Five-membered Nitrogen Containing Ring Patents (Class 524/94)
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Patent number: 5716667Abstract: A releasable aqueous coating composition used for temporarily protecting a finished coating film coated on an automobile body. It contains (A) an aqueous acrylic resin obtained by copolymerizing a monomer mixture of a (meth)acrylic ester monomer as an essential component and other polymerizable unsaturated monomer, except for (meth)acrylonitrile, as an optional component, and having a glass transition temperature of 5.degree. to 30.degree. C. and a weight average molecular weight of 20,000 or more, (B) an ultraviolet light absorber, and (C) a water repellent material. A method of temporarily protecting the finished coating film on the automobile body by coating the releasable aqueous coating composition onto a surface of a finished cured coating film coated onto the automobile body.Type: GrantFiled: April 22, 1996Date of Patent: February 10, 1998Assignee: Kansai Paint Co., Ltd.Inventors: Seiji Kashiwada, Shouji Takahashi, Hiroshi Inoue, Kenya Suzuki
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Patent number: 5714530Abstract: A synergistic stabilizer composition for polymers is described containing (i) a hydroxy-group containing triazine, and (ii) a 2,2,6,6-tetraalkyl piperidine compound. Also, described is a method of stabilizing polymers.Type: GrantFiled: June 7, 1995Date of Patent: February 3, 1998Assignee: Cytec Technology Corp.Inventor: Paul Sheldon Waterman
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Patent number: 5650455Abstract: This invention provides a method for rendering a water-based coating (i.e., one which contains essentially no organic solvent) fluorescent. Also provided is a method for measuring the extent of coverage and thickness of a water-based coating by incorporating therein a minor amount of an emulsion of an insoluble compound which absorbs ultraviolet light and fluoresces strongly in the visible region of the spectrum, so that the intensity of the fluorescence serves as an indication of the degree of coverage and thickness of the film. Also provided is a method for enhancing the apparent brightness of a film pigmented with light colored pigments. In the case where white pigments such as titanium dioxide are used, the effect is to increase the apparent whiteness of the film.Type: GrantFiled: October 17, 1995Date of Patent: July 22, 1997Assignee: Eastman Chemical CompanyInventors: Douglas G. Atkins, Theron E. Parsons, III, William C. Gose
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Patent number: 5639809Abstract: The present invention provides a polarizing film having high heat resistance and a high degree of polarization and excellent optical properties by dyeing a polymer film with a novel azo compound represented by the following formula (1) or (2): ##STR1##Type: GrantFiled: June 14, 1995Date of Patent: June 17, 1997Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Yoriaki Matsuzaki, Ryu Oi, Rihoko Imai, Keisuke Takuma, Hisato Itoh
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Patent number: 5639446Abstract: Compounds of formula (I) ##STR1## wherein the groups are as defined in the description, are useful as sunscreens in cosmetics and in the stabilization of synthetic polymers.Type: GrantFiled: September 20, 1996Date of Patent: June 17, 1997Assignee: 3V Inc.Inventors: Giuseppe Raspanti, Giorgio Zanchi
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Patent number: 5629365Abstract: Aqueous latices adapted to forming visible light transparent, coherent polymeric films, e.g. in laminates, as protective coatings or as adhesives, comprising colloidal particles of a UV-absorbing polymer less than 5 micrometers in diameter. Useful UV-absorbing polymer include homopolymers and copolymers of vinyl-functionalized monomer of benzotriazole or benzophenone and mixtures with plasticizer and/or coalescing agent. Plasticizer and coalescing agents are useful for providing polymer with reduced glass transition temperature to facilitate coalescence of polymer particles into coherent films. Useful additives for the latices of this invention include wetting agents, surfactants, and crosslinking agents, anti-oxidants and radical scavengers. The latices of this invention are particularly useful in providing clear, thin coatings on windows, tags, labels, flooring, tents, awnings, containers and other UV-susceptible substrates.Type: GrantFiled: December 21, 1994Date of Patent: May 13, 1997Assignee: Monsanto CompanyInventor: Homaune A. Razavi
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Patent number: 5605754Abstract: A thermoplastic article having on the outer surface thereof a protective layer having in admixture a trihydricphenol-benzotriazole ultra violet light absorber and a thermoplastic resin preferably a polycarbonate. The protective layer may be coated on the thermoplastic substrate or it may be co-extruded with the thermoplastic substrate.Type: GrantFiled: November 30, 1995Date of Patent: February 25, 1997Assignee: General Electric CompanyInventors: Josef G. Berndsen, Luca P. Fontana
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Patent number: 5562794Abstract: There is now provided a solvent cement having a total of less than 80 weight percent of solvents and a thermoplastic polyurethane elastomer as at least one of the resins dissolved in the solvent. The solvent mixture contains at least a 5- or 6-membered water miscible lactone or lactam such as N-methyl-2-pyrrolidone (NMP) in an amount of 21 weight percent or less based on the weight of all the ingredients. The reduced solvent concentration assists in lowering VOC emissions while preserving the hydrostatic burst strength mechanical property required by ASTM D 2564-88.Type: GrantFiled: March 8, 1995Date of Patent: October 8, 1996Assignee: BASF CorporationInventors: Ulrich Abel, Lawrence E. James, Mark W. Waldrop
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Patent number: 5563193Abstract: There is now provided a solvent cement having a total of less than 80 weight percent of solvents and a thermoplastic polyurethane elastomer as at least one of the resins dissolved in the solvent. The solvent mixture contains at least a 5- or 6-membered water miscible lactone or lactam such as N-methyl-2-pyrrolidone (NMP) in an amount of 21 weight percent or less based on the weight of all the ingredients. The reduced solvent concentration assists in lowering VOC emissions while preserving the hydrostatic burst strength mechanical property required by ASTM D 2564-88.Type: GrantFiled: January 25, 1996Date of Patent: October 8, 1996Assignee: BASF CorporationInventors: Ulrich Abel, Lawrence E. James, Mark W. Waldrop
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Patent number: 5510403Abstract: A process for dyeing synthetic polyamide comprising applying to the polyamide a compound of formula I or II ##STR1## in which R.sub.2 is hydrogen, trifluoromethyl, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, cyano, nitro, hydroxyl, amino, C.sub.1-4 alkylamino, di-(C.sub.1-4)alkylamino, phenylamino, N-C.sub.1-4 alkyl-N-phenylamino; benzoylamino, acyl, acyloxy or acylamino,Me is a divalent metal atom;R.sub.1 is 1,2-phenylene, 1,2-, 2,3- or 1,8-naphthalene or 2,2'-diphenylene, the phenylene and naphthalene groups of R.sub.1 being unsubstituted or mono- or di-substituted by R.sub.2a where R.sub.2a has a significance of R.sub.2 other than hydrogen or by 3 or 4 halogen atoms; or in the naphthalene group two adjacent carbon atoms can be bridged by --NH--CO--NH--, --N.dbd.C(CH.sub.3)--NH--, --N.dbd.C(C.sub.6 H.sub.5)--NH--, --CO--N(C.sub.6 H.sub.5)--CO--, --CO--NH--CO--, ##STR2## R.sub.3 is ##STR3## where R is hydrogen or C.sub.1-4 alkyl unsubstituted or substituted by 1 to 4 groups selected from halogen, cyano, C.Type: GrantFiled: January 7, 1991Date of Patent: April 23, 1996Assignee: Sandoz Ltd.Inventor: Bansi L. Kaul
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Patent number: 5496874Abstract: Disclosed is a hydrodisintegratable material which, when injection molded into an object, acquires and maintains the desired shape without becoming brittle. Additionally, in the presence of water, the molded object has the ability to rapidly disintegrate and disperse when subjected to standardized agitation testing. The moldable material typically includes: (1) from about 7.5 to about 85 weight percent of at least one water dispersible polymer; (2) from about 7.Type: GrantFiled: November 2, 1994Date of Patent: March 5, 1996Assignee: Kimberly-Clark CorporationInventors: Judith K. Faass, Lee K. Jameson, Bernard Cohen, Lamar H. Gipson
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Patent number: 5492948Abstract: A stabilizer system for the suppression of yellowing in styrenic polymers, consisting essentially of a benzotriazole such as 2-(2'-hydroxy-3',5'-di-tert-amylphenyl)benzotriazole, a hydroxybenzocyanurate such as tris-(3,5-di-tert-butyl-4-hydroxybenzyl)isocyanurate and a condensation product of a N,N'-(2,2,6,6-tetramethylpiperidyl)-alkylenediamine and a 6-amino-2,4-dichloro-1,3,5-s-triazine such as the condensation product of N,N'-(2,2,6,6-tetramethylpiperidyl)hexamethylenediamine and 6-morpholino-2,4-dichloro-1,3,5-s-triazine. Additionally a dialkyl thiodipropionate and a zinc dialkyldithiocarbamate may be included in the stabilizer system.Type: GrantFiled: January 9, 1995Date of Patent: February 20, 1996Assignee: Monsanto CompanyInventors: Moh C. O. Chang, Chuan-Ju Chen, Allen R. Padwa
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Patent number: 5484901Abstract: Isoindolineazo pigments of the general formula I ##STR1## where A is the radical of an active-methylene compound or .dbd.S;L is substituted or unsubstituted 1,4-phenylene, 1,3-phenylene or 1,5-naphthylene;K is the radical of a coupling component K--H; and the benzene ring D is optionally substituted,are useful for pigmenting high polymer organic materials.Type: GrantFiled: March 22, 1995Date of Patent: January 16, 1996Assignee: BASF AktiengesellschaftInventors: Michael Krapp, Georg Henning
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Patent number: 5482984Abstract: A composition comprising a) a thermosetting, thermoplastic or structurally crosslinked polymer and b) a charge transfer complex of formula I in the form of a network of crystal needles in the polymer matrix[A].sup..crclbar. .multidot.B.sup..sym. (I),whereinA is a compound of formula II or a mixture of compounds of formula II ##STR1## wherein the R substituents are identical and are H or C.sub.1 -C.sub.4 alkyl, or the adjacent R substituents, taken together, are --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 --; R.sub.1 is H or C.sub.1 -C.sub.4 alkyl; and X.sub.1 is .dbd.N--CN, and X.sub.2, X.sub.3 and X.sub.4 are each independently of one another .dbd.O or .dbd.N--CN, and B is a compound of formula III or IIIa ##STR2## wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each independently of one another H, linear or branched C.sub.1 -C.sub.18 alkyl-(Z.sub.1).sub.n --, phenyl-(Z.sub.1).sub.n -- or benzyl-(Z.sub.1).sub.n -- which are unsubstituted or substitute by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.Type: GrantFiled: September 22, 1994Date of Patent: January 9, 1996Assignee: Ciba-Geigy CorporationInventor: Peter Chetcuti
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Patent number: 5458815Abstract: 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. 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: September 8, 1994Date of Patent: October 17, 1995Assignee: Transitions Optical, Inc.Inventor: David B. Knowles
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Patent number: 5451344Abstract: Described are novel reversible photochromic diaryl-3H-naphtho[2,1-b]pyran compounds having a substituted or unsubstituted, five or six member heterocyclic ring fused to the g, i, or l side of the naphthopyran. The heterocyclic ring contains an oxygen or nitrogen atom and is attached to the number 5, 6, 7, 8, 9, or 10 carbon atom of the naphtho portion of the naphthopyran. Also described are organic host materials containing 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)oxazine-type compounds, are also described.Type: GrantFiled: April 8, 1994Date of Patent: September 19, 1995Assignee: Transitions Optical, Inc.Inventors: David B. Knowles, Barry Van Gemert
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Patent number: 5397821Abstract: N-(2,2,6,6-tetraalkyl-4-piperidinyl)amic acid hydrazides contain a light stabilizing group, a heat stabilizing group and an amic acid hydrazide functionality in the same molecule. The amic acid hydrazide functionality in the compounds enhances the photooxidative stabilizing properties of the hindered amine groups and contributes thermal and oxidative stabilizing and metal complexing properties to the compounds. The novel compounds are excellent light stabilizers for polyolefins, have low volatility and are not readily lost from polymeric systems via volatilization, migration or extraction.Type: GrantFiled: April 28, 1994Date of Patent: March 14, 1995Assignee: Elfatochem North America, Inc.Inventors: Ronald E. MacLeay, Harold C. Lange
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Patent number: 5397819Abstract: Provided is a method for tagging thermoplastic containers using near infrared fluorescing compounds or copolymerized residues readily capable of detection. Also provided is a method for identifying a thermoplastic container. Also provided are thermoplastic polymer compositions comprised of the near infrared fluorescing compounds or residues and articles comprised of such compositions. Also provided are new compounds useful as near infrared fluorophoric markers in the practice of this invention. The methods, compositions, and compounds of the present invention thus provide a total system useful for marking, for identification purposes, the various classes of thermoplastic wastes, so that they can be identified, sorted, and subsequently recycled.Type: GrantFiled: November 24, 1993Date of Patent: March 14, 1995Assignee: Eastman Chemical CompanyInventors: James J. Krutak, Michael R. Cushman, Clarence A. Coates, William W. Parham, Max A. Weaver, Gabor Patonay
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Patent number: 5378744Abstract: A composition comprising a) a thermosetting, thermoplastic or structurally crosslinked polymer and b) a charge transfer complex of formula I in the form of a network of crystal needles in the polymer matrix[A].sup..crclbar. B.sup..sym. (I),wherein A is a compound of formula II or a mixture of compounds of formula II ##STR1## wherein the R substituents are identical and are H or C.sub.1 -C.sub.4 alkyl, or the adjacent R substituents, taken together, are --(CH.sub.2).sub.3 --or --(CH.sub.2).sub.4 --; R.sub.1 or C.sub.1 -C.sub.4 alkyl; and H.sub.1 is .dbd.N--CN, and X.sub.2, X.sub.3 and X.sub.4 are each independently of one another .dbd.O or .dbd.N--CN, and B is a compound of formula III or IIIa ##STR2## wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each independently of one another H, linear or branched C.sub.1 -C.sub.18 -alkyl-(Z.sub.1).sub.n --, phenyl-(Z.sub.1).sub.n - or benzyl-(Z.sub.1).sub.n --which are unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.Type: GrantFiled: January 22, 1993Date of Patent: January 3, 1995Assignee: Ciba-Geigy CorporationInventor: Peter Chetcuti
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Patent number: 5378406Abstract: A fungiresistant polyorganosiloxane composition comprising(A) 100 parts by weight of a polyorganosiloxane having a viscosity at 25.degree. C. of from 100 to 500,000 cSt, each of both the terminals of which being blocked with a silanol group or an alkoxy group,(B) from 0.1 to 20 parts by weight of an organisilicon compound having on the average more than 2 hydrolyzable groups each bonded to a silicon atom in the molecule,(C) from 0.001 to 25 parts by weight of a benzimidazolylcarbamate compound represented by the formula ##STR1## wherein R.sup.1 represents a hydrogen atom, an alkyl group having from 1 to 4 carbon atoms, a halogen atom, or a nitro group; R.sup.2 represents an alkyl group having from 1 to 4 carbon atoms or an alkoxyalkyl group having from 2 to 4 carbon atoms: and R.sup.3 represents a hydrogen atom, an N-substituted or unsubstituted carbamoyl group or an N-substituted or unsubstituted carbamoyloxy group, and(D) from 0.Type: GrantFiled: July 12, 1993Date of Patent: January 3, 1995Assignee: Toshiba Silicone Co., Ltd.Inventor: Hisayuki Nagaoka
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Patent number: 5376710Abstract: Compounds which comprise at least one group of the formula I or II ##STR1## and at least one polyalkylpiperidine group of the formula III ##STR2## in which R and R.sub.1 to R.sub.6 have the meaning indicated in claim 1, are effective stabilizers for organic materials against damage by light, oxygen and heat.Type: GrantFiled: March 10, 1993Date of Patent: December 27, 1994Assignee: Ciba-Geigy CorporationInventors: Mario Slongo, Jean-Luc Birbaum, Jean Rody, Andreas Valet
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Patent number: 5371123Abstract: Polyester resins, optionally in combination with a polycarbonate, flame retarded with a halogenated bis-imide flame retardant agent and modified with a glass fiber reinforcing agent treated with a coating agent selected from certain polyepoxides and/or polyolefins exhibit markedly improved color characteristics.Type: GrantFiled: December 22, 1992Date of Patent: December 6, 1994Assignee: General Electric CompanyInventors: Robert R. Gallucci, Leslie J. Goff, Douglas G. Hamilton
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Patent number: 5360850Abstract: Provided are asymmetrical, ultraviolet stabilizers which are hydroxyphenyl benzotriazolylphenol compounds of the formula: ##STR1## wherein: R.sub.1 is C.sub.1 to C.sub.18 alkyl, C.sub.6 to C.sub.10 aryl, C.sub.7 to C.sub.16 arylalkyl, C.sub.1 to C.sub.12 alkoxy, C.sub.6 to C.sub.10 aryloxy, C.sub.7 to C.sub.16 arylalkoxy, cyclopentyl, cyclohexyl or cumyl;R.sub.2 is C.sub.1 to C.sub.18 alkyl, C.sub.6 to C.sub.10 aryl, C.sub.7 to C.sub.16 arylalkyl, C.sub.1 to C.sub.12 alkoxy, C.sub.6 to C.sub.10 aryloxy, C.sub.7 to C.sub.16 arylalkoxy, cyclopentyl, cyclohexyl or cumyl;R.sub.1 is different from R.sub.2 ; andX is selected from the group consisting of hydrogen, halogen, C.sub.1 to C.sub.12 alkyl, and C.sub.1 to C.sub.12 alkoxy. The invention also pertains to a process for their preparation and stabilized polymer blends containing the stabilizers.Type: GrantFiled: November 30, 1993Date of Patent: November 1, 1994Assignee: Fairmount Chemical Company, Inc.Inventors: Semyon Moshchitsky, William E. Leistner
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Patent number: 5354795Abstract: a polypropylene resin composition comprising:(A) a composition of (a) a crystallineethylene-propylene block copolymer, (b) a thermoplastic elastomerhaving a substantially saturated main chain, and (c) an inorganic filler;(B) (i) a hindered nitrogen-free phenolic antioxidant;(ii) a nitrogen-containing hindered phenolic antioxidant;(iii) a benzotriazole ultraviolet absorber; and(iv) a hindered amine light stabilizer having a molecular weight of 500 or more or having no N-H bond and having a molecular weight of less than 500, or(i') a hindered phenolic antioxidant;(ii') an organic sulfur type antioxidant; and(iii') a hindered amine light stabilizer having no N-H bond.Type: GrantFiled: May 17, 1993Date of Patent: October 11, 1994Assignee: UBE Industries, Ltd.Inventors: Kohhei Ueno, Yoshifumi Nakano, Kazuyoshi Tanaka, Yasuo Kita
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Patent number: 5350786Abstract: Stabilizers for organic polymers, consisting of one or more compounds of the classis of the sterically hindered amines (HALS) are directly added to the reaction mixture during the (co)polymerization of the .alpha.-olefins or of their mixtures with other unsaturated monomers.The so-obtained polymeric compositions result perfectly stabilized and show a thermo- and photo-oxidative resistance higher than that of the same polymeric compositions to which the same stabilizers are added by a traditional route.Type: GrantFiled: March 4, 1993Date of Patent: September 27, 1994Assignee: Enichem Synthesis S.p.A.Inventors: Silvestro Costanzi, Damiano Gussoni, Luciano Pallini
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Patent number: 5342862Abstract: Process for controlling the photodegradation of a film of polypropylene or propylene copolymers having a thickness of about 1.25 mils or less, by forming a composition comprising carbon black as the sole UV light absorbing staiblizer and comprising about 0.5% to about 2.4% by weight of the film, hindered amine light stabilizer for interrupting the free radical chain degradation mechanism and comprising about 0.02% to about 0.4% by weight of the film; and an impact modifier for enhancing the photodegradability of the film and comprising about 1% to 40% by weight of the film.Type: GrantFiled: December 13, 1993Date of Patent: August 30, 1994Assignee: Biolan CorporationInventor: Murray H. Reich
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Patent number: 5340854Abstract: An improved photographic support, especially useful for color prints, is comprised of a paper base material having thereon a polyolefin coating containing a white pigment and an optical brightener, such as a mixture comprising inclusion compounds of certain fluorescent bis(benzoxazolyl)-stilbenes.Type: GrantFiled: January 14, 1993Date of Patent: August 23, 1994Assignee: Eastman Kodak CompanyInventors: Peter A. Martic, Todd R. Skochdopole
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Patent number: 5334642Abstract: Stabilized polyaryl ether ketone molding compositions containing as essential componentsA) from 50 to 99.99% by weight of a polyaryl ether ketone prepared by electrophilic polycondensation and composed to an extent of not less than 50 mol % of units of the formula I' ##STR1## where s and t are each 0, 1, 2 or 3, T and T' are each --O-- or --CO-- and Ar is meta-phenylene, paraphenylene or two aromatic rings linked to each other in the meta or para position by a chemical bond, or the ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.6 -C.sub.20 -aryl or halogen derivatives thereof,B) from 0.01 to 4% by weight of at least one organic compound which has a base constant pk.sub.b within the range from 2 to 12 and a boiling point of higher than 300.degree. C.,C) from 0 to 50% by weight of a further thermoplastic other than A), andD) from 0 to 45% by weight of fibrous or particulate fillers or mixtures thereof.Type: GrantFiled: December 30, 1992Date of Patent: August 2, 1994Assignee: BASF AktiengesellschaftInventors: Juergen Koch, Gerhard Heinz
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Patent number: 5331029Abstract: A resin for bonding polyarylene sulfides is disclosed, comprising a copolymer wherein a main constituent element of the repeating unit of the copolymer is --A--Z--R--Z--, wherein --Z--is an ester linkage; A is an arylene sulfide oligomer component block comprising one or more arylene groups; and R is an organic compound residue formed by removing one atom or one group attached to each of two carbon atoms among carbon atoms constituting either an aliphatic main chain or an aromatic ring and has at most a molecular weight corresponding to an oligomer, but is different from A. An adhesive comprising the resin and a pyrrolidone solvent is also disclosed.Type: GrantFiled: June 14, 1993Date of Patent: July 19, 1994Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Hiroyuki Sato, Kazuhiro Watanabe, Toshiya Watanabe
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Patent number: 5328948Abstract: A composition comprising a halopolymer, such as an ethylene/chlorotrifluoroethylene copolymer, an effective stabilizing amount of an ionomer, and an effective stabilizing amount of a compound such as a phosphite of an organic polyhydric phenol; a thioester; a phosphite; or a hindered phenolic antioxidant. Preferred ionomers are metal salts of ethylene-acrylic acid copolymers, and metal salts of sulfonated polystyrenes. The stabilized halopolymers have improved resistance to thermal degradation and suffer less discoloration when subjected to high melt processing or extrusion molding temperatures.Type: GrantFiled: September 23, 1992Date of Patent: July 12, 1994Assignee: Ausimont, U.S.A., Inc.Inventors: Chii-Shu Chen, L. Lawrence Chapoy
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Patent number: 5326800Abstract: The invention relates to use of salts of sulphonic acids, phosphonic acids and/or carboxylic acids in combination with halogenated phthalimides for additional processing of glass fibre-containing polycarbonate moulded members.Type: GrantFiled: March 11, 1993Date of Patent: July 5, 1994Assignee: Bayer AktiengesellschaftInventors: Klaus Horn, Jurgen Kirsch, Richard Weider, Hugo Obermann, Dieter Freitag, Karsten-Josef Idel
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Patent number: 5317054Abstract: A reinforced polyamide composites comprising polyamide resin, 1 to 60 weight percent fiber and/or talc, and 0.1 to 5 phr (part per hundred by resin) interfacial modifier, based on the weight of the polyamide composites; wherein the interfacial modifier are functional organic compounds of structural formula:R.sub.1 (CO.sub.2 H)x;R.sub.1 (CO).sub.2 NH; andR.sub.1 (CO).sub.2 O,whereR.sub.1, R.sub.2, R.sub.3 may be aliphatic or aromatic hydrocarbyl group; the number of carbon atoms in R.sub.1, R.sub.2 and R.sub.3 is in the range of 2 to 16, preferably 2 to 12; and x=1 to 4.The interfacial modifier can be mixed with glass and/or talc and polyamide simultaneously and compounded directly; or, premix the interfacial modifier and polyamide, melt the premix, then incorporate glass fiber and/or talc and compound to form the reinforced polyamide composites. The physical properties of the instant composites can be improved significantly.Type: GrantFiled: August 7, 1992Date of Patent: May 31, 1994Assignee: Industrial Technology Research InstituteInventors: Chih-Cheng Chiang, Mao-Song Lee, Jen-Lien Lin, Der-Tarng Su, Shen-Nan Tong
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Patent number: 5317048Abstract: Disclosed is a process for producing an ultra-white N,N'-ethylene-bis(tetrabromophthalimide) product useful as a flame retardant. Also disclosed is a flame retardant composition predominantly comprised of N,N'-ethylene-bis(tetrabromophthalimide) and having a yellowness index of about 4 or less.Type: GrantFiled: September 30, 1992Date of Patent: May 31, 1994Assignee: Great Lakes Chemical CorporationInventors: Brian Tarbit, Brian Adger, Paul Willett
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Patent number: 5312851Abstract: A light-resistant wholly aromatic polyamide resin composition comprises a light-resisting agent blended to a wholly aromatic polyamide resin and comprising at least one naphthalene ring structure-containing compound of the formula (I): ##STR1## wherein Ar.sub.1, Ar.sub.2, Ar.sub.3 =a divalent organic group, X=an amide bond group (--CONH), Y=an amide bond group or an imide bond group ##STR2## A and B=a monovalent organic group when Y=an amide bond group, or =a divalent organic group when Y=an imide bond group, n=1 to 10, and at least one of Ar.sub.1, Ar.sub.2, Ar.sub.3, A and B has a naphthalene ring structure.Type: GrantFiled: December 29, 1992Date of Patent: May 17, 1994Assignee: Teijin LimitedInventors: Toshitsugu Matsuki, Tsutomu Kiriyama, Toshihiro Santa
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Patent number: 5298539Abstract: New additives in rubber compositions improve tire cord adhesion without need to use resorcinol. The new additives are derivatives of melamine, aceto guanamine, benzoguanamine, cyclohexylguanamine, and glycoluril, substituted with at least two vinyl-terminated radicals. Preferred compounds may also be substituted with at least one radical having a carbamylmethyl group.Type: GrantFiled: September 5, 1990Date of Patent: March 29, 1994Assignee: Cytec Industries, Inc.Inventors: Balwant Singh, John A. Sedlak
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Patent number: 5298540Abstract: Recycled mixed plastics from domestic and commercial waste can be stabilized against thermal oxidative degradation by adding a combination of a sterically hindered phenol with a phosphite or phosphonite.Type: GrantFiled: March 25, 1992Date of Patent: March 29, 1994Assignee: Ciba-Geigy CorporationInventors: Jean-Roch Pauquet, Franciszek Sitek, Roberto Todesco
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Patent number: 5296519Abstract: Disclosed is a novel UV light absorbing compound which can preferably be employed in the art of colored molding plastics, resin films, heat-sensitive transfer materials, liquid crystal display materials, color photographs and the like, and method for producing thereof. The UV light absorbing compound is characterized by the general formula: ##STR1## wherein R.sup.1 represents linear or branched alkyl or aralkyl group, and R.sup.2 represents --CN or --COOR.sup.3, wherein R.sup.3 represents substituted or unsubstituted alkyl or aralkyl group.Type: GrantFiled: June 11, 1992Date of Patent: March 22, 1994Assignee: Orient Chemical Industries, Ltd.Inventor: Masahiro Otsuka
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Patent number: 5288776Abstract: A composition comprisinga) a chlorinated polymer, andb) at least one compound of formula I ##STR1## wherein X is a group ##STR2## R.sub.1 and R.sub.2 are each independently of the other C.sub.1 -C.sub.20 alkyl, hydroxy- and/or halogen-substituted C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.20 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkyl, phenyl or phenyl which is substituted by 1 to 3 radicals A.sub.1, which radicals A.sub.1 are each independently of one another selected from the group consisting of C.sub.1 -C.sub.10 alkyl, halogen, hydroxy, methoxy and ethoxy,R.sub.1 and R.sub.2 are further C.sub.7 -C.sub.10 phenylalkyl or C.sub.7 -C.sub.10 phenylalkyl which is substituted in the phenyl moiety by 1 to 3 radicals A.sub.2, which radicals A.sub.2 are each independently of one another selected from the group consisting of C.sub.1 -C.sub.20 alkyl, halogen, hydroxy, methoxy and ethoxy, andR.sub.3 is phenyl or phenyl which is substituted by 1 to 3 radicals A.sub.Type: GrantFiled: June 3, 1991Date of Patent: February 22, 1994Assignee: Ciba-Geigy CorporationInventors: Rolf Drewes, Hans-Helmut Friedrich
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Patent number: 5284889Abstract: An electrically insulating film having a total halogen content of about 1% to about 8%, comprising a resin component containing:a) from 0 to about 40 parts of a rubber selected from EP or EPDM rubber,b) correspondingly, from about 60 to about 100 parts of an ethylene vinyl acetate polymer,c) from about 20% to about 40% based on said resin component, of a flame retardant system comprisingi) from about 5 to about 25% of a bromine containing flame retardant,ii) from about 1.5% to about 10% of an antimony containing flame retardant, andiii) from 1% to about 20% of a flame retardant selected from granular metal oxide hydrates, wherein said flame retardant system has a ratio of metal oxide hydrate to bromine of no more than about 3;said film being free of vinyl chloride wherein a nonoriented film self-extinguishes in less than about 5 seconds, has an elongation at break of at least about 500%, a dielectric strength of at least about 1200 V/Mil, and a stress-strain curve having a wholly positive slope.Type: GrantFiled: November 20, 1992Date of Patent: February 8, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Eumi Pyun, Pamela S. Tucker
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Patent number: 5284888Abstract: 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: GrantFiled: October 28, 1991Date of Patent: February 8, 1994Assignee: Chomerics, Inc.Inventor: Noredin H. Morgan
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Patent number: 5280056Abstract: This invention relates to a method for increasing the ultraviolet light stability of articles made from macromolecular materials comprising: forming a flame-retarded formulation containing macromolecular material and a mixture of (i) a first alkylenebis(tetrabromophthalimide) flame retardant having a yellowness index (YI) value ranging from about 20 to about 40 as determined by ASTM D-1925; and (ii) a second alkylenebis-(tetrabromophthalimide) flame retardant having a yellowness index (YI) value (ASTM D-1925) ranging from about 2 to about 15 whereby the uv stability of a test plaque made from the flame-retarded formulation is greater than the arithmetic average of the uv stabilities of a test plaque made from a flame-retarded formulation containing (i) but not (ii) and of a test plaque made from a flame-retarded formulation containing (ii) but not (i).Type: GrantFiled: February 9, 1993Date of Patent: January 18, 1994Assignee: Ethyl CorporationInventors: Susan D. Landry, Jon S. Reed, F. Alexander Pettigrew
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Patent number: 5280050Abstract: A thermoplastic polycarbonate molding composition which is rendered resistant to deterioration induced by exposure to gamma radiation is disclosed. The composition is imparted an improved degree of color stability upon the incorporation of a minor amount of a poly(alkylene oxide) oligomer and a halogenated aromatic acid derivative therewith. In addition, the composition is characterized by its low initial color and the small change in its yellowness index after a waiting period of several weeks.Type: GrantFiled: May 19, 1992Date of Patent: January 18, 1994Assignee: Miles Inc.Inventors: Douglas G. Powell, Sivaram Kirshnan
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Patent number: 5274016Abstract: Light-stabilized polymer microparticles, which contain at least one light stabilizer, and processes for the preparation of these microparticles by polymerization of suitable monomers, at least a part of the polymerization being carried out in the presence of at least one light stabilizer, are described. The polymer microparticles can be used in coating compositions which comprise a disperse phase containing these particles and a liquid continuous phase.Coatings and finishes based on the compositions according to the invention are distinguished by improved weathering resistance, in particular by a high light stability.Type: GrantFiled: August 5, 1991Date of Patent: December 28, 1993Assignee: Ciba-Geigy CorporationInventors: Godwin Berner, Manfred Rembold, Jean Rody, Mario Slongo
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Patent number: 5266616Abstract: This invention concerns a resin formulation for an organically pigment polyolefin resin suitable for tubing and pipe service. The resin formulation is comprised of ethylene polymers, a UV stabilizer, an antioxidant, and a tetrachloroisoindolinone pigment. The resulting resin possesses excellent heat stability and color fastness. The dilute concentration of organic pigment in the inventive formulation presents a cost acceptable alternative to the widely- and routinely-used cadmium- and lead-bearing dyes and pigments which are classified as toxic chemicals under SARA Title III Section 313.Type: GrantFiled: July 12, 1991Date of Patent: November 30, 1993Assignee: Phillips Petroleum CompanyInventor: Al R. Wolfe
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Patent number: 5266320Abstract: 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: GrantFiled: February 14, 1992Date of Patent: November 30, 1993Assignee: BASF AktiengesellschaftInventors: Martin Holderbaum, Alexander Aumueller, Hubert Trauth
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Patent number: 5232964Abstract: This invention relates to radiation curable abrasion resistant coatings for solid substrates which are tintable. The compositions of the present invention contain a quaternary ammonium salt as a tintability enhancing compound. The cured coatings of this invention simultaneously resist abrasion and provide superior tintability.Type: GrantFiled: November 12, 1991Date of Patent: August 3, 1993Assignee: Dow Corning CorporationInventors: Chana W. Evans, Anthony Revis
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Patent number: 5208278Abstract: Stabilized polyaryl ether ketone molding compositions containing as essential componentsA) from 50 to 99.99% by weight of a polyaryl ether ketone prepared by electrophilic polycondensation and composed to an extent of not less than 50 mol % of units of the formula I' ##STR1## where s and t are each 0, 1, 2 or 3, T and T' are each --0-- or --CO-- and Ar is meta-phenylene, paraphenylene or two aromatic rings linked to each other in the meta or para position by a chemical bond, or the ring-substituted C.sub.1 -C.sub.8 -alkyl, C.sub.6 -C.sub.20 -aryl or halogen derivatives thereof,B) from 0.01 to 4% by weight of at least one organic compound which has a base constant pk.sub.b within the range from 2 to 12 and a boiling point of higher than 300.degree. C.,C) from 0 to 50% by weight of a further thermoplastic other than A), andD) from 0 to 45% by weight of fibrous or particulate fillers or mixtures thereof.Type: GrantFiled: March 29, 1991Date of Patent: May 4, 1993Assignee: BASF AktiengesellschaftInventors: Juergen Koch, Gerhard Heinz
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Patent number: 5198482Abstract: The present invention provides a corrosion-inhibiting coating composition comprising:a) an acid-sensitive film former; andb) as a corrosion inhibitor, an effective amount of a salt ofi) 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 ##STR1## in which 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; with ii) n molar equivalents of an amine of the formula ##STR2## in which X, Y and Z are the same or different and each it hydrogen, alkyl optionally interrupted by one or more oxygen atoms, or alkyl substituted by hydroxy, or is phenyl, phenyl alkyl or alkylphenyl; and n is 1, 2, 3 or 4 depending upon the number of carboxyl groups in the carboxylic acid b i).Type: GrantFiled: June 20, 1991Date of Patent: March 30, 1993Assignee: Ciba-Geigy CorporationInventors: Emyr Phillips, Adalbert Braig
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Patent number: 5196462Abstract: Disclosed are dynamically partially or fully crosslinked thermoplastic elastomers, having incorporated therein zinc salts of certain mercapto compounds.Type: GrantFiled: September 18, 1991Date of Patent: March 23, 1993Assignee: Himont IncorporatedInventor: Dominic A. Berta
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Patent number: 5194465Abstract: ABS copolymers and similar styrene or .alpha.-methylstyrene copolymers with contain an elastomer phase are stabilized against light-induced degradation by a) incorporation of a copolymerizable sterically hindered amine in, and b) addition of a non-copolymerizable sterically hindered amine to, the copolymer. Preferred sterically hindered amines are polyalkylpiperidines.Type: GrantFiled: September 30, 1991Date of Patent: March 16, 1993Assignee: Ciba-Geigy CorporationInventors: Bernard Gilg, Gerhard Rytz, Werner Stauffer, Margot Clauss