Ester, Halide Or Nitrile Of Addition Polymer Patents (Class 428/514)
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Patent number: 4367113Abstract: Compatible blends of polymers are disclosed which contain (a) a high density ethylene polymer or an isotactic propylene polymer, (b) a copolymer of ethylene and an alkyl ester of acrylic or methacrylic acid or vinyl acetate, (c) an ionomer resin, and (d) a tackifying resin such as a terpene resin.Type: GrantFiled: June 29, 1981Date of Patent: January 4, 1983Assignee: Gulf Oil CorporationInventors: Khalid A. Karim, Pallavoor R. Lakshmanan, James H. Rea
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Patent number: 4365029Abstract: A coating and adhesive composition which comprises an ethylene-acrylic elastomer, a high molecular weight polyvinyl chloride and a filler, preferably carbon black. The composition is cured with a suitable catalyst, preferably an amine catalyst, to form an abrasion resistant coating, which can also be employed as a repair coating, especially for damaged plastic materials or sheets on a substrate, particularly sheets formed from ethylene-acrylic elastomer. The composition can also be employed as an adhesive or bonding material for such plastic sheets.Type: GrantFiled: February 17, 1981Date of Patent: December 21, 1982Assignee: McDonnell Douglas CorporationInventors: Robert F. Reizer, Albert H. Koivu, Leslie J. Cohen
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Patent number: 4363851Abstract: A metal-deposited paper comprises a paper substrate; a thin continuous coating (a), formed on one surface of the paper substrate, of a film-forming resin having good adhesion to metal, resin coating (a) having a metal film deposited thereon; and a thin continuous coating (b) of polyvinyl alcohol formed on the other surface of the paper substrate; and a process for producing a metal-deposited paper, comprises the following steps; (i) a step of applying a thin continuous coating (a) of a film-forming resin having good adhesion to metal to one surface of a paper substrate; (ii) a step of applying a thin continuous coating (b) of polyvinyl alcohol on the other surface of the paper substrate; and (iii) a step of vacuum-depositing a metal on the surface of the resin coating (a).Type: GrantFiled: December 18, 1980Date of Patent: December 14, 1982Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Noritoshi Mishina, Yutaka Hirota, Satoshi Nakamura
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Patent number: 4363847Abstract: Flexible sheet material suitable for use in the manufacture of gaskets has a basis (85-95% by weight) of fine particles of a non-fibrous charged-layer-silicate mineral such as chlorite and includes a minor proportion (at least 2% but not more than 15% by weight of the material) of organic web-forming fibers, preferably cellulose fibers. The fine particles of the silicate mineral and the web-forming fibers are bound together with a synthetic rubber.Type: GrantFiled: July 1, 1981Date of Patent: December 14, 1982Assignee: AMFU LimitedInventors: Brian Hargreaves, Alan K. Cousens
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Patent number: 4362781Abstract: Pre-moistened wiper comprising a nonwoven web impregnated with a modified guar gum and wet with an aqueous lotion containing borate ions.Type: GrantFiled: September 21, 1981Date of Patent: December 7, 1982Assignee: Scott Paper CompanyInventor: Ralph L. Anderson
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Patent number: 4357384Abstract: A composite structure is disclosed, wherein the structure includes an interior substrate or facing, a layer of rigid insulation, and an exterior facing or cementitious layer, with an adhesive adhering such insulation at least to the interior substrate or facing, with an exterior waterproofing layer of the dried residue of a latex polymer-coating composition being adhered to the exterior of the composite structure or panel. The waterproofing coating layer contains a film-forming polymer which is an acrylic polymer or a vinyl polymer, and has a Mar Elasticity Value of at least 1.The composite structure or insulating structural panel of the present invention may be used as the wall or the roof of a building.Type: GrantFiled: August 5, 1981Date of Patent: November 2, 1982Assignee: Northwood Mills, Ltd.Inventor: F. Bon Jasperson
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Patent number: 4355077Abstract: A photo-hardenable adhesive composition particularly suitable for use in the bonding of glass to other materials, especially plastics, as in the production of safety glass and armored glass laminates and comprising(A) a photopolymerizable ester of an .alpha.,.beta.-ethylenically unsaturated acid and a hydroxylated urethane or urea and having a molecular weight of 500 to 10,000(B) a photoinitiator(C) a substituted or unsubstituted aliphatic or cycloaliphatic N,N-dialkylamino alcohol ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, said alcohol having an alkylene moiety of up to six carbon atoms between hydroxy and the amino functions, and(D) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid in an amount equal to one mole per mole of C, (C) and (D) being capable of reacting together to form a betaine, and preferably(E) at least one further copolymerizable monomer or oligomer and which may comprise an excess of (C) or (D) over equimolar.Type: GrantFiled: June 29, 1981Date of Patent: October 19, 1982Assignee: Deltaglass S.A.Inventors: Pierre Chevreux, Van T. Nguyen, Alain Roman, Daniel Turpin
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Patent number: 4352861Abstract: A photographic paper base comprises a base paper which bears two resin layers arranged one on top of the other on at least one side. The side of the paper which is destined to receive the photographic layer is coated with two resin layers lying one on top of the other, i.e., a first layer lying on the paper and the second layer arranged to contact the photographic layer. Only the second layer contains stabilizers and/or antioxidants, these being preferably in the range 0.03 to 2.0% by weight.Type: GrantFiled: October 8, 1980Date of Patent: October 5, 1982Assignee: Felix Schoeller, Jr. GmbH & Co. KGInventors: Walter von Meer, Uwe Jensen, Reiner Anthonsen
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Patent number: 4348257Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.Type: GrantFiled: June 23, 1980Date of Patent: September 7, 1982Assignee: Hercules IncorporatedInventors: William W. Maslanka, Gavin G. Spence
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Patent number: 4343858Abstract: A pigment-coated paperboard is provided which comprises a paperboard substrate on which there are coextruded a top film of polyethylene terephthalate and an intermediate layer of an acrylic ester copolymer containing from about 1/2 to about 15% pigment particles. Such coated paperboard is particularly suitable for use in containers for food, for book covers, expansion envelopes, business folders and the like. When the pigment is aluminum powder, trays made from the coated paperboard are suitable for use as disposable roller print trays.Type: GrantFiled: July 17, 1981Date of Patent: August 10, 1982Assignee: Champion International CorporationInventor: Kenneth P. Thompson
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Patent number: 4341839Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.Type: GrantFiled: December 17, 1980Date of Patent: July 27, 1982Assignee: Allied Paper IncorporatedInventors: Michael J. Shaw, Robert J. Thiessen
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Patent number: 4341597Abstract: Fibrous material is provided comprising cellulose fibers and mineral wool fibers in a weight ratio within the range from about 3:7 to about 10:1, impregnated with an amount of a water-soluble polyoxyalkylene ether alcohol sufficient to impart dimensional stability thereto and having the formula:R.sub.1 [--O--(C.sub.n.sbsb.1 H.sub.2n.sbsb.1 --O).sub.x --C.sub.n.sbsb.2 H.sub.2n.sbsb.2 --OH].sub.mwherein:R.sub.1 is hydrocarbon or hydrocarbon substituted with secondary hydroxyl groups and free from primary hydroxyl groups and having from one to about twenty-four carbon atoms;m is a number within the range from 1 to about 6;n.sub.1 is a number within the range from about 2 to about 4;n.sub.2 is a number within the range from 3 to 4; and--C.sub.n.sbsb.2 H.sub.2n.sbsb.Type: GrantFiled: May 5, 1980Date of Patent: July 27, 1982Assignee: Rockwool ABInventors: Arne Andersson, Jan Emanuelsson, Ingemar Johansson, Svante Wahlen
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Patent number: 4340707Abstract: What is disclosed are a liquid coating and binding agent, hardenable under the influence of ultraviolet radiation, comprising an oligomer of the formula[(CH.sub.2 .dbd.CHCOO).sub.m ROOCC.sub.2 H.sub.4 ].sub.2 Sor[(CH.sub.2 .dbd.CHCOO).sub.m ROOCC.sub.2 H.sub.4 S].sub.p R',and a method for its preparation by the reaction of hydrogen sulfide or of a polymercaptan of the formulaR'(SH)pwith a polyacrylic acid ester of the formula(CH.sub.2 .dbd.CHCOO).sub.m+1 R.Type: GrantFiled: October 17, 1980Date of Patent: July 20, 1982Assignee: Rohm GmbHInventors: Peter Quis, Theodor Schroth
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Patent number: 4340648Abstract: Single-package coating or ink composition of pH 7 to 12 comprising a reaction product of a binder resin and a scavenging agent which reacts with anions of the initiator used to prepare the binder resin, the binder resin has a Tg of 20.degree. to 70.degree. C., is prepared in an aqueous medium devoid of emulsifiers, and is a polymer of an ethylenically unsaturated acid of 3 to 10 carbon atoms and an acrylic monomer(s) selected from alkyl acrylates and methacrylates containing 4 to 24 carbon atoms, amount of the acid being 0 to 5 parts per 100 parts of the acrylic monomer(s).Type: GrantFiled: June 30, 1980Date of Patent: July 20, 1982Assignee: The B. F. Goodrich CompanyInventors: James A. Conrady, William J. Driscoll
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Patent number: 4339505Abstract: Electrically conductive paper is coated with an insulating coating to provide improved electrographic properties using a solvent-soluble copolymer comprising from 5% to 40% of copolymerized acrylamide or a monoethylenic derivative thereof. The coating is preferably pigmented with calcium carbonate, and the presence of the copolymerized acrylamide allows an increase in the pigment to binder ratio into the range of from 2:1 to 6:1.Type: GrantFiled: February 25, 1980Date of Patent: July 13, 1982Assignee: DeSoto, Inc.Inventors: Frank J. Ragas, Ralph L. Minnis, Gerson E. Beauchamp
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Patent number: 4338227Abstract: Homogeneous blends of at least two non-crosslinked ethylene copolymers having different polar comonomer contents are mildly crosslinked to reduce their melt index. The crosslinked blend can be mixed with tackifier, plasticizer, filler and antioxidant to yield hot melt pressure sensitive adhesive compositions. In the alternative, at least one of the two ethylene copolymers can be crosslinked prior to blending in the hot melt pressure sensitive adhesive composition.Type: GrantFiled: April 24, 1981Date of Patent: July 6, 1982Assignee: E. I. Du Pont de Nemours and CompanyInventor: Edward C. Ballard
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Patent number: 4337297Abstract: Blends of thermoplastic polymers which may be coextruded to form bonding layers in film laminates contain (a) a copolymer of ethylene with a lower alkyl acrylate or methacrylate or vinyl acetate, (b) a chlorinated ethylene polymer and optionally (c) a tackifying resin.Type: GrantFiled: July 16, 1981Date of Patent: June 29, 1982Assignee: Gulf Oil CorporationInventors: Khalid A. Karim, James H. Rea
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Patent number: 4337298Abstract: Compatible blends of polymers are disclosed which contain (a) a low density ethylene polymer, (b) a copolymer of ethylene and an alkyl ester of acrylic or methacrylic acid or vinyl acetate, (c) an ionomer resin, and (4) optionally a tackifying resin such as a glyceryl ester of a rosin acid.Type: GrantFiled: August 5, 1981Date of Patent: June 29, 1982Assignee: Gulf Oil CorporationInventors: Khalid A. Karim, Pallavoor R. Lakshmanan, James H. Rea
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Patent number: 4336345Abstract: Polymers of esters of methacrylic acid having an average chain length of about 6 to about 50 mers are prepared by an anionic polymerization reaction, carried out in the presence of a chain-regulating alcohol and a catalytic amount of an alkoxide anion, in which control of the molecular weight and molecular weight distribution of the polymer are achieved by regulating the ratio of the total quantity of alcohol employed to the total monomer charge. These polymers, their hydrolysis products, and their derivatives having condensation-crosslinkable functionality have a wide variety of applications, including use as components in films, coatings, fibers, impregnants, adhesives, printing inks, and binders, and use as modifiers, plasticizers, melt flow improvers, and leveling agents.Type: GrantFiled: May 12, 1980Date of Patent: June 22, 1982Assignee: Rohm and Haas CompanyInventors: Sheldon N. Lewis, Richard A. Haggard
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Patent number: 4336297Abstract: An electrical laminate comprising layers of a polyester resin-impregnated fibrous cellulosic substrate is disclosed. The substrate is preimpregnated with a nitrogen-containing composition having (a) an N-methylol or N-lower alkoxymethyl group attached to said nitrogen atom, and (b) an unsaturated group capable of copolymerizing with a cross-linking monomer present in the polyester resin.Type: GrantFiled: April 23, 1980Date of Patent: June 22, 1982Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Yasuo Fushiki, Masaharu Abe, Masakazu Uekita
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Patent number: 4325856Abstract: Aqueous copolymer latexes comprising colloidally dispersed, substantially spheroidal copolymer particles having a predominantly hydrophobic core portion and having a relatively hydrophilic polymeric portion which is preferentially oriented toward the outer surface thereof (e.g., a relatively hydrophilic shell portion) are prepared by (a) first emulsion polymerizing an initial monomer charge to form a first aqueous latex of a substantially linear, relatively hydrophilic polymer and (b) thereafter emulsion polymerizing a major proportion (e.g., from about 50 to about 95 parts by weight) of a second (and relatively more hydrophobic) monomer charge in the presence of a minor proportion (e.g., from about 5 to about 50 parts by weight on a polymer solids basis) of said first, relatively hydrophilic polymer latex.Type: GrantFiled: January 2, 1980Date of Patent: April 20, 1982Assignee: The Dow Chemical CompanyInventors: Tadayoshi Ishikawa, Do I. Lee
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Patent number: 4324832Abstract: What is disclosed is a method for making a synthetic veneer, which method comprises impregnating a fibrous web structure with an aqueous dispersion of a finely divided synthetic resin, said dispersion further containing a water-soluble aminoplast resin dissolved therein, and then drying the impregnated web structure by heating it, said synthetic resin being thermoplastically deformable and in a non-crosslinked condition at the beginning of the drying step, but comprising a plurality of groups capable of external crosslinking and which do crosslink during the drying step.Type: GrantFiled: January 18, 1980Date of Patent: April 13, 1982Assignee: Rohm GmbHInventors: Helmut Moroff, Hanns Boessler, Hans Hauser, Gerhard Ladisich
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Patent number: 4323602Abstract: A combined water repellent and preservative for wood prepared in a concentrate for mixing with water and utilizing 3-iodo-2-propynyl butyl carbamate.Type: GrantFiled: May 14, 1980Date of Patent: April 6, 1982Assignee: Roberts Consolidated Industries, Inc.Inventor: Thomas G. Parker
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Patent number: 4321309Abstract: A heat-sensitive recording material having a heat-sensitive layer composed mainly of a leuco dye and a phenolic compound used as a developer, said heat-sensitive layer containing as a binding agent any one or combinations of polyvinyl alcohol, oxidized starch and etherized starch, and methyl cellulose in a ratio by weight between 98:2 and 90:10.Type: GrantFiled: May 27, 1980Date of Patent: March 23, 1982Assignee: Sanyo-Kokusaku Pulp Co., Ltd.Inventors: Hisashi Mino, Masao Matsukawa, Minematsu Nagashima
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Patent number: 4319811Abstract: The invention relates to a radiation curable coating which provides superior abrasion and chemical resistance and excellent adhesion properties. The coating is produced by radiation curing. A first monomer selected from the group consisting of triacrylates and tetracrylate mixed with a second monomer having an N-vinyl imido group, preferably an N-vinyl lactam, such as vinyl pyrrolidone or vinyl caprolactam. The monomer mixture is substantially oligomer-free and if the radiation is ultraviolet light, a photoinitiator, preferably p-phenoxydichloro acetophenone or dimethoxyphenyl acetophenone, is included in the mixture.Type: GrantFiled: October 1, 1979Date of Patent: March 16, 1982Assignee: GAF CorporationInventors: Shu-Tung Tu, Donald H. Lorenz
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Patent number: 4316943Abstract: Electroductive article comprising a coating composition of copolymers containing from 70 percent to 85 percent by weight diallyldimethylammonium chloride and at least 15 percent but less than 30 percent by weight N-methylolacrylamide and optional comonomers is disclosed. These electroconductive polymers are coated onto a substrate and become water-insensitive thereafter.Type: GrantFiled: December 12, 1980Date of Patent: February 23, 1982Assignee: Calgon CorporationInventors: Gloria D. Sinkovitz, Kenneth W. Dixon
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Patent number: 4315790Abstract: Material for decorating textile fabrics under the action of heat and pressure comprises a flexible substrate having thereon a transferable layer which comprises a dye or pigment, a film-forming polymer, a crosslinking agent capable on curing of rendering the film-forming polymer insoluble and a thermally activatable catalyst for promoting the crosslinking reaction, the catalyst comprising the salt of one or more strong acid groups with an organic base and a salt of one or more weak acid groups with an organic base.Type: GrantFiled: March 7, 1980Date of Patent: February 16, 1982Assignee: Decor Innovations LimitedInventors: Ian D. Rattee, Edward J. Lewis
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Patent number: 4314002Abstract: This invention relates to insulating laminates which consists with several sheets of reinforcements (1) inpregnated with curable resin and layers (2) of cured resin located between each reinforcement. Metal clad laminates is also disclosed which is consisting with reinforcement (1), layers (2) of cured resin and metal foil (5) to be placed on the laminates. Each reinforcements (1) are substantially isolated by the resin layers (2).Type: GrantFiled: January 29, 1980Date of Patent: February 2, 1982Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masayuki Oizumi, Masana Goto, Minoru Ishiki, Shoji Uozumi
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Patent number: 4312914Abstract: The subject of the invention is a process for coating porous webs, wherein an aqueous, spreadable composition which has a pH value of 3 to 6 and contains at least (A) an emulsion copolymer comprising (a) an alkyl acrylate, (b) acrylonitrile, (c) an ethylenically unsaturated aliphatic carboxylic acid and/or the unsubstituted or methylated N-methylolamide of these carboxylic acids and (d) optionally another copolymerizable unsaturated compound which is free from acid groups, (B) an organic solvent which is insoluble to at most slightly soluble in water and has a boiling point between 50.degree. and 160.degree. C. and a molecular weight of 50 to 160, and (C), if desired, a polyfunctional crosslinking aminoplast precondensate or epoxide, is applied to the web, dried and then cured, the web also being impregnated if desired, either before or after coating, but prior to curing, with an agent for imparting hydrophobic and/or oleophobic properties, and dried. The coatings are stable to drycleaning.Type: GrantFiled: March 24, 1980Date of Patent: January 26, 1982Assignee: Ciba-Geigy CorporationInventor: Christian Guth
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Patent number: 4311766Abstract: Disclosed is a release coating provided by a coating composition having an acrylic functional component which has been polymerized by electron beam radiation. In a preferred embodiment the coating composition does not contain polysiloxane. In another preferred embodiment some of the acrylic functional component has one acrylic group per molecule and some has three or more acrylic groups per molecule before polymerization.Type: GrantFiled: October 2, 1980Date of Patent: January 19, 1982Assignee: Scott Paper CompanyInventor: John A. Mattor
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Patent number: 4310137Abstract: A surface mount for removably adhesively attaching an object to a supporting surface, the mount being separable for the ready removal of the object held with a readily separable outward portion of the mount and the remainder of the mount being subsequently carefully removed from the supporting surface free of the held object.Type: GrantFiled: September 8, 1980Date of Patent: January 12, 1982Inventor: Bruce J. Frye
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Patent number: 4307148Abstract: A process for improving the flame-retardant properties of cellulose containing fibrous materials in the absence of halogen compounds which comprises treating said fibrous materials with an effective amount of a colloidal aqueous dispersion of an alkali metal polyantimonate containing a mole ratio of alkali metal to antimony in the dispersion of at least about 0.3:1, and drying said materials is described.Type: GrantFiled: August 20, 1979Date of Patent: December 22, 1981Assignee: The Harshaw Chemical CompanyInventor: Destin A. LeBlanc
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Patent number: 4307155Abstract: A wood-polymer composite is prepared by impregnating a wood substrate with a liquid dicyclopentenyl acrylate or methacrylate monomer of the formula ##STR1## wherein R is hydrogen or methyl, R' and each R" are independently hydrogen, chloride or bromide, n is 0 or 1, and the dashed line is an optional chemical bond with the provisoes that when the dashed line is present, n is 0, and when the dashed line is absent, n is 1, and curing the resulting monomer-impregnated wood substrate by either heating same in the presence of a catalytic amount of a thermal initiator, such as a peroxide, or by exposing same to high-energy radiation, such as .gamma.-rays. The wood-polymer composite is relatively hard and shows good resistance to hydrocarbon attack.Type: GrantFiled: September 11, 1980Date of Patent: December 22, 1981Assignee: The Dow Chemical Co.Inventors: William E. Broxterman, Frederick L. Brown
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Patent number: 4307216Abstract: An adhesive composition which comprises an .alpha.-cyanoacrylate compound with a certain ester ether compound and, preferably, a polyhydroxybenzoic acid compound. The composition is enhanced in heat shock resistance and improved in initial adhesion rate.Type: GrantFiled: January 14, 1980Date of Patent: December 22, 1981Assignee: Sumitomo Chemical Company, LimitedInventors: Yoshihisa Shiraishi, Kazuhiro Nakagawa, Chiaki Nakata, Koiti Ohasi
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Patent number: 4306996Abstract: An electroconductive polymer composition containing an electroconductive polymer and an agent that imparts improved tack properties to paper coated with the composition.Type: GrantFiled: May 5, 1980Date of Patent: December 22, 1981Assignee: Calgon CorporationInventor: Robert H. Windhager
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Patent number: 4304820Abstract: Impregnated wood containing a polymer which is produced in the wood from the polymerization of a monomer and/or prepolymer having aliphatic multiple bonds and crosslinked organopolysiloxanes.The polymer impregnated wood is prepared by impregnating the wood with a mixture containing a monomer and/or prepolymer containing aliphatic multiple bonds which is capable of free radical polymerization and a crosslinkable organopolysiloxane and thereafter the monomer and/or prepolymer is polymerized and the organopolysiloxane is crosslinked in the wood.Type: GrantFiled: January 28, 1980Date of Patent: December 8, 1981Assignee: Wacker-Chemie GmbHInventors: Bernward Deubzer, Erich Brunner
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Patent number: 4303720Abstract: An improved dielectric printing paper and process for making the same, characterized by excellent resolution, contrast, and feel. The paper incorporates an inorganic salt such as magnesium chloride as a conductivity-providing ingredient. The dielectric coating is formed with a high loading of inorganic fillers and is applied by a dry process to form a discontinuous dielectric coating on the conductive paper substrate.Type: GrantFiled: July 10, 1980Date of Patent: December 1, 1981Assignee: Ludlow CorporationInventor: Philip J. Clough
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Patent number: 4300969Abstract: A laminate for use in cartons for sterilized milk, fruit juices etc. consists of a cardboard web, a layer of heat-sealable thermoplastic material, preferably polyethylene, on the side of the laminate which is to form the outer sides of the cartons, and three layers of plastic material on the other side. Of these three layers, the middle layer consists of polyvinylidene chloride and the two others both consist of a plastic material of the same type as on the outer side. The innermost of these layers may be colored.Type: GrantFiled: February 1, 1980Date of Patent: November 17, 1981Assignee: Ex-Cell-O CorporationInventor: Tom Frydendal
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Patent number: 4301210Abstract: High quality cast-coated paper is obtained with high productivity by applying an aqueous coating composition containing a coating pigment and a binder to the surface of base paper by means of a blade coater to form an undercoating layer, the application rate being from 5 to 25 g/m.sup.2 on dry basis per side; then applying to said undercoating layer an aqueous coating composition containing a coating pigment and a polymer latex having a glass transition point of 38.degree. C. or higher to form an overcoating layer, drying said overcoating layer at a temperature below the glass transition point of the latex in said overcoating layer; and subjecting it to mirror finish treatment at a temperature higher than said glass transition point.Type: GrantFiled: July 17, 1980Date of Patent: November 17, 1981Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Nobu Yasuda, Masafumi Masuda, Tomoichi Morita
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Patent number: 4296947Abstract: A process is provided for producing a pressure-sensitive carbonless transfer sheet comprising preparing a solution of a first chromogenic material, the solution of the first chromogenic material including at least one chromogenic compound dissolved in a carrier oil, and the first chromogenic material being reactive with a second chromogenic material in the presence of the carrier oil to form a color. The solution of the first chromogenic material is mixed with a liquid radiation curable substance to form a coating composition, the liquid radiation curable substance being curable to a frangible resin and compatible with the color-forming capabilities of said first chromogenic material. A film forming material is applied to a substrate, the film forming material being settable to form a barrier layer which substantially prevents penetration of the substrate by the coating composition upon application of the coating composition to the substrate.Type: GrantFiled: February 2, 1979Date of Patent: October 27, 1981Assignee: The Mead CorporationInventors: Sydney M. Spatz, Robert C. Hydell, Gerald T. Davis
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Patent number: 4296171Abstract: A transfer sheet suitable for electrophotographic pressure fixing, which comprises a paper support and a thin layer of resin formed by coating, thereon as transfer-acceptable layer said resin being obtained by neutralizing carboxyl radical of a copolymer comprising methyl methacrylate, alkyl acrylate and/or alkyl methacrylate and unsaturated carboxylic acid as constitution units with ammonia or some volatile amine.Type: GrantFiled: September 6, 1979Date of Patent: October 20, 1981Assignee: Ricoh Co., Ltd.Inventor: Mitsuru Imai
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Patent number: 4295910Abstract: A lamination process is provided for the lamination of a vinyl film to a cellulosic substrate, such as a wood product, e.g., particleboard, wherein grain swelling of the substrate is avoided. The process involves coating the wood product substrate with an organic polyisocyanate having at least two active isocyanate groups per molecule as a primer coat, and thereafter applying a vinyl acetate-ethylene copolymer emulsion adhesive to the primed substrate to form an interlaminate adhesive layer. A vinyl polymeric film is then applied to the adhesive-coated substrate to form a permanently bonded laminate of the substrate and the film. The lamination process of the present invention is particularly suitable for use in a continuous hot-line heat reactivated laminating procedure.Type: GrantFiled: April 25, 1980Date of Patent: October 20, 1981Assignee: Champion International CorporationInventors: James Cooley, Ozzie Fogle
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Patent number: 4294873Abstract: A process for the manufacture of paper having a high dry strength and a low wet strength, by treating the surface of the paper with an aqueous solution of an alkali metal and/or alkaline earth metal salt of a polymer of (a) from 91 to 100% by weight of acrylic acid and/or methacrylic acid and (b) from 0 to 9% by weight of acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, vinyl acetate, maleic anhydride, diisobutylene, an ester of acrylic acid and/or an ester of methacrylic acid, which has a viscosity of from 5 to 100 mPas in 2% strength aqueous solution at 20.degree. C., and drying the impregnated paper. The polymer is generally employed in an amount of from 1 to 4% by weight, based on dry paper, and increases the dry strength of the paper without substantially increasing the wet strength.Type: GrantFiled: January 3, 1980Date of Patent: October 13, 1981Assignee: BASF AktiengesellschaftInventors: Juergen Hartmann, Joachim Stedefeder, Walter Denzinger, Sigberg Pfohl
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Patent number: 4294704Abstract: Aqueous latex base binder of a synthetic polymer for preparing aqueous compositions for coating paper and board for printing, having improved wet and dry tear strength. The content in the latex of hydrosoluble compounds dissolved in the aqueous phase is less than 0.5% by weight in relation to the polymer.Type: GrantFiled: March 31, 1980Date of Patent: October 13, 1981Assignee: Rhone-Poulenc IndustriesInventors: Jean-Claude Daniel, Jacques Grossoleil, Robert Roullet
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Patent number: 4293360Abstract: Disclosed is a coated sheet material comprising a release medium having thereon a gluable coating for use in making a decorative heat-and-pressure consolidated laminate. The gluable coating is transferred during the consolidation step from the release medium to the back side of the laminate, and the laminate can then be glued to a reinforcing substrate with conventional glues and without sanding the back of the laminate. The transferable gluable coating comprises a linear copolymer of (A) maleic anhydride or maleic acid or maleic acid salt and (B) ethylene or a vinyl monomer having a side chain of an aliphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.Type: GrantFiled: November 16, 1978Date of Patent: October 6, 1981Assignee: Scott Paper CompanyInventors: Fredrick A. Loft, John O. H. Peterson
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Patent number: 4291101Abstract: Wood fibrous materials which are impregnated with one or more compounds selected from a group consisting of polyoxyalkylene glycol monoacrylates and polyoxyalkylene glycol, monomethacrylates, followed by curing the impregnated impregnant, are splendid in the dimensional stability and become good in other properties thereof.Type: GrantFiled: August 6, 1979Date of Patent: September 22, 1981Assignee: Nippon Oil and Fats Co., Ltd.Inventors: Yoshiharu Tanizaki, Kenichiro Minagawa, Shinichi Akimoto, Kuninori Horioka
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Patent number: 4288497Abstract: A silicone-coated article having releasability imparted thereto by the coating of a silicone, wherein that surface of said article on which to coat the silicone is composed of a resin consisting of a polar group-containing olefinic resin comprising (a) 55 to 99% by weight of a unit derived from an olefin and (b) 1 to 45% by weight of a unit derived from a radical-polymerizable monomer containing a polar group selected from the class consisting of ##STR1## in which R.sub.1 represents a hydrogen atom, a metal capable of forming a salt with the carboxyl group, or a monovalent hydrocarbon group, and R.sub.2 represents a monovalent hydrocarbon group; and a method for the production thereof.Type: GrantFiled: January 14, 1980Date of Patent: September 8, 1981Assignee: Mitsui Petrochemical Industries Ltd.Inventors: Mutsuhiro Tanaka, Masatoshi Kashiwagi
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Patent number: 4287264Abstract: A color forming heat sensitive coating composition comprising a color forming amount of a finely divided homogenous basic 3,3-bisarylphthalane derivative and a color developing amount of a finely divided solid phenyl derivative which at thermal printing temperature is at least partly fluidizable and capable of a color forming reaction with said 3,3-bisarylphthalane compound dispersed in a polyvinyl alcohol carrier is disclosed wherein the improvement comprises the addition of an anti-sticking amount of a functional filler which may be a di(lower alkyl)dithiocarbamate or lower alkylxanthate of lead, zinc, cadmium and alkaline earth metals or a tetra (lower alkyl)thiuram disulfide or a di(lower alkyl) xanthogen.Type: GrantFiled: March 7, 1980Date of Patent: September 1, 1981Assignee: Labelon CorporationInventor: Barry L. Marginean
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Patent number: 4285989Abstract: An electrographic recording material comprising a conductive paper support coated with an electrically insulating layer comprising an intimate blend of a polymeric binder and up to 500 parts of an inert finely divided pigment per 100 parts by weight of polymeric binder. The binder comprises poly(vinyl acetal) and an alkoxymethyl polyaminotriazine. The electrographic recording material exhibits improved resistance to curl when it is exposed to variable humidity conditions.Type: GrantFiled: May 11, 1979Date of Patent: August 25, 1981Assignee: Monsanto CompanyInventors: Walter J. Wilkinson, Irving Serlin
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Patent number: 4284546Abstract: A novel high-solids coating substance for coating paper and the like is provided. The coatings are in the form of solutions having pigment concentrations greater than 70%. The coatings provide high gloss and contain particles of calcium carbonate as substantially the only pigment.Type: GrantFiled: October 29, 1979Date of Patent: August 18, 1981Assignee: Omya S. A.Inventors: Pierre Delfosse, Dieter Strauch