Five-membered Nitrogen Ring Having Two Or More Ring Nitrogen Atoms Patents (Class 524/106)
  • Patent number: 6294012
    Abstract: Disclosed is a yellow monoazo pigment which is obtained by diazotization of anthranilic acid, coupling of the diazonium compound with 1-(3′-sulfophenyl)-3-methyl-5-pyrazolone and subsequent laking of the coupling product to a strontium salt. The pigment is characterized by the formula: The new pigment has excellent heat stability and bleed fastness and very high color strength. It is suitable for pigmenting of plastics, inks and coatings, and particularly suitable for pigmenting of plastics.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: September 25, 2001
    Assignee: Engelhard Corporation
    Inventor: Amrit P. Bindra
  • Publication number: 20010023265
    Abstract: A water-based ink comprising (A) a coloring material; and (B) an aqueous dispersion of polymer particles comprising a water-insoluble graft copolymer having an acrylic polymer side chain (P) and a salt-formiing group (Q), wherein the acrylic polymer side chain (P) is a polymer made of at least one monomer represented by the formula (1):
    Type: Application
    Filed: December 28, 2000
    Publication date: September 20, 2001
    Inventors: Yuki Hidaka, Takehiro Tsutsumi
  • Patent number: 6281284
    Abstract: An organopolysiloxane composition comprising (A) an organopolysiloxane, (B) a silane compound having at least two hydrolyzable groups or a partial hydrolyzate thereof, and (C) an antibacterial agent based on a ferrous compound, typically FeSO4 is antibacterial, mildew resistant, resistant to heat, resistant to weather, and safe.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: August 28, 2001
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takafumi Sakamoto, Tokuo Sato
  • Patent number: 6262156
    Abstract: This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain cyclic urea compounds of the structure where R is a C6 to C12 alkyl group or R″O—(CH2)m—, R′ is hydrogen or methyl, R″ is a C4 to C12 alkyl group, m is 2-4 and n is 1 or 2.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: July 17, 2001
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John Anthony Marsella, Kevin Rodney Lassila
  • Publication number: 20010005730
    Abstract: A polyamic acid varnish composition, which is composed of a polyamic acid obtained by the addition polymerization of an diamine and an aromatic acid dianhydride, contains as an additive a specific imidazolyl-diaminoazine.
    Type: Application
    Filed: December 7, 2000
    Publication date: June 28, 2001
    Applicant: SONY CHEMICALS CORP.
    Inventors: Noriaki Kudo, Minoru Nagashima
  • Patent number: 6231936
    Abstract: Provided are articles such as packaging materials and medical devices having enhanced tolerance to radiation and heat, produced from a blend of from about 99% to about 50% by weight homo or copolymerized polypropylene and about 1% to about 50% by weight polyethylene produced by single-site catalysis, such polyethylene having a MWD between about 1 and about 4, and a CDBI greater than about 45%. Optionally, other blend components may be added, such as hindered amine stabilizers, secondary antioxidants, clarifying nucleators and secondary antioxidants. Also provided are processes for producing such articles.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: May 15, 2001
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: ReneƩ A. Kozimor, Robert C. Portnoy
  • Patent number: 6179906
    Abstract: This invention provides water-based compositions, particularly coating, ink, and agricultural compositions, manifesting reduced equilibrium and dynamic surface tension by the incorporation of a surface tension reducing amount of certain cyclic urea compounds of the structure where R is a C6 to C12 alkyl group or R″O—(CH2)m—, R′ is hydrogen or methyl, R″ is a C4 to C12 alkyl group, m is 2-4 and n is 1 or 2.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: January 30, 2001
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John Anthony Marsella, Kevin Rodney Lassila
  • Patent number: 6168895
    Abstract: Azo pigment of the formula (1) which has a specific surface area of the pigment powder of more than 45 m2/g. The azo pigment is particularly suitable as colorant in electrophotographic toners and devlopers, and in powder coatings and electret materials.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: January 2, 2001
    Assignee: Clariant GmbH
    Inventors: Hans Joachim Metz, R{umlaut over (u)}diger Baur, Hans-Tobias Macholdt
  • Patent number: 6121298
    Abstract: An antibacterial and mildewproofing organopolysiloxane composition comprising (A) an organopolysiloxane such as polydimethylsiloxane terminated with silanol groups or polydimethylsiloxane terminated with trimethylsiloxyl groups, (B) a hydrolyzable silane compound and/or a partial hydrolysis-condensation product thereof, (C) a triazolyl-group-containing compound such as tebuconazole and (D) an inorganic antibacterial agent comprising an inorganic substance comprising zeolite, apatite and/or silica and supporting or containing silver and/or silver ions.This composition is superior in antibacterial properties, mildew resistance and permanence of mildew resistance and also superior in weatherability such as heat resistance and ultraviolet light resistance, may cause less change in color, and is useful as a sealing medium.
    Type: Grant
    Filed: January 14, 1999
    Date of Patent: September 19, 2000
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takafumi Sakamoto, Tokuo Sato
  • Patent number: 6063843
    Abstract: Disclosed is a process for stabilizing polyamides against the damage effected by light, heat and/or oxidation while improving the differential dyeability, and processing stability therefore, comprising incorporating therein by melt-processing a synergistic additive system resulting in a uniform and intimate mixture with said polyamide, said additive system is selected from the group consisting of (I), (II) and (III)(I) is from 0.01% to 1% by weight of a sterically hindered phenylphosphonite (Ia) with from 0.05% to 5% by weight of oxanilide (Ib) or said (Ia) together with from 0.05% to 5% by weight of an aromatic di- or tri-carbonyl compound containing at least one, and preferably two hindered amine moieties (Ic);(II) is from 0.05% to 5% by weight of oxanilide (IIa) together with from 0.05% to 5% by weight of a aromatic di- or tri-carbonyl compound (IIb) containing at least one hindered amine moieties;(III) is from 0.01% to 1% by weight of a sterically hindered phenyl phosphonite (Ia), from 0.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: May 16, 2000
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Mohamed Sidqi, Klaus Stoll, Jan Malik, Joseph Reni Webster
  • Patent number: 6043309
    Abstract: A curable liquid silicone rubber composition for use in high-voltage electrical insulating parts, which consists of (A) a polyorganosiloxane containing alkenyl groups, (B) fumed silica, (C) a polyorganohydriodosiloxane, (D) a platinum catalyst, (E) finely powdered aluminum hydroxide, and (F) 1 to 150 parts by weight of a finely powdered metal compound selected from the group consisting of finely powdered carbonate or finely powdered hydrogen salt of a metal selected from the 1st, 2nd, 3rd, 7th, or 9th group of the periodic table.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: March 28, 2000
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Akito Nakamura, Yasumichi Shigehisa, Yuichi Tsuji
  • Patent number: 6008290
    Abstract: A room temperature curable mildew resistant organopolysiloxane composition comprises (A) a hydroxyl or hydrolyzable group-containing organopolysiloxane, (B) a hydrolyzable organosilane such as methyltrimethoxysilane, methyltris(methylethylketoxime silane) or vinyltris(methylethylketoxime silane), a partially hydrolyzed product thereof or a mixture of the hydrolyzable organosilane with the partially hydrolyzed product thereof; and (C) a triazolyl group-containing compound such as 2-(4-chlorophenyl)ethyl-.alpha.-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-yl -ethanol. Preferably, the component (B) does not contain aliphatic unsaturation in the molecule, and in this case, the component (B) free of aliphatic unsaturation is used in combination with (B') a hydrolyzable silane such as tetrakis(dimethylketoxime)silane, a partially hydrolyzed product thereof or a mixture of the hydrolyzable silane and the partially hydrolyzed product thereof.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: December 28, 1999
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kei Miyoshi, Tokuo Sato, Yoshio Inoue
  • Patent number: 5997628
    Abstract: Disclosed are red shade yellow compositions characterized by the formula: ##STR1## wherein X is a lower alkyl or a --COOR.sub.1 group; wherein R.sub.1 is a hydrogen or lower alkyl group; each Y is independently a lower alkyl, lower alkyloxy or halogen group; a is 0, 1, or 2; and M is a divalent metal. Also disclosed is a process for preparing red shade yellow pigment compositions prepared by initially a diazonium component comprised of one or more aromatic amines wherein at least one of said amines is a 1-sulfo-2-naphthylamine; and thereafter coupling the diazonium component with a coupling component comprised of a pyrazolone coupler to form a dye, and metallizing said dye with at least one divalent metal.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: December 7, 1999
    Assignee: Engelhard Corporation
    Inventor: Amrit Pal Bindra
  • Patent number: 5942571
    Abstract: A liquid silicone rubber composition for use in high-voltage eletrical insulating parts comprising (A) a polyorganosiloxane containing alkenyl groups, (B) fumed silica, (C) a polyorganohydridosiloxane, (D) a platinum type catalyst, (E) finely powdered aluminum hydroxide, and (F) a powdered metal compound selected from the group consisting of powdered zinc oxidc, powdered zinc borate, and powdered magnesium hydroxide and a method for manufacturing such a composition.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: August 24, 1999
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Akito Nakamura, Yasumichi Shigehisa, Yuichi Tsuji
  • Patent number: 5932678
    Abstract: The present invention relates to mixtures, containing A) reaction products from isocyanates and NCO-reactive silanes and B) carbosilane dendrimers, a process for preparing powder coatings from the mixtures and their use.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: August 3, 1999
    Assignee: Bayer AG
    Inventors: Helmut-Martin Meier, Michael Mager, Karsten Dierksen, Knud Reuter
  • Patent number: 5922792
    Abstract: The present invention relates to rubber compounds containing a sulfur containing bis-succinimide of the formula: wherein R is selected from the group consisting of hydrogen and alkyls having from 1 to 18 carbon atoms and x is an integer of from 1 to 8.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: July 13, 1999
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Lawson Gibson Wideman, Paul Harry Sandstrom
  • Patent number: 5907005
    Abstract: A varnish composition suitable for producing a liquid crystal aligning film having a thickness of several tens to one hundred nanometers having 1 to 10% by weight of polyamic acid or soluble polyimide, and 90 to 99% by weight of a solvent which comprises 5 to 80% by weight of at least one compound selected from a group of solvent components A and 20 to 95% by weight of at least one compound selected from a group consisting of component B and component C where the group of solvent components A consists of N-methyl-2-pyrrolidone and dimethylimidazolidinone and the component B is alkyl lactate, and the component C isR.sub.1-O(C.sub.3H.sub.6 O).sub.nH (I)where n is 1 or 2, R.sub.1 is an alkyl group having 4 carbon atoms when n is 1, and R.sub.1 is an alkyl group having 1 to 4 carbon atoms when n is 2, is disclosed.
    Type: Grant
    Filed: April 28, 1997
    Date of Patent: May 25, 1999
    Assignee: Chisso Corporation
    Inventor: Itsuo Shimizu
  • Patent number: 5883163
    Abstract: A light conducting plate for back lighting which comprises a methacrylic copolymer resin comprising 90 to 99.5% by weight of a methyl methacrylate unit and 0.5 to 10% by weight of an alkyl acrylate unit containing 1 to 8 carbon atoms in the alkyl moiety thereof and having a reduced viscosity of 35 to 60 ml/g in chloroform, the chromaticity of said light conducting plate having x and y color coordinates both ranging from 0.01 to 0.001 as obtained according to JIS-Z-8701.
    Type: Grant
    Filed: August 19, 1997
    Date of Patent: March 16, 1999
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventor: Nobuyuki Hosonuma
  • Patent number: 5880199
    Abstract: A liquid silicone rubber composition that prior to its cure has a suitable fluidity and excellent moldability and that cures into a highly flame retardant silicone rubber molding with excellent electrical properties. The liquid silicone rubber composition comprises(A) polyorganosiloxane,(B) microparticulate silica,(C) aluminum hydroxide powder,(D) zinc carbonate powder,(E) polyorganohydrogensiloxane,(F) benzotriazole,(G) the reaction mixture of(a) a platinum compound and(b) 3,5-dimethyl-1-hexyn-3-ol, and(H) hydrosilylation reaction catalyst.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: March 9, 1999
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Takao Matsushita, Yasumichi Shigehisa, Yuichi Tsuji
  • Patent number: 5746814
    Abstract: Disclosed is a curl preventing/minimizing fluid composition containing a hydrophilic solvent, a polymeric binder, a water soluble/dispersible paper desizing agent, a water soluble/dispersible paper anticurl agent, a defoamer, a biocide, an antistatic agent, a lightfastness promoting agent, and a filler.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: May 5, 1998
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Diane M. Foley
  • Patent number: 5741837
    Abstract: A syndiotactic polystyrene composition is improved which exhibits improved crystallization rate. The improved syndiotactic polystyrene composition contains (a) a syndiotactic polystyrene; and (b) a nucleating agent which is selected from the group consisting of two types of compounds represented by the following formulas, respectively: ##STR1## In Formulas I and II, the radicals R.sub.1 and R.sub.2, which can be the same of different, are C.sub.1 to C.sub.5 alkyl groups, X is a halogen group, preferably a bromide group, and n is an integer from 1 to 5. In the present invention, the nucleating agent is provided at 0.01 to 5 part, by weight, per 100 parts, also by weight, of the syndiotactic polystyrene resin. An example of Formula I compound is 2-hydroxybenimidiazole, and an example of the Formula II compound is bis(phenylbromide) methane.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: April 21, 1998
    Assignee: Industrial Technology Research Institute
    Inventors: Chung-Jen Wu, Chien-Ming Chen, Hsien-Ming Chen, Hurng-Rern Lee
  • Patent number: 5736598
    Abstract: A thermoplastic molding composition which includes a thermoplastic polymer andA) a dye which is soluble therein, andB) a N,N-bis (2-hydroxyethyl )-C.sub.6 -C.sub.22 -alkylamine or N,N-bis (2-hydroxyethyl) -C.sub.6 -C.sub.22 -alkenylamine, this compound having a Hazen color number as specified in German Standards Specification DIN 53409 of below 300.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: April 7, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Fischer, Karl Hennig, Norbert Mosbach, Rainer Neumann, Bernd Niedermaier
  • Patent number: 5684141
    Abstract: Aminated cellulosic synthetic fibers are produced by adding an amine-substituted cellulose derivative to a viscose or an alkali cellulose and spinning fibers by the viscose spinning process, or by adding said cellulose derivative to a cellulose solution and spinning fibers from said solution.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: November 4, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Schrell, Werner Hubert Russ, Bernd Huber
  • Patent number: 5646207
    Abstract: An aqueous sizing composition for glass fibers particularly useful for the reinforcement of thermoplastic or thermosetting matrix polymers contains film-forming material, fluorescent whitening agent, coupling agent, stabilizing agent and lubricant. The film-forming material is selected to be compatible with thermosetting or thermoplastic matrix polymer used in the ultimate forming process. The fluorescent whitening agent is at least dispersed, emulsified or solubilized in water.The sizing compositions are particularly advantageous for sizing glass fibers to be used in the reinforcement of matrix polymers for forming molded parts. The resultant molded part exhibits exceptional whiteness and and comparable physical properties to materials without the brightening agent.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: July 8, 1997
    Assignee: PPG Industries, Inc.
    Inventor: Philip L. Schell
  • Patent number: 5637262
    Abstract: Described are novel reversible photochromic 3H-naphtho[2,1-b]pyran compounds, of the following graphic formula: ##STR1## wherein R.sub.1 is hydrogen or alkyl, R.sub.2 is hydrogen or preferably a carboalkoxy group and R.sub.3 is hydrogen or preferably an alkyl group, provided that either R.sub.1 or R.sub.2 is hydrogen, and B and B' are the aryl groups phenyl or naphthyl, a heterocyclic aromatic group or together form a spiro adamantylene group. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(oxazine) type compounds, are also described.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: June 10, 1997
    Assignee: Transitions Optical, Inc.
    Inventors: Barry Van Gemert, Anil Kumar
  • Patent number: 5552090
    Abstract: Described are novel reversible photochromic naphthopyran compounds, examples of which are compounds substituted at the 3 position of the pyran ring with (i) an aryl substituent and (ii) a phenyl substituent having a 5- or 6-member heterocyclic ring fused at the number 3 and 4 carbon atoms of the phenyl substituent, and at the 6 position of the naphthyl portion of the naphthopyran compound with a nitrogen-containing heterocyclic ring. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.
    Type: Grant
    Filed: December 20, 1994
    Date of Patent: September 3, 1996
    Assignee: PPG Industries, Inc.
    Inventors: Barry Van Gemert, David B. Knowles
  • Patent number: 5476923
    Abstract: Compounds of the formula ##STR1## wherein each R.sub.1 is independently hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy or nitro,R.sub.2 is hydrogen or halo,R.sub.3 is halo, andMe is a divalent metal,useful for pigmenting polymeric materials such as polyethylene, polyvinyl chloride, polystyrene, natural rubber and synthetic rubber, for the mass pigmentation of materials such as cellulose acetate and for pigmenting paper, lacquers, paints, printing inks and textile coatings.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: December 19, 1995
    Assignee: Sandoz Ltd.
    Inventors: Jurgen Goldmann, Bansi L. Kaul
  • Patent number: 5457143
    Abstract: The present invention relates to synergistic mixtures for stabilising polymeric organic materials against light, heat and oxidation; said synergistic mixtures contain sterically hindered cyclic amines and particular derivatives of 3-pyrazolidinone or 1,2,4-triazolidine-3,5-dione. In addition, the present invention relates to some new derivatives of 3-pyrazolidinone or 1,2,4-triazolidine-3,5-dione.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: October 10, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Roberto Scrima, Giampiero Vessa
  • Patent number: 5407982
    Abstract: It is herein disclosed a process for stabilizing freshly prepared polyketone polymer comprising contacting the polymer with a sufficient quantity of a stabilizing agent such as an alkali metal iodide salt or an onium iodide salt of nitrogen, phosphorus, or arsenic in which the organic groups comprising the cation coordination sphere is shielded by aromatic substituents. The inventive process results in stabilized polyketone polymers having and exhibiting improved thermal oxidative stability properties. It is also disclosed a stabilized polymer composition comprising a major amount of a polyketone polymer and a minor amount of an onium iodide salt of nitrogen, phosphorus, arsenic or combination thereof in which the cation coordination sphere is shielded by aromatic substituents.
    Type: Grant
    Filed: November 19, 1993
    Date of Patent: April 18, 1995
    Assignee: Shell Oil Company
    Inventor: Carlton E. Ash
  • Patent number: 5371126
    Abstract: Aqueous compositions and process aids useful in paper processing for quenching optical brighteners, particularly under alkaline paper production conditions. The process aids are aqueous compositions comprising (a) an acid addition salt or quartenization product of a cyclic amidine, (b) a polyethyleneimine and optionally (c) an acid. The aqueous compositions and process aids may be added to paper feedstocks in paper production apparatus or to paper production apparatus absent a paper feedstock.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: December 6, 1994
    Assignee: Sandoz Ltd.
    Inventor: Ralph H. Strickler
  • Patent number: 5283271
    Abstract: A compound selected from the group consisting of 3,5-diphenyl- and substituted 3,5-diphenyl-1-hydroxy-1,2-dihydroimidazole-2-thiones, and combinations thereof. Also disclosed is a process for producing the compound and an antimicrobial composition comprising the compound and at least one component selected from the group consisting of soaps, shampoos, skin care medicaments, cosmetics and paints.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: February 1, 1994
    Assignee: Olin Corporation
    Inventors: Derek H. R. Barton, Catherine Tachdjian
  • Patent number: 5270364
    Abstract: Metallic fillers are provided which are stabilized against corrosion. The metallic fillers are stabilized by treating the surface of the filler particles wtih a triazole, preferably an aromatic triazole. This may be accomplished either by pretreating the filler with a solution of the triazole, or by adding the triazole to a polymeric composition containing a metallic filler.Polymeric compositions are further provided, e.g. compositions for microwave absorption, comprising a polymeric binder, a metallic filler and a triazole.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: December 14, 1993
    Assignee: Chomerics, Inc.
    Inventors: Kenneth K. Schwartz, Michael T. Kocsik
  • Patent number: 5260377
    Abstract: Crosslinkable carbosilane polymer formulations are prepared from saturated or unsaturated carbosilane polymers containing reactive silicon hydride radicals in the polymer chain combined with polycyclic polyene crosslinkers having two or more double bonds that are reactive in the hydrosilation crosslinking reaction.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: November 9, 1993
    Assignees: University of Southern California, Hercules Incorporated
    Inventors: William P. Weber, Raymond T. Leibfried, Xiugao Liao
  • Patent number: 5260361
    Abstract: Disclosed is a coating composition comprising (A) 10 to 70 parts by weight of a poly(meth)acrylate of mono- or polypentaerythritol, (B) 5 to 50 parts by weight of a urethane poly(meth)acrylate having at least two unsaturated double bonds in the molecule, (C) 5 to 50 parts by weight of a poly[(meth)acryloyloxyalkyl] (iso)cyanurate, (D) 2 to 30 parts by weight of an ultraviolet absorber, (E) 0.1 to 10 parts by weight of a photopolymerization initiator, and (F) 0.1 to 5 parts by weight of a hindered amine type light stabilizer, provided that the combined amount of components (A) to (F) is 100 parts by weight. This coating composition can form a crosslinked and cured film having excellent abrasion resistance, surface smoothness, thermal resistance, chemical resistance, durability, weather resistance and adhesion to the substrate.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: November 9, 1993
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroshi Fukushima, Misao Tamura, Osamu Takemoto, Takaji Kawaguchi
  • Patent number: 5216098
    Abstract: The present invention provides crosslinked ampholytic copolymers that are highly absorbent to aqueous electrolyte solutions.
    Type: Grant
    Filed: July 21, 1992
    Date of Patent: June 1, 1993
    Assignee: Phillips Petroleum Company
    Inventors: Iqbal Ahmed, Henry L. Hsieh
  • Patent number: 5210118
    Abstract: The present invention relates to a novel method for stabilizing synthetic thermoplastic materials against thermal degradation, which comprises incorporating in said materials one or more compounds of the formula (I) ##STR1## in which R.sub.1 is unsubstituted or substituted phenyl, n is e.g. 1, 2 or 3, and, when n is 1, R.sub.2 is e.g. --COR.sub.3, --COOR.sub.4 or --CO-N(R.sub.5)R.sub.6 in which R.sub.3 is e.g. C.sub.4 -C.sub.17 alkyl, R.sub.4 is e.g. C.sub.4 -C.sub.18 alkyl, cyclohexyl or t-butylcyclohexyl, R.sub.5 and R.sub.6 which can be identical or different are e.g. C.sub.2 -C.sub.8 alkyl or cyclohexyl, and, when n is 2, R.sub.2 is e.g. --CO--R.sub.10 --OC, --COO-R.sub.11 --OOC-- or --CONH--R.sub.12 --NHCO- in which R.sub.10 is e.g. C.sub.2 -C.sub.8 alkylene, R.sub.11 is e.g. C.sub.4 -C.sub.6 alkylene and R.sub.12 is e.g. C.sub.4 -C.sub.6 alkylene, and, when n is 3, R.sub.2 is e.g. benzenetricarbonyl.Several compounds of the formula (I) are new.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: May 11, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Roberto Scrima
  • Patent number: 5196465
    Abstract: The present invention relates to polymeric thermoplastic materials stabilized against thermal degradation by means of using one or more compounds of the formula (I) ##STR1## in which R.sub.1 is e.g. C.sub.1 -C.sub.4 alkyl or phenyl and n is e.g. 1 or 2 and, when n is 1, R.sub.2 is e.g. C.sub.1 -C.sub.4 alkyl, phenyl or cyclohexyl, and, when n is 2, R.sub.2 is e.g. C.sub.2 -C.sub.6 alkylene, methylenedicyclohexylene, a group ##STR2## methylphenylene or methylenediphenylene.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: March 23, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Roberto Scrima, Graziano Zagnoni, Valerio Borzatta
  • Patent number: 5155151
    Abstract: A thermoplastic resin composition having improved heat stability which comprises a thermoplastic resin which contains at least 5% by weight of an .alpha.-alkyl-substituted aromatic copolymer comprising .alpha.-alkyl-substituted aromatic vinyl compound and at least one other comonomer copolymerizable therewith, wherein the composition contains a metal-deactivating agent which has a molecular weight of not more than 2,000 and at least one group of the formula: ##STR1## or an organometallic colorant containing free metal in an amount of not more than 2,000 ppm, from which a molded article having no or less silver streaks can be produced.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: October 13, 1992
    Assignee: Sumitomo Naugatuck Co., Ltd.
    Inventors: Kenji Hashimoto, Syuzi Takahashi, Hiroyuki Minematsu
  • Patent number: 5143954
    Abstract: A low-formaldehyde polymer latex composition includes a formaldehyde-scavenging agent selected froma) a compound having the formula ##STR1## wherein A is selected from O, NH, and NR.sup.2 ; R.sup.1 is selected from H, 3-allyloxy-2-hydroxypropyl, methacryloyl, acryloyl and methacryloxyaceto; and R.sup.2 is 3-allyloxy-2-hydroxypropyl when R' is 3-allyloxy-2-hydroxypropyl;b) a compound having the formula R.sup.3 CH.sub.2 R.sup.4, whereinR.sup.3 and R.sup.4 are both --C(O)OR.sup.5 ;R.sup.3 is CH.sub.3 C(O)-- and R.sup.4 is --C(O)OR.sup.5 ;R.sup.3 is --CN and R.sup.4 is selected from --C(O)NH.sub.2 and --C(O)OR.sup.5 ; orR.sup.3 is CH.sub.3 C(O)-- and R.sup.4 is --C(O)OCH.sub.2 CH.sub.2 OC(O)C(CH.sub.3).dbd.CH.sub.2 ; andR.sup.5 is a C.sub.1 -C.sub.6 hydrocarbon radical;c) a compound having the formulaNCCH.sub.2 C(O)OCH.sub.2 --CH--(CH.sub.2 CH.sub.2 OC(O)CH.sub.2 CN).sub.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: September 1, 1992
    Assignee: Rohm and Haas Company
    Inventors: Thomas W. Hutton, Ronald W. Novak
  • 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: 5130391
    Abstract: The present invention provides crosslinked ampholytic copolymers that are highly absorbent to aqueous electrolyte solutions.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: July 14, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Iqbal Ahmed, Henry L. Hsiehp
  • Patent number: 5130198
    Abstract: Polymeric-containing compositions having improved oxidative stability have the polymer and at least two stabilizing agents. These agents are selected from low temperature antioxidants such as alkali metal and alkaline earth metal hypo or hydrogen phosphites, high temperature antioxidants such as: alkali metal or alkaline earth metal phenylphosphonates, thioethers like dialkyl thioalkylionate and polymers thereof and metal deactivating agents like polydentate ligands and ethylene diamine-tetracidic acid compounds. The composition can be a coating composition for substrates including those like fibrous material including fibers, bundles of fibers, strands, roving, flakes and beads. The composition can be present as a dried residue on the substrate. For fibrous substrates, the composition also has at least one organofunctional silane coupling agent, may also have processing aids such as epoxy polyester polymers and/or lubricants.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: July 14, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Robert G. Swisher, Peter C. Gaa, James W. Kasunic
  • Patent number: 5110887
    Abstract: The present invention provides an article of manufacture which contains a crosslinked ampolytic copolymer that is highly absorbent to aqueous electrolyte solutions.
    Type: Grant
    Filed: September 18, 1991
    Date of Patent: May 5, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Henry L. Hsieh, Iqbal Ahmed
  • Patent number: 5110851
    Abstract: The instant invention is directed to a method for preparing free-flowing, water-soluble polymer gels comprising:(a) reducing the size of water-soluble polymer gels by a size-reduction means, so as to produce polymer gel particles which are less than 1/2 inch in their longest dimension; and(b) adding to the size-reduced polymer gels of Step (a) 0.001 to 20 percent, by weight, of an amphipathic compound, thereby reducing the adhesion of said gel particles to themselves and other substances.The instant invention is also directed to a free-flowing, water-soluble polymer gel admixture comprising:(a) size-reduced, water-soluble polymer gel particles, wherein said gel particles are less than 1/2 inch in their longest dimension; and(b) an amphipathic compound.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: May 5, 1992
    Assignee: Calgon Corporation
    Inventors: Wood E. Hunter, Gary P. Craun
  • Patent number: 5104919
    Abstract: A curable silicon composition comprising:(A) an organopolysiloxane containing at least two silicon-bonded unsaturated aliphatic hydrocarbon groups and having a viscosity of from 100 to 200,000 cSt at 25.degree. C.,(B) a vinyl group-containing organocyclopolysiloxane having the general formula (I): ##STR1## wherein R represents a hydrocarbon group having from 1 to 6 carbon atoms excluding unsaturated aliphatic hydrocarbon groups, and n represents an integer of from 3 to 8,(C) an organohydrogenpolysiloxane containing at least two silicon-bonded hydrogen atoms in the molecule,(D) a platinum family metal catalyst, and(E) a triazole compound.This curable silicone composition has good curing properties and can produce cured products having a markedly small permanent compression set.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: April 14, 1992
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takehide Okami, Masanobu Miyakoshi, Hajime Kiriki
  • Patent number: 5098970
    Abstract: The present invention provides crosslinked ampolytic copolymers that are highly absorbent to aqueous electrolyte solutions.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: March 24, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Henry L. Hsieh, Iqbal Ahmed
  • Patent number: 5096951
    Abstract: A polyoxymethylene molding composition which exhibits improved ambient and heat aged color stability includes a metal deactivator and calcium hydroxystearate. One preferred composition of the invention includes: (a) greater than about 95 weight percent of polyoxymethylene, (b) between about 0.01 to about 0.1 weight percent of 3 salicyloyl-amido-1,2,4 triazole or tris-2-tert.butyl- 4-thio-(2'methyl-4'hydroxy-5'tert.butyl) phenyl-5-methyl phenyl phosphite, (c) between about 0.015 to about 0.4 weight percent of 2,4,6-triamino-sym-triazine, (d) between about 0.25 to about 1.0 weight percent of tetrakis(methylene-(3,5-di-tert-butyl- 4-hydroxyhydrocinnamate)) methane, (e) between about 0.05 to about 0.2 weight percent of calcium 12-hydroxystearate, and (f) between about 0.1 to about 0.3 weight percent of N-N'-ethylenebisstearamide. Due to their enhanced color stability, the compositions of this invention find particular utility as molded automobile components.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: March 17, 1992
    Assignee: Hoechst Celanese Corporation
    Inventor: Andrew Auerbach
  • Patent number: 5086092
    Abstract: Heat-curable aqueous coating agents for cathodic electrocoating contain(A) an amino-containing polymerization, polycondensation or polyaddition product as a binder which becomes water-dilutable on protonation with an acid,(B) a crosslinking agent and(C) from 0.05 to 10% by weight, based on components (A) and (B), of a monomeric organic complexing agent.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: February 4, 1992
    Assignee: BASF Lacke+Farben Aktiengesellschaft
    Inventors: Hans Schupp, Thomas Schwerzel, Dirk Lawrenz, Hans-Josef Oslowski, Ulrich Heimann
  • Patent number: 5079285
    Abstract: Improved thermal stability is demonstrated by stabilized compositions comprising a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon having incorporated therein a stabilizing quantity of a substituted pyrazolinone.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: January 7, 1992
    Assignee: Shell Oil Company
    Inventor: Robert Q. Kluttz
  • Patent number: 5037858
    Abstract: This invention is directed to producing highly concentrated solutions of methylenebisacrylamide and thereafter blending with ionogeneous acrylic monomers to produce low porosity, highly crosslinked, water insoluble polymers for use as anion selective resins and membranes.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: August 6, 1991
    Assignee: Ionics, Incorporated
    Inventor: Russell J. MacDonald