N-(c=x)n, E.g., Urea, Etc. Patents (Class 524/211)
-
Patent number: 5763530Abstract: Stable compositions comprising a blend of at least two inverse emulsions, at least one of which is a polymeric microemulsion, provide effective flocculating performance over time. Methods for preparing stable emulsion blends use stabilizing amounts of aldehyde scavenger.Type: GrantFiled: November 12, 1996Date of Patent: June 9, 1998Assignee: Cytec Technology Corp.Inventors: Haunn-Lin Chen, Richard F. Rice, Louis Rosati, Paul S. Waterman
-
Patent number: 5705549Abstract: A rubber composition comprises a particular copolymer containing isobutylene unit, a paramethylstyrene unit and a parabromomethylstyrene unit; natural rubber and/or diene synthetic rubber; carbon black; and at least one hydrazide compound, and has a low value of tan .delta. at 60.degree. C. with maintaining tan .delta. at 0.degree. C. at a high level.Type: GrantFiled: April 15, 1996Date of Patent: January 6, 1998Assignee: Bridgestone CorporationInventor: Masahiro Hojo
-
Patent number: 5686508Abstract: An object of the present invention is to provide an ink, and ink jet recording method and apparatus using the ink which has excellent dispersion stability, discharge stability and recovery properties, and which can be kept in the weak alkali region even if it contains carbon black with low pH, which is generally considered to be difficult to handle and which can obtain a high-density image. The ink contains acid carbon black having a volatile content within the range 3.5 to 8% by weight, and a water-soluble resin having a weight average molecular weight within the range of 3,000 to 30,000, both of which are dissolved in an aqueous liquid medium, and a compound represented by the following formula (I), wherein the ratio by weight between the acid carbon black and the water-soluble resin is within the range of 3:1 to 10:1.R.sub.1 R.sub.2 NCONHCH.sub.2 CH.sub.2 OH (I)wherein R.sub.1 and R.sub.2 each is hydrogen or C.sub.n H.sub.2n OH, n is 2 or 3, with the proviso that R.sub.1 and R.sub.Type: GrantFiled: November 3, 1994Date of Patent: November 11, 1997Assignee: Canon Kabushiki KaishaInventors: Masako Shimomura, Hiromichi Noguchi
-
Patent number: 5684119Abstract: Directly shapeable clear solutions of polyamide imides and a method for preparing same are provided. The solutions are obtained by polycondensation in .gamma.-butyrolactone (.gamma.BL) in substantially stoichiometric proportions between toluylene diisocyanate and an aromatic acid anhydride, and by dilution in (.gamma.BL) to give a solution allowing them to be processed at a later stage. Yarns and fibers made from said solutions are also described.Type: GrantFiled: June 10, 1994Date of Patent: November 4, 1997Assignee: Rhone-Poulenc FibresInventors: Philippe Michaud, Jean Russo
-
Patent number: 5663225Abstract: A rubber composition including chloroprene rubber, 1-20 weight parts of at least one metal oxide chosen from the group consisting of zinc oxide and magnesium oxide per 100 weight parts of chloroprene rubber, 0.05-2.0 weight parts of a vulcanization accelerator, such as ethylene thiourea, per 100 weight parts of chloroprene rubber, 0.1-10.0 weight parts, and more preferably 0.5-5.0 weight parts, of bismaleimide per 100 weight parts of chloroprene rubber, and 0.1-3.0 weight parts of at least one vulcanization accelerator chosen from among the group consisting of thiazole vulcanization accelerators, thiuram vulcanization accelerators, and sulfenamide vulcanization accelerators per 100 weight parts of chloroprene rubber.Type: GrantFiled: July 8, 1996Date of Patent: September 2, 1997Assignee: Mitsuboshi Belting Ltd.Inventors: Kazutoshi Ishida, Satoshi Murakami, Yoshiaki Onaka
-
Patent number: 5643986Abstract: A composition containing 100 parts by weight of a soluble polyimidosiloxane obtained by polymerization and imidation of an aromatic tetracarboxylic acid component and a component comprising a diaminopolysiloxane, an aromatic diamine with a hydroxyl group and optionally another aromatic diamine, 1 to 50 parts by weight of an epoxy resin, and optionally, also 2 to 150 parts by weight of an inorganic filler such as mica, silica or barium sulfate, and an organic solvent. The composition is homogeneously soluble in organic solvents, and when formed into a protective film on a flexible wiring board it has high heat resistance, flexing resistance, adhesion and chemical resistance (against soldering flux and tin plating solutions).Type: GrantFiled: March 14, 1996Date of Patent: July 1, 1997Assignee: Ube Industries, Ltd.Inventors: Seiji Ishikawa, Hiroshi Yasuno, Masayuki Nakatani, Hiroyuki Fukuda, Shigeru Yamamoto
-
Patent number: 5605966Abstract: Microcapsules comprise a polymeric wall material and a polymeric core material which is suitable as a leveling agent for film formation by film-forming oligomers and polymers.Type: GrantFiled: December 13, 1993Date of Patent: February 25, 1997Assignee: BASF AktiensellschaftInventors: Bernhard Schuler, Georg Bobar, Tilmann Korth, Ottokar Flocken, Peter Gleich
-
Patent number: 5597856Abstract: Phase change inks capable of passing light therethrough are suitable for color overhead transparencies, as well as plain paper printing. A composition for the ink carrier comprises an unsaturated bis-amide as a transparency enhancer, a low viscosity monoamide as a thinner material, and a polyamide resin as a base and binder.Type: GrantFiled: September 24, 1993Date of Patent: January 28, 1997Assignee: Dataproducts CorporationInventors: Kelvin W. Yu, Susan Schnitzel
-
Patent number: 5569688Abstract: To a heat-curable silicone rubber composition comprising (a) an organopolysiloxane having at least two alkenyl groups in a molecule, (b) an organohydrogenpolysiloxane having at least two hydrogen atoms in a molecule, and (c) a platinum catalyst is added (d) ammonia or an ammonia precursor so that ammonia or ammonia precursor is present in an amount of 10 to 500 parts by weight of nitrogen per million parts by weight of the total of components (a), (b) and (c) in a cured product of the heat-curable silicone rubber composition. The composition cures into a silicone rubber having minimized compression set without a need for secondary vulcanization.Type: GrantFiled: October 20, 1994Date of Patent: October 29, 1996Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Noriyuki Meguriya, Takeo Yoshida
-
Patent number: 5545825Abstract: The present invention relates to furan resins having low levels of VOCs. The claimed furan resins are the reaction product of a source of ammonia and a first reaction product, said first reaction product being derived from the reaction between a source of reactable formaldehyde, a formaldehyde scavenger, and an acidic furan resin resulting from the polymerization reaction wherein at least one reagent is selected from the group consisting of the furan containing molecule having the general formula ##STR1## and its saturated analogs thereof having zero to one carbon-carbon double bonnets, wherein X and Y are independently comprised of organic molecular groups.Type: GrantFiled: January 6, 1995Date of Patent: August 13, 1996Assignee: Schuller International, Inc.Inventors: Thomas J. Taylor, William H. Kielmeyer, Carl A. Rude
-
Patent number: 5466757Abstract: A chlorinated ethylene-propylene copolymer having a chlorine content of 20 to 45% by weight and a Mooney viscosity (ML.sub.1+4, 100.degree. C.) of 10 to 150 is produced by chlorinating in two or three stages, by contact with chlorine gas in an aqueous suspension, an ethylene-propylene copolymer having a propylene content of 15 to 40% by weight, a melt flow index of 0.01 to 5.0 g/10 minutes, a melting peak as measured by differential scan calorimeter (DSC) of 80.degree. C. or more, a crystallinity as measured by X-rays of 3% or more, an index M.sub.W /M.sub.N of the distribution of molecular wieght, determined by gel permeation chromatography (GPC), of greater than 4, and a Mooney visocisty (ML.sub.1+4, 100.degree. C.) of 10 to 180.Type: GrantFiled: December 11, 1991Date of Patent: November 14, 1995Assignee: Showa Denko Kabushiki KaishaInventors: Naotoshi Watanabe, Tsuyoshi Masukawa, Kenji Ozaki, Noboru Moriwaki
-
Patent number: 5459183Abstract: The present invention relates to furan resins having low levels of VOCs. The claimed furan resins are the reaction product of a source of ammonia and a first reaction product, said first reaction product being derived from the reaction between a source of reactable formaldehyde, a formaldehyde scavenger, and an acidic furan resin resulting from the polymerization reaction wherein at least one reagent is selected from the group consisting of the furan containing molecule having the general formula ##STR1## and its saturated analogs thereof having zero to one carbon-carbon double bonnets, wherein X and Y are independently comprised of organic molecular groups.Type: GrantFiled: May 19, 1993Date of Patent: October 17, 1995Assignee: Schuller International, Inc.Inventors: Thomas J. Taylor, William H. Kielmeyer
-
Patent number: 5401790Abstract: Waterborne coating compositions comprising polymeric film-forming resins and about 0.1 to 5 percent by weight based on weight of resin solids of an oligomer containing from about two to four urethane, urea, or amide moieties per molecule and two or more moieties selected from the group consisting of hydroxyl and tertiary amine. The oligomer improves the smoothness of the resulting coating.Type: GrantFiled: March 31, 1994Date of Patent: March 28, 1995Assignee: PPG Industries, Inc.Inventors: James E. Poole, Roxalana L. Martin
-
Patent number: 5374305Abstract: The present invention relates to precursor coating compositions containing water and at least one organic solvent which are particularly suitable for being admixed with at least one supercritical fluid used as a viscosity reduction diluent and then spraying this resultant liquid mixture of supercritical fluid and precursor coating composition onto a substrate to be coated. Processes for spraying this precursor mixture are also disclosed.Type: GrantFiled: April 10, 1991Date of Patent: December 20, 1994Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Charles W. Glancy, David C. Busby
-
Patent number: 5362784Abstract: The present invention relates generally to compositions of polyalkylene imine ("PAI"), particularly polyethylene imine ("PEI") and polyester polymer(s) (including copolymers and derivatives thereof); such compositions can be used in producing films or devices which are capable of scavenging unwanted aldehydes. More specifically, the preferred compositions of the present invention comprise a PAI substantially discontinuous phase and a polyester or copolyester substantially continuous phase in a weight ratio of PAI to polyester polymer of about 0.001-30:100 which optionally also includes a binding agent.Type: GrantFiled: May 28, 1993Date of Patent: November 8, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Vincent Brodie, III, Donna L. Visioli
-
Patent number: 5354798Abstract: An engineering polyacetal resin composition comprising 0.05-20 parts by weight of a dispersant (B) and 5-40 parts by weight of a filler (C), and 100 parts by weight of a resin ingredient (A) which comprises 90-50% by weight of a polyacetal resin (a) and 10-50% by weight of a polyamide resin (b) having a melting point of up to 230.degree. C., a maximum particle diameter of 0.03-10 .mu.m and a maximum aspect ratio of up to 2, and is dispersed in a matrix of said polyacetal resin (a).Type: GrantFiled: August 16, 1991Date of Patent: October 11, 1994Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hiroshi Tsukahara, Masahiko Niino
-
Patent number: 5354803Abstract: A surfactantless, formaldehyde-free polyvinyl alcohol graft copolymer binder emulsion for non-woven products is prepared comprising: 12% to 35% of a fully hydrolyzed low or ultra low molecular weight PVOH and 65% to 88% of a vinyl and/or acrylic monomer which is graft copolymerized with the PVOH through emulsion polymerization.Type: GrantFiled: March 29, 1993Date of Patent: October 11, 1994Assignee: Sequa Chemicals, Inc.Inventors: Louis R. Dragner, William C. Floyd
-
Patent number: 5283277Abstract: A paint composition containing an inorganic pigment dispersed in an extended polymer composition is provided. The extended polymer composition which exhibits little or no loss of desirable physical properties contains a polymer having certain functional groups attached to the backbone and a chalcogenide of a certain formula, such as urea.Type: GrantFiled: October 7, 1991Date of Patent: February 1, 1994Assignee: Rohm and Haas CompanyInventor: Charles L. Kissel
-
Patent number: 5280060Abstract: A thermoplastic resin composition comprises:100 parts by weight of at least one polyamide resin, and0.01 to 20 parts by weight of at least one fluidity modifier selected from the group consisting of:Succinic anhydride,hexamethylenetetramine and1,12-diaminododecane.Type: GrantFiled: November 30, 1992Date of Patent: January 18, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroomi Abe, Takeshi Fujii, Kiyoshi Mitsui
-
Patent number: 5270121Abstract: Extended polymer compositions are provided which comprise polymers containing pendant functional groups of the formula: ##STR1## extended, i.e. admixed with a chalcogenide having the empirical formula ##STR2## wherein R.sub.1 is a divalent organic radical at least 3 atoms in length, X is organoacyl or cyano, A is a chalcogen, each of R.sub.9 and R.sub.10 is independently selected from hydrogen, NR.sub.11 R.sub.12, NR.sub.13 and monovalent organic radicals, at least one of R.sub.9 and R.sub.10 being NR.sub.11 R.sub.12 or NR.sub.13, each of R.sub.11 and R.sub.12 is independently selected from hydrogen and monovalent organic radicals, and R.sub.13 is a divalent organic radical. These compositions can be extended with significant proportions of the described chalcogenides with corresponding reductions in polymer concentration without significant loss of physical properties. The resulting combinations are particularly useful as binders and coatings.Type: GrantFiled: October 7, 1991Date of Patent: December 14, 1993Assignee: Rohm and Haas CompanyInventor: Charles L. Kissel
-
Patent number: 5264475Abstract: Extended polymer compositions are provided which comprise polymers containing pendant functional groups of the formula: ##STR1## extended, i.e. admixed with a chalcogenide having the empirical formula ##STR2## wherein R.sub.1 is a divalent organic radical at least 3 atoms in length, X is organoacyl or cyano, A is a chalcogen, each of R.sub.9 and R.sub.10 is independently selected from hydrogen, NR.sub.11 R.sub.12, NR.sub.13 and monovalent organic radicals, at least one of R.sub.9 and R.sub.10 being NR.sub.11 R.sub.12 or NR.sub.13, each of R.sub.11 and R.sub.12 is independently selected from hydrogen and monovalent organic radicals, and R.sub.13 is a divalent organic radical. These compositions can be extended with significant proportions of the described chalcogenides with corresponding reductions in polymer concentration without significant loss of physical properties. The resulting combinations are particularly useful as binders and coatings.Type: GrantFiled: October 7, 1991Date of Patent: November 23, 1993Assignee: Rohm and Haas CompanyInventor: Charles L. Kissel
-
Patent number: 5230950Abstract: Extended polymer compositions are provided which comprise polymers containing pendant functional groups of the formula: ##STR1## extended, i.e. admixed with a chalcogenide having the empirical formula ##STR2## wherein R.sub.1 is a divalent organic radical at least 3 atoms in length, X is organoacyl or cyano, A is a chalcogen, each of R.sub.9 and R.sub.10 is independently selected from hydrogen, NR.sub.11 R.sub.12, NR.sub.13 and monovalent organic radicals, at least one of R.sub.9 and R.sub.10 being NR.sub.11 R.sub.12 or NR.sub.13, each of R.sub.11 and R.sub.12 is independently selected from hydrogen and monovalent organic radicals, and R.sub.13 is a divalent organic radical. These compositions can be extended with significant proportions of the described chalcogenides with corresponding reductions in polymer concentration without significant loss of physical properties. The resulting combinations are particularly useful as binders and coatings.Type: GrantFiled: October 7, 1991Date of Patent: July 27, 1993Assignee: Rohm and Haas CompanyInventor: Charles L. Kissel
-
Patent number: 5225470Abstract: Acrylic hot melt pressure sensitive adhesive compositions having a good balance of tack, peel and creep resistance at ambient temperature combined with optical clarity and desirable melt viscosity at elevated temperatures are prepared by copolymerizing acrylic and methacrylic alkyl esters of a non-tertiary alcohol or optionally acids with polymerizable poly methacrylate based macromonomers. The resulting acrylic copolymer has a graft or comb structure in which the acrylic backbone has a low Tg and the pendant macromonomer side chains have a Tg above room temperature. Compounding those acrylic copolymers with tackifiers and plasticizers dramatically improves the balance of pressure sensitive adhesive properties while lowering melt viscosity into a desirable range. The invention provides significant property enhancements even for acrylic copolymers having poor initial peel and shear adhesive properties.Type: GrantFiled: February 22, 1991Date of Patent: July 6, 1993Assignee: Monssanto CompanyInventor: Paul A. Mancinelli
-
Patent number: 5219898Abstract: Anisotropic solutions are prepared from poly[2,2'-bis(trifluoromethyl)benzidine terephthalamide] or poly[2,2'-bis(1,1,2,2-tetrafluoroethoxy)benzidine terephthalamide] in amide solvents containing certain chlorides in specified amount. Crystalline fibers are prepared from the polymers.Type: GrantFiled: April 15, 1992Date of Patent: June 15, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Robert S. Irwin
-
Patent number: 5219904Abstract: A cross-linkable, fluorine-containing elastomer composition comprising a fluorine-containing elastomer containing at least one of iodine and bromine in the molecule, an organic peroxide having a peroxy group --O--O--C(CH.sub.3).sub.2 R, where R is a lower alkyl group, in the molecule and an activation energy of not more than 34.0 Kcal/mole and another organic peroxide having the same peroxy group as defined above in the molecule and an activation energy of less than 34.0 Kcal/mole as cross-linking agents for the elastomer has less generation of CH.sub.3 I or CH.sub.3 Br at the decomposition of the organic peroxides without any substantial decrease in the compression set of the vulcanization products.Type: GrantFiled: May 19, 1992Date of Patent: June 15, 1993Assignee: Nippon Mektron LimitedInventor: Masatoshi Abe
-
Patent number: 5218023Abstract: A rubber composition comprising a rubbery polymer, carbon black and a processing aid is described wherein the processing aid is a liquid diene polymer having a weight average molecular weight of about 5,000 to 140,000 and having an atomic group having a bond represented by the formula:>C.dbd.N.sup..crclbar. <,which is bonded to the terminal of the polymer chain, and the amount of the liquid diene polymer is 1 to 100 parts by weight per 100 parts by weight of the rubbery polymer. The liquid diene polymer is usually prepared by reacting an anionic living liquid diene polymer with a compound having in the molecule a bond represented by the formula: ##STR1## in which M represents an oxygen or sulfur atom.Type: GrantFiled: March 29, 1991Date of Patent: June 8, 1993Assignee: Nippon Zeon Co., Ltd.Inventors: Hiroyoshi Horikawa, Shuichi Akita, Hiroyuki Watanabe
-
Patent number: 5130357Abstract: The present flame retardant compositions of polypropylene resin contains polypropylene as a principal constituent and the following constituents making a total of 100 wt %: (A) silane coupling agent and/or (D) olefinic synthetic rubber, (B) ammonium polyphosphate or melamine-modified ammonium polyphosphate, and (C) one or more nitrogen organic compounds which are producible nonflammable gas products and carbonaceous residues by the pyrolysis of the mixture.Further, the other compositions of polypropylene resin contains (E) polyethylene resin along with the above constituents making a total of 100 wt %.Moreover, the other compositions contains (E) polyethylene resin, and (F) crosslinking agent and (G) thiophosphite along with above constituents making a total of 100 wt. %.Type: GrantFiled: April 3, 1990Date of Patent: July 14, 1992Assignee: Chisso CorporationInventors: Shinichi Akitaya, Tooru Fukazawa, Nobuchika Tabata
-
Patent number: 5071896Abstract: This invention relates to polyamide moulding compounds with improved processibility; to a process for their preparation, to their use for the production of moulded parts, sheet products, fibres and composite materials and to the moulded parts, sheet products, fibres, semi-finished products, composite materials and other articles produced from these moulding compounds. The invention is characterized by the use of small quantities of special amides and/or ureas which impart significantly improved flowability to the moulding compounds.Type: GrantFiled: December 24, 1990Date of Patent: December 10, 1991Assignee: Bayer AktiengesellschaftInventors: Hans-Detlef Heinz, Joachim Doring, Walter Schmitt, Harald Pielartzik
-
Patent number: 5055510Abstract: Extended polymer compositions are provided which comprise polymers containing pendant functional groups of the formula: ##STR1## extended, i.e. admixed with a chalcogenide having the empirical formula ##STR2## wherein R.sub.1 is a divalent organic radical at least 3 atoms in length, X is organoacyl or cyano, A is a chalcogen, each of R.sub.9 and R.sub.10 is independently selected from hydrogen, NR.sub.11 R.sub.12, NR.sub.13 and monovalent organic radicals, at least one of R.sub.9 and R.sub.10 being NR.sub.11 R.sub.12 or NR.sub.13, each of R.sub.11 and R.sub.12 is independently selected from hydrogen and monovalent organic radicals, and R.sub.13 is a divalent organic radical. These compositions can be extended with significant proportions of the described chalcogenides with corresponding reductions in polymer concentration without significant loss of physical properties. The resulting combinations are particularly useful as binders and coatings.Type: GrantFiled: August 31, 1988Date of Patent: October 8, 1991Assignee: Union Oil Company of CaliforniaInventor: Charles L. Kissel
-
Patent number: 5045583Abstract: O-Alkenyl substituted hydroxylamines of formula I ##STR1## where R.sub.1 and R.sub.2 are independently hydrogen, alkyl, alkenyl, aryl or phenylalkyl, and R.sub.3 to R.sub.7 are independently hydrogen, alkyl or substituted alkyl are very effective process stabilizers for polymeric systems providing melt flow stabilization and resistance to discoloration during processing at elevated temperatures as well as effective stabilizers for lubricant compositions.Type: GrantFiled: April 24, 1990Date of Patent: September 3, 1991Assignee: Ciba-Geigy CorporationInventors: Paul A. Odorisio, Joseph E Babiarz, Roger Meuwly, Werner Rutsch
-
Patent number: 5041334Abstract: A pigment-attached phosphor in which pigment particles are attached to the surfaces of phosphor particles by a binder, the binder being 0.01 to 1.0 parts by weight and preferably 0.05 to 0.80 parts by weight of gelatin and 0.01 to 0.5 parts by weight and preferably 0.02 to 0.40 parts by weight of urea resin, all against 100 parts by weight of phosphor, the weight ratio of the gelatin and urea resin being within a range of 1:1 to 10:1 and preferably 1:1 to 8:1. The gelatin and urea resin ensure a strong and better attachment of the pigment particles to the surfaces of the phosphor particles.Type: GrantFiled: December 19, 1989Date of Patent: August 20, 1991Assignee: Nichia Kagaku Kogyo K.K.Inventors: Shoji Nakajima, Masahiro Yoneda
-
Patent number: 5039759Abstract: Water borne high solids coating compositions are made by blending a water-dispersible, crosslinkable organic polymer free of amide groups, water, at least one reactive urea derivative, a crosslinking agent and optionally a crosslinking catalyst. Optionally a mixture of reactive urea and carbamate derivatives can be used.The resultant water borne high solids coating compositions can be either solutions or dispersions depending upon the particular polymer and reactive urea or carbamate chosen as the reactive cosolvent or reactive diluent.Type: GrantFiled: August 1, 1985Date of Patent: August 13, 1991Assignee: Technology Corporation United Carbide Chemicals and PlasticsInventors: Kenneth L. Hoy, Forrest A. Richey, Jr.
-
Patent number: 5008318Abstract: Novel composite resinous film comprising a continuous phase of at least one resin and a discontinuous phase of microdomains which are aggregates of particles of at least one insoluble resin and are 0.03 to 10 microns in size, is provided. The film can exhibit the most desirous properties of the respective, constituent resinous materials and are useful in various fields including the paint industry.Type: GrantFiled: February 17, 1989Date of Patent: April 16, 1991Assignee: Nippon Paint Co., Ltd.Inventors: Keizou Ishii, Teruaki Kuwajima, Hiroshi Miwa, Akio Kashihara, Shinichi Ishikura
-
Patent number: 4983652Abstract: This invention relates to hot melt adhesive compositions which includes a polymer complex of an amine containing polymer and a co- or terpolymer, about 3 to about 100 parts by weight of a polymer complex per 100 parts by weight of the highly unsaturated hydrocarbon rubber, wherein the neutralized sulfonated elastomeric polymer has about 0.2 to about 5 weight percent of chemically combined sulfur and about 25 to about 200 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, aliphatic dienes and mono and diolefins, cyclic olefins of 5 to 6 carbon atoms and hydrogenated poly cyclics per 100 parts by weight of the polymer complex.Type: GrantFiled: December 21, 1988Date of Patent: January 8, 1991Assignee: Exxon Research & Engineering CompanyInventor: Pawan K. Agarwal
-
Patent number: 4972013Abstract: A ready-mixed (wet) joint compound comprising a filler, binder, thickener, non-leveling agent and sufficient water to afford a viscosity that renders the joint compound usable, the binder consisting essentially of a polyvinyl alcohol-stabilized vinyl acetate/ethylene polymer emulsion, 0.1 to 10 wt % polyethoxylated tallow amine and 0.1 to 10 wt % urea, the wt % being based on emulsion solids.Type: GrantFiled: February 28, 1989Date of Patent: November 20, 1990Assignee: Air Products and Chemicals, Inc.Inventors: Bernard M. Koltisko, Jr., Tommy W. Hawkins
-
Patent number: 4956409Abstract: A glass wool binder is made to include a surfactant decomposable upon heating so as to produce a hydrophobic surface on the wool after curing of the binder.Type: GrantFiled: July 26, 1988Date of Patent: September 11, 1990Assignee: Owens-Corning Fiberglas CorporationInventor: Ronald F. Sieloff
-
Patent number: 4950700Abstract: The present invention relates to solutions of polyamide-imides which can be spun and shaped, and to a process for their preparation.They contain 5 to 30% of a polyamide-imide in a solvent mixture comprising 40-80% by weight of butyrolactone and 20-60% of an aprotic amide solvent. They are obtained by the reaction, in butyrolactone as polycondensation solvent, of a diisocyanate, an aromatic acid anhydride, optionally an alkali or alkaline-earth metal dicarboxybenzenesulfonate, and optionally another aromatic diacid, the concentration of polyamide-imide being from 15 to 36%, followed by dilution in an amide solvent, at a temperature between 120.degree. and 165.degree. C.The solutions obtained are clear at room temperature, are storable, and possess improved color.Type: GrantFiled: February 9, 1989Date of Patent: August 21, 1990Assignee: Rhone-Poulenc FibresInventors: Maurice Balme, Pascal Barthelemy
-
Patent number: 4939187Abstract: A pattern material for making foundry patterns for use in investment casting process, comprising urea, polyvinyl alcohol and a substance, said substance being capable of forming an eutectic mixture with polyvinyl alcohol to reduce the melting temperature of urea.Type: GrantFiled: November 22, 1988Date of Patent: July 3, 1990Inventor: Tadao Fujita
-
Patent number: 4857569Abstract: A novel thermoplastic composition is prepared by intimately mixing a polyurethane component with a selected reinforcing amount of a rod-like aromatic polyamide component. The composition exhibits unexpected tensile and modulus properties.Type: GrantFiled: July 27, 1987Date of Patent: August 15, 1989Assignee: SRI InternationalInventors: David B. Cotts, Louisa Brodrecht
-
Patent number: 4806419Abstract: (1) Curable bisimide resins comprise a mixture of(a) 5 to 95% of at least one bisimide of the general formula I ##STR1## in which B represents a divalent radical containing a carbon-carbon double bond and A is a divalent radical containing at least two carbon atoms and(b) 95 to 5% of a polyhydantoin polymer of formula II ##STR2## wherein R.sub.1 represents an aromatic hydrocarbon radical, R.sub.2 represents hydrogen or an alkyl group having 1 to 6 carbon atoms, R.sub.3 represents an aromatic hydrocarbon radical, an alkyl radical having 4 to 10 carbon atoms optionally interrupted by one or more oxygen or sulphur atoms, and X is an integer of from 20 to 5000.Type: GrantFiled: March 6, 1987Date of Patent: February 21, 1989Assignee: The Boots Company plcInventor: Horst Stenzenberger
-
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
-
Patent number: 4789695Abstract: A Mannich base of a high molecular weight acrylamide polymer can be made by reacting, in aqueous solution, the polymer with a Mannich base of a low molecular weight compound such as urea. A composition of the polymer and the Mannich base is preferably substantially non-aqueous.Type: GrantFiled: July 24, 1986Date of Patent: December 6, 1988Assignee: Allied Colloids Ltd.Inventors: David Farrar, Peter Flesher
-
Patent number: 4757104Abstract: Carbonate polymer compositions are rendered gamma ray resistant by the incorporation of 100 to 50,000 ppm of one or more linolenic compounds. Compared to the controls, the compositions of the invention have a reduced yellowing after exposure to cobalt 60 radiation.Type: GrantFiled: February 6, 1987Date of Patent: July 12, 1988Assignee: The Dow Chemical CompanyInventor: Vaughn M. Nace
-
Patent number: 4687801Abstract: A resin composition which consists essentially of a thermoplastic resin, in which are included an alkali metal salt, and at least one kind of substances selected from the group consisting of vinylidene fluoride resin and dipolar aprotic solvents.Type: GrantFiled: September 17, 1985Date of Patent: August 18, 1987Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tetsuo Mitani, Fumiaki Baba, Katsuyoshi Iisaka
-
Patent number: 4675351Abstract: An adhesive formulation useful for applying a paper label to a glass bottle, having the tack and rheology making it suitable for use in modern labeling equipment, and imparting water immersion resistance in ice water for a period of at least 72 hours. Based on soy protein isolate; does not use casein.Type: GrantFiled: January 16, 1986Date of Patent: June 23, 1987Assignee: Borden, Inc.Inventor: Orville E. Brown
-
Patent number: 4670184Abstract: The invention relates to a suspension of ammonium carbonate and/or ammonium hydrogen carbonate in an aqueous solution saturated with respect to said salts and optionally also containing urea. For the purpose of stabilizing the suspension there is incorporated therein a polyacrylic acid having an average molecular weight (M.sub.w) in the range of 4.times.10.sup.5 -1.times.10.sup.6, preferably about 7.5.times.10.sup.5. The invention also relates to the use of the suspension for treating carbamide-resin bound, wood-based board material, such as plywood, chipboard and wood fibreboard, for reducing the emission of formaldehyde therefrom.Type: GrantFiled: March 26, 1985Date of Patent: June 2, 1987Assignee: Swedspan ABInventors: Anders Bjorlin, Thomas Edberg, Eva Sjoblom, Anders Westling
-
Patent number: 4652598Abstract: Polyamic acids prepared from the condensation of dianhydrides (or trianhydrides) and diamines and preferably dissolved in a suitable solvent produce polyimide shaped articles (e.g. films) relatively free of voids, pinholes, cracks and bubbles when about 0.75 to about 5 mole percent of a polysiloxane is incorporated in the backbone of the polyamic acid.Type: GrantFiled: October 24, 1985Date of Patent: March 24, 1987Assignee: M&T Chemicals Inc.Inventor: Robert Edelman
-
Patent number: 4623683Abstract: An aqueous fabric finishing composition includes a solubilized polymer of from 40 to 51 mole percent of a mixture of higher one-alkenes and from 60 to 49 mole percent maleic anhydride.Type: GrantFiled: October 12, 1984Date of Patent: November 18, 1986Assignee: S.C. Johnson & Son, Inc.Inventors: John G. Villarreal, Calvin J. Verbrugge, Fred J. Reichley
-
Patent number: 4598119Abstract: The stability of a water-soluble acrylate polymer such as sodium polyacrylate in the disperse aqueous phase of a water-in-oil emulsion is improved by the addition to the emulsion of a water-soluble thiosulfate, thiourea, nitrite or thiocyanate, e.g., sodium thiosulfate, in an amount sufficient to improve the viscosity retention of the polymer in an aqueous solution. The resulting emulsion containing the stabilized polymer can be stored for extended periods and then be usefully employed as a flocculant, paper additive and in other conventional applications for said emulsions.Type: GrantFiled: February 15, 1983Date of Patent: July 1, 1986Assignee: The Dow Chemical CompanyInventor: Henry Volk
-
Patent number: 4596846Abstract: A printing ink for capillary or jet printers adapted to form a mechanically erasable image, comprises a latex-based aqueous polymer dispersion including a water-soluble or organic-solvent soluble dyestuff coloring the particles of the dispersion without the use of additional solvent.Type: GrantFiled: August 16, 1983Date of Patent: June 24, 1986Assignee: Pelikan AktiengesellschaftInventors: Karl-Heinz Bohne, Hans-Jurgen Rahn