Patents Examined by David W. Woodward
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Patent number: 5077350Abstract: Poly(aryl ether/thioether)-poly(aryl carbonate) block copolymers are prepared by reacting a poly(aryl carbonate) with a poly(aryl ether/thioether) having at least one electron-withdrawing group located in a position ortho or para to its ether/thioether linking group, in the presence of an exchange catalyst. At least a portion of the poly(aryl ether/thioether) blocks are joined to the poly(aryl carbonate) blocks through an ether/thioether oxygen or sulfur atom.Type: GrantFiled: April 16, 1990Date of Patent: December 31, 1991Assignee: The Dow Chemical CompanyInventors: Michael J. Mullins, Edmund P. Woo
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Patent number: 5071944Abstract: A polymerization process is provided for the production of high molecular weight aromatic sulfide/ketone polymer from at least one dihaloaromatic ketone, at least one alkali metal sulfide, at least one polar organic compound and water wherein the polymerization reaction is conducted in two distinct steps separated by an intermediate step of removal of at least a portion of the water.Type: GrantFiled: February 27, 1989Date of Patent: December 10, 1991Assignee: Phillips Petroleum CompanyInventors: Michael D. Cliffton, Jon F. Geibel
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Patent number: 5070127Abstract: The present invention relates to an impact resistant polymeric composition comprising a polyarylene sulfide, a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein at least one graftable functional molecule is grafted to the block copolymer in the vinylarene block and a silane.Type: GrantFiled: November 20, 1990Date of Patent: December 3, 1991Assignee: Hoechst Celanese CorporationInventor: Andrew Auerbach
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Patent number: 5064937Abstract: A process for preparing a polymer having repeating units corresponding to the structure ##STR1## wherein y is in the range of 0.005 to 0.15, x is in the range of 0.02 to 0.25, n is at least 200, and R a divalent aromatic radial. The polymer is prepared by reacting a diiodoaromatic compound and elemental sulfur.Type: GrantFiled: June 6, 1990Date of Patent: November 12, 1991Assignee: Eastman Kodak CompanyInventors: David R. Fagerburg, Joseph J. Watkins, Paul B. Lawrence, Mark Rule
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Patent number: 5047465Abstract: The present invention relates to an impact resistant polymeric composition comprising a polyarylene sulfide and a thermally stable modified selectively hydrogenated high 1,2 content block copolymer wherein at least one graftable functional molecule is grafted to the block copolymer in the vinylarene block.Type: GrantFiled: July 7, 1989Date of Patent: September 10, 1991Assignee: Hoechst Celanese CorporationInventor: Andrew B. Auerbach
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Patent number: 5041335Abstract: There are provided an undercoat composition with excellent adhesiveness to both a resin coating layer and a metal layer, and a metal substrate coated with a resin composition. The undercoat composition and the resin-coated metal substrate offer excellent hot-water resistance and chemical resistance.Type: GrantFiled: December 5, 1988Date of Patent: August 20, 1991Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Toshimi Inai, Koichi Karukaya, Masao Ikeda, Kazuyoshi Yamamoto
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Patent number: 5037951Abstract: An improved process for producing biphenylene sulfide comprising reacting difluorobiphenyl with an alkali metal sulfide in a polar organic compound. The resulting polymer has a high melting point and fiber composites formed therefrom have excellent mechanical properties.Type: GrantFiled: September 28, 1989Date of Patent: August 6, 1991Assignee: Phillips Petroleum CompanyInventors: Michael C. Yu, Harold D. Yelton
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Patent number: 5037953Abstract: In a process for producing poly (p-phenylenesulfide) from an alkali metal sulfide and a p-dihalobenzene, a product polymer of an advantageously increased molecular weight is obtained by: providing a mixture comprising an alkali metal sulfide, a polar aprotic solvent and a carboxylic acid sodium salt represented by the general formula: ZCOONa (wherein Z is a C.sub.6 -C.sub.20 aromatic hydrocarbon group or a substituted or unsubstituted pyridyl group ##STR1## where substituents R, which may be the same or different, represent each a C.sub.1 -C.sub.Type: GrantFiled: November 13, 1990Date of Patent: August 6, 1991Assignees: Tosoh Corporation, Toso Susteel Co., Ltd.Inventors: Hiroshi Inoue, Toshikazu Kato, Kensuke Ogawara
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Patent number: 5036146Abstract: High temperature resistant polysulfone-polyimide block copolycondensates suitable for example for producing shaped articles are composed of at least one polyarylene ether sulfone block comprising units of the structure ##STR1## and at least one polyimide block comprising units of the structure ##STR2## where R.sup.1 and R.sup.2 are identical or different and each is hydrogen or methyl and X is methylene or 1,2-ethylene, and are prepared by condensing conventionally obtained amine-terminated polyarylene ether sulfone blocks with polyimide blocks in the melt.Type: GrantFiled: December 15, 1989Date of Patent: July 30, 1991Assignee: BASF AktiengesellschaftInventors: Carola Hedtmann-Rein, Gerhard Heinz
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Patent number: 5030669Abstract: A dispersion and a method therefor wherein the dispersion has composition A or B, whereinA is a nonaqueous dispersion comprising pigment particles having an average size of less than 0.1 micrometer dispersed in an organic medium, andB is an aqueous dispersion comprising certain classes of inorganic pigment particles having an average size of less than 0.1 micrometer dispersed in an aqueous medium, wherein said classes of inorganic pigment particles are selected from the group consisting of metal oxides and metal salts.Type: GrantFiled: May 15, 1990Date of Patent: July 9, 1991Assignee: Minnesota Mining and Manufacturing CompanyInventors: William A. Hendrickson, Robin E. Wright, Richard C. Allen, James A. Baker, William M. Lamanna
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Patent number: 5030668Abstract: Incorporation of 0.02-1.0 weight percent of epoxy containing compounds into glass reinforced polyacetal molding compositions resulting in improved anaerobic thermal stability of such compositions during processing.Type: GrantFiled: March 6, 1987Date of Patent: July 9, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Mark E. Wagman
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Patent number: 5028644Abstract: This invention relates to polyarylene sulfide molding compounds, preferably polyphenylene sulfide molding compounds, having improved processability and increased UV stability.Type: GrantFiled: January 2, 1990Date of Patent: July 2, 1991Inventors: Hans-Detlef Heinz, Walter Schmitt, Klaus Reinking, Burkhard Kohler, Rolf-Volker Meyer
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Patent number: 5028656Abstract: A resin composition consisting essentially of(A) a polyphenylene ether having added thereto an unsaturated carboxylic acid having 3 to 10 carbon atoms or an anhydride thereof (component A),(B) a polyphenylene sulfide (component B), and(C) a polyisocyanate compound (compound C), the weight ratio of component A to component B being from 5:95 to 95:5 and the amount of component C being from 0.01 to 10% by weight based on the total weight of components A and B; and molded articles therefrom.Type: GrantFiled: May 23, 1989Date of Patent: July 2, 1991Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Masao Okabe, Akikzau Amgai, Haruaki Eto, Yasuo Tanaka
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Patent number: 5026767Abstract: An antistatic aromatic polyimide article comprises an aromatic polyimide and a small amount of an antistatic agent. The antistatic agent is a sulfonate having the formula (I):R(SO.sub.3 M).sub.n (I)wherein R is a substituted or unsubstituted aryl group; M is an alkali metal; and n is 1 or 2; or a sulfinate having the formula (II):RSO.sub.2 M (II)wherein R and M have the same meanings as defined above.Type: GrantFiled: July 13, 1990Date of Patent: June 25, 1991Assignee: Ube Industries, Ltd.Inventors: Hiroshi Inoue, Tadashi Miura, Tetsuji Hirano
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Patent number: 5026764Abstract: A resin composition consisting essentially of(A) a polyphenylene ether having added thereto an unsaturated carboxylic acid having 3 to 10 carbon atoms or an anhydride thereof (component A),(B) a polyphenylene sulfide (component B), and(C) a polyisocyanate compound (component C),the weight ratio of component A to component B being from 5:95 to 95:5 and the amount of component C being from 0.01 to 10% by weight based on the total weight of components A and B; and molded articles therefrom.Type: GrantFiled: April 30, 1990Date of Patent: June 25, 1991Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Masao Okabe, Akikzau Amgai, Haruaki Eto, Yasuo Tanaka
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Patent number: 5026824Abstract: A process for preparing a polymer having repeating units corresponding to the structure ##STR1## wherein R is ##STR2## y is in the range of 0.005 to 0.10, x is in the range of 0.01 to 0.50 when R is ##STR3## x is in the range of 0.01 to 0.30 when R is ##STR4## and n is at least 200. The polymer is prepared by reacting a diiodoaromatic compound and elemental sulfur.Type: GrantFiled: May 14, 1990Date of Patent: June 25, 1991Assignee: Eastman Kodak CompanyInventors: Mark Rule, Jerry S. Fauver, David R. Fagerburg, Paul B. Lawrence, Joseph J. Watkins
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Patent number: 5023293Abstract: A polyarylene sulfide resin composition comprising a composition obtainable by the reaction of a polymer composition comprising 100 parts by weight of a composition of 10 to 90 wt. % of a polyarylene sulfide resin and 90 to 10 wt. % of a thermoplastic polyester, 0.01 to 10 parts by weight of a polyfunctional oxazoline compound and 0 to 300 parts by weight, based on 100 parts by weight of the composition consisting of the polyarylene sulfide resin and thermoplastic polyester, of a filler. The polyarylene sulfide resin composition of the present invention, because of the polyarylene sulfide resin and the thermoplastic polyester having been made compatible with each other, is excellent in the adhesive property of paint film (paintability) and the appearance of the surface without a large reduction in the excellent heat resistance and mechanical properties inherent to the polyarylene sulfide resin.Type: GrantFiled: February 8, 1990Date of Patent: June 11, 1991Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Akira Nakata, Naoki Yamamoto, Hiroshi Mori, Takuya Ueno
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Patent number: 5021523Abstract: Disclosed herein are a polymer alloy prepared by polymerizing 0.1 to 100 parts by weight of at least one radically polymerizable monomer to 100 parts by weight of polyarylene thioether having a repeating unit of ##STR1## as a main constituent and at least a part of said radically polymerizable monomers is polymerized within inner pores of the polyarylene thioether particles and a process for producing the polymer alloy.The polymer alloy of polyarylene thioether according to the present invention has the fine particles of the radically polymerized monomer uniformly dispersed in the said polymer alloy, and accordingly, the polymer alloy of polyarylene thioether according to the present invention is excellent in various physical properties, such as, good impact strength and improved anti-flash property.Type: GrantFiled: November 4, 1988Date of Patent: June 4, 1991Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Yo Iizuka, Ken Kashiwadate, Shunzo Endo, Toshio Hosokawa, Takayuki Katto, Toshiya Mizuno, Kenichi Katase
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Patent number: 5021497Abstract: There is disclosed a polyarylene sulfide resin composition which comprises 100 parts by weight of a polyarylene sulfide resin and 5 to 300 parts by weight of metal hydroxides composed of 50% by weight or more of magnesium hydroxide, and may further containing 20 to 120 parts by weight of glass fibers and 30 to 80 parts by weight of talc.Type: GrantFiled: November 8, 1990Date of Patent: June 4, 1991Assignee: Ube Industries, Ltd.Inventors: Shinji Ohara, Okihiro Morimoto, Nobumasa Suemura
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Patent number: 5021546Abstract: A process for producing elemental iodine and a copoly(arylene sulfide) corresponding to the structure ##STR1## wherein y is in the range of 0.001 to 0.15, x is in the range of 0.02 to 0.65 and n is at least 100, consisting essentially of (1) reacting at a temperature above about 175.degree. C., a mixture of diiodobenzene and diiodobiphenyl and elemental sulfur to produce the copoly(arylene sulfide), and (2) recovering the elemental iodine.Type: GrantFiled: June 11, 1990Date of Patent: June 4, 1991Assignee: Eastman Kodak CompanyInventors: David R. Fagerburg, Mark Rule, Joseph J. Watkins, Paul B. Lawrence