Solid Polymer Derived From Carboxylic Acid-containing Monomer Patents (Class 524/522)
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Patent number: 5278217Abstract: A water absorptive composition comprising a thermoplastic elastomer as a first component, a water-absorptive resin as a second component, and a third component selected from the group which consists of: a water-soluble resin; a hydrophilic compound selected from the group consisting of metal salt of carboxylic acid, polyhydric alcohol, amino alcohol, linear polyether, saccharide, and sugar alcohol; and a surface treating agent selected from the group consisting of sorbitan fatty acid ester, glycidyl ether of polyhydric alcohol, and silane coupling agent. The composition is suitably used for producing a water absorptive member for protecting optical fiber elements of an optical fiber cable.Type: GrantFiled: October 7, 1992Date of Patent: January 11, 1994Assignees: Tokai Rubber Industries, Ltd., Summitomo Electric Industries, Ltd., Nippon Telegraph and Telephone Corp.Inventors: Masanari Umeda, Yukio Sakuraba, Fumihiro Ashiya, Toshinobu Matsuo
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Patent number: 5270358Abstract: A composite of a gel of swollen hydrocolloid dispersed in a pressure sensitive adhesive matrix is provided. The gel has a natural or synthetically derived hydrocolloid swollen with a non-volatile swelling agent, such that the gel may have a shear modulus of less than 6.2.times.10.sup.6 dynes/cm.sup.2. The gel-adhesive composite has continued skin adhesion whether applied to or existing in dry or moist skin conditions. The gel contributes a high moisture vapor transmission rate to attempt to maintain dry skin conditions while the adhesive maintains skin adhesion. The gel-adhesive composite may be used in a variety of tape, dressing, bandage, drape, or other skin contacting usage and may optionally include antimicrobial agents to treat the skin while adhesion continues.Type: GrantFiled: June 25, 1992Date of Patent: December 14, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventor: Robert A. Asmus
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Patent number: 5252667Abstract: Poly(vinyl chloride) exhibits a useful combination of acceptable flow for injection molding, improved processability, and acceptable heat distortion resistance and toughness when modified with a multi-stage polymer having as one stage an alkyl (meth)acrylate polymer or copolymer containing a low level of a copolymerized unsaturated acid partly to completely in the form of its alkali metal salt. In preferred compositions, the melt viscosity under injection molding conditions of the blend will be equal to or less than that of the PVC alone.Type: GrantFiled: December 7, 1992Date of Patent: October 12, 1993Assignee: Rohm and Haas CompanyInventor: Hsing-Yeh Parker
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Patent number: 5252393Abstract: The present invention is concerned with a thermal delayed tack composition which is non-adhesive at ordinary temperatures but can be activated and tackified when heated and can maintain its tackiness for a long period of time even after separated from a heat source, and thermal delayed tack sheets prepared by coating basic sheets with this thermal delayed tack composition and then drying the same. The thermal delayed tack sheets have the features that even when they are wound into a roll or superimposed upon each other, no blocking or sticking occurs, and that the tackiness thereof can be maintained for a long period of time even upon a plastic material such as for example polyethylene having low polarity.Type: GrantFiled: May 5, 1992Date of Patent: October 12, 1993Assignee: Mitsubishi Paper Mills Ltd.Inventors: Nobuhiro Kagota, Hirokazu Tsukahara
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Patent number: 5248719Abstract: A solid coating composition based on a polyolefin containing a filler is disclosed. The polyolefin is partly or completely reacted with either an unsaturated organic acid or an unsaturated organic acid anhydride.Type: GrantFiled: June 21, 1991Date of Patent: September 28, 1993Assignee: Huels AktiengesellschaftInventors: Helmut Kehr, Adolf Kuehnle, Heinrich Leppek, Matthias Schleinzer
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Patent number: 5225483Abstract: A thermoplastic composition is provided which comprises a blend of a thermoplastic, such as a copolymer of styrene and maleic anhydride; polypropylene; a modified elastomeric component, such as EPM or EPDM, which has been modified with a specified functional monomer, such as a 2-substituted-5-norbornene, and an amine-modified maleic anhydride grafted polypropylene. The composition has improved properties.Type: GrantFiled: July 22, 1991Date of Patent: July 6, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Sudhin Datta, Narayanaswami R. Dharmarajan, Jean M. Dekoninck, Donald A. White
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Patent number: 5219900Abstract: The invention provides a base coat composition comprising a dispersion in an aqueous carrier for the composition of polymer microparticles, the polymer microparticles being a mixture of:(a) 5 to 95% by weight of addition polymer micro-particles having a crosslinked core and a stabilising mantle containing salt forming groups and(b) 95 to 5% by weight of addition polymer micro-particles having polyoxyalkylene stabiliser units derived from C.sub.1-4 alkoxypolyoxyalkylene containing monomers.Type: GrantFiled: October 2, 1991Date of Patent: June 15, 1993Assignee: Imperial Chemical Industries PLCInventors: Stephen P. Davies, Graham S. Kay
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Patent number: 5219916Abstract: A waterbased coating composition formed of an acrylic latex and an acrylic hydrosol dispersed in an aqueous carrier and has a pH of about 7-10; wherein the binder is a blend of an acrylic latex polymer having a particle size of about 0.06-0.20 microns and an acrylic hydrosol polymer having a particle size of less than 0.30 microns; wherein the blend containsa methylol (meth)acrylamide acrylic latex polymer of polymerized monomers of alkyl methacrylate, alkyl acrylate or mixtures thereof, 1-15% by weight of methylol methacrylamide, methylol acrylamide or mixtures thereof, 0.5-10% by weight of ethylenically unsaturated carboxylic acid having reactive carboxyl groups, 0.5-10% by weight of ethylenically unsaturated hydroxyl monomer and the carboxyl groups of the carboxylic acid component of the polymer are reacted with ammonia or an amine; and an acrylic hydrosol polymer of methylol (meth)acrylamide acrylic polymer containing about 0.5-10% by weight of an ethylenically unsaturated carboxylic acid, 0.Type: GrantFiled: December 5, 1990Date of Patent: June 15, 1993Assignee: E. I. du Pont de Nemours and CompanyInventors: Herman C. Den Hartog, Eileen E. Konsza, James F. Matthews, Ervin R. Werner, Jr.
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Patent number: 5218011Abstract: A gel composition including a gel matrix with a thickener having a water absorbent polymer with pendent anionic groups dispersed therein. Preferred thickeners are organophilic clays such as bentonite and mixtures of such clays with waxes, silica and/or ethylene or polyethylene microspheres.The gel composition is activated with moisture so that the water absorbent polymer migrates to engage and absorb the water. The composition can be used to protect enclosed components or contents from water damage. Also, the gel composition protects wires which carry a small dc current such as the wires of telecommunication cables and splices. The composition eliminates shorts caused by water contact with such wires.Type: GrantFiled: May 20, 1991Date of Patent: June 8, 1993Assignee: WaterGuard Industries, Inc.Inventor: Clarence S. Freeman
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Patent number: 5211827Abstract: An electrochemical cell employs an ionic semiconductor material as a separator between an anolyte and a catholyte. Ionic semiconductor material includes 10 to approximately 50 percent by weight of a hydrogel which is dispersed within an inert nonporous matrix material to form a composite wherein the quantity of water that can be absorbed by the composite does not substantially exceed the weight of the composite.Type: GrantFiled: August 5, 1991Date of Patent: May 18, 1993Assignee: T and G CorporationInventor: Robert L. Peck
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Patent number: 5208285Abstract: Wet adhesion properties comparable or superior to all-acrylic latexes for vinyl acetate copolymers and other low cost polymers, such as EVA-vinyl chloride copolymers, is achieved by blending a minor proportion, usually about 5 to 15%, of a small particle size copolymer containing copolymerized wet adhesion monomer which is a cyclic ureido. Very low quantities of the wet adhesion monomer, less than 0.25 wt% of total monomers, only are required to achieve excellent results.Type: GrantFiled: August 16, 1991Date of Patent: May 4, 1993Assignee: National Starch and Chemical Investment Holding CorporationInventors: Clarke A. Boyce, Rajeev Farwaha, Brigitte H. Licht, Martin Menard
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Patent number: 5206279Abstract: Aqueous dispersions of ethylene/.alpha.,.beta.-unsaturated carboxylic acid interpolymers (e.g., random ethylene/acrylic acid interpolymers) are formed using a mixture of bases at a concentration of at least about 0.2 equivalents of base per mole of .alpha.,.beta.-unsaturated carboxylic acid. The dispersions have at least about 10 weight percent dispersed solids and not more than about 1 weight percent of the initial polymer in non-dispersed form. Preferred bases for use in forming the dispersions are ammonium hydroxide and/or alkali metal hydroxides. A mixture of ammonium hydroxide and potassium hydroxide is especially preferred for forming the dispersions with ethylene/acrylic acid interpolymers at an ammonium hydroxide:acrylic acid molar ratio of about 1:1 and a potassium hydroxide:acrylic acid molar ratio in the range of about 0.6-0.8:1. The dispersions are particularly useful in forming thin coatings of adhesive on substrates, such as paper and metal foil, using conventional techniques.Type: GrantFiled: January 25, 1991Date of Patent: April 27, 1993Assignee: The Dow Chemical CompanyInventors: Michael E. Rowland, Kenneth E. Springs
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Patent number: 5204401Abstract: There is disclosed a metallic and nonmetallic water borne base coat compositions exhibiting excellent appearance. A method for long term stability and the introduction of aluminum flake pigments into a water borne coating is also disclosed. The method is based on storing the aluminum flake in a solvent environment with introduction of the aluminum flake in to the aqueous environment just before appling the base coat coating. A water reducible acrylic resin with nonionic and acid functionality derived from vinyl monomers having nonionic and urethane functionality has been disclosed that allows for direct introduction of aluminum flake in to an aqueous environment. The coating vehicle is based on acrylic latex vehicle which exhibits excellent drying and film properties. The rheology control agent employed allows for a wetter application of the coating to the substrate. The coating compositions disclosed are also in compliance with current and proposed volatile organic compound regulations.Type: GrantFiled: July 13, 1990Date of Patent: April 20, 1993Assignee: BASF CorporationInventors: James L. Anderson, Jr., Horst J. Finkenauer, David L. Newton, Jeff P. Jones
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Patent number: 5202381Abstract: This invention relates to improved poly(vinyl chloride) compositions which contain ionomeric additive polymers, and to a process for preparing such compositions.Type: GrantFiled: April 4, 1990Date of Patent: April 13, 1993Assignee: Rohm and Haas CompanyInventor: Hsing-Yeh Parker
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Patent number: 5198301Abstract: Films are provided made from ionomeric polymer resins with 2-40% by weight of a filler material, where the film has a thickness between 0.050 and 0.127 mm. These films are highly flexible and conformable. Adhesive composites comprising these films are also provided.Type: GrantFiled: May 17, 1991Date of Patent: March 30, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Patrick J. Hager, Del A. Kauss, Janet T. Keller
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Patent number: 5196469Abstract: A semi-aqueous ethylene-vinyl alcohol coating composition that is a stable, homogeneous solution which is capable of being easily applied to a substrate to form a multi-layer structure at room temperature, by spray, rod, gravure, or other mechanical means. Upon evaporation of the volatile components, this coating solution leaves a clear, homogeneous film comprising EVOH. The film resists degradation and discoloration during the lifetime of the structure, and upon incineration or recycling does not evolve harmful acids into the environment.Type: GrantFiled: March 28, 1991Date of Patent: March 23, 1993Assignee: Mica CorporationInventors: Virginia P. Cushing, Daniel Siegel
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Patent number: 5194184Abstract: A flame-retardant resin composition comprising (i) a mixture comprising (A) 50 to 90% by weight of a polyolefin resin, (B) 10 to 50% by weight of a polyamide resin, (C) 1 to 5% by weight of a polyolefin resin modified by an unsaturated carboxylic acid or a derivative thereof, (D) 25 to 55% by weight of a hydrated metal oxide and (E) 0 to 10% by weight of antimony trioxide; the total of the polyolefin resin (A) and the polyamide resin (B) being from 30 to 74% by weight of the mixture (i); and (ii) glass fibers (F) in an amount of 18 to 70 parts by weight to 100 parts by weight of the mixture (i). The resin composition is not toxic and has an excellent flame-retardant property and a high mechanical strength.Type: GrantFiled: February 24, 1992Date of Patent: March 16, 1993Assignee: Idemitsu N.S.G. Co., Ltd.Inventors: Yoshiharu Takeyama, Shuichi Yamagami
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Patent number: 5194483Abstract: Disclosed herein are water-based protective composition for coating films. The compositions contain (a) a water-based dispersion of copolymer particles having a number average molecular weight of from 2,000 to 20,000 and a glass transition point of from -10.degree. C. to +40.degree. C. and obtained by emulsion-polymerizing 100 parts by weight of a monomer mixture consisting substantially of (X) 7-12 parts by weight of an .alpha.,.beta.-monoethylenically-unsaturated carboxylic acid and (Y) 88-93 parts by weight of at least one ester selected from the group consisting of C.sub.1-4 -alkyl acrylates and C.sub.1-4 -alkyl methacrylates; as well as specific amounts of (b) an ultraviolet absorber, (c) an antioxidant, (d) a thickening agent and (e) a surface active agent. They can form barrier coats having excellent removability, weatherability, water-proofness, heat resistance and coating-film-protecting property. Their preparation processes are also disclosed.Type: GrantFiled: November 20, 1991Date of Patent: March 16, 1993Assignee: Nippon Oil Co., Ltd.Inventor: Nobuaki Kawabata
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Patent number: 5180774Abstract: A binder for use in gravure printing ink formulations comprising a modified rosin ester resinate prepared by forming a rosin-dienophile adduct, reacting the adduct with a polyfunctional hydroxy compound to form an ester and reacting with an acrylic-containing polymer to form a hard rosin ester. The polymer-modified rosin ester resinate is formed by reacting the prepared hard rosin ester with a rosin-dienophile adduct and an acrylic-containing polymer, reacting the product thereof with reactive zinc, followed by a reaction with lime, dehydrating the resinate product by refluxing, and adjusting its viscosity with a hydrocarbon solvent.Type: GrantFiled: November 4, 1991Date of Patent: January 19, 1993Assignee: Westvaco CorporationInventor: Joseph W. LeVine
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Patent number: 5179165Abstract: A composition suitable for encapsulating articles such as small electronic devices and having improved tensile strength and other mechanical properties. The composition comprises a poly(phenylene sulfide) base resin, a non-reinforcing mineral filler and an ethylene/methacrylic acid copolymer. Also provided are a method of forming the composition and articles such as electronic components encapsulated with the composition.Type: GrantFiled: June 12, 1991Date of Patent: January 12, 1993Assignee: International Flavors & Fragrances Inc.Inventor: Nathaniel Harry, Sr.
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Patent number: 5171777Abstract: Blends of polymers of vinyl acetate and polymers derived from acrylic acid have been discovered which exhibit thermodynamic miscibility. These polymer blends exhibit excellent mechanical compatibility, provide enhanced toughness and strength superior to the sum of the weight averaged properties of the constituent polymers and are useful in molding structures such as films and in compounded formulations such as coatings, emulsions and adhesives.Type: GrantFiled: December 26, 1990Date of Patent: December 15, 1992Assignee: Air Products and Chemicals, Inc.Inventors: Jeffrey A. Kuphal, Lloyd M. Robeson, Dennis Sagl
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Patent number: 5168105Abstract: There is disclosed a metallic and nonmetallic water borne base coat compositions exhibiting excellent appearance. A method for long term stability and the introduction of aluminum flake pigments into a water borne coating is also disclosed. The method is based on storing the aluminum flake in a solvent environment with introduction of the aluminum flake in to the aqueous environment just before appling the base coat coating. A water reducible acrylic resin with nonionic and acid functionality has been disclosed that allows for direct introduction of aluminum flake in to an aqueous environment. The coating vehicle is based on acrylic latex vehicle which exhibits excellent drying and film properties. The rheology control agent employed allows for a wetter application of the coating to the substrate. The coating compositions disclosed are also in compliance with current and proposed volatile organic compound regulations.Type: GrantFiled: September 10, 1990Date of Patent: December 1, 1992Assignee: BASF CorporationInventors: James L. Anderson, Jr., Horst J. Finkenauer, David L. Newton, Jeff P. Jones
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Patent number: 5166255Abstract: There is disclosed a metallic and nonmettalic water borne base coat compositions exhibiting excellent appearance. A method for long term stability and the introduction of aluminum flake pigments into a water borne coating is also disclosed. The method is based on storing the aluminum flake in a solvent environment with introduction of the aluminum flake in to the aqueous environment just before applying the base coat coating. A water reducible acrylic resin with nonionic and acid functionality has been disclosed that allows for direct introduction of aluminum flake in to an aqueous environment. The coating vehicle is based on acrylic latex vehicle which exhibits excellent drying and film properties. The rheology control agent employed allows for a drier application of the coating to the substrate. The coating compositions disclosed are also in compliance with current and proposed volatile organic compound regulations.Type: GrantFiled: September 10, 1990Date of Patent: November 24, 1992Assignee: BASF CorporationInventors: James L. Anderson, Jr., Horst J. Finkenauer, David L. Newton, Jeff P. Jones, Craig J. McClanahan
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Patent number: 5162422Abstract: Novel polypropylene-polyamide molding compositions which comprise, based on 100 parts by weight of the molding compositions,A) 10 to 89.9 parts by weight of one or more polypropylene homopolymer and/or copolymer,B) 10 to 89.9 parts by weight of one or more polyamide,C) 0.1 to 5.0 parts by weight of one or more olefinically unsaturated carboxylic acid and/or one or more olefinically unsaturated carboxylic acid derivate,D) 0 to 3.0 parts by weight of an impact modifier, andE) 0 to 60.0 parts by weight of a reinforcing agent and/or additive,are prepared by melting together components (A), (C) and, if desired (D) at from 200.degree. to 300.degree. C. in a first reaction step and then, in a second reaction step, introducing component (B) and, if appropriate, components (D) and/or (E) into the modified melt obtained, and melting together the components.The molding compositions obtained are used for the production of moldings.Type: GrantFiled: June 8, 1990Date of Patent: November 10, 1992Assignee: BASF AktiengesellschaftInventors: Dietrich Lausberg, Wolfgang F. Mueller, Erhard Seiler
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Patent number: 5162392Abstract: An injection moldable biodegradable plastic formed of corn starch and low-density polyethylene. Ethylene acrylic acid co-polymer can be included in proportions ranging from 0-10%, by weight, and sodium hydroxide can be utilized to neutralize the acidic portions of the ethylene acrylic acid co-polymer. When no ethylene acrylic acid co-polymer is utilized, glycerol is added. To improve injection molding characteristics, the ethylene acrylic acid co-polymer and polyethylene are premixed before the addition of corn starch.Type: GrantFiled: November 13, 1990Date of Patent: November 10, 1992Assignee: Agri-Tech Industries, Inc.Inventors: Richard P. Wool, David C. Schiltz, Dale Steiner
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Patent number: 5147757Abstract: A novel optically transparent polymer alloy comprisesA) at least one elastomer which contains ethylene and propylene as copolymerized units andB) at least one elastomer which contains ethylene and (meth)acrylic acid as copolymerized units,and is used as a molding material or for the production of molding materials, moldings, films, coatings, adhesives and photosensitive recording elements.Type: GrantFiled: September 17, 1991Date of Patent: September 15, 1992Assignee: BASF AktiengesellschaftInventors: Karl-Rudolf Kurtz, Horst Koch, Thomas Telser
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Patent number: 5137963Abstract: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group conjugated with the olefinic linkage, which is reacted with a hydroxyalkyl ester of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier to produce a binder composition which will reach substantially fully cured wet strength in 8 seconds or less.Type: GrantFiled: July 27, 1990Date of Patent: August 11, 1992Assignee: Union Oil Company of CaliforniaInventor: Dennis P. Stack
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Patent number: 5116899Abstract: The present invention is directed to a resin composition for electric insulation materials for vehicles such as distributor caps which is prepared by blending a crystalline propylene-ethylene copolymer resin with 3 to 10 wt. % of a glass fiber, 10 to 20 wt. % of talc or mica, 5 to 20 wt. % of silica, 4 to 20 wt. % of modified polyolefin resins, 10 to 30 wt. % of halogen-containing flame retardants and 3 to 15 wt. % of flame retardant auxiliaries. In the resin composition of the present invention, balance is kept in all points of mechanical characteristics, mechanical characteristics at high temperature, electrical characteristics, nitric acid resistance, weld characteristics, blooming resistance, corona resistance and flame retardance.Type: GrantFiled: August 8, 1991Date of Patent: May 26, 1992Assignees: Chisso Corporation, Nippondenso Co., Ltd.Inventors: Kazuhiko Aratake, Masayoshi Horikoshi, Fumio Kato, Yasuhiko Suzuki, Yuki Morimoto
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Patent number: 5106881Abstract: A water base pigment ink composition for use in marking pens which contain an absorbent ink reservoir and a pen tip connected thereto, the ink composition comprising:(a) water in amounts of not less than 50% by weight;(b) an aqueous emulsion of hollow resin particles in amounts of 0.5-40% by weight as solids;(c) a white pigement in amounts of 1-40% by weight; and(d) a water-solubilized .alpha.-methylstyrene/styrene/acrylic acid copolymer which has a weight average molecular weight of 1000-10000 and a distribution of molecular weight of 0.5-3.3, but which contains substantially no components having a weight average molecular weight of not more than 500, in amounts of 0.1-30% by weight, based on the ink compositions, respectively.The ink composition may contain chromatic or achromatic (other than white) pigments in amounts of 0.1-30% by weight based on the ink composition.Type: GrantFiled: March 11, 1991Date of Patent: April 21, 1992Assignee: Sakura Color Products Corp.Inventors: Hiroshi Inoue, Wataru Yokono, Yasuji Okuda
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Patent number: 5102946Abstract: A stabilized chlorinated resin latex comprising a mixture in water of A) 50-95 wt. %, based on the weight of A and B, of a chlorinated resin, substantially free of acid moieties, having a chlorine content of 15-70 wt. %, and B) 5-50 wt. %, based on the weight of A and B, of a salt of a water-insoluble C.sub.2 -C.sub.12 alpha, beta- unsaturated olefin copolymer which contains at least 2 mole % acid moieties and is compatible with the chlorinated resin.Type: GrantFiled: June 27, 1991Date of Patent: April 7, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: John C. Chen, Royce E. Ennis
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Patent number: 5098948Abstract: Disclosed herein are water-based protective composition for coating films. The compositions contain (a) a water-based dispersion of copolymer particles having a number average molecular weight of from 2,000 to 20,000 and a glass transition point of from -10.degree. C. to +40.degree. C. and obtained by emulsion-polymerizing 100 parts by weight of a monomer mixture consisting substantially of (X) 7-12 parts by weight of an .alpha.,.beta.-monoethylenically-unsaturated carboxylic acid and (Y) 88-93 parts by weight of at least one ester selected from the group consisting of C.sub.1-4 -alkyl acrylates and C.sub.1-4 -alkyl methacrylates; as well as specific amounts of (b) an ultraviolet absorber, (c) an antioxidant, (d) a thickening agent and (e) a surface active agent. They can form barrier coats having excellent removability, weatherability, waterproofness, heat resistance and coating-film-protecting property. Their preparation processes are also disclosed.Type: GrantFiled: June 5, 1990Date of Patent: March 24, 1992Assignee: Nippon Oil Co.Inventor: Nobuaki Kawabata
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Patent number: 5093449Abstract: A styrene-butadiene composition containing about 0.1 to 10 weight % of a monoester of maleic acid or fumaric acid provides improved bonding strength. In addition, small amounts of a functional monomer can also be included.Type: GrantFiled: October 24, 1989Date of Patent: March 3, 1992Assignee: Reichhold Chemicals, Inc.Inventors: Rebecca L. Durney Cronin, W. Scott Rutherford, James F. Campbell
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Patent number: 5079281Abstract: A fiber-reinforced polypropylene resin composition is disclosed, comprising (1) a mixed polymer of polypropylene and carboxyl group containing polypropylene, (2) a silane treated reinforcing fiber, and (3) a coloring component of zinc sulfide and carbon black with a dispersing agent compounded thereto, said dispersing agent is polyethylene wax and the amount of said dispersing agent added to 20 to 50 parts by weight per 100 parts by weight of the zinc sulfide and carbon black.Type: GrantFiled: November 28, 1989Date of Patent: January 7, 1992Assignee: Toyoda Gosei Co., Ltd.Inventors: Junji Takeuchi, Masahiro Takimoto
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Patent number: 5078994Abstract: A copolymer microparticle is presented which is derived from at least about 5 weight percent of free carboxylic acid group-containing vinyl monomers, monomers which have a poly(alkylene oxide) appended thereto, oleophilic monomers and other nonionic hydrophilic monomers. Microgels containing these copolymers having a median water swollen diameter of about 0.01 to about 1.0 micrometer are disclosed. Pharmaceutical and diagnostic compositions are disclosed comprising a therapeutic or diagnostic agent and microgels comprising a copolymer derived from at least about 5 weight percent of non-esterified carboxylic acid group-containing vinyl monomers, oleophilic monomers and other nonionic hydrophilic monomers, with the proviso that when the median water swollen diameter of the microgels is 0.1 micrometer or greater, at least 5 weight percent of the monomers have a poly(alkylene oxide) appended thereto.Type: GrantFiled: April 12, 1990Date of Patent: January 7, 1992Assignee: Eastman Kodak CompanyInventors: Mridula Nair, Julia S. Tan
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Patent number: 5059456Abstract: A method for improving the quality of a mastic coating system by using a latex barrier tiecoat which is composed of a water-insoluble latex polymer and a multivalent metal ion. The tiecoat is applied to a substrate and then a mastic coating is applied to the tiecoat to yield a mastic coating system having excellent resistance to blistering when the mastic coating system is exposed to long-term ponded water.Type: GrantFiled: May 4, 1990Date of Patent: October 22, 1991Assignee: Rohm and Haas CompanyInventors: Gary R. Larson, George A. Papsin, Jr., Donald A. Winey
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Patent number: 5047482Abstract: Cable insulation having high resistance to the formation or growth of water trees and high aging resistance consists of an ethylene polymer (I) and from 0.5 to 20% by weight of an ethylene polymer (II), which is an ethylene/C.sub.1 -C.sub.8 -alkyl-C.sub.3 -C.sub.6 -alkene carboxylate/C.sub.3 -C.sub.6 -alkenecarboxylic acid terpolymer.Type: GrantFiled: March 5, 1987Date of Patent: September 10, 1991Assignee: BASF AktiengesellschaftInventors: Johannes Schlag, Ernst Koehnlein, Peter Bauer, Ludwig Koessler
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Patent number: 5043377Abstract: Disclosed herein is granite-like artificial stone which comprises a matrix and chips dispersed therein, said matrix being a cured product of specific radical-polymerizable monomers and an inorganic filler powder, and said chips being a cured product of a mixture (II) which contains the components identical or similar to those in the mixture (I) but giving a different clarity and/or color tone from the cured product of the mixture (I). The artificial stone gives the appearance of granite and is superior in fabricability, heat resistance, hot water resistance, weather resistance, yellowing resistance, and stain resistance.Type: GrantFiled: September 29, 1989Date of Patent: August 27, 1991Assignee: Nippon Shokubai Kagaku Kogyo Company, Ltd.Inventors: Kozo Nogi, Chihiro Tani, Nobuhiko Yukawa, Terukuni Hashimoto
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Patent number: 5032462Abstract: Coating compositions comprise a thixotropic resin dispersion in which the resin particles are a vinyl polymer, a cross-linked unsaturated carboxylic acid polymer which is neutralized with a salt of a low valence metal, and an adhesion promoter.Type: GrantFiled: July 18, 1989Date of Patent: July 16, 1991Assignee: The B. F. Goodrich CompanyInventor: Jongshun S. Kim
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Patent number: 5030662Abstract: Construction materials prepared from recycled polymeric material containing primarily polyolefins such as high density polyethylene, ultra high molecular weight polyethylene, low density polyethylene, linear low density polyethylene, and polypropylene homopolymers and copolymers are useful for profiled extruded forms such as fence posts, door frames, rails, railway sleepers, and other applications where lumber is conventionally employed. The compositions of the invention contain, in addition to the mixed plastic matrix, reactive compatibilizers, impact modifiers, and reinforcing agents. When desired, foaming agents may also be employed. The recycled mixed plastic materials have been subject to at least one high temperature processing step when used in their original application. Such plastics differ in physical and chemical composition from virgin material.Type: GrantFiled: August 11, 1988Date of Patent: July 9, 1991Assignee: Polymerix, Inc.Inventor: Asis K. Banerjie
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Patent number: 5030682Abstract: Disclosed is a glass fiber reinforced polyolefin resin composition comprising 15-80% by weight of polypropylene, 20-60% by weight of polybutene-1 and 5-60% by weight of glass fiber. This resin composition is excellent in the balance of impact strength, stiffness, heat distortion temperature, surface hardness and processability. When this composition is molded, the molded products have no surface roughness and no color shade and have good appearance. The properties are further improved when a modified polyolefin alone or together with a crystal nucleating agent are added.Type: GrantFiled: July 31, 1989Date of Patent: July 9, 1991Assignee: Idemitsu Petrochemical Company LimitedInventors: Manabu Nomura, Hirohide Mizuno, Kaoru Wada
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Patent number: 5028655Abstract: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group conjugated with the olefinic linkage, which is reacted with a hydroxyalkyl ester of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier to produce a binder composition which will reach substantially fully cured wet strength in 8 seconds or less.Type: GrantFiled: December 15, 1987Date of Patent: July 2, 1991Assignee: Union Oil Company of CaliforniaInventor: Dennis P. Stack
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Patent number: 5019621Abstract: Acrylate copolymers containing hydroxyl groups as additives for aqueous anionic paint systems for the purpose of preventing surface defects are described. The acrylate copolymers contain selected amounts of hydroxyl groups originating from hydroxyethyl (meth)acrylates or hydroxypropyl (meth)acrylates, in addition to carboxyl groups neutralizable with bases. The additives are used in amounts of from 0.1 to 2.0% by weight, calculated on solids content and based on the total solids content of the binder in the paint.Type: GrantFiled: September 28, 1989Date of Patent: May 28, 1991Assignee: Vianova Kunstharz, A.G.Inventors: Harald Rauch-Puntigam, Werner Staritzbichler, Peter Morre
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Patent number: 5010120Abstract: The invention provides a solid adhesive composition useful for temporary and repeated fixation of an article on a surface which comprises about 5.0 to about 45 weight percent of an acrylic resin having a glass transition point of -10.degree. C. or below about 0.1 to about 2.0 weight percent of a polyacrylic acid-based thickening agent, about 5.0 to about 30 weight percent of a fatty acid soap, about 0.1 to about 2.0 weight percent of an alkali hydroxide, about 0.1 to about 10 weight percent of microspheres with an average grain size of about 10 to about 200 .mu.m and about 2.0 to about 60 weight percent of water.Type: GrantFiled: July 5, 1990Date of Patent: April 23, 1991Assignee: Sakura Color Products CorporationInventor: Koji Sugiura
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Patent number: 5009536Abstract: A water base pigment ink composition for use in marking pens which contain an absorbent ink reservoir and a pen tip connected thereto, the ink composition comprising:(a) water in amounts of not less than 50% by weight;(b) an aqueous emulsion of hollow resin particles in amounts of 0.5-40% by weight as solids;(c) a white pigment in amounts of 1-40% by weight; and(d) a water-solubilized .alpha.-methylstyrene/styrene/acrylic acid copolymer which has a weight average molecular weight of 1000-10,000 and a distribution of molecular weight of 0.5-3.3, but which contains substantially no components having a weight average molecular weight of not more than 500, in amounts of 0.1-30% by weight, based on the ink compositions, respectively.The ink composition may contain chromatic or achromatic (other than white) pigments in amounts of 0.1-30% by weight based on the ink composition.Type: GrantFiled: June 8, 1990Date of Patent: April 23, 1991Assignee: Sakura Color Products Corp.Inventors: Hiroshi Inoue, Wataru Yokono, Yasuji Okuda
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Patent number: 5008326Abstract: Non-formaldehyde emitting binders for nonwoven cellulosic materials comprise a solution copolymer of an olefinically unsaturated organic compound having at least one carboxylate group conjugated with the olefinic linkage, which is reacted with a hydroxyalkyl ester of an olefinically unsaturated carboxylic acid. The product of said reaction is admixed with a non-formaldehyde containing latex carrier to produce a binder composition which will reach substantially fully cured wet strength in 8 seconds or less.Type: GrantFiled: July 27, 1990Date of Patent: April 16, 1991Assignee: Union Oil Company of CaliforniaInventor: Dennis P. Stack
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Patent number: 5004501Abstract: The invention relates to a two phase cement mixture which is particularly suitable for orthopaedic use, in which the solid phase comprises a polymer, polymetyl methacrylate, and a catalyst, benzoyl peroxide, while the liquid phase comprises a monomer, monomethyl methacrylate, an accelerator, N-N-dimethyl-p-toluidine and hydroquinone. The said polymetyl methacrylate is in powder form with particles of a spherical shape which are of a suitable particle size. Fluoride in form of salt can be added to the said solid phase, realizing fluoride ions, making them available to the part of the bone with which the said mixture is in contact when is used to attach a prothesis to a bone.Type: GrantFiled: May 16, 1989Date of Patent: April 2, 1991Assignee: Tecres SpaInventors: Giovanni Faccioli, Basilio M. De Bastiani, Bruno Magnan, Renzo Soffiatti
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Patent number: 4997720Abstract: Thermoplastic compositions and articles made therefrom which have a high receptivity toward automotive paints comprises the following components:2%-25% of a copolymer of an ethylenically unsaturated carboxylic acid and ethylene,3%-50% of an elastomer comprising an ethylene-alpha-olefin copolymer,1%-50% of a crystalline homopolymer or copolymer of propylene,5%-40% of polyethylene or a copolymer of ethylene and an alpha-olefin,2%-20% of an epoxy or phenoxy resin; andoptionally, up to 50% of an inorganic filler. Such articles, when injection molded, exhibit flexural moduli in the range of 100,000 to 200,000 psi and have excellent paintability, a broad range of stiffness values and high impact and tensile strengths suitable for automotive applications such as bumpers, facias and wheel covers.Type: GrantFiled: July 19, 1990Date of Patent: March 5, 1991Assignee: Dexter CorporationInventors: Edward Bourbonais, Davei Yu, Khemchand Nangrani
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Patent number: 4992486Abstract: A composition stabilized against thermal crosslinking and consequent reduction of its melt index, consisting essentially of a uniform dispersion of alumina-coated titanium dioxide pigment in a blend of a matrix polymer which is a dipolymer of ethylene with an ethylenically unsaturated carboxylic acid or a terpolymer of ethylene with an ethylenically unsaturated carboxylic acid and with another ethylenically unsaturated comonomer, or with carbon dioxide or sulfur dioxide, with a stabilizing polymer which is a high melt index copolymer of ethylene with acrylic or methacrylic acid. Such compositions are useful in melt-fabricating white-pigmented articles such as, e.g., toothpaste tubes and condiment pouches.Type: GrantFiled: November 14, 1989Date of Patent: February 12, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventor: Stewart C. Feinberg
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Patent number: 4985486Abstract: The invention relates to thermoplastic molding compounds of reinforced (for example with glass fibers) and/or filled (for example with kaolin) polyamides, interpolymers having a certain chemical composition (of polyamides and thermoplastic copolymers) and, optionally, a rubber modifier which increases the toughness of the molding compounds, and to a process for their production.Type: GrantFiled: August 3, 1989Date of Patent: January 15, 1991Assignee: Bayer AktiengesellschaftInventors: Uwe Westeppe, Christian Lindner, Karl-Erwin Piejko, Hans-Joachim Laue
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Patent number: 4983426Abstract: A method for improving the quality of a mastic coating system by using a selected tiecoat composition. The tiecoat is applied to a substrate in order to correct substrate problems which would cause premature failure of a mastic coating applied directly to the substrate. The mastic coating is then applied to the tiecoat to yield a superior mastic coating system.Type: GrantFiled: October 24, 1988Date of Patent: January 8, 1991Assignee: Rohm and Haas CompanyInventor: Arthur D. Jordan, Jr.