Addition Polymer Of Hydrocarbon(s) Only Patents (Class 428/512)
  • Patent number: 4759816
    Abstract: A strippable film for adhesive coating and laminating comprising:a base paper, andan extrusion coated thermoplastic resin layer, wherein said film has the property that upon coating an adhesive onto said resin layer and assembling the adhesive coated strippable film with a base member, said base paper can be stripped from said resin layer and said resin layer can be subsequently stripped from said adhesive coating.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: July 26, 1988
    Assignee: Schoeller Technical Papers, Inc.
    Inventors: Klaus B. Kasper, David R. Williams
  • Patent number: 4752522
    Abstract: An electrostatic recording material comprising a substrate treated for low electric resistance and a dielectric layer formed on the substrate and composed of a composition comprising an insulating resin having a volume specific resistance of at least 10.sup.12 .OMEGA.cm and a powder of an acrylonitrile-type polymer having a copolymerized acrylonitrile content of at least 95% by weight and containing substantially no ionic groups, said powder having a volume average particle size of from 1.5 to 4 .mu.m and a content of particles having a size exceeding 8 .mu.m as measured by a particle size distribution measuring apparatus, being at most 0.02% by number.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: June 21, 1988
    Assignee: Mitsubishi Rayon Company Limited
    Inventors: Teruhiko Sugimori, Fumio Suzuki, Naoyuki Fukabori, Hideaki Habara
  • Patent number: 4728572
    Abstract: Hot melt adhesive compositions prepared from styrene-isoprene-styrene block copolymers, a low softening point highly aliphatic resin and a metallic salt of a fatty acid exhibit a superior balance of properties in that they adhere well to a variety of substrates yet can be readily and cleanly removed when desired.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: March 1, 1988
    Assignee: National Starch and Chemical Corp.
    Inventor: Irwin J. Davis
  • Patent number: 4725495
    Abstract: Wax-base or emollient-base cosmetic compositions may be provided as samples on paper carrying sheets by providing the paper with materials that prevent absorption of oleic materials and providing the cosmetic compositions with a lower sheet that is oleophobic. A binder layer of an oleophilic wax or polymer is used between said paper and the cosmetic composition.
    Type: Grant
    Filed: October 30, 1986
    Date of Patent: February 16, 1988
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James E. Garbe, Keith E. Relyea
  • Patent number: 4722854
    Abstract: 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: Grant
    Filed: February 11, 1987
    Date of Patent: February 2, 1988
    Assignee: DG Shelter Products
    Inventor: Carroll W. Cope
  • Patent number: 4711801
    Abstract: A blank for use with an apparatus for continuously and sequentially forming cylindrical bodies with the blanks which are each made from a fiber board material which is rectangular in shape and has a leading and trailing edge, both of which are coated with a heat activatable adhesive so that when the blank is heated and immediately passed to a formal mandrel to be formed into a cylindrical body, the heat activated adhesive will secure the blank in a cylindrical form as well as seal the leading and trailing edges.
    Type: Grant
    Filed: November 29, 1985
    Date of Patent: December 8, 1987
    Assignee: Steeltin Can Corporation
    Inventor: Leo Kadunce
  • Patent number: 4707414
    Abstract: A rigid packaging material having a coating of heat-sealable, anti-static plastic. A fiberboard sheet substrate is coated with a lamina of polyethylene made electrostatic-free by the addition of an organic anti-static compound. When skin-packaged with a film of heat sealable, anti-static plastic material, a static-sensitive item is completely enclosed by a static-free barrier package.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: November 17, 1987
    Assignee: General Dynamics, Pomona Division
    Inventors: Stuart G. Long, Michael J. Maciocia
  • Patent number: 4701360
    Abstract: The present invention relates to an improved container for citrus juices and other liquids. The container utilizes a paperboard barrier laminate for the containment of essential oils and the prevention of losses of Vitamin C. Also disclosed is a process of making the laminate. The laminate makes use of a layer of a heat-sealable ethylene vinyl alcohol copolymer to enhance the barrier properties of the laminate.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: October 20, 1987
    Assignee: International Paper Company
    Inventors: Charles E. Gibbons, Allan A. Whillock
  • Patent number: 4680234
    Abstract: A flexible weather resistant film comprising a weather resistant layer of a blend of a vinyl chloride polymer and chlorinated polyethylene and a second layer comprising a normally solid thermoplastic adhesive. Improved performance is obtained when the first layer additionally comprises an interpolymer of ethylene and at least one carboxylic acid or ester thereof containing ethylenic unsaturation.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: July 14, 1987
    Assignee: The Dow Chemical Company
    Inventor: Robert H. Kelch
  • Patent number: 4605612
    Abstract: A support for photographic paper is described, which comprises a sheet of paper coated with a composition comprising an unsaturated bond-containing electron beam-polymerizable organic compound and an inorganic white pigment that is subjected to electron beam irradiation for curing, wherein said unsaturated bond-containing organic compound (A) and said inorganic white pigment (B) are present in a weight ratio (A)/(B) of from 3/1 to 1/9, and said unsaturated bond-containing organic compound comprises an unsaturated organic compound (C) containing two carbon-to-carbon double bonds per molecule and an unsaturated organic compound (D) containing three carbon-to-carbon double bonds per molecule, and the weight ratio (C)/(D) is from 49/51 to 1/99.
    Type: Grant
    Filed: February 27, 1985
    Date of Patent: August 12, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuzi Asao, Takashi Takayanagi
  • Patent number: 4582785
    Abstract: Polyolefin coated photographic base papers are stabilized by a polymeric hindered amine (Chimassorb 944) having a mean molecular weight above 2500. The stabilizer is highly effective and overcomes a diminution of opacity noted with the use of phosphonate esters of the prior art.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: April 15, 1986
    Assignee: The Wiggins Teape Group Limited
    Inventors: Antony I. Woodward, Garry Barnes, George Tyler
  • Patent number: 4572855
    Abstract: The invention relates to a label tape of successive individual labels which are to be appended to articles for sale and which are separated from one another by separating cuts extending transversely with respect to the tape length direction, said tape consisting of a carrier layer formed of polyethylene film and of a printable paper layer firmly bonded to said film.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: February 25, 1986
    Assignee: Esselte Pendaflex Corporation
    Inventors: Peter Kalus, Gerhard Wippern
  • Patent number: 4567098
    Abstract: Metallized paper whose metal layer has been deposited by evaporation in vacuo onto a cast-coated paper. The cast coating contains mineral pigments, latex binders and conventional additives, and at least 5 parts by weight of the pigment are a synthetic polymer pigment. The coating material has a pH value >7 and during the process of fabricating the metallized paper it is deposited in such an amount that, after the drying, 10-30 g/m.sup.2 of cast coating are present. The coating material deposited onto a paper web is dried until its moisture content is 5-15% and the web is then pressed with the coated paper surface against a drum with a highly polished surface at a temperature of 100.degree.-160.degree. C. by means of a roll with a nip >1000 N/cm.
    Type: Grant
    Filed: July 6, 1983
    Date of Patent: January 28, 1986
    Assignee: Zanders Feinpaiere AG
    Inventors: Franz-Josef Becker, Erich Hubner, Walter Lammerich
  • Patent number: 4557971
    Abstract: A multiple layered laminated tape has a permeable layer on its face. The permeable layer provides a suitable surface for printing or marking. The permeable layer is laminated to an upper strength layer made of a film of pre-stretched polypropylene or the like. The upper strength layer is laminated to a weak carrier layer of low bond Kraft paper. The carrier layer has a layer of water soluble adhesive which is used to secure the tape to a cardboard carton or the like. The water soluble adhesive is also suitable for sticking to the permeable layer face of the tape so that the tape may be stuck to itself. Labels, stamps or the like having a water soluble adhesive may also be glued to the face of the tape.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: December 10, 1985
    Inventor: Robert Williams
  • Patent number: 4537815
    Abstract: The drawings and description disclose a heat sealable container for edible oils and other types of oils, and a blank for constructing same, having a laminated wall construction of suitable oil resistant barriers or layers which are compatible with one another insofar as bonding and sealing are concerned. Such wall construction includes central layers of aluminum foil and fluorochemically treated paperboard secured to one another by a suitable adhesive, an ionomer layer, such as Surlyn, formed on each outer paperboard and foil surface, and a layer of thermoplastic material, such as polyethylene, formed on each outer Surlyn surface. As an alternate embodiment in some applications, the Surlyn layer may be omitted from the foil surface, and the outer layer of thermoplastic material may be applied directly to the foil surface.
    Type: Grant
    Filed: March 9, 1984
    Date of Patent: August 27, 1985
    Assignee: Ex-Cell-O Corporation
    Inventors: Daniel J. Wise, Donna M. Woodhall
  • Patent number: 4517250
    Abstract: This invention relates to emulsion type adhesive compositions which include a metal neutralized copolymer, wherein the neutralized sulfonated copolymer has about 5 to about 250 meq. of neutralized sulfonate groups per 100 grams of the neutralized sulfonated copolymer, and less than about 200 parts by weight of a hydrocarbon resin of a petroleum or coal tar distillate, having about 5 to 6 carbon atoms, the hydrocarbon resin being composed of aliphatic dienes and monoolefins per 100 parts by weight of the neutralized sulfonated copolymer.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: May 14, 1985
    Assignee: Exxon Research and Engineering Co.
    Inventors: Pawan K. Agarwal, Robert D. Lundberg, Joseph Wagensomer, Frank C. Jagisch
  • Patent number: 4489112
    Abstract: The drawings and description disclose a heat sealable container for edible oils and other types of oils, and a blank for constructing same, having a laminated wall construction of suitable oil resistant barriers or layers which are compatible with one another insofar as bonding and sealing are concerned. Such wall construction includes central layers of aluminum foil and fluorochemically treated paperboard secured to one another by a suitable adhesive, an ionomer layer, such as Surlyn, formed on each outer paperboard and foil surface, and a layer of thermoplastic material, such as polyethylene, formed on each outer Surlyn surface.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: December 18, 1984
    Assignee: Ex-Cell-O Corporation
    Inventors: Daniel J. Wise, Donna M. Woodhall
  • Patent number: 4481262
    Abstract: Composite structures comprising one or more substrates and an adhesive blend adhered thereto. The blend is strongly adhesive to various substrates and especially to various polar substrates. The blend comprises a blend of a graft copolymer of a linear low density polyethylene backbone grafted with at least one grafting monomer which is one or more polymerizable ethylenically unsaturated carboxylic acids or anhydrides thereof, blended with a polyolefin blending resin. The disclosure also includes methods of adhering the blend to one or more substrates.
    Type: Grant
    Filed: February 1, 1984
    Date of Patent: November 6, 1984
    Assignee: Chemplex Company
    Inventors: Mitsuzo Shida, Robert Zeitlin, John Machonis, Jr., Ashok M. Adur
  • Patent number: 4477532
    Abstract: Composite structures comprising one or more substrates and an adhesive blend comprising blends of a non-elastomeric graft copolymer of a non-polar ethylene homopolymer or copolymer backbone grafted with at least one grafting monomer comprising one or more of polymerizable ethylenically unsaturated carboxylic acids or the anhydrides of such acids blended with an elastomer-free blending resin that is a mixture of one or more linear low density polyethylenes and one or more polypropylenes.
    Type: Grant
    Filed: May 12, 1983
    Date of Patent: October 16, 1984
    Assignee: Chemplex Company
    Inventors: Seymour Schmukler, John Machonis, Jr., Mitsuzo Shida
  • Patent number: 4455348
    Abstract: An insulative coating composition for providing water-repellancy to and protecting communication wire comprises an admixture of an anhydride copolymer, a flexibilizing copolymer, a suitable solvent system, a hydrophobic, soluble, compatible fluoroaliphatic radical-containing composition and optionally, a mercaptan, and optionally, an antioxidant. Articles coated with the insulative composition are disclosed.
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: June 19, 1984
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Richard J. Pokorny
  • Patent number: 4427744
    Abstract: A heat-activated pressure-sensitive adhesive which comprises an aqueous emulsion of finely divided solids comprising a rubber polymer, a resin and a plasticizer, which optionally contains urea, a urea-compound and/or a polyhydroxy compound in the aqueous phase. Substrates such as plastic film, metal foil and cigarette paper may be effectively bonded.
    Type: Grant
    Filed: August 19, 1982
    Date of Patent: January 24, 1984
    Assignee: H. B. Fuller Company
    Inventor: Robert M. Hume, III
  • Patent number: 4418117
    Abstract: An electrostatic master for lithographic printing characterized by a base, a barrier coat thereon, and a photoconductive layer. The barrier coat includes a hydrophobic thermoplastic film-forming resin having labile hydrogen-containing functional groups and a conductive agent. The conductive agent is a quaternary ammonium salt. The salts have only a minimal effect on water resistance and result in excellent reduction in the dielectric characteristics of the barrier coat.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: November 29, 1983
    Assignee: Allied Paper Incorporated
    Inventor: Michael J. Shaw
  • Patent number: 4390597
    Abstract: Interpolymer latex and process for the preparation thereof, in which the latexes are aqueous dispersions of particles having a diameter which is essentially between 0.1 and 1 .mu.m of an interpolymer comprising a copolymer A of butadiene, styrene and at least one ethylenic unsaturated carboxylic acid and a polymer B of bis(2-chloroethyl)vinylphosphonate which is at least partly grafted onto copolymer A. They can be used in particular as binders, more particularly in the paper coating industry and in the textile industry.
    Type: Grant
    Filed: November 12, 1981
    Date of Patent: June 28, 1983
    Assignee: Rhone-Poulenc Industries
    Inventor: Bernard Chauvel
  • Patent number: 4374190
    Abstract: A non-crinkling, wrinkling or curling erasable diazo-type intermediate material comprising a flexible light transmitting substrate, a flexible barrier layer on the substrate comprising an aliphatic organic alcohol insoluble elastomeric or thermoplastic material coated on the substrate in a non-aqueous medium and dried, and a photosensitive layer overlaying the barrier layer comprising an aliphatic alcohol soluble polymer resin binder, a diazo dye and an azo coupler, the photosensitive composition being dissolved in a non-aqueous solvent, coated and dried.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: February 15, 1983
    Assignee: AM International, Inc.
    Inventor: John Y. Hur
  • Patent number: 4370389
    Abstract: A coated paper having a high paper gloss and a surface strength sufficient enough for practical purposes is obtained by coating a base paper sheet with an aqueous coating composition comprising a paper-coating pigment and a latex of styrene-butadiene copolymer or modified styrene-butadiene copolymer, the styrene block of which includes 8 to 40 monomeric units, drying the wet coated sheet, and subjecting the coated side to hot calendering treatment.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: January 25, 1983
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Toshimasa Ogura, Yasunosuke Sakai
  • Patent number: 4360568
    Abstract: The holding power of hot melt adhesives is increased by the addition of poly(alpha-methylstyrene) and polyphenylene oxide.
    Type: Grant
    Filed: July 21, 1981
    Date of Patent: November 23, 1982
    Assignee: Phillips Petroleum Company
    Inventor: George M. Allison, III
  • Patent number: 4352861
    Abstract: 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: Grant
    Filed: October 8, 1980
    Date of Patent: October 5, 1982
    Assignee: Felix Schoeller, Jr. GmbH & Co. KG
    Inventors: Walter von Meer, Uwe Jensen, Reiner Anthonsen
  • Patent number: 4337297
    Abstract: 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: Grant
    Filed: July 16, 1981
    Date of Patent: June 29, 1982
    Assignee: Gulf Oil Corporation
    Inventors: Khalid A. Karim, James H. Rea
  • Patent number: 4317754
    Abstract: A curable resin composition is disclosed for use in the manufacture of laminates applied to electronics equipment. The composition essentially comprises a resol type phenolic resin which is obtained from the reaction of an amidated drying oil and a phenol-formal dehyde in the presence of an alkali catalyst. Another form of the composition includes an amidated butadiene polymer to provide improved flexibility and chemicals resistance.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: March 2, 1982
    Assignee: Nippon Oil Co., Ltd.
    Inventors: Hajime Hara, Shingo Orii, Yoshihiko Araki
  • Patent number: 4308320
    Abstract: A coated paper having high bulk, excellent gloss and low surface mottle is prepared by first coating the paper with an aqueous composition containing pigment and a thermoplastic binder. The paper is then initially dried at a temperature of up to about 20.degree. F. above the minimum film-forming temperature of the binder until the moisture content of the sheet reaches from about 8 to about 18% by weight. The drying temperature is then increased to further dry the paper, and the dry coated paper is then calendered.
    Type: Grant
    Filed: August 20, 1980
    Date of Patent: December 29, 1981
    Assignee: Consolidated Papers, Inc.
    Inventor: Gary G. Schiller
  • Patent number: 4304820
    Abstract: 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: Grant
    Filed: January 28, 1980
    Date of Patent: December 8, 1981
    Assignee: Wacker-Chemie GmbH
    Inventors: Bernward Deubzer, Erich Brunner
  • Patent number: 4301210
    Abstract: 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: Grant
    Filed: July 17, 1980
    Date of Patent: November 17, 1981
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Nobu Yasuda, Masafumi Masuda, Tomoichi Morita
  • Patent number: 4293458
    Abstract: This invention is directed to a composition for pretreating the back of wallpaper, which comprises a mixture of:(a) a fine-grained dispersion of film-forming, non-blocking thermoplastic polymer;(b) a paraffin dispersion;(c) natural or synthetic zeolite;(d) optionally, additional conventional additives; and(e) water.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: October 6, 1981
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Eberhard Gruenberger, Roswitha Muller
  • Patent number: 4289669
    Abstract: Alkali-soluble hot melt adhesive compositions are provided which contain (a) about 10-40 weight % of an alkenyl succinic anhydride, (b) a carboxyl group containing ethylene copolymer, and (c) about 10-50 weight % of rosin.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: September 15, 1981
    Assignee: Gulf Oil Corporation
    Inventor: Pallavoor R. Lakshmanan
  • Patent number: 4283463
    Abstract: A molded product of polypropylene having an isotactic pentad fraction of the boiling heptane insoluble portion of at least about 0.955 and a boiling heptane solubles content of about 2.0 to 9.0% by weight. The molded products include a stretched film, insulating materials for electrical equipment, etc.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: August 11, 1981
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Akinobu Shiga, Kiyoshi Matsuyama, Masahiro Kakugo, Yukio Naito, Seiichiro Ima
  • Patent number: 4279964
    Abstract: A froth coated paper substrate in which the froth coating may be densified by compression when applied as a frothed resinous emulsion to improve opacity and ink-holdout of the substrate, or applied as a frothed surface size when the coating is a frothed admixture of a resin emulsion and a starch solution, or a frothed starch solution.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: July 21, 1981
    Assignee: Reichhold Chemicals, Incorporated
    Inventor: David S. Heller
  • Patent number: 4265976
    Abstract: This invention provides an ultraviolet radiation-curable coating composition which after curing has utility as a moisture barrier film for the protection of substrates such as paper and cardboard.Illustrative of the invention radiation-curable composition is a blend of components comprising (1) chlorinated rubber, (2) chlorinated paraffin; (3) vinyl acetate; (4) trimethylolpropane triacrylate; (5) photoinitiator; and (6) heat and light stabilizer for the chlorocarbon components. The invention composition cures as a substantially 100 percent solids system within one second at room temperature when exposed to ultraviolet radiation.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: May 5, 1981
    Assignee: Celanese Corporation
    Inventor: Michael T. Nowak
  • Patent number: 4265969
    Abstract: 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: Grant
    Filed: May 17, 1979
    Date of Patent: May 5, 1981
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Nobu Yasuda, Masafumi Masuda, Tomoichi Morita
  • Patent number: 4259411
    Abstract: Electroconductive coating formulations consisting essentially of (1) a barrier coating which comprises a copolymer of ethylene and vinyl acetate, styrene-butadiene latexes, sodium alginate or fluorocarbons with starch; and (2) a conductive coating.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: March 31, 1981
    Assignee: Calgon Corporation
    Inventors: Robert H. Windhager, Mei H. Hwang
  • Patent number: 4256809
    Abstract: Ambient or low-temperature curable aqueous dispersions of (1) an emulsion polymer containing units polymerized from a monomer mixture of (a) from about 0.25% to about 10% by weight of a polymerizable aldehyde, (b) from about 0.5% to about 10% by weight of an ethylenically unsaturated carboxylic acid, and (c) up to about 99.25% by weight of at least one copolymerizable mono-ethylenically unsaturated monomer, with (2) a curing agent selected from the group of dicarboxylic acid bis-hydrazides and bis-hydrazones are disclosed. The dispersions are useful in leather treating compositions, especially in top coat compositions. A process for producing fully finished leather, or leather substitutes is also disclosed.
    Type: Grant
    Filed: February 2, 1979
    Date of Patent: March 17, 1981
    Assignee: Rohm and Haas Company
    Inventors: Bjorn E. Larsson, Fred A. Desiderio
  • Patent number: 4254173
    Abstract: A secondary container packaging material for use in six pack can wraps, six pack bottle carriers, twelve pack carriers, etc., comprising a composite of a paper material laminated to a plastic film. The plastic film provides tear resistance to the composite, so that paper material may be used which has a tear resistance less than that of other secondary packaging paper materials. The reduced tear resistance allows the use of paper having a lower caliper, basis weight, and, therefore, cost than conventional secondary container packaging material. Natural kraft paper and recycled paper of 12-16 point caliper are preferred for use with the present composite. The plastic film may be 0.25-2 mils thick and is preferably formed of polyethylene terpthalate, polyethylene, polyvinylchloride, polypropylene, or cellophane. The preferred films are transparent and permit reverse printing on their inner surface to provide abrasion resistant decoration visible through the film.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: March 3, 1981
    Assignee: Coors Container Company
    Inventor: A. Dean Peer, Jr.
  • Patent number: 4242418
    Abstract: A polyolefin-paper laminate comprising (a) a base paper, (b) a copolymer of (1) at least one diene monomer and (2) at least one monovinyl substituted aromatic compound incorporated into or coated on the base paper, and (c) an extrusion coated polyolefin layer thereon. The base paper (a) impregnated with or coated with the copolymer (b) can be optionally subjected to a corona discharge treatment prior to extrusion coating of the polyolefin layer (c).
    Type: Grant
    Filed: March 26, 1979
    Date of Patent: December 30, 1980
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keishi Kitagawa
  • Patent number: 4240860
    Abstract: Two preformed materials such as paper, fabrics, glass, sheet metal, at least one of which is pervious to water vapor, are joined together with a solvent-free adhesive based on a latex of a rubbery polymer. The latex is one which is stabilized with an emulsifier which forms water-insoluble compounds with zinc or cadmium ions. Included in the adhesive formulation is an ammonium or amine salt gelling agent for the latex, a zinc or cadmium ion donor compound and sufficient ammonia or a compound which releases ammonia to provide a pH of above 8 to the adhesive formulation. A surface of at least one of the preformed materials is coated with the adhesive and then contacted with a surface of the other material and held in such contact while heating to gel the latex and evaporate the water from the intersurface layer of adhesive.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: December 23, 1980
    Assignee: Polysar Limited
    Inventors: Ernest G. Pole, Roy Clark
  • Patent number: 4241143
    Abstract: A cast coated paper which has the 20.degree. reflection gloss of 15% or more and good ink receptivity is produced by applying to a paper an aqueous coating color containing satin white in an amount of 5 to 40 parts by weight based on 100 parts by weight of pigments including the satin white, and a polymer latex having a Tg more than 45.degree. C. in an amount of 5 to 40 parts by weight of 100 parts by weight of the pigments including the satin white.
    Type: Grant
    Filed: March 13, 1979
    Date of Patent: December 23, 1980
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Yutaka Ashie, Yasuhiro Nakamura
  • Patent number: 4212927
    Abstract: The present invention relates to a process for manufacturing an artificial leather composite material, and comprises:(i) a cellulosic fibrous mass bound by means of a binding agent, and impregnated by means of at least one acrylic polymer or copolymer,(ii) an intermediate pore-blocking layer comprising at least one vinylic polymer or copolymer, and(iii) a finishing layer comprising at least one vinylic polymer or copolymer and at least one coalescence agent.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: July 15, 1980
    Assignee: Arjomari-Prioux
    Inventors: Daniel Gomez, Giampaolo Bartoli
  • Patent number: 4207222
    Abstract: The invention relates to aqueous coating agents, impregnating agents and adhesives in which the binder is a mixture of from 20 to 97% by weight of a cationic water-dispersible resin and from 3 to 80% by weight of a hydrocarbon resin, and/or a modified hydrocarbon resin, which per se is not water-dispersible. The coating agents, impregnating agents and adhesives may in particular be used for the cathodic electrocoating of metallic articles.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: June 10, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Rainer Blum, Matthias Marx
  • Patent number: 4196253
    Abstract: Disclosed are (1) coated paper comprising a paper substrate having adhered to at least one surface thereof a coating composition comprised of a binder material and an organic pigment, and (2) a paper product comprised of cellulosic fibers and an organic pigment, the organic pigment being essentially uniformly dispersed throughout the paper product. The organic pigments employed are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, and a water-soluble nonionic or anionic prepolymer in aqueous media and in the presence of a free-radical polymerization initiator.
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: April 1, 1980
    Assignee: Hercules Incorporated
    Inventor: Gavin G. Spence
  • Patent number: 4189451
    Abstract: In the use of certain metal salts of the hemi-perester of maleic acid as catalysts for the polymerization and curing of ethylenically unsaturated monomers and of methyl methacrylate-containing syrups the addition of an activator such as sodium bisulfite provides a substantial reduction in the curing time. The process is relatively insensitive to the amount of filler used. The salts of maleic hemi-peresters, in combination with the activators, are also useful for polymerizing ethylenically unsaturated monomers.
    Type: Grant
    Filed: May 25, 1978
    Date of Patent: February 19, 1980
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Ronald S. Dudinyak
  • Patent number: 4187219
    Abstract: A pigment coating composition for paper and process for the production of the coating composition by cooking a specially-treated starch product and mixing with clay, wherein the specially-treated starch is characterized as a substantially non-birefringent cold-water swelling, granular starch product.
    Type: Grant
    Filed: December 15, 1977
    Date of Patent: February 5, 1980
    Assignee: CPC International Inc.
    Inventor: Thomas K. Maher
  • Patent number: RE32542
    Abstract: A molded product of polypropylene having an isotactic pentad fraction of the boiling heptane insoluble portion of at least about 0.955 and a boiling heptane solubles content of about 2.0 to 9.0% by weight. The molded products include a stretched film, insulating materials for electrical equipment, etc.
    Type: Grant
    Filed: November 5, 1986
    Date of Patent: November 10, 1987
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Akinobu Shiga, Kiyoshi Matsuyama, Masahiro Kakugo, Yukio Naito, Seiichiro Ima