1,3-diazole Patents (Class 524/93)
  • Patent number: 5548003
    Abstract: Solid aromatic or cycloaliphatic azole-aldehyde addition products can be used as chemical embossing inhibitors. Most of the addition products can be readily micronized and dispersed into water-based printing inks for use in producing textured foamed plastic surfaces. These compounds comprise a general class of adducts of azole derivatives (benzotriazole and benzimidazole) reacted with aldehydes.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: August 20, 1996
    Assignee: Armstrong World Industries, Inc.
    Inventors: Joseph F. Remar, Carl E. Sideman
  • Patent number: 5536572
    Abstract: An olefin polymer composition is disclosed which comprises (by weight):(a) from 0.3 to 3% of a complex of general formula:R.(MeX.sub.3).sub.ywherein R is an amine; Me is bismuth or antimony; X is chlorine or bromine; y is a number from 0.3 to 4.0;(b) from 0.1 to 1% of poly(1,4-diisopropylbenzene);(c) from 0.1 to 0.5% of an organic epoxide;the balance to 100% being an olefin polymer.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: July 16, 1996
    Assignee: Montell North America Inc.
    Inventors: Giancarlo Braca, Guido Bertelli, Leonardo Spagnoli
  • Patent number: 5523387
    Abstract: This invention relates to dyes in salt form which are useful for mass dyeing of synthetic polymers. In particular, this invention relates to ammonium or immonium salt-containing dyes that display good polymer affinity, and the methods for using those dyes to color polymeric substrates.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: June 4, 1996
    Assignee: Sandoz Ltd.
    Inventors: Jurgen Goldmann, Bansi L. Kaul
  • Patent number: 5494951
    Abstract: An olefin polymer composition is disclosed which contains (by weight):(a) from 0.3 to 3% of a complex of general formula:R.(MeX.sub.3).sub.ywherein R is an amine; Me is bismuth or antimony; X is chlorine or bromine; y is a number from 0.3 to 4.0;(b) from 0.1 to 1% of poly(1,4-diisopropylbenzene);(c) from 0.1 to 0.5% of an organic epoxide; the balance to 100% being an olefin polymer.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: February 27, 1996
    Assignee: Montell North America Inc.
    Inventors: Giancarlo Braca, Guido Bertelli, Leonardo Spagnoli
  • Patent number: 5493011
    Abstract: Water-insoluble azo colorants, their preparation and use The invention relates to monoazo and disazo compounds of the formula (I) ##STR1## in which D is the radical of a carbocyclic or heterocyclic diazo or bisdiazo component, R.sup.1 and R.sup.2, independently of one another, are each a substituted or unsubstituted aryl or heteroaryl radical, X.sup.1 and X.sup.2, independently of one another, are each ring-forming ether oxygen or a substituted or unsubstituted imide grouping and n has the value 0 or 1, in which rings A and B, independently of one another, can each be additionally substituted and/or carry substituted or unsubstituted fused rings.These new compounds of the formula (I) are obtained by coupling diazotized amines or diamines of the type D--NH.sub.2 or H.sub.2 N--D--NH.sub.2 with (benzoxazol-2-yl)- or (benzimidazol-2-yl)-arylacetamides.Depending on the presence and length of alkyl chains, the compounds of the formula (I) are suitable for use as pigments, disperse dyes or oil-soluble dyes.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: February 20, 1996
    Assignee: Hoechst AG
    Inventors: Rudiger Jung, Reinhold Deubel
  • Patent number: 5284888
    Abstract: A corrosion inhibiting, EMI/RFI shielding composition is provided comprising a polyurethane resin which comprises a hydroxy or amine functional first polymer and an isocyanate, or isocyanurate terminated second polymer, a stabilized conductive filler, and an azole. In one embodiment of the invention a composition is provided comprising a polyurethane which comprises a fluoroolefin vinyl ether and an isocyanurate, a stabilized copper powder, and a triazole selected from the group consisting of alkyl substituted aromatic triazoles and other azoles. The invention further provides a method of composition a substrate with a composition of the invention in order to provide EMI/RFI shielding and prevent corrosion, and a substrate thus coated.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: February 8, 1994
    Assignee: Chomerics, Inc.
    Inventor: Noredin H. Morgan
  • Patent number: 5281635
    Abstract: A homogeneous composition for forming on firing a film of precious metal, which is one or more of platinum, palladium, gold and silver, on a substrate, for instance to decorate table ware, comprises polymeric resin and a solution, in water and a co-solvent, of thiolate of the precious metal, the composition containing 3-22% by weight of the precious metal as the thiolate, and the co-solvent, resin and thiolate being such that as the composition on a substrate dries and is progressively heated in firing, the water evaporates off to leave a homogeneous composition of the resin and thiolate in the co-solvent, then the co-solvent evaporates off to leave a homogeneous composition of the thiolate in the resin, and then the thiolate decomposes to the precious metal while the resin volatilise.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: January 25, 1994
    Assignee: Johnson Matthey Public Limited Company
    Inventor: Peter T. Bishop
  • Patent number: 5266320
    Abstract: The use of an aminovinyl-substituted heterocyclic compound of the general formula I ##STR1## in which R.sup.1 denotes hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, or halogen, and, if more than one radical R.sup.1 are present, these may be the same or different,R.sup.2 denotes cyano or C.sub.1 -C.sub.20 -alkoxycarbonyl or C.sub.3 -C.sub.6 -cycloalkoxycarbonyl,R.sup.3 denotes hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.1 -C.sub.18 -alkoxy, halogen, cyano, C.sub.1 -C.sub.20 -alkoxycarbonyl, or C.sub.3 -C.sub.6 -cycloalkoxycarbonyl, and, if more than one radical R.sup.3 are present, these may be the same or different,X denotes NH, O or S,m is equal to 1 or 2, andn is an integer from 1 to 5,as a stabilizer for organic materials.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: November 30, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Holderbaum, Alexander Aumueller, Hubert Trauth
  • Patent number: 5240976
    Abstract: Elastomers are very effectively stabilized against thermal and oxidative degradation at elevated temperatures with a blend of an N,N,N',N'-tetrasubstituted 1,4-diamino-2-butene, where the substituents are alkyl, cycloalkyl, aralkyl, aryl or mixtures thereof, in combination with a mercaptoimidazole of formula IV ##STR1## where E is hydrogen, alkyl, cycloalkyl, aryl or phenylalkyl.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: August 31, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Douglas W. Horsey, Ambelal R. Patel
  • Patent number: 5166235
    Abstract: Concentrate of a flame retardant additive, in the form of nonextruded particles, each one comprising:A) a matrix of a nonextruded, as polymerized particle, preferably spheroidal, of a polymer or copolymer of olefins having porosity greater than or equal to 15%, expressed as a percent of the void volume on the total volume of the particle,B) the product of reaction between bismuth or antimony trichloride or tribromide, or their mixtures, and one or more amines; wherein said product (B) is made "in situ" and deposited on the surface of the matrix and inside the pores thereof.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: November 24, 1992
    Assignee: Himont Incorporated
    Inventors: Guido Bertelli, Paolo Goberti
  • Patent number: 5158997
    Abstract: Disclosed is an olefin polymer-based thermoplastic elastomer comprising a propylene polymer material, an amorphous olefin copolymer rubber, and optionally a semicrystalline, essentially linear ethylene-C.sub.3-4 alpha-olefin copolymer, having incorporated therein zinc salts of certain mercapto compounds and sterically hindered di-tertiary butyl phenol compounds. The compositions exhibit good retention of properties at elevated temperatures.
    Type: Grant
    Filed: August 31, 1991
    Date of Patent: October 27, 1992
    Assignee: Himont Incorporated
    Inventor: Dominic A. Berta
  • Patent number: 5140055
    Abstract: A rubber composition containing a specifically limited imidazole compound or imidazoline compound, or benzimidazole or its specifically limited derivative has a large tan .delta. at high temperature range, and a tire having a tread using such rubber composition is prevented from being lowered in the value of tan .delta. due to the temperature rising during the running and has an improved grip performance during the high speed running. The use of Bronsted acid in combination with the imidazole, imidazoline or benzimidazole can obviate the drawback of poor scorch resistance of a rubber composition containing the imidazole, imidazoline or benzimidazole alone, and the resulting rubber composition has a very large tan .delta. at high temperature range, and a tire having a tread using the rubber composition has a remarkably improved grip performance during the high speed running.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: August 18, 1992
    Assignee: Bridgestone Corporation
    Inventors: Yasushi Hirata, Kazuya Hatakeyama
  • Patent number: 5115003
    Abstract: Polymer compositions comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon which contain a stabilizing mixture of a hydroxyapatite and a mercaptobenzimidazole demonstrate improved stability.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: May 19, 1992
    Assignee: Shell Oil Company
    Inventor: Eric R. George
  • Patent number: 5068271
    Abstract: Disclosed are novel 2,4,6 substituted pyrimidines where the substituents may be the same or different groups. At least one substituent must be N-alkyl paraphenylenediamino, and the other substituents may be various radicals containing sulfur, oxygen or nitrogen or hydrogen or alkyl groups. The compounds are useful as antioxidants and antiozonants for unsaturated compounds and polymers.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: November 26, 1991
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Edward L. Wheeler, Franklin H. Barrows, Robert J. Franko
  • Patent number: 5061566
    Abstract: A corrosion inhibiting, EMI/RFI shielding composition is provided comprising a polyurethane resin which comprises a hydroxy or amine functional first polymer and an isocyanate terminated second polymer, a stabilized conductive filler, and an azole. In one embodiment of the invention a coating is provided comprising a polyurethane which comprises a fluoroolefin vinyl ether and an isocyanate terminated castor oil prepolymer, a stabilized copper powder, and a triazole selected from the group consisting of alkyl substituted aromatic trianzoles and other azoles. The invention further provides a method of coating a substrate with a coating of the invention in order to provide EMI/RFI shielding and prevent corrosion, and a substrate thus coated.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: October 29, 1991
    Assignee: Chomerics, Inc.
    Inventor: Norodin H. Morgan
  • Patent number: 5055505
    Abstract: A polycarbonate blend composition comprising 95-5 wt % of a polycarbonate resin, 5-95% of an ABS resin and 0-01-5 parts per hundred of a heat stabilizer (relative to the combined resin weight). The heat stabilizers are selected from benzothiazoles of formula: ##STR1## wherein R is selected from hydrogen, alkyl, aryl and benzothiazolyl; benzimidazole compounds of formula: ##STR2## wherein R is selected from hydrogen, alkyl, aryl and benzimidazolyl; hydrazine compound of formula: ##STR3## wherein R is alkyl, and cation exchange materials selected from metal salts of silicaluminate zeolites, metal salts of triphosphates and cation exchange resins. These poly blend composition display improved impact resistance.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: October 8, 1991
    Assignee: Industrial Technology Research Institute
    Inventors: Hsin-Ching Kao, Mao-Mong Lee, Chih-Cheng Chiang, Jen-Lien Lin, Ting-Kai Wu
  • Patent number: 5037868
    Abstract: A vulcanizable ethylene-propylene rubber composition with improved thermal aging resistance is made from ethylene-propylene rubber, an alkoxysilane such as N-(N-vinylbenzylaminoethyl)-gamma-aminopropyltrimethoxysilane or its hydrochloride, a reinforcing filler, and a vulcanizing agent. These vulcanizable ethylene-propylene rubber compositions can also contain vinyl group-containing organopolysiloxane gum. These compositions cure to rubber with excellent mechanical properties, excellent electrical insulation properties, and thermal aging resistance which makes them suitable for electrical wire insulation.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: August 6, 1991
    Assignee: Toray Silicone Company, LTD.
    Inventors: Masayuki Saito, Mitsuo Hamada
  • Patent number: 5017686
    Abstract: Aromatic polyamides having improved stability with respect to thermal oxidation are produced by adding to the reaction mixture present as a melt, a stabilizing amount, e.g., 0.05-4 mol % based on the sum total of components A and B, of a compound of Formula (I) ##STR1## wherein Q is --O--; --S--; or N--R'";R" and R'" are: --H; C.sub.1 -C.sub.6 -alkyl; or phenyl, e.g., benzimidazole.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: May 21, 1991
    Assignee: Huels Aktiengesellschaft
    Inventors: Jurgen Finke, Roland Feinauer
  • Patent number: 5001171
    Abstract: It now has been found that uncured modified rubber compositions comprising mixtures of elastomers and a reinforcing filler can be prepared having improved properties.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: March 19, 1991
    Assignee: Bridgestone/Firestone, Inc.
    Inventors: Georg G. Bohm, Daniel F. Graves
  • Patent number: 4972019
    Abstract: A water-absorbent resin composition having superior gel stability which comprises a water-absorbent resin, at least one oxygen-containing reducing inorganic salt and, optionally, at least one organic antioxidant.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: November 20, 1990
    Assignee: Seitetsu Kagaku Co., Ltd.
    Inventors: Shigeji Obayashi, Morio Nakamura, Takushi Yamamoto, Hitoshi Tanaka, Yuji Sakamoto
  • Patent number: 4946879
    Abstract: There is disclosed a reaction product of a rosin acid and a polyfunctional compound having at least one functional group capable of reacting with a carboxylic acid functionality and another functional group having antidegradant properties.The reaction products of this invention can be used as antidegradants in polymeric compositions and lubricating oil compositions.
    Type: Grant
    Filed: August 11, 1988
    Date of Patent: August 7, 1990
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson G. Wideman, Paul H. Sandstrom
  • Patent number: 4940742
    Abstract: Benzimidazolecarboxanilides of the formula (I) ##STR1## where R.sup.1 and R.sup.2 independently of one another are each hydrogen, chlorine, bromine, alkyl, alkoxy, unsubstituted or alkyl-substituted or alkoxy-substituted phenyl or phenylalkyl, R.sup.3 and R.sup.4 independently of one another are each hydrogen, alkyl, alkyl which is interrupted by one or more oxygen atoms, alkoxy, alkoxy which is interrupted by one or more oxygen atoms, unsubstituted or alkyl-substituted or alkoxy-substituted phenyl, phenylalkoxy, alkanoylamino, benzoylamino, alkanoyloxy or benzoyloxy, n is 0, 1, 2, 3, 4 or 5, X is oxygen, ##STR2## R.sup.5 is hydrogen, alkyl, phenylalkyl, cyanomethyl, aminoethyl, hydroxyethyl, alkylcarbonyl or benzoyl, R.sup.6 is hydrogen, alkyl, phenylalkyl or phennyl and m is from 2 to 8, and the acid addition salts and hydrates of these compounds are stabilizers for organic material, in particular for plastics, such as polyethylene, polypropylene and polyamide.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: July 10, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Aumueller, Peter Spang, Peter Neumann, Hubert Trauth
  • Patent number: 4935459
    Abstract: Flameproofed compositions of matter include an organic synthetic resin and, as a flame retardant therefor, an effective flameproofing amount of specified nitrogenous/halometallic compounds, certain of which are per se novel.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: June 19, 1990
    Assignee: Atochem
    Inventors: Daniel Sallet, Pierre Deloy, Valerie Mailhos-Lefievre, Pierre Poisson
  • Patent number: 4910287
    Abstract: The present disclosure is concerned with catalyzing the reactivity of carboxyl group bearing polyesters such as terephthalic acid, isophthalic acid, neophentyl glycol based polyesters which are suitable for use in powder coating formulations with epoxide compounds. An enhanced uniformity of catalysis is obtained without a degradation of color by adding 1-methyl imidazole to a liquid melt of the polyester. In a preferred embodiment between 0.03 and 0.3 weight percent of the 1-methyl imidazole is added to a molten polyester which has an acid number between 10 and 100, a 200.degree. C. I.C.I. cone and plate viscosity between 20 and 70 Poise, and a DSC determined glass transition temperature of at least about 40.degree. C. when the polyester is at a sufficiently elevated temperature to have I.C.I. plate and cone viscosity of less than about 70 Poise.
    Type: Grant
    Filed: January 6, 1989
    Date of Patent: March 20, 1990
    Assignee: Ruco Polymer Corporation
    Inventors: John J. McLafferty, Sue L. Wang
  • Patent number: 4879327
    Abstract: The invention relates to amine salts of phosphorous acid having a structure of the s-triazine, 1,2,4-triazole, benzimidazole, heptazine, pyrimidine, or piperazine type which may be combined with a polyhydroxylated compound as fireproofing agents for plastics, particularly polyamides and polyolefins, the process of fireproofing said plastics, and the resultant fireproofed plastics.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: November 7, 1989
    Assignee: Atochem
    Inventors: Pierre Poisson, Nadine Rivas, Pierre Deloy
  • Patent number: 4871787
    Abstract: A flame retardant electrical insulating composition having an antifungal action comprises 100 parts by weight of a polyolefin, 50-300 parts by weight of a metal hydroxide, and at least 0.2 parts by weight of an amine compound. Also, a flame retardant electrical insulating composition having an antifungal action comprises 100 parts by weight of an ethylene-vinyl acetate copolymer with a vinyl acetate content of at least 20 wt % or an ethylene-ethyl acrylate copolymer with an ethyl acrylate content of at least 20 wt %, 50-300 parts by weight of a metal hydroxide, at least 0.2 parts by weight of an amine compound, and at least 0.5 parts by weight of a hydroxyl group containing lubricant.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: October 3, 1989
    Assignee: Hitachi Cable Ltd.
    Inventors: Yasuaki Yamamoto, Hiroaki Tsukada, Masami Sorimachi, Akihiro Hori
  • Patent number: 4841016
    Abstract: An additive composition for enhancing curing and color clarity properties of polyester resins. The additive comprises from about 50 to 75 parts by weight of a mercaptan, and from about 50 to about 25 parts by weight of a quaternary ammonium salt. From about 0.5 to about 25 parts by weight of a polymerization initiator can be incorporated into the additive when the polyester resin is utilized as a gel coat. Resinous compositions formulated with the additive consist essentially of from about 50 to about 99.5 parts by weight of a polyester resin, from about 0.5 to about 35 parts by weight of the mercaptan, from about 0.1 to about 15 parts by weight of the quaternary ammonium salt, and a minor effective amount of an oxidizing agent for the polyester resin.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: June 20, 1989
    Inventor: Bill R. Edwards
  • Patent number: 4828964
    Abstract: A composition for use in a process for the deposition of patterned thin metal films on integrated circuit substrates, the composition comprising an admixture of a thermoplastic polyimide resin and a coumarin dye dissolved in a substituted phenol solvent. Optionally a polar solvent having a boiling point greater than 160.degree. C. and a low boiling organic compound (70.degree.-150.degree. C.) may be incorporated in the composition.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: May 9, 1989
    Assignee: International Business Machines Corporation
    Inventors: William R. Brunsvold, Willard E. Conley, Scott L. Jacobs, George L. Mack, David P. Merritt, Ann M. Uptmor
  • Patent number: 4824883
    Abstract: Polyolefin compounds having improved resistance to oxidation and heat aging attributable to the incorporation therein of the combination of a zinc salt of a mercaptoimidazole with a sterically hindered phenol, a method of enhancing oxidation resistance and heat aging stability by means of the incorporation of the combination in polyolefins, an electrical conductor insulated therewith and method of forming.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: April 25, 1989
    Assignee: Vulkor, Incorporated
    Inventors: Robert B. Walter, Edward V. Wilkus
  • Patent number: 4820757
    Abstract: Photostabilized polymers, including polyurethanes and plastics coatings, contain as photostabilizer one or more compounds of the formula ##STR1## or a novel imidazole-2-carboxanilide of the formula ##STR2##
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: April 11, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Spang, Peter Neumann, Gerhard Wagenblast, Hubert Trauth
  • Patent number: 4808643
    Abstract: EPDM and/or EPR rubber/silicone compositions having improved thermal properties, well adapted for the production of a wide variety of useful shaped articles, e.g., automotive seals, gaskets and belts, include a 2-mercapto-benzimidazole or salt thereof, preferably the zinc salt, an antioxidant comprising a secondary amine function, a diorganopolysiloxane oil, appropriate filler material and a peroxide crosslinking catalyst.
    Type: Grant
    Filed: March 30, 1988
    Date of Patent: February 28, 1989
    Assignees: Rhone-Poulenc Chimie, Compagnie de Raffinage et de Distribution Total France
    Inventors: Guy Lemoine, Robert Lucas, Meyer Soria
  • Patent number: 4798857
    Abstract: Disclosed are complexes of bismuth or antimony halides with amines having formula:R.cndot.(MeX.sub.3)y,where R is dicyandiamide, guanamine, 2-guanidinobenz-imidazole, isophoronediamine, piperazine, melamine or a compound having from 2 to 9 triazine rings condensed or linked to each other through at least one --NH-- group; Me is Bi or Sb; X is chlorine or bromine; and y is a number from 0.3 to 4. Processes for preparing the complexes and flame retardant thermoplastic polymer compositions containing the complexes are also disclosed.
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: January 17, 1989
    Assignee: HIMONT Incorporated
    Inventors: Guido Bertelli, Patrizia Busi, Renato Locatelli
  • Patent number: 4797435
    Abstract: Optionally substituted 3-benzalphthalides are effective UV stabilizers for thermoplastic aromatic polyesters, polycarbonates and polyester carbonates.
    Type: Grant
    Filed: January 12, 1987
    Date of Patent: January 10, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Scholl, Volker Serini, Dietrich Rathmann, Ross Savage, Klaus Kircher
  • Patent number: 4762870
    Abstract: It now has been found that the properties of rubber compositions comprising rubbers having an unsaturated carbon chain can be improved by including therein, a minor property-improving amount of at least one hydroxy-benzimidazole oxide compound of the formula ##STR1## wherein R is hydrogen, or a halogen, hydroxyl, lower acyl, lower hydrocarbyl, lower hydrocarbyloxy, lower hydrocarbylthio, carboxyl, cyano, amino, amide or --C(O)-- lower hydrocarbyl group, and R' is hydrogen, or a lower hydrocarbyl, lower hydrocarbyl amide, carboxamide carboxy acid, carboxy ester, or aryl group. When vulcanizates are prepared from such rubber compositions containing one or more fillers, the vulcanizates exhibit reduced low strain hysteresis and a high electrical resistivity.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: August 9, 1988
    Assignee: The Firestone Tire & Rubber Company
    Inventors: Daniel F. Graves, Hans-Wilhelm Engels
  • Patent number: 4761446
    Abstract: It now has been found that the properties of filled rubber compositions comprising rubbers having an unsaturated carbon chain can be improved by including therein, a minor property-improving amount of at least one 1,3-dihydroxy-benzimidazolinone or derivative compound of the formula ##STR1## wherein R is hydrogen, or a halogen, hydroxyl, lower hydrocarbyl, lower hydrocarbyloxy, lower hydrocarbylthio, lower hydrocarbyl nitrile, carboxyl, cyano, nitro, amino, amide or --C(O)--R'" where R'" is an aryl or a lower hydrocarbyl group; each R' independently is H, lower alkyl, acyl, CONR"2 or CONHR" where R" is alkyl or aryl. When vulcanizates are prepared from such uncured rubber compositions, the vulcanizates exhibit reduced low strain hysteresis and a high electrical resistivity.
    Type: Grant
    Filed: April 13, 1987
    Date of Patent: August 2, 1988
    Assignee: The Firestone Tire & Rubber Company
    Inventors: Daniel F. Graves, Hans-Wilhelm Engels
  • Patent number: 4759801
    Abstract: A method for preparing a pigment preparation comprising kneading a pigment presscake (comprising a pigment and water and/or one or more organic liquids) at a temperature in the range 80.degree. to 200.degree. C. under vacuum together with a thermoplastic material, thereby at the same time removing the water and/or any organic liquids present. These preparations are useful for coloring polymeric material.
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: July 26, 1988
    Assignee: Sandoz Ltd.
    Inventors: Jurgen Goldmann, Bansi L. Kaul
  • Patent number: 4741860
    Abstract: A composition comprising a chlorinated polyolefin and an optical brightener is disclosed. The compositions are useful as detectable adhesion promoters for polyolefin substrates. The compositions are applied as a coating to the polyolefin substrate and the coated substrate exposed to an ultraviolet light source to determine uniformity of the coating over the substrate. Uniform coverage is necessary to develop optimum adhesion between the substrate and a subsequently applied paint layer.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: May 3, 1988
    Assignee: PPG Industries, Inc.
    Inventor: Marvis E. Hartman
  • Patent number: 4670486
    Abstract: High molecular weight organic material is effectively colored by the incorporation therein of a copper or nickel complex of the ligand compound of formula I ##STR1## wherein A is an isocyclic or heterocyclic aromatic moiety, R is H, halogen, lower alkyl or alkoxy, R.sub.1 is H, lower alkyl, phenyl or substituted phenyl, and B is H, lower alkyl, ureido or substituted ureido, guanidino, anilino, benzamido or a heterocyclic aromatic moiety.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: June 2, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Georg Cseh, Paul Lienhard
  • Patent number: 4613636
    Abstract: A peroxide-curable fluoroelastomer composition which can be readily removed from a mold cavity without tearing which comprises a fluoroelastomer whose interpolymerized units consist essentially of units of tetrafluoroethylene, units of perfluoroalkyl perfluorovinyl ether, units of a bromine-containing olefin and, optionally, units of ethylene, and from about 0.05-2 parts per 100 parts fluoroelastomer of an N,N,N',N'-tetrasubstituted 1,8-diaminonaphthalene having the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently alkyl groups of 1-6 carbon atoms, phenyl or benzyl, R.sub.1 and R.sub.2 and/or R.sub.3 and R.sub.4 can be joined to form a 5- or 6-membered heterocyclic ring in which a carbon atom can be replaced by an oxygen or a sulfur atom, R.sub.1 and R.sub.3 and/or R.sub.2 and R.sub.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: September 23, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Leo Ojakaar
  • Patent number: 4612049
    Abstract: A corrosion-inhibiting coating composition containing(a) a film-former and(b) as the corrosion inhibitor, an effective amount of an aliphatic or cycloaliphatic mono-, di-, tri- or tetra- carboxylic acid which is substituted in its aliphatic or cycloaliphatic radical by at least one group of the formula I ##STR1## in which X is oxygen, sulfur or NH and each R independently of the others is hydrogen, alkyl, halogenoalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halogen, --CN, --NO.sub.2, --COOH, --COOalkyl, --OH or a primary, secondary or tertiary amino or carbamoyl group, R not being --NH.sub.2 in the case of a monocarboxylic acid in which X is sulfur, and also base addition salts of these compounds are useful as corrosion inhibitors.
    Type: Grant
    Filed: April 25, 1985
    Date of Patent: September 16, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Godwin Berner, William Hoyle, James Jack
  • Patent number: 4602052
    Abstract: A rubber composition containing carbon black as a reinforcing filler and a quaternary ammonium salt as a coupling agent and a method of making it are disclosed.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: July 22, 1986
    Assignee: Amoco Corporation
    Inventors: Kenneth E. Weber, Dirk Oberlin
  • Patent number: 4598105
    Abstract: A rubber composition containing carbon black and a second particulate filler of kaolin, metakaolin, talc, pyrophyllite coal, coke, graphite or metal carbonate filler and a method of making it are disclosed.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: July 1, 1986
    Assignee: Amoco Corporation
    Inventors: Kenneth E. Weber, Dirk Oberlin
  • Patent number: 4536530
    Abstract: Organophosphorus compounds having the general formula ##STR1## useful as water tree resistant additives for polymeric compositions.
    Type: Grant
    Filed: February 1, 1984
    Date of Patent: August 20, 1985
    Assignee: National Distillers and Chemical Corporation
    Inventors: Anthony Barlow, Melvin F. Maringer
  • Patent number: 4481316
    Abstract: 2-Mercaptobenzoimidazole or its water-soluble salt is added to a water-soluble acrylamide polymer containing a predominant amount of acrylamide in the molecule to inhibit degradation, especially at high temperatures, in a petroleum recovery process.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: November 6, 1984
    Assignee: Nitto Chemical Industry Co., Ltd.
    Inventors: Shoichi Kanda, Gengiro Kawamura
  • Patent number: 4448915
    Abstract: An acetylene carbamide derivative of the general formula (I): ##STR1## wherein A represents ##STR2## wherein R.sub.1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, is disclosed. A process for producing the acetylene carbamide derivative of the general formula (I) is also disclosed. The acetylene carbamide derivative of the invention is useful as a stabilizer for organic substances from heat and oxidation.
    Type: Grant
    Filed: October 19, 1982
    Date of Patent: May 15, 1984
    Assignee: Sumitomo Chemical Co., Ltd.
    Inventors: Yutaka Terada, Yukoh Takahashi, Shinichi Yachigo, Tamaki Ishii
  • Patent number: 4420577
    Abstract: Self-extinguishing polyolefin compositions consisting of:(1) from 52 to 96.55% by weight of at least one olefin polymer or copolymer;(2) from 3 to 30% by weight of a nitrogenous compound selected from amongst 1,3,5-triazines, urea and dicyandiamide;(3) from 0.3 to 3% by weight of a free-radical promoting compound selected from amongst 2,3-dimethyl-2,3-diphenylbutane and 2,3-dimethyl-2,3-diphenyl-hexane;(4) from 0.15 to 15% by weight of a compound of formula(R.sub.1 --S).sub.n R.sub.3 or (II) R.sub.2 .dbd.S, (I)wherein R.sub.1 and R.sub.2 are imidazol, uracyl, alkyleneurea or benzotriazol radicals, R.sub.3 =H, or a metal of Group II (A) or (B), or aluminum.
    Type: Grant
    Filed: April 27, 1982
    Date of Patent: December 13, 1983
    Assignee: Montedison S.p.A.
    Inventors: Guido Bertelli, Renato Locatelli
  • Patent number: 4393163
    Abstract: 2-Mercaptobenzoimidazole or its water-soluble salt is added to a water-soluble acrylamide polymer containing a predominant amount of acrylamide in the molecule to inhibit degradation, especially at high temperatures, in a petroleum recovery process.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: July 12, 1983
    Assignee: Nitto Chemical Industry, Co., Ltd.
    Inventors: Shoichi Kanda, Gengiro Kawamura
  • Patent number: 4382801
    Abstract: The invention relates to a process for spin dyeing polymers of acrylonitrile or copolymers containing predominantly acrylonitrile, which process comprises adding to the spinning solution a monocationic dye salt of the formula ##STR1## wherein D is the group of atoms necessary to close a 5-membered heterocyclic ring containing two N-atoms, or to close a 6-membered heterocyclic ring, which rings may optionally contain fused benzene rings, or is the group of atoms necessary to close a benzthiazole ring, and Q is the radical of a carbocyclic or heterocyclic aromatic coupling component, and R.sub.1 is alkyl, aralkyl or aryl. The yellowish-red transparent fibres obtained have excellent fastness properties.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: May 10, 1983
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Loew
  • Patent number: 4383063
    Abstract: Polyvinyl alcohol based sizing solution containing a small amount of quaternary (e.g., dialkyldimethyl) ammonium salt or quaternary imidazolinium salt additives provide good operability during application and weaving and results in fabric having improved finishing performance.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: May 10, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Richard W. Rees
  • Patent number: 4382112
    Abstract: Chlorinated polymers are employed within flexible wire insulation coatings to improve the insulation properties of the coating and to increase the coating's discoloration resistance.
    Type: Grant
    Filed: July 7, 1981
    Date of Patent: May 3, 1983
    Assignee: General Electric Company
    Inventors: Joseph E. Betts, Joseph E. Vostovich, Kenneth R. Curtis