Solid Polymer Derived From Ethylenic Reactants Only Patents (Class 524/32)
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Patent number: 4970247Abstract: Improved cellulose ester dispersions in the aqueous phase contain dispersed particles which contain cellulose esters, a polymerized monomer A having a polymerizable double bond and a polymerized monomer B having at least two polymerizable double bonds.Type: GrantFiled: March 13, 1989Date of Patent: November 13, 1990Assignee: Wolff Walsrode AktiengesellschaftInventors: Lutz Hoppe, Wolfgang Koch, Erhard Luhmann, Michael Piepho
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Patent number: 4926673Abstract: Resilient, crosslinked silicone elastomers shaped as elastoforming dies or form blocks for the stamping of sheet material workpieces, e.g., ultra-thin sheet metal, and well adopted for applications in the automotive industry, include a crosslinked fluid organopolysiloxane having at least one silicone-compatible organic or inorganic plasticizer within the crosslinked network thereof, said at least one plasticizer being stable and nonmigrating under elastoforming stamping conditions, and said at least one plasticizer being present in such amount that said plasticized silicone elastomer has a Shore 00 hardness of less than about 40.Type: GrantFiled: January 27, 1989Date of Patent: May 22, 1990Assignee: Rhone-Poulenc ChimieInventors: Claude Laurent, Paul Rostaing, Rene Lyobard
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Patent number: 4923727Abstract: A lightsafe masking film is disclosed which comprises a substrate, and a peelable lightsafe layer provided over the surface of the substrate and including a lightsafe substance, a copolymer containing vinyl chloride, and a mixture of a first nitrile rubber containing 25-30% by weight of acrylonitrile and a second nitrile rubber containing 31-35% by weight of acrylonitrile.Type: GrantFiled: February 16, 1989Date of Patent: May 8, 1990Assignee: Somar CorporationInventors: Hiroshi Maruyama, Naohiko Kiryu, Etsuko Minezaki
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Patent number: 4900621Abstract: Disclosed herein are free-standing, pinhole-free, ultrathin, blended, cellulose nitrate films having thicknesses of about 400 angstroms or less and a process to prepare them. The films find particular utility in separatory applications.Type: GrantFiled: January 29, 1988Date of Patent: February 13, 1990Assignee: Hoechst Celanese CorporationInventor: Rachel S. Kohn
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Patent number: 4866111Abstract: A coating composition comprising nitrocellulose; a copolymer of ethylene and an ethylenically unsaturated ester of a saturated fatty acid, said copolymer comprising between about 40% and about 90% by weight of said ester, said copolymer characterized by a kinematic viscosity at 140.degree. C. of up to about 30,000 centipoise, said copolymer present in an amount of more than about 25% to about 60% by weight, based on the total weight of said nitrocellulose and said copolymer; and an organic solvent system for said nitrocellulose and said copolymer is disclosed.Type: GrantFiled: November 5, 1987Date of Patent: September 12, 1989Assignee: National Distillers and Chemical CorporationInventors: Joseph R. Patterson, Jr., Lorrin W. Pyle
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Patent number: 4855342Abstract: Previous coating materials lead to the formation of bubbles at high layer thickness and when drying by heating. The new coating materials are intended to be bubble-free when dried at higher layer thicknesses.Aside from pigments and/or extenders, the coating material contains solvents and, if necessary, conventional paint auxiliaries in a vehicle mixture, comprising essentially 60-75% by weight of a hydroxy-functional copolymer, 1-5% by weight of an ester-soluble nitrocellulose and 25-35% by weight of difunctional or multifunctional polyisocyanate. It can be cured without forming bubbles even when applied in thick layers.Use as primer and filler.Type: GrantFiled: November 19, 1987Date of Patent: August 8, 1989Assignee: Herberts GesellschaftInventors: Heinz D. Becker, Klaus Bederke, Ralf Dahm, Hermann Kerber, Fritz Sadowski, Werner Stephan
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Patent number: 4833201Abstract: The polymerization of acetylene in the presence of polymers using certain nickel catalysts results in polyacetylene-containing polymer products which are readily processed while retaining their electrical properties.Type: GrantFiled: January 12, 1988Date of Patent: May 23, 1989Assignee: Bayer AktiengesellschaftInventors: K. H. Aleksander Ostoja Starzewski, Josef Witte
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Patent number: 4804695Abstract: Methods for producing spray cellulosic insulation and for wet spray open cavity installation of such material. Processed cellulosic fibers are moistened with an expansion agent, preferably comprising water with a wetting agent mixed therein. For installation, a composition preferably comprising an adhesive and a wetting agent in water is used to moisten the material as it is blown into place.Type: GrantFiled: September 3, 1987Date of Patent: February 14, 1989Assignee: Western Fibers, Inc.Inventor: Paul H. Horton
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Patent number: 4784708Abstract: Gluability of a resin-coated surface of polyester film is enhanced by applying to the surface a composition comprising ethylene vinyl acetate, nitrocellulose and rosin-modified maleic resins.Type: GrantFiled: June 11, 1986Date of Patent: November 15, 1988Assignee: Waldorf CorporationInventor: Robert L. Allen
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Patent number: 4772329Abstract: Aqueous coating agent dispersions comprisingA. from 3 to 30% by weight of cellulose nitrate,B. from 10 to 50% by weight of at least one liquid prepolymer, which is optionally emulsifiable in water even in the absence of emulsifier, which contains from 0.01 to 1.3 mols/100 g of prepolymer of polymerizable C--C double bonds,C. from 0 to 25% by weight of at least one liquid prepolymer, which is not emulsifiable in water in the absence of emulsifier, which contains from 0.01 to 1.3 mols/100 g of prepolymer of polymerizable C--C double bonds and has a maximum acid value of 25 and a maximum viscosity at 23.degree. C. of 60 Pa.s,D. from 0 to 20% by weight of an organic solvent with an evaporation number of <20,E. from 0 to 15% by weight of a plasticizer,F. from 0 to 5% by weight of a conventional emulsifier,G. from 0 to 10% by weight of further conventional additives, andH. water as the remainderthe total of A-H always being 100% by weight and if B=C, the quantity of emulsifier has to be >0.Type: GrantFiled: December 17, 1986Date of Patent: September 20, 1988Assignee: Bayer AktiengesellschaftInventors: Erhard Luhmann, Lutz Hoppe, Klaus Szablikowski
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Patent number: 4772646Abstract: The present invention relates to a liquid suspension of a high molecular weight, water-soluble polymer or water-soluble salt prepared by admixing and water-soluble polymer with a hydrocarbon carrier fluid and a suspending agent comprising an aqueous emulsion of a copolymer comprising a water-insoluble and substantially hydrocarbon-insoluble polymer consisting of particles having a dry weight average particle size of below 10 .mu.m and which is formed from monomers of which 80% to 100% are hydrophobic, 30 to 100% are polar and 0% to 20% are hydrophilic. More particularly, the copolymer comprises from about 80% to about 100% C.sub.1-30 alkyl methacrylate monomers and from about 0% to about 20% hydrophilic monomers. Preferably, the copolymer comprises 90% to 100% 2-ethylhexylacrylate and from about 0.5% to about 10% acrylic acid. The liquid suspension is capable of supporting about 5 pounds of water-soluble polymer per gallon of suspension.Type: GrantFiled: November 17, 1986Date of Patent: September 20, 1988Assignee: Halliburton CompanyInventors: Weldon M. Harms, Lewis R. Norman
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Patent number: 4769422Abstract: The polymerization of acetylene in the presence of polymers using certain nickel catalysts results in polyacetylene-containing polymer products which are readily processed while retaining their electrical properties.Type: GrantFiled: July 3, 1986Date of Patent: September 6, 1988Assignee: Bayer AktiengesellschaftInventors: K. H. Aleksander O. Starzewski, Josef Witte
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Patent number: 4735976Abstract: A polymer blend comprising cellulose nitrate and a polymer characterized in that (a) the polymer comprises at least 70 weight percent of polymerized recurring units derived from a hydrophobic monomer selected from the group consisting of styrene, alkyl acrylates and alkyl methacrylates and 10 to 24 weight percent of polymerized recurring units derived from an acid monomer selected from the group consisting of methacrylic acid and acrylic acid; and (b) the blend comprises from 20 to 70 weight percent of cellulose nitrate and from 8 to 15 weight percent of the polymerized recurring acid monomer and is useful as a protective layer in radiation-sensitive elements.Type: GrantFiled: June 18, 1986Date of Patent: April 5, 1988Assignee: Eastman Kodak CompanyInventors: David J. Steklenski, Philip L. Keogh
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Patent number: 4726845Abstract: A writing ink composition having a pseudoplasticity index value between about 0.02 and 0.18, a low-shear viscosity between about 25,000 and 120,000 cP, and a high-shear viscosity between about 6 and 26 cP can be used in a hybrid, ball-point marking instrument which combines advantageous features of both paste-ink and liquid-ink ballpens. The writing ink can be prepared using a colloid milling procedure.Type: GrantFiled: June 4, 1986Date of Patent: February 23, 1988Assignee: Parker Pen (Benelux) B.V.Inventors: John Thompson, Philip Wallis
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Patent number: 4681784Abstract: A lightsafe masking film which comprises a substrate of plastic film, a pressure sensitive adhesive layer formed thereon, and a lightsafe peelable layer formed on said adhesive layer, comprising (a) nitrile rubber, (b) nitrocellulose, (c) a tackiness improver, and (d) a lightsafe colorant.Type: GrantFiled: January 17, 1986Date of Patent: July 21, 1987Assignee: Somar CorporationInventors: Ryohei Ebara, Shin-ichi Sano
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Patent number: 4659387Abstract: Nitrocellulose moistened with alcohol, particularly for polyurethane lacquers, characterized in that a lower aliphatic tertiary alcohol is used as moistening agent.Type: GrantFiled: July 30, 1985Date of Patent: April 21, 1987Assignee: Wolff Walsrode AGInventors: Erhard Luhmann, Lutz Hoppe
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Patent number: 4587284Abstract: An enhanced water-absorbency hydrophilic polymer material, suitable for use in for example wound dressings, is prepared by a process in which a water-containing organic hydrogel comprising a gelable polysaccharide and/or protein or polypeptide interspersed with a polymer of a hydrophilic acrylic or methacrylic acid derivative is permeated with a base, the pH of said hydrogel being raised to at least 9 during treatment with said base.Type: GrantFiled: June 14, 1985Date of Patent: May 6, 1986Assignee: Ed. Geistlich Sohne AG fur Chemische IndustrieInventors: Heinz Luissi, Peter Geistlich
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Patent number: 4551491Abstract: A coating composition is described comprising a thermoplastic or thermosetting resin material containing a pigment composition. The pigment composition contains about 5 to about 90% iron oxide encapsulated mica particles. When used in a multi-coat coating process as a basecoat overcoated with a transparent overcoat, an article is produced which not only produces improved pearlescent color effects, but is stable to the elements as well.Type: GrantFiled: December 7, 1984Date of Patent: November 5, 1985Assignee: Inmont CorporationInventor: Sol Panush
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Patent number: 4547542Abstract: This invention relates to unique and novel compositions based on chemically combining a sulfonated polymer and an amine terminated polylactone composition. The resulting amine neutralized sulfonated polymer compositions have a variety of uses including those as diverse as adhesive agents, thermoplastic elastomers, additive uses wherein these materials can be utilized to compatibilize two different polymers which are normally incompatible. These compositions can also be blended with fillers and/or oils when the sulfonated polymer is elastomeric. The materials display thermoplastic character.Type: GrantFiled: December 23, 1983Date of Patent: October 15, 1985Assignee: Exxon Research and Engineering Co.Inventors: Robert D. Lundberg, Warren A. Thaler
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Patent number: 4546133Abstract: Compositions and methods are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.Type: GrantFiled: December 30, 1983Date of Patent: October 8, 1985Assignee: DG Shelter ProductsInventor: Carroll W. Cope
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Patent number: 4526913Abstract: A polymeric coating composition containing nitrocellulose, an acrylate copolymer, a prepolymer from a dimer diisocyanate and a difunctional monomer with an active hydrogen in each group, and a diamine. Solvents may include isopropyl alcohol, ethyl acetate, and toluene. Optionally there may be included a second copolymer from a sulfinamide and formaldehyde and/or a plasticizer. A dried coating from this composition is selectively strippable from a substrate as a cohesive film upon application of a remover solution containing acetone, isopropyl alcohol and water.Type: GrantFiled: January 13, 1984Date of Patent: July 2, 1985Assignee: J. H. Diamond CompanyInventors: David S. Winkler, Jeffrey H. Diamond
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Patent number: 4518726Abstract: A metallic base paint comprising a blend consisting essentially of (A) a silyl group containing vinyl type resin having a backbone substantially comprising a polyvinyl type polymer chain and containing at least one silicon atom attached to a hydrolyzable group at a terminal or in a side chain in its molecule; (B) metal powder; and one or more of the following: (C) acrylic resin; (D) cellulosic compound; (E) reactive silicon compound. This paint can be cured at low temperatures, with setting time, and provides a coated surface of uniform metallic luster.Type: GrantFiled: April 5, 1982Date of Patent: May 21, 1985Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Yasushi Kato, Hisao Furukawa
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Patent number: 4501835Abstract: A novel composition of matter comprising a polyacrylic acid/chitosan complex. This complex is particularly useful as a membrane or filter.Type: GrantFiled: November 9, 1983Date of Patent: February 26, 1985Assignee: Polaroid CorporationInventor: Carl M. Berke
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Patent number: 4487864Abstract: Water-soluble carbohydrate polymers are modified with crosslinked water-swellable organic polymers. The modified carbohydrate polymer compositions are useful as improved water retention aids for tile adhesive compositions, and as additives in spray plasters, wall finishing compounds, tape joint cements, wall paper adhesives, and the like.Type: GrantFiled: April 28, 1983Date of Patent: December 11, 1984Assignee: The Dow Chemical CompanyInventors: Mauricio Bermudez, Alberto L. Torres
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Patent number: 4476257Abstract: A magnetic coating composition used for producing magnetic recording media is disclosed. The composition is comprised of partially oxidized nitrocellulose and magnetic fine powder or magnetic metal fine powder. The composition may also include a synthetic resin binder. The partially oxidized nitrocellulose has a nitrogen content of 8.0 to 12.5% and contains 2.0 to 100 mmol of carboxyl group per 100 g of nitrocellulose. Use of the partically oxidized nitrocellulose gives increased ability to disperse the magnetic powder within the composition and does not adversely effect the adhesion between the composition and the support.Type: GrantFiled: February 24, 1983Date of Patent: October 9, 1984Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Teiichi Ishino, Ikuo Ueda, Rikiya Kai
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Patent number: 4473676Abstract: Polymer compositions which have a low coefficient of friction are disclosed. The polymer compositions comprise a blend of at least 80 percent by weight of a solid or film-forming polymer and at least 0.35 percent by weight of a crosslinked silicone polycarbinol. The described composition retains its low coefficient of friction even after being exposed to hydrocarbon solvents during a cleaning process. The described compositions are particularly useful in forming protective layers for elements, particularly photographic elements.Type: GrantFiled: June 13, 1983Date of Patent: September 25, 1984Assignee: Eastman Kodak CompanyInventor: David J. Steklenski
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Patent number: 4448914Abstract: An aqueous preparations of a gel-like consistency, containing(a) oils in quantities of from 0.03 to 30% by weight,(b) water-soluble or swellable vinyl polymers in quantities of from 0.2 to 10% by weight,(c) water-soluble or swellable polymers based on natural substances in quantities of from 0.01 to 5% by weight,(d) surfactants in quantities of from 0.01 to 2% by weight and optionally(e) inorganic or organic powders in quantities of from 0.5 to 30% by weight.The aqueous preparation is useful as a porosifying agent in the production of porous ceramic bodies.Type: GrantFiled: December 10, 1982Date of Patent: May 15, 1984Assignee: Bayer AktiengesellschaftInventors: Franz Drinkuth, Wulf von Bonin, Dietmar Schapel, Artur Lorenz
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Patent number: 4434259Abstract: Improved base coatings for use on paper substrates to be vacuum metallized consist essentially of an organic solvent solution (e.g. ethyl acetate or ethyl acetate/toluene) containing about 10-30 wt. % of a film-forming coating mixture of (a) about 90-98 wt. % of a vinyl acetate/acrylic acid copolymer (97.5-99/1-2.5%) or a vinyl acetate/monoethyl maleate copolymer (94-97/3-6%) and (b) about 2-10 wt. % of a soluble nitrocellulose resin solids, the resin being soluble in the solvent and having a nitrogen content of about 12 wt. % and a viscosity of from about 4-5 sec. in a 25% solution to about 3-4 sec. in a 20% solution of ethyl alcohol/toluene/ethyl acetate (25/55/20), when measured using the Falling Ball method.Paper products coated with the base coating (about 2-6 lbs./3000 ft..sup.2) are characterized by a balanced combination of alkali removability, water-resistance, and block-resistance. The metallized products are smooth and glossy, and the aluminized product is especially useful for bottle labels.Type: GrantFiled: April 26, 1982Date of Patent: February 28, 1984Assignee: National Starch and Chemical CorporationInventors: Samuel Gold, Arthur A. Tracton, Josephine M. Rosenski
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Patent number: 4426504Abstract: Disclosed is an acrylic curable composition of improved flexibility that cures rapidly at room temperature in the presence of acrylic catalysts. The composition comprises between about 70% and 95% by weight dicyclopentenyl oxyethyl methacrylate and between about 5% and 30% of a linear polyalkylene glycol diacrylate or dimethacrylate cross-linking agent. Excellent flexibility and strength are achieved by use of the named cross-linking agents within the critical range set forth.Type: GrantFiled: June 7, 1982Date of Patent: January 17, 1984Assignee: Battelle Development CorporationInventor: Uma S. Nandi
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Patent number: 4421881Abstract: An improved nitrocellulose lacquer containing small amounts of water-soluble gelatin of molecular weight range of 15,000 to 250,000 and an acrylic copolymer and a novel process for dispersing and incorporating the gelatin are disclosed.Type: GrantFiled: April 19, 1982Date of Patent: December 20, 1983Inventors: Sol Benkendorf, Frank A. Calamito, Carmine M. Zaccaria
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Patent number: 4386175Abstract: This invention relates to a resin composition characterized in that a conventional chemical etching treatment is removed and instead of it a surface of the resin composition is plated with a metallic layer having a strong adhesive force, by means of a surface treatment by only a dry etching. Accordingly, the surface thereof can be directly treated with electroplating. Further, the use of chromic acid as a source of environmental pollution or other conventional addition agents for the surface treatment is completely eliminated.Type: GrantFiled: February 1, 1980Date of Patent: May 31, 1983Assignee: Kokoku Rubber Industrial Company LimitedInventors: Hiroshi Kuramochi, Noriaki Nakajo, Makoto Abekura, Jun Matsumoto
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Patent number: 4384058Abstract: A nail lacquer composition comprising a film-forming agent, a compatible solvent, and an auxiliary resin present in an amount sufficient to increase the wear resistance of the composition when dry and selected from alkyl cyanoacrylates, styrene-acrylonitrile-acrylic terpolymers, or mixtures thereof.Type: GrantFiled: March 23, 1981Date of Patent: May 17, 1983Assignee: Avon Products, Inc.Inventor: Gary Galante
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Patent number: 4339365Abstract: Coating compositions contain pigment dispersants wherein the dispersant is the polymerization product of (i) an alkyl methacrylate having from 3 to 8 carbon atoms in the alkyl group, (ii) a hardening monomer selected from the group consisting of a styrene, methyl methacrylate, ethyl methacrylate and mixtures thereof, (iii) an ethylenically unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid, itaconic acid, crotonic acid, maleic acid, fumaric acid and mixtures thereof or a monomer having a double bond alpha-beta to a carbonyl group and which provides carboxyl functionality when reacted with water, alcohol, amine or anhydride, (iv) a monomer having a double bond alpha-beta to a carbonyl group and at least one hydroxyl group or a monomer which provides such groups when further reacted with an acid or an epoxide, and (v) a compound providing an amine or amine salt functional moiety.Type: GrantFiled: December 12, 1980Date of Patent: July 13, 1982Assignee: PPG Industries, Inc.Inventors: David Z. Becher, Roger M. Christenson, Richard L. Coalson, Percy E. Pierce, Karl F. Schimmel
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Patent number: RE32514Abstract: Polymer compositions which have a low coefficient of friction are disclosed. The polymer compositions comprise a blend of at least 80 percent by weight of a solid of film-forming polymer and at least 0.35 percent by weight of a crosslinked silicone polycarbinol. The described composition retains its low coefficient of friction even after being exposed to hydrocarbon solvents during a cleaning process. The described compositions are particularly useful in forming protective layers for elements, particularly photographic elements.Type: GrantFiled: May 12, 1986Date of Patent: October 6, 1987Assignee: Eastman Kodak CompanyInventor: David J. Steklenski