Five-membered Sulfur Ring Patents (Class 524/84)
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Patent number: 4785038Abstract: Difficultly soluble aromatic polyamides, polybenzimidazoles and polyureas dissolve in a defined mixture of liquid sulfoxide, a base and an alcohol or water.Type: GrantFiled: July 27, 1987Date of Patent: November 15, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventor: Wilfred Sweeny
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Patent number: 4761181Abstract: An organic base substance having an absorption maximum in a range of about 300 nm to about 1,500 nm is stabilized by making it coexist with a specific dithiolato metal complex. Fastness to light of dyes can be remarkably enhanced.Type: GrantFiled: January 23, 1987Date of Patent: August 2, 1988Assignee: Fuji Photo Film Co., Ltd.Inventor: Yoshiaki Suzuki
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Patent number: 4751020Abstract: The invention relates to an .alpha.-cyanoacylate adhesive which is fluorescent in ultraviolet light.Type: GrantFiled: November 13, 1986Date of Patent: June 14, 1988Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Klaus Marten, Heinz-Christian Nicolaisen
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Patent number: 4732570Abstract: A colored thermoplastic resin composition is provided which comprises a thermoplastic resin and a colorant in the form of an alkyleneoxy-substituted chromophore group provided in said thermoplastic resin in a minor amount sufficient to provide coloration to said thermoplastic resin. A process for preparing colored thermoplastic resins is also provided.Type: GrantFiled: June 23, 1986Date of Patent: March 22, 1988Assignee: Milliken Research CorporationInventors: Alan S. Baumgartner, Patrick D. Moore, Richard A. VanDahm
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Patent number: 4730014Abstract: Process for mass-coloring high molecular weight organic material, which comprises using a compound of the formula I ##STR1## in which one of R.sub.1 and R.sub.2 and one of R.sub.3 and R.sub.4 are independently of each other hydrogen, C.sub.1 -C.sub.12 -alkyl or benzyl and the other two radicals are independently of each other unsubstituted phenyl, phenyl which is substituted by halogen, trifluoromethyl, cyano, C.sub.1 -C.sub.12 -alkyl, phenyl or by the groups --OR.sub.5, --SR.sub.5, --COR.sub.6 or --SO.sub.2 R.sub.6, or a 5- or 6-membered aromatic heterocyclic ring containing one or more identical or different hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur without or with one or two fused-on benzene rings, R.sub.5 is hydrogen or C.sub.1 -C.sub.12 -alkyl, R.sub.6 is C.sub.1 -C.sub.12 -alkyl, and X and Y are independently of each other hydrogen, halogen or cyano.The invention also relates to new pyridoquinolones of the formula I.Type: GrantFiled: October 20, 1986Date of Patent: March 8, 1988Assignee: Ciba-Geigy CorporationInventors: Alain C. Rochat, Abul Iqbal, Edward E. Jaffe
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Patent number: 4711915Abstract: Surface coating compositions having improved resistance to attack by fungi and other microorganisms contain a biocidally effective amount of an antimicrobially active compound having the structural formula ##STR1## wherein R.sup.1 and R.sup.2 each represent an alkyl group having 1-8 carbon atoms.Type: GrantFiled: April 7, 1986Date of Patent: December 8, 1987Assignee: R. T. Vanderbilt Company, Inc.Inventor: Lester A. Doe, Jr.
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Patent number: 4679795Abstract: The disclosure relates to golf balls and more particularly, to golf ball cover compositions. The disclosure is concerned primarily with composition and method for the enhancement of the color of a golf ball cover by the use of an optical brightener in conjunction with a pigmented golf ball cover composition. This invention is concerned with the enhancement of the color of white golf ball covers. When used in conjunction with a white pigmentation system, the optical brighteners in question enhance the color in the blue spectrum range in order to give the cover a whiter appearance.Type: GrantFiled: April 18, 1986Date of Patent: July 14, 1987Assignee: Spalding & Evenflo Companies, Inc.Inventors: Terence Melvin, R. Dennis Nesbitt
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Patent number: 4640690Abstract: A colored thermoplastic resin composition is provided which comprises a thermoplastic resin and a colorant in the form of an alkyleneoxy-substituted chromophore group provided in said thermoplastic resin in a minor amount sufficient to provide coloration to said thermoplastic resin. A process for preparing colored thermoplastic resins is also provided.Type: GrantFiled: September 13, 1985Date of Patent: February 3, 1987Assignee: Milliken Research CorporationInventors: Alan S. Baumgartner, Patrick D. Moore, Richard A. VanDahm
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Patent number: 4612339Abstract: The polyamide polymers, notably the nylons, are effectively heat stabilized, characteristically with good retention of mechanical properties, by formulating therewith stabilizing amounts of (i) at least one lanthanide or yttrium-based compound and (ii) at least one ammonium, or alkali or alkaline earth metal halide.Type: GrantFiled: March 8, 1985Date of Patent: September 16, 1986Assignee: Rhone-Poulenc Specialites ChimiquesInventor: Bruno Giroud-Abel
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Patent number: 4576982Abstract: Thermoplastic composition exhibiting improved hydrolytic stability comprised of in physical admixture at least one aromatic carbonate polymer and an effective hydrolytic stabilizing amount of at least one compound represented by the general formula ##STR1## wherein R and R.sup.1 are independently selected from hydrogen, monovalent hydrocarbon radicals, and monovalent hydrocarbonoxy radicals.Type: GrantFiled: September 14, 1984Date of Patent: March 18, 1986Assignee: General Motors CompanyInventors: John A. Tyrell, Gary L. Freimiller
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Patent number: 4556220Abstract: The present invention provides solid golf balls having excellent rebound performance, durability and flight carry characteristics produced from a rubber composition containing one or more agents for regulating the molecular weight of grafted chain selected from the group consisting of 2-(4-morpholinyldithio) benzothiazole, 4,4'-dithio-bis-dimorpholine, dipentamethylenethiuram tetrasulfide and derivatives thereof.Type: GrantFiled: June 7, 1984Date of Patent: December 3, 1985Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Ichiro Tominaga, Akihiro Nakahara
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Patent number: 4550132Abstract: A peroxide-curable fluoroelastomer composition comprising an elastomeric copolymer containing units derived from vinylidene fluoride, units derived from at least one other fluorine-containing monomer copolymerizable with vinylidene fluoride, said monomer being a compound which contains 2-7 carbon atoms, contains no bromine atom and contains at least as many fluorine atoms as carbon atoms, up to 3 mole percent, based on the total moles of copolymer, of a bromine-containing olefin with the proviso that enough of such olefin is present to provide at least about 0.05 weight percent bromine in the copolymer and about 0.5-5 parts per hundred parts elastomeric copolymer of tetramethylene sulfone.Type: GrantFiled: March 19, 1984Date of Patent: October 29, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Dante R. Capriotti
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Patent number: 4481313Abstract: A process for instantaneous peptization of chloroprene-sulfur copolymer comprising contacting a latex of said copolymer with a peptization system comprising tetraethyl thiuram disulfide and mercaptobenzothiazole.Type: GrantFiled: December 6, 1982Date of Patent: November 6, 1984Assignee: Denka Chemical CorporationInventors: Edward M. Banta, Kenneth D. Fitzgerald
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Patent number: 4452932Abstract: Ester-carbonate interchange in blends of aromatic polycarbonates and poly(alkylene dicarboxylates) is inhibited by adding thereto an ortho-disubstituted hydroxyaromatic compound of the formula ##STR1## wherein X is hydrogen, lower alkyl or lower aryl.Type: GrantFiled: June 9, 1983Date of Patent: June 5, 1984Assignee: General Electric CompanyInventor: Daniel J. Brunelle
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Patent number: 4447572Abstract: Polyamides, flame retarded with a halogenated derivative and blended with a polymer blend resin being at least partially incompatible and having a lower melt viscosity than the polyamide, to improve the arc tracking resistance of the polyamide, are disclosed. The polyamides are particularly useful in the manufacture of flame retarded electrical components.Type: GrantFiled: November 6, 1981Date of Patent: May 8, 1984Assignee: Occidental Chemical CorporationInventors: Daniel J. Scharf, Charles S. Ilardo, Willis T. Schwartz, Gideon Salee
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Patent number: 4404300Abstract: A process is provided for the production of an improved impact polystyrene by the use of a polybutadiene which contains an optical brightener as the rubber to be dissolved in the styrene monomer, following which the polybutadiene-styrene solution is polymerized.Type: GrantFiled: February 16, 1982Date of Patent: September 13, 1983Assignee: Polysar LimitedInventors: Unto K. Koski, Hamdy Khalil, Adrian Cassola
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Patent number: 4403054Abstract: A composition comprising an aromatic carbonate polymer in admixture with an effective thermal stabilizing amount of a sulfoxide compound or a sulfinyl containing polymer.Type: GrantFiled: August 26, 1981Date of Patent: September 6, 1983Assignee: General Electric CompanyInventors: Victor Mark, John A. Tyrell
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Patent number: 4391935Abstract: An improved flame retardant polycarbonate composition of an aromatic carbonate polymer in admixture with an organic alkali metal salt or an organic alkaline earth metal salt or mixtures thereof, which composition has in admixture therewith a fluorinated polyolefin.Type: GrantFiled: May 4, 1981Date of Patent: July 5, 1983Assignee: General Electric CompanyInventors: Charles A. Bialous, John B. Luce, Victor Mark
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Patent number: 4364991Abstract: Highly fire resistant composites or laminates particularly applicable as structural components in aircraft, e.g. in the engine nacelle, as part of the acoustic panel-fire wall structure, and capable of withstanding a 2,000.degree. F. flame temperature, comprising incorporating an additive in the form of a phosphorylated amide, into a resin, e.g., a polyimide or an epoxy resin, such additive being soluble in the resin. The resulting resin containing the additive, e.g., phenyl phosphonic acid diamide, is then applied to or impregnated into a substrate such as glass fiber cloth or graphite fiber, to form a composite structure which is then cured. The resulting cured composite when subjected to high temperatures of the order of, e.g., a 2,000.degree. F. flame temperature, forms a resin char of reduced thermal conductivity which holds the fibers of the laminate together and maintains the structural stability and integrity of the laminate.Type: GrantFiled: September 25, 1980Date of Patent: December 21, 1982Assignee: McDonnell Douglas CorporationInventors: Norman R. Byrd, Daniel C. Peek
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Patent number: 4362829Abstract: A composition comprising an aromatic carbonate polymer in admixture with an effective thermal stabilizing amount of a compound of formula ##STR1##Type: GrantFiled: August 26, 1981Date of Patent: December 7, 1982Assignee: General Electric CompanyInventors: Stephen M. Cooper, Sheldon J. Shafer, John A. Tyrell
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Patent number: 4358575Abstract: A self-bonding additive for a dimedone functional one-component RTV in which the self-bonding agent is a dialkoxydisilylether functional silane.Type: GrantFiled: December 16, 1981Date of Patent: November 9, 1982Assignee: General Electric Company Silicone Products Business DivisionInventors: Warren R. Lampe, Tyrone D. Mitchell, James A. Cella
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Patent number: 4351915Abstract: 2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers which are useful as stabilizers for organic polymeric materials, and have the general formula are disclosed: ##STR1## wherein: Y.sub.1 is ##STR2## A.sub.1, A.sub.2, A.sub.3, A.sub.4, A.sub.5, and A.sub.6 are groups which are defined in the specification, at least one pair of A.sub.1 and A.sub.2 ; A.sub.3 and A.sub.4 ; and A.sub.5 and A.sub.6 being taken together to form the group ##STR3## the groups R.sub.1, R.sub.2, R.sub.3 and Z as well as X, p, and m being as defined in the specification.Type: GrantFiled: May 26, 1981Date of Patent: September 28, 1982Assignee: Adeka Argus Chemical Co., Ltd.Inventors: Naohiro Kubota, Toshihiro Shibata, Kazuo Sugibuchi, Motonubu Minagawa
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Patent number: 4346186Abstract: The present invention relates to processes for fixing photo-induced colored derivatives of spiropryans in solvent and solid solutions, and to compositions in which said photo-induced colored derivatives may be fixed, said processes comprising irradiating solvent or solid solutions comprising a spiropryan and an iodonium salt.Type: GrantFiled: September 25, 1981Date of Patent: August 24, 1982Assignee: Armstrong World Industries, Inc.Inventors: Thomas B. Garrett, John E. Herweh, Alan B. Magnusson, Normal L. Miller
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Patent number: 4339372Abstract: Chloroprene is polymerized in an alkaline aqueous emulsion, containing a sulfonamide. The presence of the sulfonamide provides polychloroprene latices which are stabilized against aging.Type: GrantFiled: August 11, 1980Date of Patent: July 13, 1982Assignee: DistugilInventors: Paul Branlard, Jean-Pierre Merle
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Patent number: 4336323Abstract: A light insensitive imageable layer comprising a synthetic polymeric binder, a dye, a nitrate salt, and an acid.Type: GrantFiled: October 22, 1980Date of Patent: June 22, 1982Assignee: Minnesota Mining and Manufacturing CompanyInventor: John M. Winslow