Five-membered Sulfur Ring Patents (Class 524/84)
  • Patent number: 4785038
    Abstract: Difficultly soluble aromatic polyamides, polybenzimidazoles and polyureas dissolve in a defined mixture of liquid sulfoxide, a base and an alcohol or water.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: November 15, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Wilfred Sweeny
  • Patent number: 4761181
    Abstract: 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: Grant
    Filed: January 23, 1987
    Date of Patent: August 2, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshiaki Suzuki
  • Patent number: 4751020
    Abstract: The invention relates to an .alpha.-cyanoacylate adhesive which is fluorescent in ultraviolet light.
    Type: Grant
    Filed: November 13, 1986
    Date of Patent: June 14, 1988
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Klaus Marten, Heinz-Christian Nicolaisen
  • Patent number: 4732570
    Abstract: 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: Grant
    Filed: June 23, 1986
    Date of Patent: March 22, 1988
    Assignee: Milliken Research Corporation
    Inventors: Alan S. Baumgartner, Patrick D. Moore, Richard A. VanDahm
  • Patent number: 4730014
    Abstract: 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: Grant
    Filed: October 20, 1986
    Date of Patent: March 8, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Alain C. Rochat, Abul Iqbal, Edward E. Jaffe
  • Patent number: 4711915
    Abstract: 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: Grant
    Filed: April 7, 1986
    Date of Patent: December 8, 1987
    Assignee: R. T. Vanderbilt Company, Inc.
    Inventor: Lester A. Doe, Jr.
  • Patent number: 4679795
    Abstract: 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: Grant
    Filed: April 18, 1986
    Date of Patent: July 14, 1987
    Assignee: Spalding & Evenflo Companies, Inc.
    Inventors: Terence Melvin, R. Dennis Nesbitt
  • Patent number: 4640690
    Abstract: 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: Grant
    Filed: September 13, 1985
    Date of Patent: February 3, 1987
    Assignee: Milliken Research Corporation
    Inventors: Alan S. Baumgartner, Patrick D. Moore, Richard A. VanDahm
  • Patent number: 4612339
    Abstract: 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: Grant
    Filed: March 8, 1985
    Date of Patent: September 16, 1986
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventor: Bruno Giroud-Abel
  • Patent number: 4576982
    Abstract: 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: Grant
    Filed: September 14, 1984
    Date of Patent: March 18, 1986
    Assignee: General Motors Company
    Inventors: John A. Tyrell, Gary L. Freimiller
  • Patent number: 4556220
    Abstract: 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: Grant
    Filed: June 7, 1984
    Date of Patent: December 3, 1985
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Ichiro Tominaga, Akihiro Nakahara
  • Patent number: 4550132
    Abstract: 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: Grant
    Filed: March 19, 1984
    Date of Patent: October 29, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dante R. Capriotti
  • Patent number: 4481313
    Abstract: 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: Grant
    Filed: December 6, 1982
    Date of Patent: November 6, 1984
    Assignee: Denka Chemical Corporation
    Inventors: Edward M. Banta, Kenneth D. Fitzgerald
  • Patent number: 4452932
    Abstract: 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: Grant
    Filed: June 9, 1983
    Date of Patent: June 5, 1984
    Assignee: General Electric Company
    Inventor: Daniel J. Brunelle
  • Patent number: 4447572
    Abstract: 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: Grant
    Filed: November 6, 1981
    Date of Patent: May 8, 1984
    Assignee: Occidental Chemical Corporation
    Inventors: Daniel J. Scharf, Charles S. Ilardo, Willis T. Schwartz, Gideon Salee
  • Patent number: 4404300
    Abstract: 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: Grant
    Filed: February 16, 1982
    Date of Patent: September 13, 1983
    Assignee: Polysar Limited
    Inventors: Unto K. Koski, Hamdy Khalil, Adrian Cassola
  • Patent number: 4403054
    Abstract: 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: Grant
    Filed: August 26, 1981
    Date of Patent: September 6, 1983
    Assignee: General Electric Company
    Inventors: Victor Mark, John A. Tyrell
  • Patent number: 4391935
    Abstract: 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: Grant
    Filed: May 4, 1981
    Date of Patent: July 5, 1983
    Assignee: General Electric Company
    Inventors: Charles A. Bialous, John B. Luce, Victor Mark
  • Patent number: 4364991
    Abstract: 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: Grant
    Filed: September 25, 1980
    Date of Patent: December 21, 1982
    Assignee: McDonnell Douglas Corporation
    Inventors: Norman R. Byrd, Daniel C. Peek
  • Patent number: 4362829
    Abstract: A composition comprising an aromatic carbonate polymer in admixture with an effective thermal stabilizing amount of a compound of formula ##STR1##
    Type: Grant
    Filed: August 26, 1981
    Date of Patent: December 7, 1982
    Assignee: General Electric Company
    Inventors: Stephen M. Cooper, Sheldon J. Shafer, John A. Tyrell
  • Patent number: 4358575
    Abstract: A self-bonding additive for a dimedone functional one-component RTV in which the self-bonding agent is a dialkoxydisilylether functional silane.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: November 9, 1982
    Assignee: General Electric Company Silicone Products Business Division
    Inventors: Warren R. Lampe, Tyrone D. Mitchell, James A. Cella
  • Patent number: 4351915
    Abstract: 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: Grant
    Filed: May 26, 1981
    Date of Patent: September 28, 1982
    Assignee: Adeka Argus Chemical Co., Ltd.
    Inventors: Naohiro Kubota, Toshihiro Shibata, Kazuo Sugibuchi, Motonubu Minagawa
  • Patent number: 4346186
    Abstract: 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: Grant
    Filed: September 25, 1981
    Date of Patent: August 24, 1982
    Assignee: Armstrong World Industries, Inc.
    Inventors: Thomas B. Garrett, John E. Herweh, Alan B. Magnusson, Normal L. Miller
  • Patent number: 4339372
    Abstract: 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: Grant
    Filed: August 11, 1980
    Date of Patent: July 13, 1982
    Assignee: Distugil
    Inventors: Paul Branlard, Jean-Pierre Merle
  • Patent number: 4336323
    Abstract: A light insensitive imageable layer comprising a synthetic polymeric binder, a dye, a nitrate salt, and an acid.
    Type: Grant
    Filed: October 22, 1980
    Date of Patent: June 22, 1982
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: John M. Winslow