Nitrogen As Part Of A Nitro Group Patents (Class 524/259)
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Patent number: 5378749Abstract: The invention relates to polyarylene sulfides (PAS), more particularly polyphenylene sulfides (PPS), showing reduced flash formation.Type: GrantFiled: September 10, 1993Date of Patent: January 3, 1995Assignee: Bayer AktiengesellschaftInventors: Burkhard Kohler, Bahman Sarabi
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Patent number: 5373039Abstract: A resin composition suitable for marking with a laser and a method for laser marking said resin are provided. The resin composition comprises a thermoplastic resin, one or more compounds selected from the group consisting essentially of (i) tetrazole compounds, and (ii) sulfonylhydrazide, nitroso and azo compounds having a decomposition temperature of at least 210.degree. C., and carbon black.Type: GrantFiled: May 25, 1993Date of Patent: December 13, 1994Assignee: General Electric CompanyInventors: Kenichi Sakai, Takuro Kitamura, Hideki Kato
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Patent number: 5369165Abstract: A halogen group solvent comprising a mixed solvent consisting essentially of bromochloromethane and/or 1,2-dichloroethylene and a co-solvent, wherein the co-solvent is at least one member selected from the group consisting of carbon dioxide, sulfur hexafluoride, difluorochloromethane, 1,1,1,2-tetrafluoroethane, etc., and the content of said co-solvent in the mixed solvent is 3 to 65% by weight; a polyolefin solution using the solvent; and a process for producing a three-dimensional fiber of a polyolefin using the solution.Type: GrantFiled: February 3, 1994Date of Patent: November 29, 1994Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Jinichiro Kato, Toshio Yoneyama, Kazuhiko Shimura, Yoshiaki Nakayama, Kenji Kanekiyo
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Patent number: 5367010Abstract: An adhesive composition containing a chlorinated ethylene/vinyl acetate copolymer and at least one of a phenolic resin and an aromatic nitroso compound as an adhesion-promoting additive. The chlorinated ethylene/vinyl acetate copolymer can be prepared without the utilization of environmentally hazardous chlorinated solvents and provides for adhesive compositions which exhibit excellent adhesion and resistance to adverse environmental conditions.Type: GrantFiled: March 22, 1993Date of Patent: November 22, 1994Assignee: Lord CorporationInventors: Nicholas J. Gervase, Louie G. Manino
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Patent number: 5362785Abstract: A styrene/butadiene copolymer rubber to be used for automobile tires is lowered in its rolling resistance by blending it with carbon black and the following components (A) and (B):(A) a dinitrodiamine compound represented by the following formula (I): ##STR1## wherein X is a divalent organic group such as an alkylene, R.sup.1 is hydrogen or an organic group such as an alkyl, provided that two nitrogen atoms linking through X may further link through R.sup.1, and R.sup.2 and R.sup.3 are each hydrogen or an alkyl, provided that R.sup.2 and R.sup.3 may conjointly form a ring; and(B) a sulfide compound selected from dibenzothiazyl disulfide, tetralkylthiuram disulfide, and alkyl- or hydroxy-substituted phenol sulfide resin. The dinitrodiamine compound (A) and the sulfide compound (B) are added simultaneously to the rubber together with the carbon black in a first kneading step of a high temperature.Type: GrantFiled: May 21, 1992Date of Patent: November 8, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Naoki Inui, Hideo Nagasaki, Shinichi Yachigo
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Patent number: 5281638Abstract: An aqueous adhesive composition containing a chlorosulfonated polyethylene latex, a polymaleimide compound, a nitroso compound and a metal oxide. The adhesive composition can be effectively utilized without a primer component and exhibits an unusually high resistance to pre-bake conditions and adverse environments. The adhesive also possesses the ability to effectively bond a variety of substrates.Type: GrantFiled: April 23, 1993Date of Patent: January 25, 1994Assignee: Lord CorporationInventor: Douglas H. Mowrey
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Patent number: 5281644Abstract: There are disclosed methods and compositions for retarding the ambient temperature hardening of a phenolic resole resin alone or with an aggregate when such resin is contacted with a nitroalkane and a hardening agent such as lightburned magnesium oxide, an organic ester functional hardening agent, and mixtures of lightburned magnesium oxide and an organic ester functional hardening agent in an alkaline medium. There is also disclosed a hardener composition for phenolic resole resins wherein the hardener composition consists essentially of a solution of a nitroalkane in an organic ester functional hardening agent.Type: GrantFiled: November 4, 1992Date of Patent: January 25, 1994Assignee: Borden, Inc.Inventors: S. Raja Iyer, David R. Armbruster, Arthur H. Gerber
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Patent number: 5268404Abstract: An adhesive composition exhibiting strong rubber-to-metal bonds with excellent environmental resistance without the necessity of first priming the metal surface has been discovered. The composition comprises a halogenated polyolefin, an aromatic nitroso compound, metal oxide such as zinc oxide or magnesium oxide, and optionally a vulcanizing agent such as sulfur or selenium, a phenolic epoxy resin, or carbon black.Type: GrantFiled: October 5, 1992Date of Patent: December 7, 1993Assignee: Lord CorporationInventor: Douglas H. Mowrey
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Patent number: 5236980Abstract: A novel composition is a solution in an organic solvent of an electron donor-acceptor complex of a conjugated aromatic polyazomethine compound and a Lewis acid compound. This composition is coated on a transparent support and the solvent is evaporated to produce an optical device. Decomposition of the polyazomethine-Lewis acid complex coated on the substrate produces a new optical device comprising a film of the polyazomethine compound on the substrate. Compositions of the present invention can also be used for the preparation of optical wave guides, optical switching elements, fibers, and dielectric materials.Type: GrantFiled: June 26, 1992Date of Patent: August 17, 1993Assignee: The University of RochesterInventors: Samson A. Jenekhe, Chen-Jen Yang
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Patent number: 5206277Abstract: This invention is directed to a method for eliminating or reducing pinhole defects in cataphoretically deposited films without interfering with the electrolysis of water needed for electrodeposition. This method comprises decreasing the evolution of hydrogen gas at the cathode by adding a compound to the emulsion. This compound is reduced by the hydrogen produced at the cathode during the electrodeposition. The hydrogen reacts with the this non-gaseous compound rather than becoming hydrogen gas and forming bubbles which lead to pinhole defects.Type: GrantFiled: July 1, 1991Date of Patent: April 27, 1993Assignee: Rohm and Haas CompanyInventor: Mark R. Winkle
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Patent number: 5200447Abstract: Described is A method of decreasing the formaldehyde content in an organic paint containing composition comprising the steps of adding to the organic paint containing composition an effective amount of an organic nitrogen containing formaldehyde fixating agent. Suitable nitrogen fixating compositions are nitro parafins, nitro alcohols, amino alcohols, and nitrogen heterocyclic compounds containing from 5 to 8 members in a ring and further containing from 1 to 3 nitrogen atoms per ring and optionally including oxygen atoms present in the ring.Type: GrantFiled: June 10, 1992Date of Patent: April 6, 1993Assignee: Grow Group, Inc.Inventors: Jerry A. Dieter, Chester P. Jarema
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Patent number: 5149728Abstract: The invention relates to blends of polyarylene sulfides, phenolic resin nitroarylates, glass fibers and optionally other fillers (additives). The blends are distinguished by good mechanical properties.Type: GrantFiled: August 5, 1991Date of Patent: September 22, 1992Assignee: Bayer AktiengesellschaftInventors: Burkhard Kohler, Hans-Detlef Heinz, Klaus Reinking
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Patent number: 5140058Abstract: Described is a method of decreasing the formaldehyde content in an organic paint containing composition comprising the steps of adding to the organic paint containing composition an effective amount of an organic nitrogen containing formaldehyde fixating agent. Suitable nitrogen fixating compositions are nitro parafins, nitro alcohols, amino alcohols, and nitrogen heterocyclic compounds containing from 5 to 8 members in a ring and further containing from 1 to 3 nitrogen atoms per ring and optionally including oxygen atoms present in the ring.Type: GrantFiled: December 23, 1991Date of Patent: August 18, 1992Assignee: Grow Group, Inc.Inventors: Jerry A. Dieter, Chester P. Jarema
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Patent number: 5122555Abstract: Polyolefins are stabilized against UV-deterioration by mixing therewith a hindered C-nitro compound having a molecular weight above 500. In a preferred embodiment the hindered C-nitro compound is a nitrated polyolefin. A conventional UV-stabilizer, such as a substituted benzophenone or a hindered piperidine, may be used in combination with the hindered C-nitro compound.Type: GrantFiled: August 2, 1990Date of Patent: June 16, 1992Assignee: Akzo NVInventors: Gerald Scott, Sahar Al-Malaika, Liyanaarachchige M. Keerthi-Tillekratne
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Patent number: 5098957Abstract: There is disclosed a method for grafting C-nitro compounds onto preformed polymers. In the method a hindered C-nitro compound containing at least one polymerizable unsaturated group is reacted with a polymer in the presence of free radicals to thereby graft the C-nitro compound onto the polymer. The process has the advantages of being convenient, economical and applicable to conventional polymer processing steps. In a preferred embodiment, polymer stabilizing additives are prepared by the process in the form of masterbatches of polymer containing high concentrations of C-nitro compounds grafted thereon.Type: GrantFiled: August 7, 1989Date of Patent: March 24, 1992Assignee: AKZO NVInventors: Gerald Scott, Sahar Al-Malaika
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Patent number: 5093397Abstract: This invention relates to mixtures of polyarylene sulphides, nitroarylketo compounds, electron rich aromatic compounds, glass fibres and optionally other fillers (additives). The mixtures are distinguished by good mechanical properties.Type: GrantFiled: September 3, 1991Date of Patent: March 3, 1992Assignee: Bayer AktiengesellschaftInventors: Burkhard Kohler, Hans-Detlef Heinz, Joachim Doring, Wolfgang Russeler
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Patent number: 5086128Abstract: This invention relates to new high molecular weight arylene sulphide polymers which optionally additionally display improved resistance to UV radiation and are prepared by melting arylene sulphide polymers, preferably PPS, with polynitro compounds or with mononitro compounds containing at least one other substituent capable of reacting with the arylene sulphide polymer.Type: GrantFiled: September 18, 1990Date of Patent: February 4, 1992Assignee: Bayer AktiengesellschaftInventors: Hans-Detlef Heinz, Burkhard Kohler, Rolf-Volker Meyer, Klaus Reinking, Alexa Sommer
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Patent number: 5036122Abstract: An adhesive composition for bonding metal to natural or synthetic rubber, composed of a latex, an aromatic nitroso compound, and a polymaleimide compound. The adhesive composition may be formed by ballmilling the latex and the polymaleimide compound into a masterbatch of the aromatic nitroso compound. Bonded articles may be formed by applying the adhesive composition to a metal and contacting the metal surface with the rubber to effect bonding.Type: GrantFiled: January 31, 1990Date of Patent: July 30, 1991Assignee: Lord CorporationInventors: Robert A. Auerbach, Doris B. Berry
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Patent number: 5028654Abstract: The invention seeks to improve the preheating resistance and high temperature resistance during vulcanization of a cement for the vulcanization of rubber onto metals. Such cements conventionally contain metal-binding polymers, dinitrosobenzene, organic solvents and, optionally, other components, such as acid-binding agents and reinforcing fillers. The goals of the invention are achieved by partial replacement of the usual metal-binding polymers by substituted aromatic compounds bearing two or more substituent groups having the formula --CH.sub.2 Br.Type: GrantFiled: April 6, 1989Date of Patent: July 2, 1991Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Willi Wuest, Wolf-Dieter Beiersdorf
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Patent number: 4996256Abstract: The invention relates to new, free-flowing arylene sulfide polymers (PAS) preferably phenylene sulfide polymers, which crystallize with delay, optionally additionally display improved resistance to UV radiation, and are prepared by mixing PAS with aromatic mononitro compounds in the melt, preferably with the application of shearing forces.Type: GrantFiled: May 30, 1989Date of Patent: February 26, 1991Assignee: Bayer AktiengesellschaftInventors: Hans-Detlef Heinz, Burkhard Kohler, Rolf-Volker Meyer, Klaus Reinking, Alexa Sommer
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Patent number: 4929661Abstract: The invention provides an aqueous coating composition curable at ambient temperature comprising a polyacetoacetate; a polyamino amide having an amine number of 60-1000; and either a nitroalkane, a formic acid ester, or an organic compound occurring in at least 2 tautomeric forms, and in one of the tautomeric forms a labile hydrogen atoms is linked to a carbon atom. A process of coating a substrate with such composition is also provided.Type: GrantFiled: October 20, 1989Date of Patent: May 29, 1990Assignee: Akzo N.V.Inventors: Arie Noomen, Petrus J. Peters
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Patent number: 4889879Abstract: Coherent thermoplastic aggregates with very high content of pulverized mineral materials, composed of the said materials, of polyolefin polymers and/or copolymers, and possibly also of various familiar adjuvants, characterized by the fact that, in order for them to have both a volumetric mass close to or at most equal to the theoretical volumetric mass of the pulverized mineral substances entering into their composition and an excellent compatibility with redispersion polymers, the polymers and/or copolymers entering into the composition of the said aggregates in presence of a fluidizing agent are chosen within the group of thermoplastics with melting and/or softening point at least equal to 60.degree. C. and index of fluidity at least 50 (measured according to the standard ASTM D 1238) of the polyolefin type, other than those containing a polar monomer.Type: GrantFiled: July 24, 1987Date of Patent: December 26, 1989Assignee: Pluess Staufer AGInventors: Henry Seinera, Patricia Luberne, Claude Stock, Patrick Trouve
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Patent number: 4842781Abstract: Disclosed is a colored polarizing film having excellent durability which comprises (a) an organic polymer film or sheet and (b) at least one dichroic dye having an azo, anthraquinone, thioindigo, perylene or phthalone structure containing no water-soluble group. Also disclosed is a method of making a colored polarizing film using an organic polymer film or sheet formed of a polyamide or polyester resin, which comprises the steps of (a) blending (preferably, dry blending) a dichroic dye with the resinous polymer in advance, (b) melting the resulting blend and forming it into a film, and then (c) stretching the film in at least one direction.Type: GrantFiled: January 11, 1988Date of Patent: June 27, 1989Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Tsutomu Nishizawa, Yasuyuki Yamada, Junichi Fujio, Shin Hosonuma
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Patent number: 4806579Abstract: A polymer matrix has grown therein in vitro and in situ non-centrosymmetric crystals of organic or inorganic compounds. The crystals are preferably orientated and may be used in electro-optical systems.Type: GrantFiled: January 23, 1987Date of Patent: February 21, 1989Assignee: The British Petroleum Co. p.l.c.Inventors: Paul D. Calvert, Raymond M. Ellul, Brian D. Moyle
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Patent number: 4799980Abstract: An improved multifunctional polyalkylene oxide binder is obtained by tailoring the cross-linking with a multifunctional polyol having a functionality of 3 or more and a molecular weight from about 12,000 to about 27,000 daltons. The binder is useful in forming castable propellants and plastic-bonded explosive compositions having high tensile strength and elongation and low volume dilatation.Type: GrantFiled: January 28, 1988Date of Patent: January 24, 1989Inventor: Russell Reed, Jr.
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Patent number: 4714725Abstract: Solutions of sulphonated polyaryletherketones in a solvent mixture of at least three liquids or low melting solids which are non-solvents or poor solvents for the polymer, can be used to produce asymmetric semi-permeable membranes. The polymer may be a polymer of(Ph.sup.1 --O--Ph.sup.2 --O--Ph.sup.1 --CO)and optionally(Ph.sup.1 --O--Ph.sup.1 --CO)and(Ph.sup.1 --O--Ph.sup.1 --O--Ph.sup.1 --CO)wherein Ph.sup.1 and Ph.sup.2 are respectively unsulphonated and sulphonated phenylene residues. The components of the solvent mixture have specified solubility parameters. A suitable solvent mixture is one formed from water, 1,4-dioxane and acetonitrile.Type: GrantFiled: April 6, 1987Date of Patent: December 22, 1987Assignee: Imperial Chemical Industries PLCInventors: Brian N. Hendy, John W. Smith
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Patent number: 4666947Abstract: Compositions based on ethylene/vinylacetate copolymers provided with self-extinguishing properties and suitable for the preparation of foamed materials, comprising for 100 parts by weight of the EVA copolymers:from 5 to 10 parts by weight of at least a bromodiphenylether containing at least 3 bromine atoms;from 2 to 4 parts by weight of a metal oxide selected from antimony, bismuth and tungsten oxides; andfrom 0.1 to 1 part by weight of a compound having general formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, equal or different from each other, can by hydrogen, chlorine, bromine, aliphatic hydrocarbon radicals containing from 1 to 6 carbon atoms, cyclohexyl or phenyl radicals, the nitro group or the --CN group.R.sub.5, R.sub.6, equal or different, can be hydrogen, chlorine, bromine, aliphatic hydrocarbon radicals containing from 1 to 3 carbon atoms, or alkoxy radicals containing 1 to 4 carbon atoms or ##STR2## groups, R.sub.7 being an alkyl radical containing from 1 to 3 carbon atoms.Type: GrantFiled: November 13, 1984Date of Patent: May 19, 1987Assignee: Montepolimeri S.p.A.Inventors: Corrado Brichta, Annibale Vezzoli, Pietro Origgi
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Patent number: 4642264Abstract: The object of the present invention are new thermoset resins having quickened curing, a process for their preparation, and their applications. The resins according to the invention consist, at least in part, of the products resulting from the polycondensation of one or more pyridine derivatives containing at least two methyl groups in the 2, 4 or 6 positions, with one or more aromatic dialdehydes, and the addition of one or more additives consisting of phenol compounds. These resins are used to the fabrication of composite materials.Type: GrantFiled: August 23, 1984Date of Patent: February 10, 1987Assignees: Societe Nationale des Poudres et Explosifs, Office National d'Etudes et de Recherches AerospatialesInventors: Marcel Ropars, Bertrand Bloch
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Patent number: 4622355Abstract: The radiation-induced conductivity of polymeric dielectrics with low electronic mobility is reduced by doping with electron donor or electron acceptor compounds at a level of 10.sup.15 to 10.sup.21 molecules of dopant/cm.sup.3. Polyesters, polyolefins, perfluoropolyolefins, vinyl polymers, vinylidene polymers, polycarbonates, polysulfones and polyimides can benefit from such a treatment. Usable dopants include 2,4,7-trinitro-9-fluorenone, tetracyanethylene, 7,7,8,8-tetracyanoquinodimethane, m-dinitrobenzene, 2-isopropylcarbazole, and triphenylamine.Type: GrantFiled: July 16, 1984Date of Patent: November 11, 1986Assignee: The United States of America as represented by the United States Department of EnergyInventors: Charles Arnold, Jr., Robert C. Hughes, R. Glen Kepler, Steven R. Kurtz
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Patent number: 4568711Abstract: Combinations of para-phenylene diamines and para di(nitroso) arenes act synergistically in guayule rubber-based compositions to protect them against oxidative degradation. A typically useful diamine is N-(1,3-dimethylbutyl)-N'-phenyl-phenyl-p-phenylene diamine and a useful arene is para-di(nitroso)benzene. Vulcanizable compositions, as well as articles made therefrom, are within the scope of the invention.Type: GrantFiled: December 7, 1984Date of Patent: February 4, 1986Assignee: The Firestone Tire & Rubber CompanyInventors: Edward L. Kay, Richard Gutierrez, Walter R. Hausch
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Patent number: 4560723Abstract: Cyanoacrylate adhesive compositions containing (a) a toughener (e.g., a core-shell copolymer such as an MBS, ABS, or MABS copolymer), the toughener optionally being treated to remove impurities which cause premature polymerization of cyanoacrylates, and (b) cyanoacrylate-compatible, toughener-compatible sustainer (e.g., an organic compound containing one or more unsubstituted or substituted aryl groups, such as diphenylmethane or dichlorobenzene). The inclusion of sustainer provides improved retention of toughness after heat aging of cured bonds of the adhesive.Type: GrantFiled: November 14, 1983Date of Patent: December 24, 1985Assignee: Minnesota Mining and Manufacturing CompanyInventors: George H. Millet, Edward R. Harrell, Charles D. Wright
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Patent number: 4525504Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability, said polyesters consisting of homopolyesters derived from a dicarboxylic acid component wherein at least a major portion of which is 1,4-cyclohexanedicarboxylic acid (or ester) having a trans isomer content of at least 65% and a glycol component wherein at least a major portion of which is 2,2,4,4-tetramethyl-1,3-cyclobutanediol and copolyesters thereof with modifying aliphatic glycols and/or aliphatic dicarboxylic acids, said polyesters being stabilized with the combination of at least one ultraviolet light stabilizing compound compatible with said polyester and at least one hindered amine light stabilizer having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.Type: GrantFiled: October 24, 1983Date of Patent: June 25, 1985Assignee: Eastman Kodak CompanyInventors: John C. Morris, Joseph S. Zannucci
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Patent number: 4524165Abstract: Disclosed are stabilized polyester compositions having significantly improved weatherability. These polyesters consist of copolyesterethers derived from a dicarboxylic acid component comprising about 80-100 mole % 1,4-cyclohexanedicarboxylic acid having a trans isomer content of at least 70% and about 0-20 mole % of a second dicarboxylic acid and a glycol component comprising about 70-95 mole % 1,4-cyclohexanedimethanol and about 5-30 mole % of a polyalkylene ether glycol having a molecular weight of about 600 to about 3000. The copolyesterether compositions further comprise a stabilizing effective amount of the combination of (1) at least one hindered phenolic antioxidant, (2) at least one ultraviolet light stabilizing compound compatible with said copolyesterether and (3) at least one hindered amine light stabilizing compound having the formulae ##STR1## the groups shown as R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently selected from various substituents.Type: GrantFiled: October 24, 1983Date of Patent: June 18, 1985Assignee: Eastman Kodak CompanyInventors: Harry R. Musser, Thomas H. Strickland, Joseph S. Zannucci
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Patent number: 4478967Abstract: Surfactants which are blocked against surfactant action (identified herein as "photolabile blocked surfactants") by a photolabile protective or masking group but which, on exposure to actinic radiation, become unblocked are provided. Coating compositions in which surfactant is formed on irradiation are provided by blending the photolabile blocked surfactant with polymeric film-forming materials.Compositions containing the photolabile blocked surfactants are useful when employed as protective coatings on various substrates or as the adhesive in a pressure sensitive adhesive tape. Although initially well adhering to a substrate, such compositions may be readily removed from the substrate following exposure of the same to suitable radiation which unblocks the surfactant to permit it to regain its surfactant activity.Type: GrantFiled: August 11, 1980Date of Patent: October 23, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventors: Gilbert L. Eian, John E. Trend
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Patent number: 4460717Abstract: A resin coated sand for shell-molding foundry operations having improved shake-out properties for molds prepared therefrom is disclosed. Also disclosed are methods of producing said sand. The foundry aggregates or sand are coated with a phenolic resin containing from 0.2 to 40 parts of an aromatic nitro compound per 100 parts of phenolic resin. The resin may be a novolac type, a resole type or a mixture of the two types of phenolic resins. Suggested aromatic nitro compounds are nitrophenols, dinitrophenols and nitronaphthalenes. The process is extremely useful for coating lower melting temperature metals such as aluminum and magnesium.Type: GrantFiled: June 16, 1983Date of Patent: July 17, 1984Assignee: Sumitomo Durez Company, Ltd.Inventors: Yukio Saeki, Shigeru Nemoto, Yukio Tokunaga
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Patent number: 4419473Abstract: A polyolefin plastic composition is provided having improved transparency, which comprises:(a) a major portion of a linear, low density polyethylene polymer;(b) a di-acetal of sorbitol and an aromatic aldehyde in an amount sufficient to improve transparency characteristics; and(c) a di-acetal decomposition inhibitor in an amount sufficient to inhibit decomposition of said di-acetal.Type: GrantFiled: May 20, 1982Date of Patent: December 6, 1983Assignee: Milliken Research CorporationInventor: Robert L. Mahaffey, Jr.
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Patent number: 4413090Abstract: A cyanoethylated resin to which adhesive properties and high dielectric constant are imparted by cyanoethylating a C.sub.2 -C.sub.4 olefin-vinyl alcohol copolymer, which is suitable for use as a dielectric material and an adhesive.Type: GrantFiled: April 6, 1982Date of Patent: November 1, 1983Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Masuhiro Shoji, Teruo Sakagami, Naohiro Murayama
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Patent number: 4410601Abstract: A process for producing a colloidal solution of a curable resin which comprises:blending (a) 5 to 90% by weight of a polyfunctional maleimide component and (b) 95 to 10% by weight of at least one thermosetting resin,heating them to form a composition, andblending the resulting composition with at least one low boiling point solvent having a boiling point of more than room temperature and less than 150.degree. C., in which the thermosetting resin is rich soluble, but the maleimide component is poor soluble, thereby forming a colloidal solution of a curable resin is disclosed. The colloidal solution is used as a coating, as an impregnating agent for a coil, or for preparing prepreg.Type: GrantFiled: December 21, 1981Date of Patent: October 18, 1983Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Morio Gaku, Nobuyuki Ikeguchi, Hidenori Kimbara
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Patent number: 4395497Abstract: A process for the preparation of electrically conductive heteropolyphenylenes, wherein from 0.5 to 5 per cent by weight of an activating additive is introduced, in the absence of moisture and of oxygen, into a heteropolyphenylene of the general formula ##STR1## where X is O, S, Se, SO or SO.sub.2 and Y has one of the meanings given for X or is NH, CH.sub.2, CO or C.sub.6 H.sub.4, and n is from 2 to 250. The activating additive is preferably one of the compounds AsF.sub.5, SbF.sub.5, UF.sub.6, HClO.sub.4, NO.sup.+ SbF.sub.6.sup.-, NO.sub.2.sup.+ SbF.sub.6.sup.-, NO.sup.+ PF.sub.6.sup.-, SbCl.sub.5, NO.sub.2.sup.+ PF.sub.6.sup.-, NO.sup.+ BF.sub.4.sup.-, NO.sup.+ ClO.sub.4.sup.-, (CF.sub.3).sub.2 SO.sub.4, 2,4,6-trinitrophenol, 2,4,6-trinitrophenylsulfonic acid and 2,4,6-trinitrophenylcarboxylic acid, or is sodium, potassium, rubidium, cesium, calcium or barium or one of their amides, the latter being added, if appropriate, in tetrahydrofuran, dimethoxyglycol, anthracene, naphthalene or 2-methylstyrene.Type: GrantFiled: June 15, 1981Date of Patent: July 26, 1983Assignee: BASF AktiengesellschaftInventors: Herbert Naarmann, Dieter Naegele, Klaus Penzien, Johannes Schlag
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Patent number: 4360620Abstract: Stable, free-flowing dispersions in organic liquids of rubbers in the form of discrete particles having an average diameter of from 100 to 3,000 nm which contain: A--as rubber, from 1 to 20% by weight, based on the total dispersion, of a crosslinked diene rubber or a crosslinked, rubber-like acrylate polymer; B--from 0 to 15% by weight, based on the total dispersion, of water in the form of a water-in-oil emulsion; C--as the continuous organic phase, from 99 to 45% by weight, based on the total dispersion, of a mixture of from 95 to 60% by weight of a liquid aliphatic hydrocarbon having up to 20 carbon atoms; or C.sub.6 -C.sub.12 aromatic hydrocarbon or a halogen derivative thereof and from 5 to 40% by weight of a C.sub.1 -C.sub.12 alkanol, a ketone containing up to 8 carbon atoms, a formamide or a nitrile containing up to 6 carbon atoms, and a process for their manufacture.Type: GrantFiled: July 17, 1981Date of Patent: November 23, 1982Assignee: Bayer AktiengesellschaftInventors: Christian Lindner, Lothar Liebig, Karl-Heinz Ott