Five-membered Nitrogen Ring Having Two Or More Ring Nitrogen Atoms Patents (Class 524/106)
-
Patent number: 6294012Abstract: 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: GrantFiled: November 15, 1999Date of Patent: September 25, 2001Assignee: Engelhard CorporationInventor: Amrit P. Bindra
-
Publication number: 20010023265Abstract: 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: ApplicationFiled: December 28, 2000Publication date: September 20, 2001Inventors: Yuki Hidaka, Takehiro Tsutsumi
-
Patent number: 6281284Abstract: 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: GrantFiled: March 10, 2000Date of Patent: August 28, 2001Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takafumi Sakamoto, Tokuo Sato
-
Patent number: 6262156Abstract: 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: GrantFiled: June 21, 1999Date of Patent: July 17, 2001Assignee: Air Products and Chemicals, Inc.Inventors: John Anthony Marsella, Kevin Rodney Lassila
-
Publication number: 20010005730Abstract: 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: ApplicationFiled: December 7, 2000Publication date: June 28, 2001Applicant: SONY CHEMICALS CORP.Inventors: Noriaki Kudo, Minoru Nagashima
-
Patent number: 6231936Abstract: 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: GrantFiled: May 9, 1997Date of Patent: May 15, 2001Assignee: Exxon Chemical Patents, Inc.Inventors: ReneƩ A. Kozimor, Robert C. Portnoy
-
Patent number: 6179906Abstract: 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: GrantFiled: June 21, 1999Date of Patent: January 30, 2001Assignee: Air Products and Chemicals, Inc.Inventors: John Anthony Marsella, Kevin Rodney Lassila
-
Patent number: 6168895Abstract: 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: GrantFiled: June 17, 1997Date of Patent: January 2, 2001Assignee: Clariant GmbHInventors: Hans Joachim Metz, R{umlaut over (u)}diger Baur, Hans-Tobias Macholdt
-
Patent number: 6121298Abstract: 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: GrantFiled: January 14, 1999Date of Patent: September 19, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takafumi Sakamoto, Tokuo Sato
-
Patent number: 6063843Abstract: 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: GrantFiled: August 24, 1998Date of Patent: May 16, 2000Assignee: Clariant Finance (BVI) LimitedInventors: Mohamed Sidqi, Klaus Stoll, Jan Malik, Joseph Reni Webster
-
Patent number: 6043309Abstract: 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: GrantFiled: January 28, 1998Date of Patent: March 28, 2000Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Akito Nakamura, Yasumichi Shigehisa, Yuichi Tsuji
-
Patent number: 6008290Abstract: 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: GrantFiled: February 16, 1996Date of Patent: December 28, 1999Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kei Miyoshi, Tokuo Sato, Yoshio Inoue
-
Patent number: 5997628Abstract: 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: GrantFiled: June 8, 1998Date of Patent: December 7, 1999Assignee: Engelhard CorporationInventor: Amrit Pal Bindra
-
Patent number: 5942571Abstract: 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: GrantFiled: January 28, 1998Date of Patent: August 24, 1999Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Akito Nakamura, Yasumichi Shigehisa, Yuichi Tsuji
-
Patent number: 5932678Abstract: 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: GrantFiled: March 11, 1997Date of Patent: August 3, 1999Assignee: Bayer AGInventors: Helmut-Martin Meier, Michael Mager, Karsten Dierksen, Knud Reuter
-
Patent number: 5922792Abstract: 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: GrantFiled: January 13, 1998Date of Patent: July 13, 1999Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Paul Harry Sandstrom
-
Patent number: 5907005Abstract: 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: GrantFiled: April 28, 1997Date of Patent: May 25, 1999Assignee: Chisso CorporationInventor: Itsuo Shimizu
-
Patent number: 5883163Abstract: 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: GrantFiled: August 19, 1997Date of Patent: March 16, 1999Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventor: Nobuyuki Hosonuma
-
Patent number: 5880199Abstract: 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: GrantFiled: May 22, 1997Date of Patent: March 9, 1999Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Takao Matsushita, Yasumichi Shigehisa, Yuichi Tsuji
-
Patent number: 5746814Abstract: 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: GrantFiled: May 7, 1997Date of Patent: May 5, 1998Assignee: Xerox CorporationInventors: Shadi L. Malhotra, Diane M. Foley
-
Patent number: 5741837Abstract: 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: GrantFiled: March 27, 1997Date of Patent: April 21, 1998Assignee: Industrial Technology Research InstituteInventors: Chung-Jen Wu, Chien-Ming Chen, Hsien-Ming Chen, Hurng-Rern Lee
-
Patent number: 5736598Abstract: 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: GrantFiled: January 23, 1996Date of Patent: April 7, 1998Assignee: BASF AktiengesellschaftInventors: Wolfgang Fischer, Karl Hennig, Norbert Mosbach, Rainer Neumann, Bernd Niedermaier
-
Patent number: 5684141Abstract: 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: GrantFiled: January 26, 1995Date of Patent: November 4, 1997Assignee: Hoechst AktiengesellschaftInventors: Andreas Schrell, Werner Hubert Russ, Bernd Huber
-
Patent number: 5646207Abstract: 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: GrantFiled: February 15, 1995Date of Patent: July 8, 1997Assignee: PPG Industries, Inc.Inventor: Philip L. Schell
-
Patent number: 5637262Abstract: 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: GrantFiled: May 31, 1995Date of Patent: June 10, 1997Assignee: Transitions Optical, Inc.Inventors: Barry Van Gemert, Anil Kumar
-
Patent number: 5552090Abstract: 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: GrantFiled: December 20, 1994Date of Patent: September 3, 1996Assignee: PPG Industries, Inc.Inventors: Barry Van Gemert, David B. Knowles
-
Patent number: 5476923Abstract: 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: GrantFiled: March 31, 1994Date of Patent: December 19, 1995Assignee: Sandoz Ltd.Inventors: Jurgen Goldmann, Bansi L. Kaul
-
Patent number: 5457143Abstract: 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: GrantFiled: March 28, 1994Date of Patent: October 10, 1995Assignee: Ciba-Geigy CorporationInventors: Roberto Scrima, Giampiero Vessa
-
Patent number: 5407982Abstract: 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: GrantFiled: November 19, 1993Date of Patent: April 18, 1995Assignee: Shell Oil CompanyInventor: Carlton E. Ash
-
Patent number: 5371126Abstract: 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: GrantFiled: April 14, 1993Date of Patent: December 6, 1994Assignee: Sandoz Ltd.Inventor: Ralph H. Strickler
-
Patent number: 5283271Abstract: 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: GrantFiled: December 28, 1992Date of Patent: February 1, 1994Assignee: Olin CorporationInventors: Derek H. R. Barton, Catherine Tachdjian
-
Patent number: 5270364Abstract: 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: GrantFiled: September 24, 1991Date of Patent: December 14, 1993Assignee: Chomerics, Inc.Inventors: Kenneth K. Schwartz, Michael T. Kocsik
-
Patent number: 5260377Abstract: 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: GrantFiled: November 5, 1992Date of Patent: November 9, 1993Assignees: University of Southern California, Hercules IncorporatedInventors: William P. Weber, Raymond T. Leibfried, Xiugao Liao
-
Patent number: 5260361Abstract: 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: GrantFiled: November 18, 1992Date of Patent: November 9, 1993Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroshi Fukushima, Misao Tamura, Osamu Takemoto, Takaji Kawaguchi
-
Patent number: 5216098Abstract: The present invention provides crosslinked ampholytic copolymers that are highly absorbent to aqueous electrolyte solutions.Type: GrantFiled: July 21, 1992Date of Patent: June 1, 1993Assignee: Phillips Petroleum CompanyInventors: Iqbal Ahmed, Henry L. Hsieh
-
Patent number: 5210118Abstract: 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: GrantFiled: June 10, 1991Date of Patent: May 11, 1993Assignee: Ciba-Geigy CorporationInventor: Roberto Scrima
-
Patent number: 5196465Abstract: 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: GrantFiled: February 3, 1992Date of Patent: March 23, 1993Assignee: Ciba-Geigy CorporationInventors: Roberto Scrima, Graziano Zagnoni, Valerio Borzatta
-
Patent number: 5155151Abstract: 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: GrantFiled: February 21, 1992Date of Patent: October 13, 1992Assignee: Sumitomo Naugatuck Co., Ltd.Inventors: Kenji Hashimoto, Syuzi Takahashi, Hiroyuki Minematsu
-
Patent number: 5143954Abstract: 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: GrantFiled: November 27, 1990Date of Patent: September 1, 1992Assignee: Rohm and Haas CompanyInventors: Thomas W. Hutton, Ronald W. Novak
-
Patent number: 5140055Abstract: 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: GrantFiled: July 5, 1991Date of Patent: August 18, 1992Assignee: Bridgestone CorporationInventors: Yasushi Hirata, Kazuya Hatakeyama
-
Patent number: 5130391Abstract: The present invention provides crosslinked ampholytic copolymers that are highly absorbent to aqueous electrolyte solutions.Type: GrantFiled: October 31, 1990Date of Patent: July 14, 1992Assignee: Phillips Petroleum CompanyInventors: Iqbal Ahmed, Henry L. Hsiehp
-
Patent number: 5130198Abstract: 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: GrantFiled: April 27, 1990Date of Patent: July 14, 1992Assignee: PPG Industries, Inc.Inventors: Robert G. Swisher, Peter C. Gaa, James W. Kasunic
-
Patent number: 5110887Abstract: The present invention provides an article of manufacture which contains a crosslinked ampolytic copolymer that is highly absorbent to aqueous electrolyte solutions.Type: GrantFiled: September 18, 1991Date of Patent: May 5, 1992Assignee: Phillips Petroleum CompanyInventors: Henry L. Hsieh, Iqbal Ahmed
-
Patent number: 5110851Abstract: 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: GrantFiled: January 8, 1990Date of Patent: May 5, 1992Assignee: Calgon CorporationInventors: Wood E. Hunter, Gary P. Craun
-
Patent number: 5104919Abstract: 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: GrantFiled: March 15, 1990Date of Patent: April 14, 1992Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takehide Okami, Masanobu Miyakoshi, Hajime Kiriki
-
Patent number: 5098970Abstract: The present invention provides crosslinked ampolytic copolymers that are highly absorbent to aqueous electrolyte solutions.Type: GrantFiled: October 31, 1990Date of Patent: March 24, 1992Assignee: Phillips Petroleum CompanyInventors: Henry L. Hsieh, Iqbal Ahmed
-
Patent number: 5096951Abstract: 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: GrantFiled: December 13, 1990Date of Patent: March 17, 1992Assignee: Hoechst Celanese CorporationInventor: Andrew Auerbach
-
Patent number: 5086092Abstract: 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: GrantFiled: April 12, 1991Date of Patent: February 4, 1992Assignee: BASF Lacke+Farben AktiengesellschaftInventors: Hans Schupp, Thomas Schwerzel, Dirk Lawrenz, Hans-Josef Oslowski, Ulrich Heimann
-
Patent number: 5079285Abstract: 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: GrantFiled: August 8, 1990Date of Patent: January 7, 1992Assignee: Shell Oil CompanyInventor: Robert Q. Kluttz
-
Patent number: 5037858Abstract: 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: GrantFiled: June 21, 1990Date of Patent: August 6, 1991Assignee: Ionics, IncorporatedInventor: Russell J. MacDonald