Polyvinyl Alcohol Or Modified Form Thereof Patents (Class 524/503)
  • Publication number: 20090203829
    Abstract: Polyvinyl acetals which contain acetal moieties derived by acetalizing polyvinyl alcohol with both aliphatic aldehydes or their derivatives and with amino- and/or ammonium-substituted aldehydes display exceptional substrate adhesion when used in printing ink as binders, allowing inks without adhesion promoters to be produced.
    Type: Application
    Filed: May 18, 2005
    Publication date: August 13, 2009
    Applicant: WACKER POLYMER SYSTEMS GMBH & CO. KG
    Inventor: Kurt Stark
  • Publication number: 20090171003
    Abstract: A composition having gas-barrier properties, which can produce a resin film having gas-barrier properties under high humidity conditions and high abrasion resistance, and a coating film formed by thermally treating a film-like product of the composition having gas-barrier properties and a method for producing the same are provided. A composition having gas-barrier properties, comprising a water-soluble polymer having hydroxyl group (A), a water-soluble polymer having carboxyl group (B), a metal alkoxide and/or a hydrolysis condensate thereof (C), and an esterification catalyst (E), such that the weight ratio of the component (A) and the component (B) is 97/3 to 3/97, and the component (C) is contained in an amount ranging from 1 part by weight to 400 parts by weight, while the component (E) is contained in an amount ranging from 0.
    Type: Application
    Filed: February 18, 2009
    Publication date: July 2, 2009
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Katsunori Nishiura, Kazuyuki Fukuda, Toshihiko Takaki
  • Publication number: 20090169902
    Abstract: The present invention provides an oxygen-absorbing resin composition containing a thermoplastic resin (A) having carbon-carbon double bonds substantially only in the main chain and a transition metal salt (B), and the oxygen absorption amount of 1 mol of carbon-carbon double bond of the thermoplastic resin (A) being 1.6 mols or more.
    Type: Application
    Filed: April 27, 2007
    Publication date: July 2, 2009
    Inventors: Yasutaka Inubushi, Tatsuhiko Hayashibara, Hideharu Iwasaki, Kazuhiro Kurosaki, Emi Yatagai, Tomoyuki Watanabe, Mie Kanehara
  • Publication number: 20090149593
    Abstract: It is an object of the present invention to provide an aqueous ethylene-vinyl alcohol-based copolymer dispersion which is excellent in long-term storage stability and in film-forming properties even when subjected to low-temperature or short-time drying or applied to give thick coats and can give coatings showing high gas barrier performance. The prevent invention is an aqueous ethylene/vinyl alcohol-based copolymer dispersion, which comprises: (A) an ethylene/vinyl alcohol-based copolymer with an ethylene content of 15-65 mole percent and a degree of saponification of not lower than 80 mole percent, (B) a base-neutralized ethylene/?,?-unsaturated carboxylic acid-based copolymer and (C) a polyvinyl alcohol with a degree of saponification of 75-100 mole percent and a degree of polymerization of 100-3500, the content of the polyvinyl alcohol (C) being 0.5-100 parts by weight per 100 parts by weight of the ethylene/vinyl alcohol-based copolymer (A).
    Type: Application
    Filed: November 25, 2005
    Publication date: June 11, 2009
    Applicants: SUMITOMO SEIKA CHEMICALS CO., LTD., KURARAY CO., LTD.
    Inventors: Yuhei Funabiki, Norihiro Sugihara, Kazutoshi Terada, Yukio Ozeki, Michiyuki Nanba
  • Patent number: 7538153
    Abstract: Compositions useful for preparing coating slips for inkjet recording materials include a pulverulent silane-modified fully or partially hydrolyzed polyvinylalcohol and a redispersible polymer powder.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: May 26, 2009
    Assignee: Wacker Chemie AG
    Inventors: Andreas Bacher, Karl Ernst Fickert, Theo Mayer
  • Patent number: 7537650
    Abstract: This invention relates to an ink jet ink set comprising a colored aqueous ink and a substantially colorless aqueous ink, wherein the colored ink comprises a cationic coloring agent and the colorless ink comprises an anionic polymer or oligomer.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: May 26, 2009
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Xiaoru Wang
  • Patent number: 7534829
    Abstract: Provided is a resin composition comprising 1-99% by weight of a modified ethylene-vinyl alcohol copolymer (C) having an ethylene content of 5-55 mol %, which contains a specific structural unit (I) in an amount of 0.3-40 mol % and can be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500, and 1-99% by weight of a thermoplastic resin (T1) other than (C). Moreover, a multilayer structure in which the resin composition and a thermoplastic resin (T2) are laminated is also provided. Thus, a resin composition superior in barrier properties, transparency, stretchability, flexibility, flexing resistance and interlayer adhesiveness and various kinds of molded articles made thereof are provided.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: May 19, 2009
    Assignee: Kuraray Co., Ltd.
    Inventors: Shinji Tai, Kaoru Ikeda, Haruhisa Masuda, Tomoyuki Watanabe, Kouta Isoyama
  • Publication number: 20090118416
    Abstract: Provided is an aqueous liquid dispersion having excellent water resistance and shelf viscosity stability, wherein (A) polymer particles mainly composed of at least one monomer unit selected from ethylenically unsaturated monomers and diene unsaturated monomers while containing 0.1-10% by weight of at least one crosslinkable unsaturated monomer unit selected from carboxyl group-containing unsaturated monomers, N-methylol (meth)acrylamide, N-butoxymethyl (meth)acrylamide, diacetone acrylamide and acetoacetoxyethyl (meth)acrylate; (B) a vinyl alcohol polymer containing 1-10% by mole of an ethylene unit and (C) a carboxyl group-containing vinyl alcohol polymer, or (E) a vinyl alcohol copolymer containing 1-10% by mole of an ethylene unit and 0.1-10% by mole of a carboxyl group-containing monomer unit; and (D) a crosslinking agent are contained at a certain solid content weight ratio. Also provided are a method for producing such an aqueous liquid dispersion, a composition, an adhesive and a coating material.
    Type: Application
    Filed: July 3, 2006
    Publication date: May 7, 2009
    Applicant: KURARAY CO., LTD
    Inventors: Masato Nakamae, Hideki Maki
  • Publication number: 20090118403
    Abstract: A process for making a faux finish with a two-part reactive system of materials includes providing a base material liquid of Poly Vinyl Acetate resin and water mixed with a dry powder functional filler and adding an activator liquid to the base material liquid. The activating liquid is a mixture of water and muriate of potash or boric acid product.
    Type: Application
    Filed: January 13, 2009
    Publication date: May 7, 2009
    Inventor: Raymond Sandor
  • Patent number: 7521522
    Abstract: The invention relates to a method for producing a granulate with a low acetaldehyde content and improved processing properties from a high-viscosity polyester melt, wherein the polyester melt strand is fragmented under water at the highest possible temperature, the accompanying water is separated from the granulate with the least possible cooling of the granulate, the low-water granulate obtained in this way is passed after removal of the water directly into a dealdehydisation container and the granulate in the dealdehydisation container is treated with a flow of rinsing air, plus a device for carrying out this method.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: April 21, 2009
    Assignee: Lurgi Zimmer GmbH
    Inventors: Brigitta Otto, Rainer Linke, Roland Schafer, Holger Bachmann
  • Patent number: 7521502
    Abstract: In an aerosol spray composition suitable for coating automobile exteriors, where the aerosol composition is pressurized in a container with propellant and includes water and a polyvinyl alcohol composition, the improvement being that said polyvinyl alcohol composition includes: a) from 50 to 99 wt % of a partially hydrolyzing first polyvinyl alcohol resin having a degree of hydrolysis in the range of from about 80 to about 90 percent; and (b) from 1 to 50 wt % of a second polyvinyl alcohol resin having an elevated degree of hydrolysis.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: April 21, 2009
    Assignee: Celanese International Corporation
    Inventors: Georgia Lynn Lambert, Darin Michael Palmer, Eduardo Nochebuena-Romero, Richard Vicari, Arnold Ybarra
  • Patent number: 7514500
    Abstract: The invention provides a process for preparing polymeric beads of complexing resin incorporating magnetic particles, which process comprises: producing a dispersion having a continuous aqueous phase and a dispersed organic phase, said organic phase comprising one or more polymerisable monomers, magnetic particles and a dispersing agent for dispersing said magnetic particles in the organic phase; polymerising said one or more polymerisable monomers to form polymeric beads incorporating said magnetic particles, wherein said polymeric beads include amine groups capable of complexing a transition metal cation, or wherein said polymeric beads are reacted with one or more compounds to provide amine groups capable of complexing a transition metal cation, complexing resins prepared by this process, and polymeric beads of complexing resin comprising a polymer matrix having magnetic particles dispersed substantially uniformly therein, wherein the polymer matrix incorporates amine groups capable of complexing a transiti
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: April 7, 2009
    Assignees: Commonwealth Scientific and Industrial Research Organization, Orica Australia Pty. Ltd.
    Inventors: Robert James Eldridge, Marck Norret, Thomas W. Dahlke, Mathew John Ballard, Beryn John Adams
  • Patent number: 7514493
    Abstract: A method for containing at least a portion of radioisotopes, radionuclides, heavy metal or combination thereof contaminating a substrate wherein a containment composition is applied to the substrate. The ingredients within the containment composition interact with the contaminants on the surface of the substrate until the containment composition has polymerized to a water insoluble form containing at least a portion of the contaminates enmeshed therein. The dried composition is removed from the contaminated surface removing with the composition at least a portion of the contaminate.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: April 7, 2009
    Assignee: Sandia Corporation
    Inventors: Robert C. Moore, Mark D. Tucker, Joseph A. Jones
  • Publication number: 20090075105
    Abstract: Disclosed is a resin composition containing a polyvinyl alcohol resin (A) having an active hydrogen-containing functional group, and an N-amino poly(acrylamide)-based resin (B) having a (meta)acrylic acid structural unit represented by the general formula (1) below and an acrylamide structural unit represented by the general formula (2) below. This resin composition has high crosslinking rate, and enables to obtain a crosslinked product having excellent waterproof. (In the formula, R represents a hydrogen or a methyl group, and X represents a hydrogen or an alkali metal.
    Type: Application
    Filed: February 20, 2007
    Publication date: March 19, 2009
    Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Hiroyuki Ono, Shusaku Mandai, Katsumi Edasawa
  • Publication number: 20090054579
    Abstract: To provide an adhesive composition which is easily transported and stored, is remarkably excellent in redispersibility in water at a site where it is used and exhibits high performance as an adhesive agent or a coating agent. The above problem is solved by an adhesive composition composed of a synthetic resin powder (A) obtained by drying an aqueous emulsion (EM) containing a polyvinyl alcohol polymer (PVA-1) as a dispersant and a polymer having at least one monomer unit selected from the group consisting of ethylenically unsaturated monomers and diene monomers as a dispersoid, an inorganic powder (B) and a polyvalent isocyanate compound, wherein (A)/(B) is to 100/250.
    Type: Application
    Filed: December 19, 2006
    Publication date: February 26, 2009
    Applicant: Kuraray Co., Ltd.
    Inventor: Masato Nakamae
  • Patent number: 7491766
    Abstract: The present invention provides an aqueous emulsion having excellent polymerization stability and standing stability and a redispersible powder. Specifically, the present invention relates to an aqueous emulsion of a polymer obtained by polymerizing an acrylic monomer in the presence of a polyvinyl alcohol containing an acetoacetic ester group; wherein the polyvinyl alcohol containing an acetoacetic ester group has block character [?] of 0.3 to 0.6, hydrolysis degree of at least 97% by mol and acetoacetic esterification degree of 0.01 to 1.5% by mol, and the value obtained by dividing the maximum value by the minimum value of the respective average acetoacetic esterification degree for each of the polyvinyl alcohol containing an acetoacetic ester group separated by particle size of 44 to 74, 74 to 105, 105 to 177, 177 to 297, 297 to 500 and 500 to 1680 ?m is 1.0 to 3.0. Also, the present invention relates to a redispersible fiber obtained by drying the aqueous emulsion.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: February 17, 2009
    Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Mitsuo Shibutani, Kiyoharu Kitamura, Kinji Taki, Masaaki Yamada
  • Publication number: 20090043037
    Abstract: An aqueous coating composition comprising a hydrophilic cationic polymer having an amino group (A), nonionic polyalcohol (B), a tri- or more valent silane compound (C), and water (D). According to the aqueous coating composition of the present invention, it is possible to produce an organic and inorganic hybrid coating film having a high degree of hardness and excellent abrasion resistance in relative mild production conditions by a simple method.
    Type: Application
    Filed: June 23, 2005
    Publication date: February 12, 2009
    Inventors: Hirohide Nakakuma, Ren-Hua Jin, Seungtaeg Lee
  • Patent number: 7488770
    Abstract: A polychloroprene latex is provided with excellent adhesive strength, particularly for an EVA material, by dissolving an ethylene/vinyl acetate copolymer in a chloroprene monomer alone or in a mixture of a chloroprene monomer and a monomer copolymerizable with chloroprene to prepare a monomer solution, which is emulsified and dispersed in an aqueous solution containing an emulsifier and/or a dispersant, followed by polymerization to produce a polychloroprene latex. The obtained polychloroprene latex can provide improved adhesive strength particularly for an EVA material.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: February 10, 2009
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Kosuke Watanabe, Motohiro Ose
  • Publication number: 20090035582
    Abstract: The invention provides a PTFE-containing aqueous dispersion composition which is excellent in mechanical stability and scarcely allows the formation of agglomerates due to fibrillation of the PTFE resin during transportation or processing thereof. This invention is a polytetrafluoroethylene-containing aqueous dispersion composition comprising a polytetrafluoroethylene resin (A), a hydrocarbon-derived nonionic compound (B) and a water-soluble high-molecular compound (C) having no oxygen atom in the main chain thereof.
    Type: Application
    Filed: March 9, 2006
    Publication date: February 5, 2009
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Yasukazu Nakatani, Toshirou Miura, Yasuhiko Sawada, Hiroshi Torii
  • Patent number: 7479519
    Abstract: The curable urethane polymer adhesive or coating of the present invention comprises at least one ethylenically unsaturated monomer and in one embodiment an aliphatic conjugated diene monomer, a hydroxy functional monomer, and a colloid having hydroxy functionality and a moiety having isocyanate functionality. The colloid having hydroxy functionality is present with the ethylenically unsaturated monomer and the hydroxy-functional monomer during polymerization so as to become incorporated into the latex to provide stabilization.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: January 20, 2009
    Assignee: Mallard Creek Polymers, Inc.
    Inventor: Venkataram Krishnan
  • Patent number: 7459213
    Abstract: A composition comprising the following components: 100 parts by weight of an organopolysiloxane (A), 0.1 to 30 parts by weight of a crosslinking agent (B), 50 to 1,000 parts by weight of a polyvinyl alcohol homopolymer or copolymer (C), 0 to 5 parts by weight, as an active ingredient, of a catalyst (D), 100 to 100,000 parts by weight of water (E), and 0.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: December 2, 2008
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Kenji Yamamoto, Masahiko Ogawa, Tsutomu Nakajima
  • Publication number: 20080274350
    Abstract: The present invention has its object to provide a coating material with a gas-barrier property which can give a very transparent packaging material with a satisfactory gas-barrier property when it has a thin gas-barrier layer and, when it has a gas-barrier layer with an ordinary thickness, can give a packaging material with a higher gas-barrier property, a process for producing such coating material with a gas-barrier property, and a packaging container with a high gas-barrier level obtained by coating with such coating material with a gas-barrier property. The present invention provides a coating material composition with a gas-barrier property which comprises, as essential components, an ethylene-vinyl alcohol copolymer (A) obtained by saponifying an ethylene-vinyl acetate copolymer, an inorganic layered compound (B) and a solvent, wherein the total amount of (A) and (B) is 1 to 30% by mass and the mass ratio (A)/(B) is (30/70) to (50/50).
    Type: Application
    Filed: August 4, 2003
    Publication date: November 6, 2008
    Applicant: SAKATA INX CORP
    Inventors: Yutaka Matsuoka, Yoshiaki Ueno, Masanori Kano
  • Publication number: 20080269397
    Abstract: A description is given of coating compositions comprising at least one strongly basic agent to set a pH of at least 10, at least one selected vinyl ester copolymer, if desired, pigment and/or filler, and, if desired, further additives customary per se. The coating compositions can be stored without use of additional preservatives and can be used to coat substrates of all kinds.
    Type: Application
    Filed: May 4, 2005
    Publication date: October 30, 2008
    Applicant: Celanese Emulsions GmbH
    Inventors: Thomas Fichtner, Ivan Cabrera, Bernhard Momper
  • Publication number: 20080262131
    Abstract: The invention relates to one-component aqueous dispersion adhesives containing at least one copolymer A of monomers ethylene, vinyl acetate and, optionally, at least one (meth)acrylate and either at least one polyurethane with carboxyl groups and carbodiimide groups PUR-COOH-CDI or a mixture of a polyurethane with carboxyl groups PUR-000H and with a carbodiimide CDI. These dispersion adhesives are particularly well-suited for use as laminating adhesives and sealing adhesives. The invention also relates to the precoating of flat materials with a one-component aqueous dispersion adhesive.
    Type: Application
    Filed: May 17, 2005
    Publication date: October 23, 2008
    Inventors: Martin Linnenbrink, Peter Kuehnemund, Jurgen Mueller
  • Patent number: 7439300
    Abstract: The present invention provides polyvinyl alcohol based (PVA) whose solubility in water varies with a small temperature change to a sufficiently great degree. In manufacturing a polyvinyl alcohol based polymer by: progressing a transesterification reaction of a polyvinyl ester based polymer with alcohol in a liquid reaction mixture including the polyvinyl ester based polymer, the alcohol, and a basic compound; precipitating the polyvinyl ester based polymer, at least a part of which has been transesterified with the alcohol, out of the liquid reaction mixture; and further progressing the transesterification reaction in the liquid reaction mixture including the polyvinyl ester based polymer that has precipitated, the liquid reaction mixture has a temperature of 75° C. to 150° C. when the polyvinyl ester based polymer, at least a part of which has been transesterified, starts precipitating.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: October 21, 2008
    Assignee: Kuraray Co., Ltd.
    Inventors: Hisamichi Yanai, Yoshihiro Tokuda, Jin Tokuyasu, Kimiko Miyata, Naoki Fujiwara, Takeshi Kusudou
  • Publication number: 20080255289
    Abstract: The invention relates to a dried emulsion. In particular, the invention relates to a dried emulsion containing a liquid hydrophobic phase and a water-soluble or water-dispersible polymeric matrix whose hydrophobic phase content is high. The invention also relates to a method for producing the dried emulsion and to uses of this emulsion. The utilized water-soluble matrix contains block copolymers.
    Type: Application
    Filed: March 15, 2005
    Publication date: October 16, 2008
    Inventors: Sophie Deroo, Alain Senechal, Jean-Michel Mercier, Nadia Martin
  • Publication number: 20080241533
    Abstract: The present invention relates to sizing compositions, glass fibers at least partially coated with sizing compositions, and glass fiber reinforced composite materials. In one embodiment, a sizing composition comprises at least one maleic anhydride copolymer, at least one coupling agent, and a reaction product of an alkoxylated amine and a polycarboxylic acid, which is further reacted with an epoxy compound.
    Type: Application
    Filed: December 14, 2007
    Publication date: October 2, 2008
    Inventors: Jacob Cornelis Dijt, Jacob Hendricus Antonius Van Der Woude, Ronald Boelman
  • Publication number: 20080171825
    Abstract: The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed, and a process for preparing the same.
    Type: Application
    Filed: March 17, 2008
    Publication date: July 17, 2008
    Inventors: Elliott Echt, Peter A. Morken, G. Michael Collins
  • Publication number: 20080160854
    Abstract: Provided is thermosetting urea-formaldehyde (UF) resin binder formulation modified with a thickener. The formulation preferably has a viscosity in the range of from 3 to 10 cP and a surface tension of from 35 to 50 mN/m, and is preferably prepared from a binder composition exhibiting a viscosity of from 175 to 250 cP.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 3, 2008
    Inventors: Souvik Nandi, Guodong Zheng, Jawed Asrar, Philip Francis Miele
  • Publication number: 20080153958
    Abstract: This invention is a substantially completely biodegradable high starch polymer using completely biodegradable high polymer polyvinyl alcohol [PVOH] that is made to be compatible with starch. The two ingredients are mixed with the optional addition of elasticity enhancer and supplement agent to better the stability and durability of the products. During the mixing and heating process the starch molecular structures are randomized. The randomized starch molecules, the PVOH, the elasticity enhancer and the supplement then under go the process of co-polymerization. The mixture is then extruded, at a temperature that is above the crystallization temperature of the starch molecules, to form the first stage product, the pellets. The pellets can then be extruded into films using a traditional plastic film extruder.
    Type: Application
    Filed: May 17, 2005
    Publication date: June 26, 2008
    Applicants: BIOSTARCH TECHNOLOGY PTE LTD, BEIJING JINBAODI BIO-ENVIRONMENTAL TECHNOLOGY LTD
    Inventors: Chun Yang Ding, Yi Hua Zheng, Xian Zhang
  • Publication number: 20080070035
    Abstract: A thermosensitive adhesive composition containing a thermoplastic resin, an adhesiveness imparting agent and a solid plasticizing agent containing a dispersing agent, wherein the dispersing agent is a polyvinyl alcohol based resin having a weight average molecular weight of from 11,000 to 39,000.
    Type: Application
    Filed: September 18, 2006
    Publication date: March 20, 2008
    Inventors: Tohru Kitano, Tomoyuki Kugoh, Norihiko Inaba
  • Patent number: 7332025
    Abstract: The present invention provides a resin composition that is added when a multi-layer structure containing hydrolyzed ethylene-vinyl acetate copolymer is reground into a multi-layer structure and a process for preparing a multi-layer structure using the resin composition. Specifically, the present invention relates to a resin composition comprising (A) polyolefin, (B) metal salt of higher fatty acid having 12 to 30 carbon atoms and (C) zeolite. Also, the multi-layer structure is prepared by the process of regrinding by adding the resin composition to a multi-layer structure containing hydrolyzed ethylene-vinyl acetate copolymer.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: February 19, 2008
    Assignees: The Nippon Synthetic Chemical Industry Co., Ltd., SOARUS, L.L.C.
    Inventors: Mitsuzo Shida, Mark S. Pucci, Kuniyasu Kato, Hideshi Onishi
  • Patent number: 7323505
    Abstract: The present invention relates to aqueous dispersions for solid phenolic antioxidants, wherein the antioxidants are dispersed in the aqueous phase with polyvinyl alcohol as dispersing agent. The invention also relates to a process, which comprises stabilising a polymer material against oxidative, thermal or light-induced degradation by adding to the polymer the aqueous dispersion.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: January 29, 2008
    Assignee: Ciba Specialty Chemicals Corp.
    Inventor: Daniel Thibaut
  • Patent number: 7323503
    Abstract: A process for producing an ethylene-vinyl alcohol copolymer resin, including feeding EVOH into an extruder, keeping the temperature of the melting resin in the extruder at 70 to 170° C., adjusting the amount of water in the extruder so that the water content right after being discharged from the extruder is 5 to 40 weight %, and extruding out the EVOH resin. The extruded EVOH resin is cut into EVOH pellets. Thereby, it is possible to obtain resin pellets in which no spherocrystals are observed in the center of the cross section of the resin when the cross section is observed by the use of a polarization microscope, or no lubricant is contained in the resin pellets, and the angle of repose is 23° or less when the resin pellets are laminated.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: January 29, 2008
    Assignee: Kuraray Co., Ltd.
    Inventors: Takaharu Kawahara, Hiroshi Kawai, Toshio Tuboi, Yukihiro Ohara, Masao Hikasa
  • Patent number: 7319118
    Abstract: The present invention relates to the use of aqueous copolymer poly(vinyl ester) dispersions which comprise cellulose ethers in an amount up to a maximum of 0.45% by weight in food-coating compositions, and also food-coating compositions which comprise these aqueous copolymer poly(vinyl ester) dispersions, and their use in the coating of food, especially in the production of hard cheese.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: January 15, 2008
    Assignee: Celanese GmbH
    Inventors: Bernd Papenfuhs, Holger Schimanke
  • Patent number: 7312272
    Abstract: A novel food coating substance comprising a plasticizer-free aqueous copolymer poly(vinyl ester) dispersion of emulsion polymer, emulsifier, protective colloid and optionally other stabilizers is outstandingly suitable for the surface treatment or surface coating of hard cheese or semi-hard cheese, but also of meat products, fruits, nuts or seed material.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: December 25, 2007
    Assignee: Celanese Emulsions GmbH
    Inventors: Martin Jakob, Heinrich Harrer
  • Patent number: 7300969
    Abstract: An ink jet recording medium including an ink receiving layer disposed on at least one side of a support, wherein the ink receiving layer is formed by applying an ink receiving layer coating solution. The ink receiving layer coating solution includes a water-soluble resin and a fine silica dispersion that has been prepared by finely dispersing a preliminary silica dispersion. The preliminary silica dispersion includes fumed silica, a cationic polymer having an I/O value of 2.4 or less, and alcohol.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: November 27, 2007
    Assignee: Fujifilm Corporation
    Inventors: Ryoichi Nakano, Shinji Fujimoto, Masanobu Takashima
  • Patent number: 7297733
    Abstract: Aqueous dispersions of water-soluble polymers of N-vinylcarboxamides contain, based on 100 parts of water, (A) from 5 to 80 parts by weight of water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units and having particle sizes of from 50 nm to 2 ?m and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the water-soluble polymers (A) in aqueous solution, which dispersions are prepared by polymerizing (A) from 5 to 80 parts by weight of N-vinylformamide and/or N-vinylacetamide, if desired together with other monoethylenically unsaturated monomers which form water-soluble polymers therewith, and (B) from 1 to 50 parts by weight of at least one polymeric dispersant which is incompatible with the polymers, formed from the monomers (A), in aqueous solution, in 100 parts by weight of water, at from 30 to 95° C. in the presence of from 0.001 to 5.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: November 20, 2007
    Assignee: BASF Aktiengesellschaft
    Inventors: Anton Negele, Werner Gauweiler, Hubert Meixner, Norbert Mahr, Martin Ruebenacker
  • Patent number: 7297739
    Abstract: This invention relates to a polymer precursor dispersion for use in making a polymer that is a solid at room temperature and further relates to a method of making same where the dispersion comprises a polymer precursor comprising an addition monomer, a condensation monomer, a prepolymer, or a polymer modifier and 0.01 to 50 weight percent of a micropulp having a volume average length of from 0.01 to 100 micrometers.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: November 20, 2007
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: John Chu Chen, Arnold Frances, Sam Louis Samuels
  • Patent number: 7279510
    Abstract: An extrudable PVA-containing composition is disclosed, which enables PVA articles to be manufactured on conventional extrusion apparatus. The compositions includes a lubricant, such as a fatty acid amide, most preferably octodecanamide and is most preferably formed into pellets by cold pressing.,The compositions are suitable for manufacturing a variety of products.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: October 9, 2007
    Assignee: PVAXX Research & Development Limited
    Inventor: Henry Guy Stevens
  • Patent number: 7265177
    Abstract: The present invention provides a resin composition containing a polyolefin resin (A), a metal soap (B), a saponified product (C), and a hydrotalcite compound and/or a hydrotalcite solid solution (D). The resin composition shows superior long-run formability (surface smoothness, suppression of fish eye, pigment dispersibility), suppressive effect on die build-up and superior transparency and gas barrier property when added to a regrind layer during formation of a laminate having the regrind layer. Therefore, the composition is highly useful as an additive for collected materials (regrind) for forming various laminates.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: September 4, 2007
    Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.
    Inventors: Hideshi Onishi, Masashi Sogawa
  • Patent number: 7258815
    Abstract: The use of optical brighteners of the formula (II): in which Y denotes a radical of the formula and the other substituents have the meaning stated in the description, for brightening aqueous coating slips comprising at least one latex binder and at least one synthetic co-binder differing therefrom.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: August 21, 2007
    Inventors: Karl-Heinz Drenker, Heinz Giesecke, Bernhard Hunke, Bernd Hauschel, Reiner Gottschalk, Claudia Hundertmark
  • Patent number: 7250468
    Abstract: Polyvinyl-alcohol-stabilized redispersible powders which have plasticizing properties are obtained by drying polyvinyl-alcohol-stabilized aqueous dispersions of polymers of one or more monomers from the group of vinyl esters of optionally branched C1-18 alkylcarboxylic acids, (meth)acrylic esters of optionally branched C1-15 alcohols, dienes, olefins, vinylaromatics and vinylhalides, in the presence of a copolymer formed from a) one or more monomers from the group of ethylenically unsaturated monocarboxylic acids, ethylenically unsaturated dicarboxylic acids and their anhydrides, each having 4 to 8 carbon atoms, and salts thereof, b) one or more ethylenically unsaturated compounds containing sulfonic, sulfuric, and/or phosphonic acid groups, and salts thereof, and c) one or more monomers from the group consisting of vinyl esters of optionally branched C1-18 alkylcarboxylic acids and (meth)acrylic esters of optionally branched C1-15 alcohols.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: July 31, 2007
    Assignee: Wacker Polymer Systems GmbH & Co. KG
    Inventors: Reinhard Harzschel, Thomas Bastelberger, Ulf Dietrich, Armin Hoffmann
  • Patent number: 7241487
    Abstract: Provided is a novel fiberglass binder comprising a polycarboxy polymer and a polyol. The amount of polycarboxy polymer and polyol contained in the binder is such that the ratio of equivalents of hydroxyl groups to carboxy groups is preferably in the range from about 0.6/1 to 0.8/1. It is further preferred that the molecular weight of the polycarboxy polymer is less than 10,000, and more preferably less than 5000.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: July 10, 2007
    Assignee: Johns Manville International, Inc.
    Inventors: Thomas J. Taylor, Derek C. Bristol
  • Patent number: 7232858
    Abstract: The present invention relates to the thermoplastic hydrophilic adhesive compositions having an increased adhesion capability and stability on moist or wet surfaces. The adhesive compositions comprise a thermoplastic hydrophilic homogeneous polymeric matrix having selected liquid absorption capacity, liquid absorption rate, and rheology. The adhesive compositions of the present invention are particularly suitable as topical adhesives for skin adhesion of articles such as disposable waste management articles, disposable absorbent articles, and personal care articles.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: June 19, 2007
    Assignee: The Procter & Gamble Company
    Inventors: Lidia Bonfanti, Pietro Lunetto, Italo Corzani, Maurizio Marchesini
  • Patent number: 7214727
    Abstract: This invention relates to a method of preparing cellulose solution which is homogeneous at relatively low temperature, in which a small amount of cellulose powder or polyvinylalcohol is dissolved in the liquid-state, concentrated N-methylmorpholine-N-oxide (hereinafter, referred to as ‘NMMO’) so as to lower the solidifying temperature of NMMO, and then, the resulting solution and cellulose powder are fed into an extruder so as to be mixed, swollen and melted in the extruder.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: May 8, 2007
    Assignee: Hyosung Corporation
    Inventors: Ik-Hyeon Kwon, Soo-Myung Choi, Young-Soo Wang, Sung-Ryong Kim, Jae-Shik Choi, Tae-Jung Lee, Seok-Jong Han, Myung-Woo Kim
  • Patent number: 7205350
    Abstract: The present invention relates to aqueous dispersions for solid phenolic antioxidants, wherein the antioxidants are dispersed in the aqueous phase with polyvinyl alcohol as dispersing agent. The invention also relates to a process, which comprises stabilising a polymer material against oxidative, thermal or light-induced degradation by adding to the polymer the aqueous dispersion.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: April 17, 2007
    Assignee: Ciba Specialty Chemcials Corp.
    Inventor: Daniel Thibaut
  • Patent number: 7202300
    Abstract: A method of preparing a dispersion which includes the step of contacting a first phase, a first material immiscible therewith, a first polymeric material and a second polymeric material wherein: (a) (i) said first polymeric material has a repeat unit of the formula (I), wherein A and B are the same or different, are selected from optionally-substituted aromatic and thereoaromatic groups and at least one comprises a relatively polar atom or group and R1 and R2 independently comprise relatively non-polar atoms or groups; (ii) said first polymeric material is prepared or preparable by providing a compound of general formula (I), wherein A, B, R1 and R2 are as described above, in an aqueous solvent and causing the groups C?C in said compound to react with one another to form said first polymeric material; (b) said second polymeric material includes a functional group which is able to react with said first polymeric material so that covalent bonds are formed between said first and second polymeric materials; (c) t
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: April 10, 2007
    Assignee: Advanced Gel Technology Limited
    Inventors: Donald Eagland, Nicholas John Crowther
  • Patent number: 7144946
    Abstract: Compositions including from about 1% to about 30% by weight of cationic polyvinyl alcohol graft copolymer in an aqueous solution, pigment, and other binding agents are useful in coatings for ink jet printing of paper, textile and plastic substrates, and also as wet end additives for papermaking. The polyvinyl alcohol has a weight average molecular weight between about 13,000 and about 140,000 and is between about 86 and 100 mole % hydrolyzed.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: December 5, 2006
    Inventors: Hugh McIntyre Smith, William Clary Floyd
  • Patent number: 7125914
    Abstract: This invention relates to a heat-cured furan foundry binder system comprising a furan binder and a furan monomer or oligomer containing at least two terminal hydroxymethyl groups. The binders are particularly useful as warm-box binders, because they cure faster and foundry shapes (typically cores and molds) made with the binders exhibit higher tensile strengths than those made with conventional heat-cured furan binders.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: October 24, 2006
    Assignee: Ashland Licensing and Intellectual Property LLC
    Inventor: Ken K. Chang