Yang Zhao, L. Scott Crump, Chih-Pin Hsu, Erwoan Pezron
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Publication number: 20030158282Abstract: The invention relates to powder coating material curable with high-energy radiation, comprising an unsaturated polyester resin (A) and a polymeric crosslinker (B) containing, based on the polymer main chain, terminal and/or pendant propenyl, butenyl and/or isoprenyl groups. The unsaturated polyester resin (A) and/or the polymeric crosslinker (B) comprise structural units of the general formula I and/or II. These novel powder coating materials are curable with high-energy radiation, preferably UV light, and are notable in particular for a very good viscosity stability during the preparation, in the melt, of the resins and the compounding of the coating materials, for outstanding coating properties, and for a low oxygen sensitivity on curing. The films resulting after the cure, moreover, exhibit outstanding elasticity.Type: ApplicationFiled: October 22, 2002Publication date: August 21, 2003Inventors: Rainer Blum, Horst Hintze-Bruening, Uwe Meisenburg
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Publication number: 20030134926Abstract: It is an object of the present invention to provide a compound having a (meth)acryloyl group that is suitably used in various applications, a process for producing such compound simply and under mild conditions, and an useful photo-curable composition and aqueous photo-curable composition comprising such compound.Type: ApplicationFiled: October 31, 2002Publication date: July 17, 2003Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Akihiko Fukada, Keiji Yurugi, Toshio Awaji, Nobuaki Otsuki
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Patent number: 6592913Abstract: A gum base comprising a crosslinked branched polyester gel prepared from the process comprising: a) providing a first pre-gel composition having carboxyl end groups; b) providing a second pre-gel composition having hydroxyl end groups; c) removing either or both of the first and second pre-gel compositions from their respective reactors; d) combining the first and second pre-gel compositions to form a mixture; and e) processing the mixture in an extruder, a continuous processor, or a container thereby providing a crosslinked branched polyester gel.Type: GrantFiled: July 30, 2002Date of Patent: July 15, 2003Assignee: Eastman Chemical CompanyInventors: Phillip M. Cook, Michael D. Hamlin, Lanny C. Treece, George G. Mayfield, Charles R. Tomlinson
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Patent number: 6555623Abstract: A process for making unsaturated polyesters from 2-methyl-1,3-propanediol (MPD) is disclosed. The process comprises reacting one equivalent of an aromatic diacid with about two equivalents of MPD to produce an ester diol and then reacting one equivalent of the ester diol with from about 1.1 to about 1.9 equivalents of maleic anhydride to produce the polyester. The polyester has a fumarate/maleate ratio of 90/10 or greater.Type: GrantFiled: March 18, 2002Date of Patent: April 29, 2003Assignee: Arco Chemical Technology, L.P.Inventors: Lau S. Yang, Paul Malcolm Puckett, Lawrence J. Karas, Diandre Armstead, Paul A. Albano
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Patent number: 6544611Abstract: The present invention improves the effectiveness of the oxygen scavenging composition and maintains an excellent balance in the color properties of the polymer. The present invention relates to an improved oxygen scavenging PET based copolymer comprising from about 10 to about 120 ppm cobalt based on the PET polymer, and from about 15 to about 150 ppm zinc based on the PET polymer. The present invention also comprises a process for preparing a PET based oxygen scavenging copolymer, comprising the steps of: a) polymerizing a PET based polymer; b) adding Zn, Co, and an oxygen scavenging compound during said polymerizing step; c) copolymerizing said oxygen scavenging compound with said PET based polymer to form a copolymer; and d) extruding said copolymer.Type: GrantFiled: August 1, 2001Date of Patent: April 8, 2003Assignee: Arteva North America S.A.R.L.Inventors: David Anthony Schiraldi, Douglas John Sekelik, Brad Lee Smith
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Patent number: 6521716Abstract: A coating, adhesive or sealant composition curable by Michael reaction comprises (A) a Michael acceptor which is a compound or polymer containing at least two activated olefinic double bonds and (B) a Michael donor which is a compound or polymer containing at least two nucleophilic groups. The double bonds of the Michael acceptor (A) are activated by two adjacent electron-withdrawing groups. Alternatively or additionally, the Michael donor (B) contains &bgr;-ketoamide, enamine carboxylate, enamine amide, pyrazolone, isoxazolone, hydantoin, rhodanine, thio-substituted unsaturated ester, thio-substituted lactone or phosphonite or phosphinite ester groups. More rapid ambient temperature curing is achieved.Type: GrantFiled: February 25, 2000Date of Patent: February 18, 2003Assignee: Akzo Nobel N.V.Inventor: Jonathan Stuart Leake
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Patent number: 6517993Abstract: A novel copolymer includes a repeating unit (A) represented by, for example, Formula (I) below, and a repeating unit (B) derived from an unsaturated carboxylic anhydride. The novel copolymer is suitable for the preparation of a photoresist composition that has satisfactory transparency, high sensitivity and definition and exhibits satisfactory DOF properties in the field of photolithography using a deep UV light source. By the use of the photoresist composition, a process forms a resist pattern with a high aspect ratio.Type: GrantFiled: July 11, 2001Date of Patent: February 11, 2003Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Tsuyoshi Nakamura, Taeko Ikegawa, Atsushi Sawano, Kousuke Doi, Hidekatsu Kohara
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Patent number: 6515071Abstract: A process for the preparation of dicyclopentadiene (DCPD) modified unsaturated polyester resins is described where the polyester resins have reduced levels of gel particles.Type: GrantFiled: May 22, 2002Date of Patent: February 4, 2003Assignee: Ashland Inc.Inventors: Daniel J. Riley, Roman Loza
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Patent number: 6489406Abstract: The invention relates unsaturated polyester resins for the manufacture of subzero flexible, weather-resistant products. The liquid unsaturated polyester resin comprises a linear unsaturated polyester obtained by reacting 5-30 mol % of one or more ethylenically unsaturated dicarboxylic acids (A), 20-45 mol % of one or more other aliphatic or aromatic acids (B) and 40-60 mol % of two or more polyhydric alcohols and 30-60 wt % of one or more reactive monomers. The linear unsaturated polyesters have a cone and plate viscosity (I.C.I.) of 2 ps/125° C.-20 ps/125° C. and a molecular weight Mw of 20,000-100,000. The invention also relates to a process for the manufacture of such unsaturated polyester resins and to the use of them in applications wherein good adhesion to supporting material and flexibility at ambient and especially at low temperatures are needed.Type: GrantFiled: March 29, 2001Date of Patent: December 3, 2002Assignee: Ashland Inc.Inventors: Paul Mahbub, Karri Airola, Eija Valtonen
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Patent number: 6482874Abstract: The present invention provides a method of accelerating hardening of thermosetting resin and a device therefor such that hardening time is rendered far shorter than in the case of the prior art. By way of a pertinent means, when unhardened thermosetting resin is to be disposed in an atmosphere having a specified temperature for the purpose of hardening, a ceramic plasma spraying plane is formed in at least one portion, or preferably in as large an area as possible, in the above-mentioned atmosphere whose temperature is maintained at a specified level and in which the above-mentioned resin is disposed, thereby causing convective heat existing in the hot air to be thermally converted into far infrared radiant heat radiation from the ceramic plasma spraying plane mentioned above.Type: GrantFiled: January 8, 2001Date of Patent: November 19, 2002Inventors: Shin Kiyokawa, Taro Kiyokawa
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Patent number: 6479618Abstract: Processes for preparing linear polyesters by reacting a dicarboxylic acid having from 2 to 10 carbon atoms, a polyol having from 2 to 15 carbon atoms, a low-boiling primary alcohol and a catalytic-effective amount of a lipase, wherein the reaction mixture is free of additional solvents; are described. The use of such linear polyesters in cosmetics is also described.Type: GrantFiled: June 7, 2001Date of Patent: November 12, 2002Assignee: Cognis Deutschland GmbHInventor: Anja Vonderhagen
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Patent number: 6469129Abstract: A process for making a crosslinked branched polyester gel from at least two pregel compositions comprising: a) reacting precursor repeat units formed from (1) at least one polyol having three or more hydroxyl groups or esters thereof, (2) at least one aliphatic or aromatic polyfunctional acid or ester thereof, or a mixture thereof; and (3) optionally at least one long chain aliphatic carboxylic acid or ester thereof, or aromatic monocarboxylic acid or ester thereof, or mixture thereof, to substantial completion in separate reactors to produce in a first reactor a first composition comprising a pre-gel having carboxyl end groups and to produce in a second reactor a second composition comprising a pre-gel having hydroxyl end groups, b) combining the first and second compositions to form a mixture; and c) processing the mixture in an extruder, a continuous processor, or a container to convert the mixture into a crosslinked branched polyester gel.Type: GrantFiled: April 26, 2000Date of Patent: October 22, 2002Assignee: Eastman Chemical CompanyInventors: Phillip M. Cook, Michael D. Hamlin, Lanny C. Treece, George G. Mayfield, Charles R. Tomlinson
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Patent number: 6444782Abstract: The invention relates to a process for making a high molecular weight pre-gel for a cross-linked branched polyester comprising: a) reacting polyester precursor repeat units via condensation polymerization in a continuous or semi-continuous, or batch reactor stage to form a low molecular weight pre-gel; and b) further reacting the low molecular weight pre-gel via condensation polymerization in a continuous thin-film reactive vacuum processing stage to form a high molecular weight pre-gel.Type: GrantFiled: April 26, 2000Date of Patent: September 3, 2002Assignee: Eastman Chemical CompanyInventor: Michael D. Hamlin
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Patent number: 6444018Abstract: A phase change ink carrier composition comprising at least one anhydride/amino alcohol based adduct which is a reaction product of at least one anhydride and at least one amino alcohol, wherein the reaction product is an ester material or an amide material, but not an ester-amide material.Type: GrantFiled: February 12, 1999Date of Patent: September 3, 2002Assignee: Xerox CorporationInventors: Clifford R. King, Jeffery H. Banning, Donald R. Titterington
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Patent number: 6429278Abstract: In a process for producing a polyester containing 1,4-cyclohexanedimethanol (CHDM) as one of its glycol components, an aqueous or a methanolic slurry comprising CHDM and a dicarboxylic acid is prepared. The slurry is maintained at a temperature below the melting point of CHDM. The slurry is then fed into a reactor. The slurry is esterified at sufficient temperatures and pressures, and optionally in the presence of a suitable catalyst, to effect esterification. A prepolymer is formed. The prepolymer is then polycondensed at sufficient temperatures and pressures in the presence of a suitable catalyst to effect polycondensation to form a polyester.Type: GrantFiled: January 22, 2001Date of Patent: August 6, 2002Assignee: Eastman Chemical CompanyInventors: Earl Edmondson Howell, Jr., Donna Rice Quillen, Aaron Nathaniel Edens
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Publication number: 20020103329Abstract: The invention relates to a powder paint binder-composition comprising a polymer that contains endomethylene tetrahydrophthalic acid units and a crosslinker.Type: ApplicationFiled: November 30, 2001Publication date: August 1, 2002Applicant: DSM N.V.Inventors: Fokeltje A. Koldijk, Eimbert G. Belder, Coenraad M. Gehrels, Tosko A. Misev
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Patent number: 6423816Abstract: The present invention relates to polyester polyols having a hydroxyl number of 60 to 400, which are esterification products of a) an alcohol component containing one or more aliphatic or cycloaliphatic alcohols having at least 3 hydroxyl groups and 3 to 8 carbon atoms with b) a carboxylic acid component containing itaconic acid, maleic acid, their anhydrides and/or fumaric acid, provided that at least 10 mole % of either component a) or component b) is an aliphatic or cycloaliphatic, saturated or unsaturated monoalcohol or monocarboxylic acid having 1 to 18 carbon atoms. The present invention also relates to two-component polyurethane coating compositions containing these polyester polyols and lacquer polyisocyanates as the binder and to their use for coating substrates, in particular automotive substrates.Type: GrantFiled: January 4, 1996Date of Patent: July 23, 2002Assignee: Bayer AktiengesellscahftInventors: Christian Wamprecht, Michael Sonntag
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Patent number: 6420040Abstract: A coating composition for application to primed metal substrates as a topcoat is disclosed. The coating composition is especially useful on metal closures for vacuum-packed food products. The coating composition is free of a halide-containing vinyl polymer and comprises: (a) an acrylate co-polymer having pendant hydroxy groups, (b) a hydroxy-terminated polyester, (c) a crosslinker, and (d) a nonaqueous carrier.Type: GrantFiled: April 30, 1999Date of Patent: July 16, 2002Assignee: The Valspar CorporationInventors: Lawrence P. Seibel, Girish G. Parekh