Contains A Single 1,2-epoxy Group Patents (Class 528/366)
  • Patent number: 4647651
    Abstract: A novel process is disclosed for producing fluorinated pyromellitate surfactants. The process comprises two primary steps. The first step involves reacting pyromellitic dianhydride with fluorinated alcohol at a mole ratio of about two moles of fluorinated alcohol per mole of pyromellitic dianhydride, thereby producing a pyromellitate having two fluorinated esters moieties and two carboxylic acid moieties. Thereafter, the fluorinated pyromellitate with carboxylic acid moieties is reacted with an oxirane compound in the presence of trimellitic anhydride to produce fluorinated pyromellitate mixtures having a reduced percentage of fluorine.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: March 3, 1987
    Assignee: Allied Corporation
    Inventor: Bryce C. Oxenrider
  • Patent number: 4645817
    Abstract: The present invention relates to a process for the preparation of alkoxylation products of organic carboxylic acids containing alcoholic hydroxyl groups by the reaction of any organic compounds containing at least one carboxyl group with alkylene oxides in an alkoxylation reaction in the presence of catalysts, characterized in that the catalysts used are phase transfer catalysts selected from the group consisting of(a) tetraalkylammonium or tetraalkylphosphonium halides in which the sum of carbon atoms of the alkyl groups is at least 8,(b) basic alkali metal compounds converted into complexes with crown ethers and(c) complexes of (i) basic alkali metal compounds and (ii) acyclic organic compounds containing at least 5 alkylene oxide units of the formula --R--O-- (R=C.sub.1 -C.sub.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: February 24, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Joachim Probst, Michael Sonntag, Roland Richter, Hanns P. Muller
  • Patent number: 4636558
    Abstract: The process for preparing a novel thermoset polymer comprising copolymerizing a monomer containing both bicyclic amide acetal and epoxy groups with a dicarboxylic acid anhydride is described.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: January 13, 1987
    Assignee: Ashland Oil, Inc.
    Inventor: Anil B. Goel
  • Patent number: 4559058
    Abstract: A precondensate obtained by reacting(A) the product of reacting a mono- or polyfunctional primary or secondary amine with cyanamide, dicyandiamide, guanidine or biguanidine and(B) an epihalohydrin is obtained in the form of a stable aqueous dispersion by acidifying the reaction product, optionally in the presence of a water-soluble polymer. The product is useful as an after-treatment agent to improve the fastness of dyeings on cotton, wool or silk.
    Type: Grant
    Filed: June 28, 1984
    Date of Patent: December 17, 1985
    Assignee: Sandoz Ltd.
    Inventors: Brian Bennett, Donald K. Clough
  • Patent number: 4554341
    Abstract: Heat curable epoxy-styrene compositions exhibiting improved processability, low viscosity, long pot life, and fire retardancy which when cured with a special acid anhydride/onium salt epoxy curing blend in combination with a free-radical catalyst, yield cured products exhibiting improved physical properties, such as increased heat deflection temperature, increased flexural strength and increased flexibility.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: November 19, 1985
    Assignee: Shell Oil Company
    Inventor: Robert C. Allen
  • Patent number: 4551519
    Abstract: A novel process is disclosed for producing fluorinated pyromellitate surfactants. The process comprises two primary steps. The first step involves reacting pyromellitic dianhydride with fluorinated alcohol at a mole ratio of about two moles of fluorinated alcohol per mole of pyromellitic dianhydride, thereby producing a pyromellitate having two fluorinated esters moieties and two carboxylic acid moieties. Thereafter, the fluorinated pyromellitate with carboxylic acid moieties is reacted with an oxirane compound in the presence of trimellitic anhydride to produce fluorinated pyromellitate mixtures having a reduced percentage of fluorine.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: November 5, 1985
    Assignee: Allied Corporation
    Inventor: Bryce C. Oxenrider
  • Patent number: 4526957
    Abstract: The instant invention is directed to a copolymer of maleic anhydride and an alkylene oxide of the formula: ##STR1## wherein m is at least 4,n is at least 1,the ratio of m to n is at least 4:1, preferably 4:1 to 100:1,R, which may be the same or different, is a hydrogen, halogen, alkyl derivative or phenyl derivative, andR' is: ##STR2## The instant invention is also directed to a process for the preparation of the copolymer and its use in inhibiting the precipitation and deposition of scale in an aqueous system.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: July 2, 1985
    Assignee: Calgon Corporation
    Inventor: Gary F. Matz
  • Patent number: 4506048
    Abstract: A class of polymer precursor materials, which, under appropriate conditions, react to form cross-linked polymers, is disclosed. These materials contain a backbone segment, such as polyacrylate, having pendant therefrom mono- or disubstituted olefinic groups, such as vinyl itaconate, having specific polymerization rates. This class of materials, especially when coupled with specifically-defined oxygen-activated catalyst systems, provide paint and plastic compositions which exhibit excellent film formation, strength and durability characteristics.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: March 19, 1985
    Assignee: The Procter & Gamble Company
    Inventors: Rodney D. Bush, Medford D. Robbins
  • Patent number: 4500687
    Abstract: Excellent and very high quality impact-resistant polymer products products are comprised of particular polyether elastomer constituents which modify and attribute many desirable properties and characteristics to the interpolymerized end product; impact styrene polymers being especially advantageous varieties thereof. In-situ polymerization, with specific coordination catalyst systems, is followed to form polyether polymers of epoxidized monomer constituents provided directly dissolved (or dispersed) in the major addition-polymerizable monomer utilized. The rubbery polyether elastomer so made is then interpolymerized with the major monomer to provide the advantageous high impact end product.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: February 19, 1985
    Assignee: The Dow Chemical Company
    Inventor: David L. Wolfe
  • Patent number: 4480082
    Abstract: The reaction product of (i) an aromatic amide having the amine group of the amide attached to an aromatic ring, and (ii) a mono- or di-epoxide, has been found to be a good fortifier of epoxy resins. Epoxy resins have been found to attain increased strength and modulus (yet not brittle) by compounding:(a) a resin-forming polyepoxide,(b) an amine curing agent for (a), and(c) the above fortifier; and heat curing the mixture. Strengths as high as 130-150 MPa and modulus values to as high as 5000 MPa have been achieved yet with a ductile mode of fracture.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: October 30, 1984
    Assignee: Canadian Patents & Development Limited
    Inventors: Paul D. McLean, Andrew Garton, Robert F. Scott, Susan E. Gransden
  • Patent number: 4465810
    Abstract: A class of polymer precursor materials, which, under appropriate conditions, react to form cross-linked polymers, is disclosed. These materials contain a backbone segment, preferably a polyacrylate, and have pendant therefrom (1) reactive mono- or disubstituted olefinic groups, such as vinyl or allyl itaconate, and (2) water-solubilizing groups, such as the half ester of maleic acid. This class of materials, especially when combined with specifically-defined oxygen-activated catalyst systems, provides water-based paint compositions which exhibit film formation, strength and durability characteristics comparable to those of the best solvent-based paint formulations.
    Type: Grant
    Filed: July 1, 1982
    Date of Patent: August 14, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Dennis C. Toepker, Sheila S. Rodriguez, Joel I. Shulman
  • Patent number: 4446306
    Abstract: A reaction between pyromellitic dianhydride (PMDA) and less than two moles of fluoroalcohol produces an intermediate with ester, free acid and anhydride groups. Reaction with an oxirane compound such as epichlorohydrin reacts at the acid sites to produce pendant hydroxyls which react with anhydride on adjacent molecules to produce oligomers. Products with fluoroalcohol:PMDA ratios of, for example, about 1:0.6 to about 1:0.85 produce treated fibers with improved retention of oil repellancy, especially when annealed at 100.degree.-130.degree. C.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: May 1, 1984
    Assignee: Allied Corporation
    Inventor: Bryce C. Oxenrider
  • Patent number: 4435529
    Abstract: Novel compositions of matter comprising a reaction product of a tannin and epoxy material are hereby provided. The novel reaction products can be dispersed in an aqueous or solvent medium for use as a treating or coating composition which imparts excellent corrosion resistance to metals and exhibits excellent substrate and intercoat adhesion.
    Type: Grant
    Filed: February 11, 1982
    Date of Patent: March 6, 1984
    Assignee: PPG Industries, Inc.
    Inventors: Alan J. Kaylo, Nicholas T. Castellucci
  • Patent number: 4427835
    Abstract: A class of polymer precursor materials, which, under appropriate conditions, react to form cross-linked polymers, is disclosed. These materials contain a backbone segment, such as polyacrylate, having pendant therefrom mono- or disubstituted olefinic groups, such as vinyl itaconate, having specific polymerization rates. This class of materials, especially when coupled with specifically-defined oxygen-activated catalyst systems, provide paint and plastic compositions which exhibit excellent film formation, strength and durability characteristics.
    Type: Grant
    Filed: August 7, 1981
    Date of Patent: January 24, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Rodney D. Bush, Medford D. Robbins
  • Patent number: 4390661
    Abstract: A novel composition of matter capable of being cured to a solid resinous material obtained as a result of the reaction of (1) a coal derivative comprising a mixture of monocyclic, polycyclic, multifunctional carboxylic acids, resulting from the interaction of coal with nitric acid with (2) an oxirane, and a process for producing a solid resinous material therefrom by heating the same under pressure.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: June 28, 1983
    Assignee: Gulf Research & Development Company
    Inventors: Johann G. Schulz, Daniel Margosian
  • Patent number: 4384950
    Abstract: A process for recovering bitumen from oil-in-water (o/w) emulsions is disclosed wherein water soluble demulsifiers are used. These demulsifiers are branched water-soluble quaternary ammonium-containing polymers. To resolve the bituminous petroleum emulsions, the process is carried out between 25.degree. and 160.degree. C. wherein the demulsifier of the invention is contacted with the bituminous emulsion.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: May 24, 1983
    Assignee: Texaco Inc.
    Inventor: David R. McCoy
  • Patent number: 4368314
    Abstract: A curable composition comprising:(A) at least one spiro-orthoester compound having at least one spiro-orthoester group represented by the formula: [I] ##STR1## wherein n is an integer of 3-5, (B) at least one curing agent selected from the group consisting of organic polybasic acids and their anhydrides,(C) optionally, an epoxy compound having at least one epoxy group, and(D) optionally a cationic polymerization catalyst when the composition comprises ingredient (C).Said composition is small in shrinkage on curing, and provides a cured product of high dimensional accuracy when used as a molding material.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: January 11, 1983
    Assignee: Toagoesi Chemical Industry Co., Ltd.
    Inventors: Takeshi Endo, Kiyokazu Mizutani, Takahisa Ogasawara
  • Patent number: 4361671
    Abstract: A novel composition of matter capable of being cured to a solid resinous material obtained as a result of the reaction of (1) a coal derivative comprising a mixture of monocyclic, polycyclic, multifunctional carboxylic acids, resulting from the interaction of coal with nitric acid with (2) an oxirane, and a process for producing a solid resinous material therefrom by heating the same under pressure.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: November 30, 1982
    Assignee: Gulf Research & Development Company
    Inventors: Johann G. Schulz, Daniel Margosian
  • Patent number: 4357455
    Abstract: Process for preparing copolymers soluble in organic solvents and containing hydroxyl groups, by the polymerization and esterification of (a) at least one .alpha.,.beta.-olefinically unsaturated carboxylic acid with (b) at least one olefinically unsaturated copolymerizable monomer and (c) at least one epoxy group-containing compound, at an elevated temperature, in the presence of a polymerization catalyst and, advantageously, a polymerization modifier, characterized in that glycidol, ##STR1## is used as component (c), either alone or in admixture with one or more glycidyl esters with 12 to 19 carbon atoms and derived from saturated fatty acids, the number of epoxy groups being at least equivalent to the number of carboxyl groups, and in mixtures of glycidol with glycidyl esters, the number of equivalents of glycidyl esters is at most twice as great as the number of equivalents of glycidol.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: November 2, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Josef Mondt, Helmut Rinno
  • Patent number: 4357463
    Abstract: Polyester silicate resinous products are produced by mixing an organic epoxide compound, hydrated silica, Lewis acid and a polycarboxylic acid and/or polycarboxylic acid anhydride, then heating the mixture to from 150.degree. C. to 250.degree. C. for 30 minutes to 4 hours. The polyester is silicate resinous products may be used as a coating agent, as a molding powder and as an adhesive.
    Type: Grant
    Filed: December 3, 1981
    Date of Patent: November 2, 1982
    Inventor: David H. Blount
  • Patent number: 4353999
    Abstract: Polymerable organic compounds and an epoxide compound are emulsified with aqueous alkali metal silicate solutions then polymerized with a catalyst such as a peroxide type catalyst thereby producing an alkali metal silicate organic plastic which may be used as an adhesive, as molding powder or reacted with an organic diisocyanide to produce polyurethane silicate resins and foams.
    Type: Grant
    Filed: March 18, 1982
    Date of Patent: October 12, 1982
    Inventor: David H. Blount
  • Patent number: 4350809
    Abstract: A process for the preparation of copolymers containing hydroxyl groups by radical reaction of(A) 10 to 30% by weight of at least one glycidyl ester containing 12 to 14 carbon atoms, of an aliphatic saturated monocarboxylic acid with a tertiary or quaternary .alpha.-carbon atom; and(B) 90 to 70% by weight of at least two unsaturated copolymerisable monomers, at least one of which contains at least one carboxyl group,wherein component (A) is introduced first to a reaction zone and is then reacted at a temperature of at least 140.degree. C. with component (B) and a radical initiator, the component (B) containing a monomer having carboxyl groups,wherein for the preparation of low-viscosity copolymers component (A) is reacted at 140 to 200.degree. C. by substance polymerisation until a degree of reaction of at least 95% is achieved, the component (B) containing at least 3.3% by weight of the monomer having carboxyl groups, and an article coated with a product of said process.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: September 21, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hannes Fischer, Helmut Plum
  • Patent number: 4335027
    Abstract: Air-driable alkyd resins are prepared by reacting substantially equimolar a dicarboxylic acid anhydride and a glycidyl ester of a primary fatty acid, at least part of the ester having a--CH.dbd.CH--linkage not .alpha..beta. to the carboxyl group residue of the fatty acid residue. The glycidyl ester may be used alone or in admixture with a glycidyl ether or ephichlorohydrin. Polymerization is effected at relatively low temperatures (100.degree. C. or less) using a catalyst, which is preferably a stannous or zinc carboxylate. The resins produced are substantially color-free and have a narrow range of molecular weights.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: June 15, 1982
    Assignee: Battelle Development Corporation
    Inventors: George E. Cremeans, Richard A. Markle
  • Patent number: 4267302
    Abstract: An epoxy resin composition which comprises:(1) a monoepoxide having at least one perfluoroalkyl group in one molecule; and(2) an epoxy resin having two or more epoxy groups in one molecule, the weight ratio of (1):(2) being 0.05:99.95 to 50:50. The composition can be cured with a curing agent to give a cured product having improved water-proof, oil-resistance and anti-contamination properties.
    Type: Grant
    Filed: September 25, 1979
    Date of Patent: May 12, 1981
    Assignee: Daikin Kogyo Co., Ltd.
    Inventor: Akira Ohmori
  • Patent number: 4233436
    Abstract: Block polymers containing an hydroxyalkyl phthalate ester as one of the constituent blocks and a copolymer of tetrahydrofuran and one or more alkylene oxides as one or more of the other constituent blocks are useful in preparing polyurethanes and polyesters.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: November 11, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ivan M. Robinson
  • Patent number: 4210702
    Abstract: The present invention relates to a process for the manufacture of soluble copolymers, which contain hydroxyl groups, can be crosslinked with organic polyisocyanates and are based on mixtures of styrene, methyl methacrylate, hydroxyethyl methacrylate, acrylic acid and glycidyl esters of .alpha.-alkylalkanemonocarboxylic acids and/or .alpha.,.alpha.-dialkylalkanemonocarboxylic acids, by heating in inert organic solvents in the presence of polymerization initiators and optionally chain stoppers, simultaneous esterification and polymerization taking place.
    Type: Grant
    Filed: August 18, 1978
    Date of Patent: July 1, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Horst Dalibor
  • Patent number: 4208488
    Abstract: A thermosetting coating or adhesive composition based on (A) at least one component selected from the group consisting of oligomeric and polymeric compounds containing at least one of the functional groups hydroxyl and epoxy groups, and (B) a polycarboxylic acid mixture comprising trimellitic acid and a major amount of at least one compound of one of the formulae ##STR1## wherein R, R' and R'", being the same or different, each represents a di- to hexavalent hydrocarbon radical having a total of from 1 to 12 carbon atoms, said radical containing from zero to 2 olefinic double bonds, said radical without double bonds being interrupted by up to 3 ether bridges:x and y which may be the same or different, each represents an integer of from 2 to 6;t an integer of from 1 to 5; andz and u, which may be the same or different, each represents zero or an integer of from 1 to 5 and a process for coating a substrate with said composition.
    Type: Grant
    Filed: February 15, 1978
    Date of Patent: June 17, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Kurt Kraft, Gerd Walz, Thaddaus Wirth
  • Patent number: 4171420
    Abstract: The trisubstituted (2,5-dihydroxyphenyl)phosphonium hydroxide inner salts and their hydrolyzed derivatives are novel latent catalysts for promoting reaction between vicinal epoxides and phenols and/or carboxylic acids (or anhydrides). Precatalyzed epoxy resins are easily prepared using such catalysts.
    Type: Grant
    Filed: September 26, 1978
    Date of Patent: October 16, 1979
    Assignee: The Dow Chemical Company
    Inventors: George A. Doorakian, Lawrence G. Duquette
  • Patent number: 4163836
    Abstract: The present invention relates to a process for the manufacture of soluble copolymers, which contain hydroxyl groups, can be crosslinked with organic polyisocyanates and are based on mixtures of styrene, methyl methacrylate, hydroxyethyl methacrylate, acrylic acid and glycidyl esters of .alpha.-alkylalkanemonocarboxylic acids and/or .alpha.,.alpha.-dialkylalkanemonocarboxylic acids, by heating in inert organic solvents in the presence of polymerisation initiators and optionally chain stoppers, simultaneous esterification and polymerisation taking place.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: August 7, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Horst Dalibor
  • Patent number: 4158652
    Abstract: Compositions comprising an ester diol alkoxylate in conjunction with crosslinkers, or polycaprolactone polyols or derivatives thereof, or low molecular weight polyols, or isocyanates, or latexes have been produced that are useful as coatings, inks and adhesives.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: June 19, 1979
    Assignee: Union Carbide Corporation
    Inventors: Joseph V. Koleske, Robert J. Knopf, Oliver W. Smith
  • Patent number: 4157428
    Abstract: New and useful blends of thermosetting resins with copolymers of certain amounts of ethylene with another monomer copolymerizable therewith to provide solid but flexible polymers, and a third monomer containing epoxy side groups, and optionally carbon monoxide, are provided. These blends result in performance unattainable with the thermosetting resin alone in terms of flexibility, toughness, and adhesion. Such blends may be used, for example, to produce flexible, semirigid or rigid films, coatings, fibers, foams or molded articles.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: June 5, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Clarence F. Hammer
  • Patent number: 4154872
    Abstract: This invention relates to a process for preparing a catalytic solution of a sulfonium salt of a complex anion, capable of yielding a Lewis Acid when irradiated by UV or high energy ionizing radiation comprising reacting a sulfonium halide with an alkali metal salt of the complex anion in a solvent mixture containing a polyol having at least two hydroxy groups and a lactone.
    Type: Grant
    Filed: May 9, 1978
    Date of Patent: May 15, 1979
    Assignee: W. R. Grace & Co.
    Inventors: Jung-Hsien Tsao, Arthur D. Ketley
  • Patent number: 4131633
    Abstract: Certain phosphorus-containing compounds are described herein which are novel latent catalysts for promoting the reaction between vicinal epoxides and phenols and/or carboxylic acids (or anhydrides). Precatalyzed epoxy resins are easily prepared using such catalysts.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: December 26, 1978
    Assignee: The Dow Chemical Company
    Inventors: George A. Doorakian, Dennis L. Schmidt, Martin C. Cornell, III
  • Patent number: 4129670
    Abstract: Room-temperature-curable compositions can be prepared readily by mixing (A) 100 parts by weight of at least one non-cycloaliphatic epoxy resin and (B) from about 1 to about 1,000 parts by weight of at least one amine-terminated liquid polymer having a carbon-carbon backbone, (C) optionally, a chain extender or crosslinker and (D) optionally, a curing agent. The compositions are useful as castable elastomeric systems, as toughened structural plastics, as paints and coatings, as sealants and adhesives, and the like.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: December 12, 1978
    Assignee: The B. F. Goodrich Company
    Inventor: Changkiu K. Riew
  • Patent number: 4125524
    Abstract: The present invention provides a process for the production of a polyester having an acid number which is not greater than 65 which comprises reacting an acid anhydride with a monoterminal epoxide in such a way that a self-sustaining reaction is initiated within 200 seconds of the reactants being mixed together and said reaction results in the attainment of a maximum temperature in excess of 200.degree. C within 200 seconds of initiation.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: November 14, 1978
    Assignee: Monsanto Company
    Inventors: James C. Hill, Walter R. Knox
  • Patent number: 4116944
    Abstract: The present invention provides a process for the production of a polyester having an acid number which is not greater than 65 which comprises reacting an acid anhydride with a monoterminal epoxide in the presence of a solvent for the polyester in such a way that a self-sustaining reaction is initiated within 200 seconds of the reactants being mixed together and said reaction results in the attainment of a maximum peak temperature within 200 seconds of initiation.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: September 26, 1978
    Assignee: Monsanto Company
    Inventors: James C. Hill, Walter R. Knox
  • Patent number: 4115296
    Abstract: To accelerate the curing of epoxide resins by particular curing agents, i.e., polyamines, polyaminoamides, polycarboxylic acids, or polycarboxylic acid anhydrides, there is employed an aliphatic or araliphatic monocarboxylic acid group at least two halogen atoms chosen from fluorine and chlorine atoms, or a salt thereof, such as magnesium trifluoroacetate and magnesium trichloroacetate.
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: September 19, 1978
    Assignee: Ciba-Geigy Corporation
    Inventor: Christopher Michael Andrews
  • Patent number: 4108844
    Abstract: Polyesters having as the repeating unit thereof a unit of the generic formula: ##STR1## (wherein, X stands for a hydrogen atom, a lower alkyl group, a phenyl group or a cinnamoyl-oxymethyl group, Y for a hydrogen atom or a lower alkyl group and R for --CH.dbd.CH--, --CH.sub.2 --CH.sub.2 -- or O-phenylene group) are new polyesters possessed of photosensitivity. These photosensitive polyesters are produced by the reaction of acid anhydrides with glycidyl cinnamate.
    Type: Grant
    Filed: February 22, 1977
    Date of Patent: August 22, 1978
    Assignee: Agency of Industrial Science & Technology
    Inventor: Wasaburo Kawai
  • Patent number: 4102942
    Abstract: High solids coating or ink compositions comprising blends of low molecular weight acrylic copolymers having pendant carboxyl groups and aliphatic polyepoxides.
    Type: Grant
    Filed: July 29, 1976
    Date of Patent: July 25, 1978
    Assignee: Union Carbide Corporation
    Inventors: Oliver Wendell Smith, Robert Arthur Taller, Joseph Victor Koleske
  • Patent number: 4102944
    Abstract: A low profile unsaturated polyester resin composition comprising (A) a reaction product between (1) a saturated polyester having a molecular weight of 3,000 - 50,000 obtained from a saturated polycarboxylic acid and a polyhydric alcohol and (2) an unsaturated monoglycidyl compounds, (B) an unsaturated polyester, and (C) an unsaturated monomer copolymerizable with the reaction product (A) and the unsaturated polyester (B) which gives a molded articles of improved surface smoothness and dimensional stability without deterioration of strength peculiar to unsaturated polyester resins.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: July 25, 1978
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshiya Fukuyama, Katsuo Akagane, Takao Miwa