With Nonketone- Or Nonphenolic-aldehyde Or Derivative As A Reactant Patents (Class 528/127)
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Patent number: 5955564Abstract: This invention relates to new blue anthraquinone colorants having Formula I ##STR1## wherein R and R1 are the same or different and are selected from hydrogen and unsubstituted or substituted C1-C6 alkyl, C3-C7 cycloalkyl 2-furyl, 2-thienyl, or phenyl; R2 is aryl; X is a group selected from hydroxy, C1-C6 alkanolyloxy, carboxy, C1-C6 carbalkoxy and carbamoyloxy.The colorants are useful for copolymerizing into polymers such as polyesters and polyurethanes. In particular, they are advantageous for preparing colored sulfopolyesters which are useful for coloring human hair.Type: GrantFiled: November 21, 1997Date of Patent: September 21, 1999Assignee: Eastman Chemical CompanyInventors: Max Allen Weaver, James John Krutak, Sr., Clarence Alvin Coates, Jr.
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Patent number: 5889134Abstract: An organozinc species, useful in the reactions of aldehydes and ketones, is a reaction product of a) a biphenyl compound having one or more hindered 2,2'-substituted biphenyl subunits and b) an organozinc compound, such as diethylzinc. The organozinc species catalyzes the reduction of a ketone by a borane, as well as the epoxidation of .alpha.,.beta.-unsaturated compounds by an oxidizing agent, such as O.sub.2 or an alkyl hydroperoxide. The biphenyl compound may be chiral and may catalyze the formation of optically active reaction products.Type: GrantFiled: August 26, 1997Date of Patent: March 30, 1999Assignee: North Dakota State UniversityInventors: Lin Pu, Wei-Sheng Huang, Qiao-Sheng Hu
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Patent number: 5807960Abstract: A method is provided for the preparation of polyquinoline polymers based on Friedlander condensation polymerization. The method comprises mixing monomers which, when polymerized, form a polyquinoline polymer, together with a catalyst and a solvent, wherein the catalyst comprises an alkyl phosphate.Type: GrantFiled: April 28, 1997Date of Patent: September 15, 1998Assignee: Hitachi Chemical Co., Ltd.Inventor: Matthew L. Marrocco, III
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Patent number: 5753783Abstract: Disclosed is a process which comprises reacting a polymer of the general formula ##STR1## wherein x is an integer of 0 or 1, A is one of several specified groups, such as ##STR2## B is one of several specified groups, such as ##STR3## or mixtures thereof, and n is an integer representing the number of repeating monomer units, with an acetyl halide and dimethoxymethane in the presence of a halogen-containing Lewis acid catalyst and methanol, thereby forming a haloalkylated polymer. In a specific embodiment, the haloalkylated polymer is then reacted further to replace at least some of the haloalkyl groups with photosensitivity-imparting groups. Also disclosed is a process for preparing a thermal ink jet printhead with the aforementioned polymer.Type: GrantFiled: August 28, 1997Date of Patent: May 19, 1998Assignee: Xerox CorporationInventors: Timothy J. Fuller, Ram S. Narang, Thomas W. Smith, David J. Luca, Raymond K. Crandall
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Patent number: 5708123Abstract: Stable, electroactive material which when a potential is applied from the outside is subjected to one or more reversible redox reactions, for use in devices with an electrochromic display or another electrochromic color change or in batteries.The material comprises a condensed ring structure, the oxidized form of which is of the formula ##STR1## in which R.sub.1, R.sub.2, X, and A may have any meaning with the proviso that the condensed ring structure maintains the reversible properties.The material can be prepared by various processes and it is suited for use as electrochromic material for use in devices with an electrochromic display or as coating on windows because it presents a distinct and easily visible color change when it is subjected to a potential. In addition, the material is suited for use in rechargeable batteries because is possesses an excellent capacity and reversibility.Type: GrantFiled: June 26, 1995Date of Patent: January 13, 1998Assignee: NKT Research Center A/SInventors: Ib Johannsen, Mikkel J.o slashed.rgensen
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Patent number: 5677380Abstract: A planarizing material comprising a resin capable of having its practical temperature for a planarizing step set at a level lower than 200.degree. C., and a melamine-type heat-curing agent and/or an epoxy-type heat-curing agent.Type: GrantFiled: March 24, 1995Date of Patent: October 14, 1997Assignee: Tosoh CorporationInventors: Kosaburo Matsumura, Mitsumasa Akashi, Yoshitaka Tsutsumi, Masazumi Hasegawa
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Patent number: 5651817Abstract: When a cement dispersant comprising a polymer which is obtained by co-condensating monomers comprising monomer (A) and monomer (B) with formaldehyde, or a salt obtained by neutralizing the polymer, wherein the monomer (A) is an aromatic compound having, on the average, 1 to 300 mol per molecule of at least one member selected from the group consisting of oxyethylene group and oxypropylene group, and the monomer (B) is an aromatic compound having a carboxyl group; or another cement dispersant comprising a polymer which is obtained by co-condensating monomers comprising the above-described monomer (A), the above-described monomer (B) and monomer (C) which is an aromatic compound having a sulfonic acid group with formaldehyde, or a salt obtained by neutralizing the polymer is used as one component of a hydraulic composition, the fluidity of the hydraulic composition is maintained for a long time. Therefore, no trouble on transportation is caused during the force feeding of the hydraulic composition with a pump.Type: GrantFiled: December 14, 1995Date of Patent: July 29, 1997Assignee: Kao CorporationInventors: Fuzio Yamato, Haruyuki Satoh
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Patent number: 5621052Abstract: Novel aminoplast anchored UV stabilizers are provided. Compared to unanchored stabilizers, the anchored stabilizers disclosed herein have increased compatibility with coating resins and have reduced volatility due to higher molecular weights resulting from anchoring. A process for preparing the anchored stabilizers by the reaction of unanchored stabilizers with alkoxymethylated aminoplasts in a sulfuric acid medium is also provided. The unanchored stabilizers include 2-(2-hydroxyaryl)benzotriazoles, 2-hydroxybenzophenones, 2-(2-hydroxyaryl)-4,6-diaryl-1,3,5-triazines, salicylic acid derivatives, 2-hydroxyoxanilides, and blocked derivatives thereof as well as mixtures of two or more stabilizers. The aminoplasts include alkoxymethylated derivatives of glycolurils, melamines, and benzoguanamines.Type: GrantFiled: December 29, 1992Date of Patent: April 15, 1997Assignee: Cytec Technology Corp.Inventors: Jeno G. Szita, Paul S. Waterman
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Patent number: 5605986Abstract: Novel aminoplast anchored UV stabilizers are provided. Compared to unanchored stabilizers, the anchored stabilizers disclosed herein have increased compatibility with coating resins and have reduced volatility due to higher molecular weights resulting from anchoring. A process for preparing the anchored stabilizers by the reaction of unanchored stabilizers with alkoxymethylated aminoplasts in a sulfuric acid medium is also provided. The unanchored stabilizers include 2-(2-hydroxyaryl)benzotriazoles, 2-hydroxybenzophenones, 2-(2-hydroxyaryl)-4,6-diaryl-1,3,5-triazines, salicylic acid derivatives, 2-hydroxyoxanilides, and blocked derivatives thereof as well as mixtures of two or more stabilizers. The aminoplasts include alkoxymethylated derivatives of glycolurils, melamines, and benzoguanamines.Type: GrantFiled: May 23, 1995Date of Patent: February 25, 1997Assignee: Cytec Technology Corp.Inventors: Jeno G. Szita, Paul S. Waterman
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Patent number: 5563224Abstract: Novel aminoplast anchored UV stabilizers are provided. Compared to unanchored stabilizers, the anchored stabilizers disclosed herein have increased compatibility with coating resins and have reduced volatility due to higher molecular weights resulting from anchoring. A process for preparing the anchored stabilizers by the reaction of unanchored stabilizers with alkoxymethylated aminoplasts in a sulfuric acid medium is also provided. The unanchored stabilizers include 2-(2-hydroxyaryl)benzotriazoles, 2-hydroxybenzophenones, 2-(2-hydroxyaryl)-4,6-diaryl-1,3,5-triazines, salicylic acid derivatives, 2-hydroxyoxanilides, and blocked derivatives thereof as well as mixtures of two or more stabilizers. The aminoplasts include alkoxymethylated derivatives of glycolurils, melamines, and benzoguanamines.Type: GrantFiled: May 23, 1995Date of Patent: October 8, 1996Assignee: Cytec Technology Corp.Inventors: Jeno G. Szita, Paul S. Waterman
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Patent number: 5334692Abstract: New, highly branched polyphosphonates which have a greatly improved flame retardant action compared with known polyphosphonates which are suitable as additives for plastics. In addition the new polyphosphonates may be incorporated in plastics as stabilizers with excellent migration properties.Type: GrantFiled: November 24, 1993Date of Patent: August 2, 1994Assignee: Bayer AktiengesellschaftInventors: Bernhard Hess, Wolfgang Schulz-Schlitte, Jurgen Kirsch, Dieter Freitag, Uwe Arndt, Hans-Georg Gehrke, Klaus Zander
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Patent number: 5320886Abstract: This invention relates primarily to organofunctional monomers, predominantly dimethacrylates and/or diacrylates containing one or more (predominantly two carboxyl groups, with moieties that provide sufficient affinity with water to allow any desired amount of water and/or miscible fugitive solvents to be mixed homogeneously with these monomers and formulations containing them. The activity of water in the monomer formulations can be adjusted so that it is equal to the water activity in biological tissues. This promotes biocompatibility and enhances the adhesive characteristics of polymers prepared from these formulations. Probability statistics are disclosed that optimize the compositions of polymer reaction products.Type: GrantFiled: November 14, 1991Date of Patent: June 14, 1994Assignee: American Dental Association Health FoundationInventor: Rafael L. Bowen
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Patent number: 5288822Abstract: Polyketone polymers can be stabilized and rendered more processable by the inclusion of a liquid crystalline diglycidyl compound, e.g., the diglycidyl ether of a 1,4-bis(p-hydroxybenzoyloxy) cyclohydrocarbon.Type: GrantFiled: January 14, 1992Date of Patent: February 22, 1994Assignee: Akzo nvInventors: Jagadish C. Goswami, Ki-Soo Kim
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Patent number: 5247050Abstract: A new class of polymers is provided as well as the monomers used for their preparation. The polymers provided in accordance with practice of the present invention include repeating units comprising one or more quinoline groups, wherein at least a portion of the repeating units includes a hexafluoroisopropylidene (6F) group or a 1-aryl-2,2,2-trifluoroethylidene (3F) group, or both.The hexafluoroisopropylidene group is referred to herein as a "6F" group and has the following structure: ##STR1## The "6F" group includes a tetravalent carbon atom bound to two trifluoromethyl moieties with its other two bonds forming linkages in the polymer chain.the 1-aryl-2,2,2-trifluoroethylidene group is referred to herein as "3F" group and has the following structure: ##STR2## wherein Ar' is an aryl group. The "3F" group comprises a tetravalent carbon atom bound to one trifluoromethyl moiety and one aryl group with its other two bonds forming linkages in the polymer chain.Type: GrantFiled: August 13, 1991Date of Patent: September 21, 1993Assignee: Maxdem IncorporatedInventor: Neil H. Hendricks
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Patent number: 5221730Abstract: Disclosed are melt-processable wholly aromatic polyesters prepared from terephthalic acid, 2,6-naphthalenedicarboxylic acid, and hydroquinone.Type: GrantFiled: November 16, 1990Date of Patent: June 22, 1993Assignee: Eastman Kodak CompanyInventors: John C. Morris, Winston J. Jackson, Jr., James R. Bradley
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Patent number: 5116934Abstract: Polyimidazoles (Pl) are prepared by the aromatic nucleophilic displacement reaction of di(hydroxyphenyl)imidazole monomers with activated aromatic dihalides or activated aromatic dinitro compounds. The reactions are carried out in polar aprotic solvents such as N,N-dimethylacetamide, sulfolane, N-methylpyrrolidinone, dimethylsulfoxide, or diphenylsulfone using alkali metal bases such as potassium carbonate at elevated temperatures under nitrogen. The di(hydroxyphenyl)imidazole monomers are prepared by reacting an aromatic aldehyde with a dimethoxybenzil or by reacting an aromatic dialdehyde with a methoxybenzil in the presence of ammonium acetate. The di(methoxyphenyl)imidazole is subsequently treated with aqueous hydrobromic acid to give the di(hydroxyphenyl)imidazole monomer.Type: GrantFiled: July 19, 1991Date of Patent: May 26, 1992Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: John W. Connell, Paul M. Hergenrother
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Patent number: 5047496Abstract: This invention relates to a process for the preparation of high molecular weight aromatic polyethersulphones from diphenols and dihalogenoaryls, characterized in that N-alkylated acid amides are used as solvents and at the same time for the azeotropic removal of the water of reaction.Type: GrantFiled: June 13, 1989Date of Patent: September 10, 1991Assignee: Bayer AktiengesellschaftInventors: Thomas Eckel, Karl Fuhr, Karl-Heinz Ott
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Patent number: 5043411Abstract: The present invention generally relates to a thermosettable cyanate ester resin composition which contains a fortifier that is the reaction product of an epoxy and an aromatic reactant selected from an aromatic amine and an aromatic amide. Thermoset cyanate ester resin compositions of the present invention have improved flexural strength and/or flexural modulus. The compositions of the present invention may be used to prepare circuit boards or molded parts.Type: GrantFiled: May 14, 1990Date of Patent: August 27, 1991Assignee: Nova Petrochemicals Inc.Inventors: Kam W. Ho, Adrian Cassola
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Patent number: 5023311Abstract: Disclosed is a novel, organic solvent-soluble novolak resin having a high molecular weight and an inherent viscosity of at least 0.1. This high-molecular-weight novolak resin can be prepared with a good reproducibility by reacting an aldehyde with a polyfunctional phenol at an aldehyde/polyfunctional phenol molar ratio of from 0.85 to 1.20 in the presence of an acid catalyst in a solution state. This high-molecular-weight novolak resin is valuable as the resin component of a radiation-sensitive resist.Type: GrantFiled: November 30, 1988Date of Patent: June 11, 1991Assignee: Toray Industries, Inc.Inventor: Takashi Kubota
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Patent number: 5017677Abstract: Polyquinoline copolymers and mixtures of polyquinoline homopolymers and copolymers having unique properties are provided. The copolymers can include random copolymers, block copolymers, and tri-block copolymers.Type: GrantFiled: November 18, 1988Date of Patent: May 21, 1991Assignee: Colorado State University Research FoundationInventor: John K. Stille
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Patent number: 4913974Abstract: Coated article has a thermoplastic substrate and a surface coating of a transparent ultraviolet light-resistant polymer which is the reaction product of a melamine compound, a polyol, and a multimeric benzotriazole compound. The coating of the coated article retains its UV absorbance during curing and exposure to elevated temperatures.Type: GrantFiled: December 31, 1987Date of Patent: April 3, 1990Assignee: General Electric CompanyInventors: James E. Moore, Arnold Factor, Peter M. Miranda
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Patent number: 4906730Abstract: A method is provided for enhancing the crystallization rate of certain polyetherimide to provide an improved molding mehod for making solvent resistant shaped thermoplastics. Polyetherimide blends containing crystallization rate enhancing agents such as bisimides or imide oligomers also are provided.Type: GrantFiled: May 6, 1988Date of Patent: March 6, 1990Assignee: General Electric CompanyInventors: Tohru Takekoshi, Patricia P. Anderson
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Patent number: 4857628Abstract: Branched, soluble, high-molecular-weight, thermoplastic polycarbonates having improved properties, and, in particular, suitable to the fabrication by blow-moulding, characterized by the presence in their structure of units deriving from the use in the synthesis of tris(4'-hydroxyaryl)-amino-S-triazines having the formula: ##STR1## wherein R.sub.1 and R.sub.2, equal to, or different from each other, indicate hydrogen, linear or branched C.sub.1-5 alkyl, or halogen (in particular, chlorine and bromine).Type: GrantFiled: July 2, 1986Date of Patent: August 15, 1989Assignee: Enichem Tecnoresine, S.p.A.Inventor: Alberto Petri
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Patent number: 4826947Abstract: A method of preparing a poly(arylene ether ketone) having a repeat unit ##STR1## comprising polymerizing a monomer system comprising (I) a monomer of the formula ##STR2## and (II) a monomer of the formula ##STR3## wherein R.sup.1 is p-phenylene, m-phenylene, or 4,4'-biphenylene;R.sup.2 is p-phenylene, m-phenylene, biphenylene, or naphthylidene; andX is a group displaceable under Friedel-Crafts polymerization conditions;in a polymerization medium comprising(a) a Lewis base present in an amount between about 0.05 and about 2 equivalents per equivalent of acid halide groups present in the monomer system and(b) a Lewis acid present in an amount of at least one equivalent per equivalent of carbonyl groups present, plus an equivalent per equivalent of Lewis base present, plus an amount effective to act as a catalyst for the polymerization.Type: GrantFiled: July 9, 1987Date of Patent: May 2, 1989Assignee: Raychem CorporationInventors: Viktors Jansons, John B. Mazzanti, Stephen Moore
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Patent number: 4804721Abstract: The resins resulting from converting the phenol-formaldehyde type condensation products of dicyclopentadiene-phenol adducts with selected aldehydes and ketones to their corresponding vinylbenzyl ethers are an excellent matrix in which to embed fibers to produce a composite. Such resins, especially as a blend of materials with varying molecular weight distribution, are amorphous materials whose glass transition temperature is well under the curing temperature, and whose solubility permits solutions with high solids content so as to afford coatings with high resin content. The extensively crosslinked polymer resulting from thermal, photochemical, or free radical initiated polymerization has excellent thermal and electrical properties for use in multilayer circuit boards.Type: GrantFiled: November 30, 1987Date of Patent: February 14, 1989Assignee: Allied-Signal Inc.Inventors: Joseph J. Zupancic, Jeffrey P. Conrad
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Patent number: 4797465Abstract: Wholly aromatic mesomorphic polyesters which form a liquid-crystalline fiber-forming melt below 320.degree. C. and are composed of(a) not less than 10 mol % of repeat units of the formula I ##STR1## (b) a molar amount equivalent to the total amount of components (c) and (d) of repeat units of the formula II ##STR2## (c) from 3 to 20 mol % of repeat units of the formulae III and/or IV ##STR3## and (d) from 5 to 30 mol % of repeat units of the formula V ##STR4## the molar proportions of components a, b, c and d adding up to 100 mol % in each case, the preparation thereof and moldings and coatings prepared therefrom.Type: GrantFiled: December 4, 1986Date of Patent: January 10, 1989Assignee: BASF AktiengesellschaftInventors: Michael Portugall, Gerd Blinne, Hans-Josef Sterzel
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Patent number: 4754068Abstract: 1,3-Bis(3-aminophenoxy)-5-halogenobenzenes represented by the formula (I): ##STR1## wherein X is a chlorine or bromine atom, are novel compounds and can be prepared by reacting trihalogenobenzenes represented by the formula (II): ##STR2## wherein X.sub.1, X.sub.2 and X.sub.3 are each a chlorine or bromine atom, with 3-aminophenol in the presence of a dehydrohalogenating agent.Type: GrantFiled: December 15, 1986Date of Patent: June 28, 1988Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Keizaburo Yamaguchi, Yukihiro Yoshikawa, Yoshimitsu Tanabe, Kenichi Sugimoto, Akihiro Yamaguchi
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Patent number: 4731429Abstract: Described herein are novel poly(aryl ether ketones) which display unique and outstanding high temperature properties, a unique blending behavior and excellent fabricability characteristics.Type: GrantFiled: June 17, 1985Date of Patent: March 15, 1988Assignee: Amoco CorporationInventors: Lee P. McMaster, Paul A. Winslow
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Patent number: 4722991Abstract: A terpolymer is prepared from phenol, furfuryl alcohol and formaldehyde wherein a substantial amound of the furfuryl alcohol is catalytically reacted by means of a water soluble multivalent metal salt catalyst, and wherein the reaction is carried out under essentially hydrous conditions.Type: GrantFiled: May 23, 1986Date of Patent: February 2, 1988Assignee: Acme Resin CorporationInventor: David R. Armbruster
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Patent number: 4709159Abstract: A capacitance multiplier circuit is disclosed which is fabricated using integrated circuit techniques comprising an inverted multiple collector transistor structure wherein a first one of the multiple collectors is electrically shorted to the base of the transistor to form a current mirror. The collector areas between the first collector and a second one of the multiple collectors are area ratioed to provide a multiplication factor, which is determined by the ratio between the areas of the two collector regions. The capacitance value formed between the junction of the base and the second collector regions is multiplied by this multiplication factor to produce an effective capacitance at the second collector. The multiplication factor is independent to process and temperature variations.Type: GrantFiled: July 23, 1981Date of Patent: November 24, 1987Assignee: Motorola, Inc.Inventor: Wilson D. Pace
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Patent number: 4656240Abstract: Polyazomethines having a high electrical conductivity obtained by polycondensation reaction of bicarbonyl compounds with aromatic diamines of formula: H.sub.2 N--Ar--CH.sub.2 --Ar--NH.sub.2, in which Ar is an aryl group optionally substituted, and by subsequent oxidation capable of transforming at least in part, the methylene group of the amine into a carbonyl group.The present invention relates to new electrically conductive polymers belonging to the class of the polyazomethines having high conductivity values, and to the process for preparing the same.Type: GrantFiled: December 19, 1984Date of Patent: April 7, 1987Assignee: Montedison, S.p.A.Inventors: Furio Bossi, Cornelio Caldo
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Patent number: 4608431Abstract: A method for making polyimide polymers is provided by effecting reaction between an aliphatically unsaturated imide, such as maleimide, formaldehyde, and an organic polyamine, for example trimethylene bis(4-aminobenzoate), for example in refluxing ethanol. The polyimides produced by the simple one-step method are pure, and exhibit superior toughness, and reduced shrinkage upon cure by heating. The new product are useful as molding compounds, laminating resins, and the like, being especially suitable for airplane parts, advanced composites, high performance adhesives and printed circuit boards.Type: GrantFiled: January 29, 1985Date of Patent: August 26, 1986Assignee: American Cyanamid Co.Inventor: Dalip K. Kohli
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Patent number: 4555562Abstract: A polyurethane elastomer product formed by curing a mixture of an NCO terminated urethane prepolymer and a polyhydroxyalkylphosphine oxide. The polyhydroxyalkyl phosphine curative is a compound of the class having the formula: ##STR1## wherein R is alkylene of 3 to 6 carbon atoms, R.sub.1 is alkyl of 2 to 10 carbon atoms, cycloalkyl of 6 to 12 carbon atoms and n is an integer of 2 to 3. Exemplary polyhydroxyalkyl phosphine curatives are (HOCH.sub.2 CH.sub.2 CH.sub.2).sub.2 P(O)--C.sub.4 H.sub.9 --sec. and (HOCH.sub.2 CH.sub.2 CH.sub.2).sub.3 P(O).Type: GrantFiled: February 27, 1984Date of Patent: November 26, 1985Assignee: FMC CorporationInventors: Fui-Tseng H. Lee, Joseph Green
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Patent number: 4537947Abstract: Aromatic polyimides with various functional end-groups such as --CH.dbd.CH.sub.2, --C.tbd.CH, --CN and --CHO are chain-extended (molecular weight increased) by reacting the functional groups with aromatic bis-dipoles. A representative bis-dipole is 1,4-benzene-dinitrile oxide. These polyimides can be shaped and formed prior to chain extending.The aromatic polyimides appropriate for chain-extending are formed by the reaction of aromatic dianhydrides, aromatic amines and monoamines which contain the functional groups.Type: GrantFiled: March 14, 1975Date of Patent: August 27, 1985Assignee: University of Notre Dame du LacInventor: Gaetano F. D'Alelio
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Patent number: 4500691Abstract: Phenol-novolaks containing amino groups of formulas VI and VII ##STR1## wherein R.sup.1 is halogen, nitro, alkyl, alkoxy or phenyl, R.sup.2 is hydrogen, alkyl, cycloalkyl, phenyl or furfuryl, R.sup.3 is hydrogen or alkyl, R.sup.4 and R.sup.5 independently are alkyl, halogen, nitro or cyano, and x is 1 to 8, are obtained by reacting the corresponding phenol-novolak with an aldehyde or ketone of formula II ##STR2## and with a substituted aniline of formula III or IV ##STR3## in a molar ratio of 1 mol of phenol-novolak to 2 mols of compound of formula II and to 2 mols of compound of formula III or IV in an acid medium at a pH value of 0.5 to 3.0. The phenol-novolaks containing amino groups are useful curing agents for epoxy resins and are also suitable as starting compounds for the preparation of epoxy resins.Type: GrantFiled: January 6, 1984Date of Patent: February 19, 1985Assignee: Ciba-Geigy CorporationInventors: Friedrich Stockinger, Theobald Haug
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Patent number: 4482683Abstract: Sulfur-containing polymers, such as polyphenylene sulfide are stabilized from releasing sulfur-containing exhaust gases by adding an additive polymer having at least one reactive radical selected from the group consisting of amino radicals, amido radicals, imido radicals, and keto radicals therein, and which is of approximate the same thermal stability as the sulfur-containing polymer, to such sulfur-containing polymer. In other embodiments of the invention, sulfur-stabilization is also achieved by incorporating suitable fundamental building blocks of the additive polymer into the sulfur-containing polymer chain in the form of reactive monomers. Further, in other embodiments, additive polymers or oligomers (so-called telecheles) having reactive radicals at their ends can be introduced into the sulfur-containing polymer chain as copolymers.Type: GrantFiled: December 1, 1983Date of Patent: November 13, 1984Assignee: Siemens AktiengesellschaftInventors: Ferdinand Quella, Hans-Friedrich Schmidt
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Patent number: 4403046Abstract: Binders for foundry core sand and other binder applications are produced from acetophenone.Type: GrantFiled: October 5, 1981Date of Patent: September 6, 1983Assignee: The Quaker Oats CompanyInventors: Hugh C. Anderson, James E. Doyle, Russell B. Lembke
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Patent number: 4359570Abstract: Disclosed are colored polyester compositions containing copolymerized anthraquinone dyes as colorants, which compositions may be used, for example, for food packaging and to mold colored beverage bottles. The copolymerized dyes are thermally stable at the processing temperatures, and are colorfast and nonextractable. The useful dyes have the general formula: ##STR1## wherein either or both of rings A and B may contain in any position thereon one or two groups of the formula ##STR2## R and R.sup.3 each is hydrogen, lower alkyl or lower hydroxyalkyl; R.sup.1, R.sup.2, R.sup.4 and R.sup.5 each is hydrogen or 1-3 substituents such as lower alkyl, lower alkoxy, phenyl, Cl, Br, or the like; X is --S-- or --NH--; n is 1 or 2; m is 0, 1, or 2.Type: GrantFiled: October 26, 1981Date of Patent: November 16, 1982Assignee: Eastman Kodak CompanyInventors: Thomas G. Davis, Max A. Weaver
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Patent number: 4345054Abstract: A high-molecular-weight novolak type substituted phenolic resin having a number average molecular weight of at least 1500 is prepared by reacting (A) (i) a phenol comprised mainly of a bifunctional phenol or (ii) a low-molecular-weight novolak type substituted phenolic resin derived from this phenol and an aldehyde with (B) a chain extender selected from the group consisting of (i) a dimethylolated product of a bifunctional or trifunctional phenol, (ii) a low-molecular-weight resol type substituted phenolic resin derived from a phenol comprised mainly of a bifunctional phenol and an aldehyde, (iii) an aldehyde, (iv) a ketone, (v) a diol and (vi) a dihalide in the presence of an acid catalyst, with the proviso that if the reactant (A) is the phenol (i), the chain extender is the resol type substituted phenolic resin (ii).Type: GrantFiled: December 29, 1980Date of Patent: August 17, 1982Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Nobuyuki Takeda, Tadao Iwata
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Patent number: 4333809Abstract: The present invention is directed to cross-linkable, thermoplastically processable, segmented, high molecular weight polycarbonate elastomers, to the process for their preparation and to their use in their cross-linked form.Type: GrantFiled: July 22, 1980Date of Patent: June 8, 1982Assignee: Bayer AktiengesellschaftInventors: Manfred Schreckenberg, Dieter Freitag, Hans-Heribert Burgdorfer, Gunther Lehnert, Siegfried Adelmann, Hans Rudolph
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Patent number: 4320042Abstract: Binders for foundry core sand and other binder applications are produced from acetophenone.Type: GrantFiled: December 17, 1980Date of Patent: March 16, 1982Assignee: The Quaker Oats CompanyInventors: Hugh C. Anderson, James E. Doyle, Russell B. Lembke
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Patent number: 4319016Abstract: An ultraviolet-absorbing amino compound; a paint containing the aforesaid ultraviolet-absorbing amino compound; and a coated article having on its surface a coated film containing the aforesaid ultraviolet-absorbing amino compound are provided. The ultraviolet-absorbing amino compound is produced by reacting (a) a compound having a light absorption maximum within a wavelength region of 300 to 400 m.mu. and containing a mono-, di- or tetra-hydroxyphenyl group, (b) at least one compound containing a amino group and (c) formaldehyde, in the presence of at least one alcohol. The ultraviolet-absorbing amino compound of this invention is used in resin products which undergo photodegradation by ultraviolet light, for example, paints or molded articles of resins, and is especially effective for use in thermosetting synthetic resin paints.Type: GrantFiled: September 21, 1979Date of Patent: March 9, 1982Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kogyo Kabushiki Kaisha, Mitsui Toatsu Chemicals IncorporatedInventors: Moriji Kurobe, Ryusuke Tsuji, Eiichi Imao, Takayuki Masuyama, Eizi Nagata, Kazunori Kamada
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Patent number: 4288631Abstract: Certain 3-alkylhydroxybenzophenone derivatives, such as 2,4-dihydroxy-3-methylbenzophenone have been found to be superior as UV stabilizers for a variety of organic polymeric substrates. Coating compositions of such stabilizers in organic resins, for example, melamine can be used to protect such polymeric substrates from the effects of exposure to UV radiation.Type: GrantFiled: December 5, 1979Date of Patent: September 8, 1981Assignee: General Electric CompanyInventor: Ta-Yen Ching
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Patent number: 4278787Abstract: Alternating copolyestercarbonate resins having repeating units of the formula: ##STR1## wherein R.sup.1 is meta-phenylene and R is independently an aromatic hydrocarbylene or inertly substituted aromatic hydrocarbylene, e.g., ##STR2## exhibit physical properties such as heat resistance, clarity and impact strength that are superior to the comparable properties of corresponding random copolymers and exhibit physical properties such as impact strength and processability that are superior to the comparable properties of corresponding alternating copolyestercarbonates wherein R.sup.1 is para-phenylene. Such resins are useful for making transparent tough films and molded articles having high heat resistance.Type: GrantFiled: July 7, 1980Date of Patent: July 14, 1981Assignee: The Dow Chemical CompanyInventors: Daniel J. Swart, Jacqueline S. Kelyman
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Patent number: 4241201Abstract: Phenolic novolak resins are described which are structurally characterized as having from about 55% to about 90% of the available theoretical paraphenyl linkages in the resin chain bridged to a phenyl group. The resin compositions of this invention provide extended resin stability at relatively low temperatures without significant adverse affect on the cure speed at the molding temperature. The resins are especially suited for use in runnerless injection or cold manifold molding processes, but can also be used in transfer, compression and injection molding processes.Type: GrantFiled: April 13, 1979Date of Patent: December 23, 1980Assignee: Hooker Chemicals & Plastics Corp.Inventor: Myron C. Annis
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Patent number: 4210732Abstract: Phenolic novolak resins are described which are structurally characterized as having from about 55% to about 90% of the available theoretical paraphenyl linkages in the resin chain bridged to a phenyl group. The resin compositions of this invention provide extended resin stability at relatively low temperatures without significant adverse affect on the cure speed at the molding temperature. The resins are especially suited for use in runnerless injection or cold manifold molding processes, but can also be used in transfer, compression and injection molding processes.Type: GrantFiled: April 13, 1979Date of Patent: July 1, 1980Assignee: Hooker Chemicals & Plastics Corp.Inventor: Myron C. Annis
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Patent number: 4197392Abstract: Ultraviolet resistant transparent coatings are provided formed of (A) a melamine nucleus compound, (B) a benzophenone and preferably (C) a polyol. The compositions are effective in protecting polycarbonate resins and other UV degradable materials.Type: GrantFiled: August 21, 1978Date of Patent: April 8, 1980Assignee: General Electric CompanyInventor: James E. Moore
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Patent number: 4187368Abstract: For the production of a powder-like furan resin use is made of a mixture of a ketone pertaining to the furan series, phenol-formaldehyde resin and, if desired, furfurol taken in a weight ratio of 10:3- 15:2-5 respectively. The mixture of said components is heated to a temperature within the range of from 130.degree. to 200.degree. C., whereupon the desired product is formed. The process may be conducted in the presence of a catalyst comprising a mixture of tin dichloride and hexamethylene diamine.The resulting powder-like furna resin is resistant against highly-aggressive media at a temperature of up to 120.degree. C.; it is also resistant against the effect of oxidizing agents at a temperature of up to 80.degree. C. Martens yield temperature of the powder-like furna resin of the present invention is as high as 300.degree. C. The resin yield is as high as 93%.Type: GrantFiled: June 26, 1978Date of Patent: February 5, 1980Inventors: Ildgam A. Bekbulatov, Juldash Mamatov, Gennady D. Varlamov, Shavkat Madaliev, Valery M. Gaibov
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Patent number: 4179553Abstract: Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: ##STR1## wherein X is represented by ##STR2## wherein R.sub.1 and R.sub.2 are independently selected from a group consisting of substituted or unsubstituted aliphatic, aryl, araryl, alkylaryl and heterocyclic radicals or R.sub.1 and R.sub.2 can be linked to form a cyclic radical and R.sub.3 is an aliphatic hydrocarbon radical or hydrogen, X' is a substituted or unsubstituted alkoxy, aryloxy, amino or mercapto substituent group or mixtures thereof which are compatible with an N-substituted amino substituent and are known in the state of the art of polyphosphazene technology; and 20.ltoreq.(w+y+z).ltoreq.50,000 per polymer and (y+z)>0.The polymers of the invention can be utilized to form protective films and can also be utilized in applications such as molding, coatings, foams and the like.Type: GrantFiled: November 3, 1978Date of Patent: December 18, 1979Assignee: The Firestone Tire & Rubber CompanyInventors: William L. Hergenrother, Adel F. Halasa
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Patent number: 4169937Abstract: A granular thermosetting composition free from a tendency to release dust and transformable into molded articles free from surface defects, is obtained by forming the composition into granules of from 2 to 8 mm in size and mixing said granules with from 0.5 to 3 wt.% of one or more substances, in liquid form, chosen from acetone, phenol, aniline and reaction products of phenol with styrene.Type: GrantFiled: December 7, 1976Date of Patent: October 2, 1979Assignee: Societa' Italiana Resine S.I.R. S.p.A.Inventors: Silvio Vargiu, Pier L. Manzoni, Mario Bernasconi, Antonio Parodi