With Polycarboxylic Acid Or Derivative And A Polyamine, Or With Nitrogen Containing Carboxylic Acid Or Derivative Reactant At Least One Of Which Is Saturated Or With Solid Polymer Thereof Patents (Class 524/514)
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Patent number: 5350796Abstract: A composition for improving the wet strength of cellulosic fibrous webs is comprised of an aminopolyamide-epichlorohydrin acid salt resin having an E/N ratio of from about 0.6 to about 2.0 and from about 1% to about 35% of a water soluble cationic polymer based on the weight of the resin. The composition has a total organic chlorine content of from about 0.5% to 1.0% by weight based on the weight of the aminopolyamide-epichlorohydrin acid salt resin.Type: GrantFiled: October 25, 1993Date of Patent: September 27, 1994Assignee: Henkel CorporationInventors: David I. Devore, Nancy Clungeon, Stephen A. Fischer
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Patent number: 5348991Abstract: An aqueous dispersion coating composition comprising at least one kind of resin, wherein any one of said resin or resins has at least one functional group selected from an active hydrogen-containing group, a substituted acylamide group and a water dispersible or water-soluble group, and wherein the resin composition as a whole contains each of the above described kinds of functional groups.Type: GrantFiled: June 5, 1992Date of Patent: September 20, 1994Assignee: Nippon Paint Co., Ltd.Inventors: Motoyoshi Yoshikawa, Hideyoshi Noda, Shinsuke Shirakawa, Noriyuki Tsuboniwa, Eiji Yamanaka, Satoshi Urano, Kazunori Kanda
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Patent number: 5344872Abstract: This invention relates to an aqueous dispersion of a water-dissipatable polyester and a styrenated acrylic copolymer in combination with either an acrylic polymer or a hydantoin-formaldehyde resin.Type: GrantFiled: February 19, 1993Date of Patent: September 6, 1994Assignee: Eastman Chemical CompanyInventors: Theo J. Debord, Nelson Z. Escano, Louis A. Wilkin
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Patent number: 5338796Abstract: A thermoplastic composition having a good balance of mechanical and thermal properties, an improved impact strength and a good processability includes a functionalized polyphenylene ether, a polyamide, and an olefinic elastomer containing a vinylaromatic monomer grafted thereon.Type: GrantFiled: February 9, 1993Date of Patent: August 16, 1994Assignee: Montedipe s.r.l.Inventors: Domenico Vianello, Armando Benetton, Alessandro Moro, Roberto Pippa, Aldo Longo
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Patent number: 5334629Abstract: A transparent polyelectrolyte fiber or gel, such as cross-linked polyacrylic acid, which contracts and expands upon the addition of an acid or base to an aqueous medium solution, is placed in the same solution with a pH dependent dye, a colored photochromatic indicator dye. The dye preferably has a pA.sub.a value that is the same as the pH at a null contraction point of the fiber. By irradiating the solution with light of a wavelength of the absorption band of either the acid or base form of the dye, the solution pH is made to change, and the fiber is made to expand or contract, depending upon the wavelength. Thus, light energy is readily converted to work energy and may be used to power a pump, for example, or an artificial muscle can be powered via an optical fiber.Type: GrantFiled: August 27, 1992Date of Patent: August 2, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventor: Albert Zirino
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Patent number: 5319017Abstract: A water-based paint composition suitable for re-use with the retention of the intended coating property when recovered from a flushing water utilized to collect the paint composition remain undeposited on an article in a painting process. The water-based paint composition comprises a water-soluble resin selected from the group consisting of alkyd resin and acrylic resin to have an acid value of 25 to 100, a hydroxyl value of 35 to 200, and a solubility parameter (SP) of 10.0 to 11.0. The paint composition also incorporate a curing agent having a solubility parameter (SP) which is higher than that of the water-soluble resin by 0.5 to 3.0.Type: GrantFiled: February 5, 1993Date of Patent: June 7, 1994Assignee: Nippon Paint Co., Ltd.Inventors: Kazuo Uenoyama, Takayuki Shibata, Tetsuro Kajino, Masahiro Nagasaki, Nobuhiro Sudo
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Patent number: 5304422Abstract: A polyamide resin composition comprising: (a) 100 parts by weight of a polyamide; (b) from about 1 part to about 80 parts by weight of an aromatic polyamide fiber; (c) from about 3 parts to about 80 parts by weight of a polytetrafluoroethylene; and (d) from about 1 part to about 20 parts by weight of high-density polyethylene is disclosed. The polyamide resin composition can be molded into sliding members, like bearings, bushings and slide rails, that demonstrate excellent mechanical and physical properties, like low frictional force, low self-abrasion, and low abrasion to metals.Type: GrantFiled: September 19, 1990Date of Patent: April 19, 1994Assignee: Bando Chemical Industries, Ltd.Inventors: Takayoshi Tanabe, Takatoshi Ishigaki, Shuji Tsuchikawa, Shinichi Kimura
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Patent number: 5276080Abstract: In the static dissipative resin composition of the present invention, fundamentally, at least semiconductor fillers are dispersed in a resin and at least a part of the semiconductor fillers are brought into electrical contact with each other, thereby forming a conductive path. The .alpha. value representing the degree of the nonlinearity of the V-i characteristics at the contact between the semiconductor fillers should be 2-150, and the volume resistivity of the semiconductor filler is desirably 10.sup.5 -10.sup.10 .OMEGA..cm, whereby on the employment of a conductive filler or a solid lubricant together with the semiconductor filler, various physical properties of the resin composition are improved.Type: GrantFiled: March 5, 1992Date of Patent: January 4, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Mitsumasa Oku
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Patent number: 5274025Abstract: This invention relates to a polymer blend comprising water-dissipatable, sulfonate containing, a hydantoin-formaldehyde resin.Type: GrantFiled: February 19, 1993Date of Patent: December 28, 1993Assignee: Eastman Kodak CompanyInventors: Rebecca R. Stockl, Hieu D. Phan, Gary T. Clark
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Patent number: 5270378Abstract: A novel fluorochemical polymer surfactant reduces disuniformities in polymeric coatings. The coating composition comprising an organic solvent, an organic polymer compatible with said solvent, and a coating aid comprising a fluorinated polymer different from said polymer compatible with said solvent, said fluorinated polymer having at least three different moieties within the polymer chain derived from reactive monomers, the monomers comprising a fluorochemical acrylate, a short-chain-alkyl acrylate, and a polar monomer.Type: GrantFiled: October 26, 1992Date of Patent: December 14, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: David K. Johnson, Patricia M. Savu
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Patent number: 5262496Abstract: A process for making polymers of conjugated dienes which contain hydroxyl groups, including highly reactive primary hydroxyl groups, in the diene blocks which comprises(a) making a precursor polymer by polymerizing at least one conjugated diene which leaves 1,2 disubstituted, 1,1 disubstituted, 1,1,2 trisubstituted or tetrasubstituted olefinic unsaturation in the polymer,(b) optionally partially hydrogenating said precursor polymer,(c) epoxidizing said precursor polymer such that epoxy groups form at said substituted sites and the amount of epoxy functionality in the polymer is from at least 0.1 Meq/g polymer, and(d) reacting the epoxidized polymer with an alcohol having one unprotected hydroxyl group in a solvent in the presence of a Lewis acid selected from the group consisting of MX.sub.n where M is selected from the group consisting of boron, aluminum, iron and tin, and X is a halogen, and organic complexes of such acids.A diene polymer containing 0.Type: GrantFiled: April 16, 1993Date of Patent: November 16, 1993Assignee: Shell Oil CompanyInventors: Robert C. Bening, James R. Erickson, Charles J. Stark, David J. St. Clair
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Patent number: 5258441Abstract: A polyimide-based friction material which is excellent in heat resistance, abrasion resistance, stability of friction coefficient, can be readily obtained by molding, and is comprised of:(a) from 30 to 96 parts by weight of a thermoplastic polyimide resin essentially consisting of recurring units of the formula: ##STR1## (b) from 2 to 30 parts by weight of fluoro resin, and (c) from 2 to 40 parts by weight of calcium carbonate wherein the sum of components (a), (b) and (c) is 100 parts by weight.Type: GrantFiled: May 21, 1992Date of Patent: November 2, 1993Assignees: Mitsui Toatsu Chemicals, Inc., NTN-Rulon Corp.Inventors: Taizo Nagahiro, Noboru Umemoto
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Patent number: 5252661Abstract: Thermoplastic molding compositions contain as essential componentsA) 40-95% by weight of a partly aromatic copolyamide composed essentially ofA.sub.1) 20-90% by weight of units derived from terephthalic acid and hexamethylenediamine,A.sub.2) 0-50% by weight of units derived from .epsilon.-caprolactam andA.sub.3) 0-80% by weight of units derived from adipic acid and hexamethylenediamine,B) 5-60% by weight of an impact modifying rubber, and in additionC) 0-50% by weight of fibrous or particulate fillers or mixtures thereof.Type: GrantFiled: April 6, 1992Date of Patent: October 12, 1993Assignee: BASF AktiengesellschaftInventors: Horst Reimann, Gunter Pipper, Hans-Peter Weiss, Christoph Plachetta, Eckhard M. Koch, Gerd Blinne, Walter Goetz, Peter Steiert
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Patent number: 5244961Abstract: A non-vulcanized thermoplastic composition comprising a polyamide and an elastomeric halogen-containing copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene is prepared by blending the polyamide and elastomeric copolymer in the presence of specified metal compounds in an amount insufficient for vulcanizing the composition. Optionally, the resulting composition may be subjected to vulcanization.Type: GrantFiled: September 19, 1991Date of Patent: September 14, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Thomas C. Yu, Hsien C. Wang, Kenneth W. Powers
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Patent number: 5234979Abstract: The present invention relates to thermoplastic moulding compositions consisting of halogen-free polycarbonates, halogen-free polystyrene and/or halogen-free copolymers of styrene with acrylonitrile, halogen-free phosphorus compounds of the formula I ##STR1## and tetrafluoroethylene polymers, and, if appropriate, other known additives.Type: GrantFiled: January 25, 1988Date of Patent: August 10, 1993Inventors: Gert Todtemann, Klaus Reinking
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Patent number: 5219914Abstract: A washout resistant roof mastic is disclosed in which an emulsion is applied and contacted with a second material that causes the emulsion to flocculate and set quickly. The emulsion can be applied for example through an applicator that simultaneously applies the emulsion and the flocculant.Type: GrantFiled: December 27, 1989Date of Patent: June 15, 1993Assignee: Rohm and Haas CompanyInventor: Charles E. Warburton, Jr.
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Patent number: 5218030Abstract: A novel curable polyphenylene ether resin composition is disclosed, which comprises (a) a curable polyphenylene ether resin having at least one group selected from the group consisting of an allyl group and a propargyl group and (b) at least one cyanurate. The resin composition has excellent storage stability, film-forming properties and melt moldability. If desired, a fire retardant, optionally together with an antimony-containing auxiliary fire retardant, and/or a reinforcement is incorporated into the resin composition in order to improve the fire retardance and mechanical properties of the resin composition, respectively. By curing the resin composition, a cured polyphenylene ether resin composition comprising a chloroform nonextractable polyphenylene ether resin component and a chloroform extractable, polyphenylene ether-containing component is obtained, which has excellent chemical resistance, electrical properties, dimensional stability and heat resistance.Type: GrantFiled: February 7, 1990Date of Patent: June 8, 1993Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Teruo Katayose, Hiroji Oda, Haruhisa Sasaki
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Patent number: 5216079Abstract: Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing about 1 to 30 weight percent of the novel lubricant or lubricant blend have greatly improved friction and wear properties, including lower coefficients of friction and increased surface wear resistence. The polyolefin does not remain as discrete, identifiable particles after mixing with the polymer matrix, and has an average molecular weight of less than 500,000.Type: GrantFiled: February 23, 1990Date of Patent: June 1, 1993Assignee: Kawasaki LNP Inc.Inventors: Jane M. Crosby, John E. Theberge
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Patent number: 5212224Abstract: Polyamide moulding materials which have been impact-modified with diene and/or acrylic rubbers and can be processed by thermoplastic means and contain special diphenols.Type: GrantFiled: February 27, 1990Date of Patent: May 18, 1993Assignee: Bayer AktiengesellschaftInventors: Rolf-Volker Meyer, Friedrich Fahnler, Rolf Dhein, Martin Wandel
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Patent number: 5200449Abstract: A polyimide resin composition with outstanding heat resistance and mechanical properties is disclosed, along with a novel method of its preparation. A tetracarboxylic acid or its derivative and an aromatic diamine are dissolved in a solvent system of mixed phenols and are both polymerized and imidized on one step.Type: GrantFiled: May 8, 1991Date of Patent: April 6, 1993Assignee: W. R. Grace & Co.-Conn.Inventor: Hiroshi Itatani
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Patent number: 5196475Abstract: The ionomer salt of low molecular weight copolymer reaction product of a copolymer acid of an .alpha.-olefin and an unsaturated carboxylic acid, and at least one amino acid compound, and a cation containing material. The unsaturated carboxylic acid is preferably an .alpha.,.beta.-ethylenically unsaturated carboxylic acid. The present invention includes a method of preparing the ionomer. The ionomer has excellent compatibility with other polymers, particularly polyamides. The ionomer is useful in a method to flush water from pigments.Type: GrantFiled: March 30, 1992Date of Patent: March 23, 1993Assignee: Allied-Signal Inc.Inventors: Charles F. Lences, Manfred K. Seven
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Patent number: 5182326Abstract: The invention is pigment grinding aids for water-based inks which are produced by reacting an unsaturated fatty acid and/or resin acid with either acrylic acid, metacrylic acid, fumaric acid, or maleic anhydride to form a polycarboxylic acid anhydride. The polycarboxylic acid anhydride is reacted with an excess of polyamine to produce an amidoamide or imidoamide intermediate. This intermediate is reacted with either acrylic acid or methacrylic acid to produce the grinding aid.Type: GrantFiled: April 8, 1991Date of Patent: January 26, 1993Assignee: Westvaco CorporationInventors: Paul J. LeBlanc, Peter Schilling
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Patent number: 5179153Abstract: Polyimide compositions containing both graphite and fluoropolymer exhibit superior wear performance against aluminum.Type: GrantFiled: September 9, 1991Date of Patent: January 12, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventor: Daniel E. George
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Patent number: 5168013Abstract: Improved non-stick coating systems can be applied to untreated smooth substrate with a primer of a first polytetrafluoroethylene having a melt viscosity over 10.sup.10 poises plus a second polytetrafluoroethylene having a melt viscosity in the range of 10.sup.3 to 10.sup.8 poises to give a concentration gradient.Type: GrantFiled: December 12, 1990Date of Patent: December 1, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Harvey P. Tannenbaum
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Patent number: 5168107Abstract: Improved non-stick coating systems can be applied to untreated smooth substrate with a primer of polytetrafluoroethylene of two types, having higher and lower melt viscosities, to give a concentration gradient.Type: GrantFiled: December 12, 1990Date of Patent: December 1, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Harvey P. Tannenbaum
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Patent number: 5166237Abstract: A novel thermoplastic composition having improved paint adhesion strength comprising,A) from about 5 to 95 weight % of a6t least one polyphenylene ether.B) from about 95 to 5 weight % of at least one polyamide,C) paint adhesion improving amount of at least one paint adhesion improver selected from the class consisting of(1) homopolymers or copolymers of unsaturated nitrile compounds and(2) homopolymers or copolymers of alkyl (meth)acrylate, excluding an ethylene alkylacrylate copolymer having about 50 weight % or higher of ethylene,D) from about 0.01 to 30 parts by weight of at least one compatibilizer, based on 100 by weight of the total of the polyphenylene either and polyamide.Type: GrantFiled: February 20, 1990Date of Patent: November 24, 1992Assignee: Sumitomo Chemical Company, Ltd.Inventors: Hiroomi Abe, Taichi Nishio, Takashi Sanada, Noriyasu Kagawa
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Patent number: 5164440Abstract: Disclosed is a polyamide resin composition comprising: (A) at least one of the group consisting of a polyamide resin and a resin composition containing a polyamide resin; (B) a layered silicate uniformly dispersed in the above component (A); and at least one selected from the group consisting of (C) an impact resistance improving material and (D) a polyphenylene ether type resin. The resin composition of this invention has excellent moldability, and the molded product of the resin composition has excellent heat resistance, rigidity and impact resistance.Type: GrantFiled: July 13, 1989Date of Patent: November 17, 1992Assignees: Ube Industries, Ltd., Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Ryuichi Deguchi, Takeyoshi Nishio, Akane Okada
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Patent number: 5162399Abstract: Disclosed is a process for preparing ink millbase by use of a polymer blend of compatible polyesters and acrylic polymers. The polyesters are water-dispersible as a result of sulfonate groups on the polyester backbone. Use of the polymer blend results in an improvement in pigment particle size reduction during grinding.Type: GrantFiled: January 9, 1991Date of Patent: November 10, 1992Assignee: Eastman Kodak CompanyInventors: Mahendra K. Sharma, Hieu D. Phan
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Patent number: 5155157Abstract: The invention provides compositions useful in the manufacture of one-, two- and three-piece golfballs comprising blends of a copolyetherester or copolyetheramide, an expoxy-containing compound, and an acid-containing ethylene copolymer ionomer.Type: GrantFiled: March 26, 1991Date of Patent: October 13, 1992Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert J. Statz, Jon P. Braemer, John F. Hagman
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Patent number: 5155146Abstract: An ambient temperature, dry blend for forming a thermoplastic composite is disclosed including a quantity of expanded thermoplastic pieces and a quantity of filler particles suspended by the pieces, with the quantity being up to 60% by weight of the blend. Also disclosed is a method of making a thermoplastic composite including dry mixing at ambient temperature a quantity of filler particles with a quantity of expanded thermoplastic pieces to form a blend. The method also includes forming the blend into a thermoplastic composite. Also disclosed is a thermoplastic composite formed by compressing heated compressing and dispensing an ambient temperature blend of thermoplastic pieces and filler particles. Finally, apparatus is disclosed for making a reinforced thermoplastic composite from a dry blend of expanded thermoplastic pieces and filler particles.Type: GrantFiled: March 29, 1991Date of Patent: October 13, 1992Inventor: William R. Reetz
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Patent number: 5141984Abstract: There is here provided a thermoplastic resin composition which comprises (I) 99 to 1% by weight of a polyamide resin, (II) 1 to 99% by weight of at least one kind of resin selected from the group consisting of a polyphenylene ether resin, a mixture of the polyphenylene ether resin and a styrene polymer, and a polycarbonate resin, (III) 0.1 to 100 parts by weight, based on 100 parts by weight of the aforesaid resins (I)+(II), of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of an epoxy group-containing olefin copolymer and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one kind of vinyl monomer, either of both the components being formed with a dispersion phase having a particle diameter of 0.001 to 10 .mu.m. A method for preparing the above-mentioned thermoplastic resin composition is also provided here.Type: GrantFiled: August 17, 1988Date of Patent: August 25, 1992Assignee: Nippon Petrochemicals Co., Ltd.Inventors: Yuichi Orikasa, Suehiro Sakazume
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Patent number: 5140059Abstract: Compatibilized compositions comprising at least one polyamide and at least propylene polymer which is at least partially modified by a polar monomer, in which compositions the propylene polymer has a melt flow index (MFI) measured according to ASTM standard D 1238-86 (230/2.16 conditions) higher than 50 g/10 min.Type: GrantFiled: December 28, 1989Date of Patent: August 18, 1992Assignee: Solvay & CieInventor: Anthony Simoens
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Patent number: 5137942Abstract: The method of compounding a high strength, cost-effective, composite of a high temperature, water sensitive, polar, polyamide-inide resin mixed with a talc, water absorbent/adsorbent filler. The method comprises raising said mixture to a temperature of about; 500.degree. F. to develop plasticity in said engineering resin. Thereafter there is added a lower temperature softening, water repellant, polypropylene resin and a compatibilizing additive. Finally all components are mixed in a mixing chamber sufficiently to obtain complete dispersion and homogeneity of the composite.Type: GrantFiled: October 31, 1990Date of Patent: August 11, 1992Assignee: Ralph B. AndyInventor: Norman Shorr
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Patent number: 5135983Abstract: This invention relates to compositions which contain polyphenylene ether resin and polyamide resin, wherein a portion of the polyphenylene ether is modified by terminal oxazolinization.Type: GrantFiled: December 13, 1989Date of Patent: August 4, 1992Assignee: GE Plastics Japan, Ltd.Inventor: Masataka Morioka
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Patent number: 5130372Abstract: The ionomer salt of low molecular weight copolymer reaction product of a copolymer acid of an .alpha.-olefin and an unsaturated carboxylic acid, and at least one amino acid compound, and a cation containing material. The unsaturated carboxylic acid is preferably an .alpha., .beta.-ethylenically unsaturated carboxylic acid. The present invention includes a method of preparing the ionomer. The ionomer has excellent compatibility with other polymers, particularly polyamides. The ionomer is useful in a method to flush water from pigments.Type: GrantFiled: December 18, 1989Date of Patent: July 14, 1992Assignee: Allied-Signal Inc.Inventors: Charles F. Lences, Manfred K. Seven
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Patent number: 5122557Abstract: The present invention relates to light polarizing films containing water-soluble, transparent organic polymers and dichroic dyes capable of fluorescence and to new dichroic dyes.Type: GrantFiled: June 3, 1991Date of Patent: June 16, 1992Assignee: Bayer AktiengesellschaftInventors: Uwe Claussen, Friedrich W. Krock
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Patent number: 5115015Abstract: AmBifunctional reactive diluent are provided for use in the preparation of high solids coatings. The diluents are of a structural configuration that they do not disturb a coating composition's stoichiometric ratio of nucleophilic and electrophilic groups. The invention also provides a process for the preparation of high solids coatings which utilizes the diluents.Type: GrantFiled: April 4, 1991Date of Patent: May 19, 1992Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Forrest A. Richey, Jr., Kenneth L. Hoy
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Patent number: 5112908Abstract: Tough, high melt flow, low molecular weight polyamide compositions containing toughening polymers are obtained by blending conventional polyamides with the toughening polymer and then mixing the blend with very low molecular weight polyamides which are capable of reacting with the conventional polyamide by transamidation.Type: GrantFiled: March 5, 1990Date of Patent: May 12, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Bennett N. Epstein
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Patent number: 5109054Abstract: A method is provided for the preparation of stable aqueous dispersions of non-solvated, un-neutralized, low amine, low acide number polymerized fatty acid polyamide resins. In the preferred method of this invention, a polymerized fatty acid polyamide resin which has been prepared so as to have a low acid and low amine number is liquified by heating the polyamide resin to a temperature where it is at or above its melting point. The liquified polymerized fatty acid polyamide resin is then blended with a predetermined amount of water which is heated to a temperature such that the resulting blend will have a temperature above the melting point of the polyamide resin. A surfactant which will promote the emulsification of the polyamide resin and water is included in the mixture.Type: GrantFiled: April 5, 1991Date of Patent: April 28, 1992Assignee: Union Camp CorporationInventor: George A. Smith
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Patent number: 5109053Abstract: Aqueous dispersions of acrylate-modified polyamide resin having unreacted acrylate functionality are provided. These acrylate-modified polyamide dispersions cure upon exposure to either ultraviolet radiation or thermal energy to form cross-linked films useful, for example, as adhesive coatings. In a preferred embodiment, acrylate-modified dispersions are formed by the addition of a polyol ester having a multiplicity of acrylate ester groups to a polyamide resin having a multiplicity of free amino groups under conditions effective to form the Michael addition product thereof.Type: GrantFiled: June 21, 1990Date of Patent: April 28, 1992Assignee: Union Camp CorporationInventors: George A. Smith, Daniel T. Rumack, Charles R. Frihart
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Patent number: 5104924Abstract: The invention relates to a process for the preparation of reinforced, impact-modified thermoplastic molding compositions which contain, based on 100 parts by weight,A) from 30 to 93 parts by weight of one or more thermoplastics from the group comprising the polyamides, polyesters, polycarbonates and polyphenylene ethers,B) from 5 to 50 parts by weight of fibers, preferably glass fibers, andC) from 2 to 20 parts by weight of one or more impact-modifying rubbers,in which processthe fibers (B) are first introduced into the melt of the thermoplastic (A),components (A) and (B) are mixed,the rubber (C) is then introduced into the resultant mixture in the melt, andthe resultant molding composition is extruded and granulated,wherein the reaction is carried out in one step, expediently at a constant temperature in the range of, advantageously, from 250.degree. to 300.degree. C.Type: GrantFiled: July 26, 1990Date of Patent: April 14, 1992Assignee: BASF AktiengesellschaftInventors: Walter Goetz, Gerd Blinne, Herbert Gutsche, Rolf Steinberger
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Patent number: 5096958Abstract: A hydrophilic surface treatment chemicals comprising, on a solid basis,(a) 1-10 parts by weight of at least partially saponified polyvinyl acetate having a saponification degree of 45 or more and a polymerization degree of 100-600,(b) 0.3-15 parts by weight of water-soluble nylon, and(c) 0.1-5 parts by weight of a water-soluble amino resin,a weight ratio of the component (b) to the total of the components (a) and (c), (b)/[(a)+(c)], being in the range of 1-1/4, and a weight ratio of the component (a) to the component (c), (a)/(c), being in the range of 1/0.05-1/0.5. The hydrophilic surface treatment bath is prepared by properly diluting the chemicals for surface-treating aluminum members.Type: GrantFiled: August 10, 1990Date of Patent: March 17, 1992Assignee: Nippon Paint Co., Ltd.Inventors: Shigeyuki Meguro, Kiyotada Yasuhara
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Patent number: 5089553Abstract: The present invention relates to a novel copolymerized composition characterized in that it comprises (A) 100 parts by weight of a copolymerized polyester containing (a) an aromatic dicarboxylic acid unit composed mainly of a terephthalic acid unit, (b) a glycol unit composed mainly of an ethylene glycol unit, (c) a polytetramethylene glycol unit, (d) a polyethylene glycol unit and (e) an aliphatic dicarboxylic acid unit having 9 or more carbon atoms, (B) 5 to 150 parts by weight of a reinforcing substance and (C) 1 to 10 parts by weight of a metal salt of an ionic copolymer.The copolymerized polyester compositions of the present invention retain excellent heat resistance and rigidity that the glass fiber-reinforced polyethylene terephthalate compositions possess originally and are considerably improved in terms of low-temperature moldability, toughness, alkali resistance and like other factors.Type: GrantFiled: August 21, 1989Date of Patent: February 18, 1992Assignees: Idemitsu Petrochemical Co., Ltd., Kuraray Company LimitedInventors: Takashi Umeda, Seiichi Zemba, Kazuo Hara, Katsunori Takamoto, Shinichi Yokota
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Patent number: 5070145Abstract: Compositions comprising from 50 to 95% by weight of at least one polyamide resin, and from 5 to 50% by weight % of a polymer composition comprising from 84 to 99.1 mole % of units derived from ethylene and from 0.9 to 16 mole % of units derived from an unsaturated anhydride of a dicarboxylic acid and optionally from at least one of an alkyl acrylate or methacrylate whose alkyl group has from 1 to 8 carbon atoms. The polymer composition is present in the form of a mixture of (A) a polymer of ethylene and (B) a copolymer of ethylene and an unsaturated anhydride of a dicarboxylic acid. The weight ratio (A) to (B) lies between 1 to 6 and 6 to 1.Application is to the production of articles having an improved impact resistance.Type: GrantFiled: December 5, 1989Date of Patent: December 3, 1991Assignee: Societe Chimique des Charbonnages S.A.Inventor: Lionel Guerdoux
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Patent number: 5063262Abstract: Costabilizers which are copolymers of oxazolines and bisoxazolines enhance the stabilizing properties of primary stabilizers such as polyoxazolines and zinc compounds in chloride-containing thermoplastic molding compositions, preferably based on polymers of vinyl chloride.Type: GrantFiled: September 26, 1990Date of Patent: November 5, 1991Assignee: Huels AktiengesellschaftInventor: Thomas Hildebrand
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Patent number: 5059646Abstract: An improved thermoplastic resin composition is described, containing polyphenylene ether resin, polyamide resin, and certain organophosphorus compounds. Particular examples of the organophosphorus compounds are dimethyloxazolinylmethylbisvinylphenyl phosphate and bis(dimethyloxazolinylmethyl)vinylphenyl phosphate. The compositions are characterized by excellent mechanical properties and oil resistance.Type: GrantFiled: December 13, 1989Date of Patent: October 22, 1991Assignee: General Electric Co.Inventors: Masataka Morioka, Hiromi Ishida
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Patent number: 5049610Abstract: A reinforced rubber composition comprising 100 parts by weight of a vulcanizable rubber including 1 to 100 parts by weight of fine short fibers of a fiber forming polyamide buried therein, and the polyamide and the rubber are bonded through a silane coupling agent. This reinforced rubber composition is suitable for use as automobile tires and the parts thereof and rubber products such as, rubber houses, rubber belts, rubber parts for automobiles, and footwear materials.Type: GrantFiled: November 17, 1989Date of Patent: September 17, 1991Assignee: Ube Industries, Ltd.Inventors: Takeshi Takaki, Kouhei Kaijiri, Denichi Oda, Kunio Oda, Hideo Kurihara, Takeshi Tanabe
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Patent number: 5049602Abstract: Costabilizers which are composed of pyrroles and/or dihydropyridines and/or copolymers of oxazolines and bisoxazolines and/or polyols enhance the stabilizing effect of primary stabilizers such as polyoxazolines and zinc compounds in thermoplastic molding compositions, such as those based on polymers of vinyl chloride.Type: GrantFiled: September 26, 1990Date of Patent: September 17, 1991Assignee: Huels AktiengesellschaftInventor: Thomas Hildebrand
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Patent number: 5039339Abstract: Disclosed is a novel blend of a water-dissipatable polyester material and an acrylic polymer. The acrylic polymer must be compatible with the polyester and can be optionally styrenated. The polyester is exemplified in having an acid component of from about 75 to about 84 mole % isophthalic acid and conversely from about 25 to about 16 mole % 5-soldiosulfoisophthalic acid, and having a glycol component of from about 45 to about 60 mole % diethylene glycol and conversely from about 55 to about 44 mole % 1,4-cyclohexanedimethanol or ethylene glycol or mixtures thereof.The polymer blends are useful for preparing ink compositions having improved block resistance and water resistance.Type: GrantFiled: September 7, 1990Date of Patent: August 13, 1991Assignee: Eastman Kodak CompanyInventors: Hieu D. Phan, Gary W. Carrier, Rebecca R. Stockl, Frank J. Tortorici, R. Gary Wulf
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Patent number: H1021Abstract: Improved mechanical properties, particularly tensile strength, are demonstrated by glass fiber-reinforced blends of a polymeric blend comprising a major proportion of a polyamide polymer with a lesser amount of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and, optionally, an acidic polymer containing moieties of .alpha.-olefin and .alpha.,.beta.-ethylenically unsaturated carboxylic acid.Type: GrantFiled: October 31, 1989Date of Patent: February 4, 1992Assignee: Shell Oil CompanyInventors: Joseph M. Machado, William P. Gergen