Polyvinyl Alcohol Or Modified Form Thereof Patents (Class 524/503)
  • Patent number: 7115675
    Abstract: A method of improving ink stability. A block co-polymer is added to either an under-/overprinting vehicle or an ink vehicle. The polymer increases chemical interactions between the ink the print media. The under-/overprinting vehicle and the ink vehicle interact through electrostatic interactions while the polymer increases smearfastness by interacting with the print media through non-covalent interactions.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: October 3, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: David M. Schut
  • Patent number: 7112629
    Abstract: Ink-receiving print media products capable of producing high quality printed images which are light-fast, humid-fast, have low coalescence (graininess) levels, and are characterized by other beneficial attributes. The print media products have at least one ink-receiving layer supported by a substrate. The ink-receiving layer includes a binder blend designed to achieve the aforementioned goals, namely, gelatin, a poly(vinyl alcohol-polyethylene oxide) copolymer, and a poly((styrene)-(n-butyl acrylate)-(methyl methacrylate)-(2-(tert-butylamino) ethyl methacrylate)) copolymer. One or more optional pigments and/or additional binders can also be included within the ink-receiving layer. The ink-receiving layer may optionally be employed in combination with one or more additional material layers thereover or thereunder which can contain, for example, one or more pigments and/or binders.
    Type: Grant
    Filed: December 7, 2004
    Date of Patent: September 26, 2006
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bor-Jiunn Niu, Stefan Schuttel, Meinrad Schaer
  • Patent number: 7105594
    Abstract: An adhesive having a resin selected from polyvinyl butyral resins, phenolic resins, epoxy resins, and mixtures thereof, and at least one type of filler such as a carbon filler, for use in seaming components useful in electrostatographic, contact electrostatic, digital and other like machines.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: September 12, 2006
    Assignee: Xerox Corporation
    Inventors: Ihor W. Tarnawskyj, Joseph A. Swift, Christopher P. Manos, Theodore Lovallo
  • Patent number: 7078448
    Abstract: The invention relates to a polymer dispersion which contains water, at least one polymer that has been produced by emulsion polymerisation, at least one protective colloid, at least one water-soluble acidic metallic salt and at least one cross-linking resin that is based on phenol-formaldehyde condensation products, hydroxymethyl-substituted imidazolidinones, such as 1,3-dimethylol-4,5-dihydroxy-imidazolidinone (4,5-dihydroxy-N,N?-dimethylolethylene urea), hydroxymethyl-substituted pyrimidinones, or hydroxymethyl-substituted triazinones or their auto-condensation products, or mixed condensates from two or more of the aforementioned compounds, or a mixture of two or more of the aforementioned compounds.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: July 18, 2006
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Roberto Pavez Aranguiz, Christoph Lohr, Hugo A. Garcia Arcos, Gerard Jakubowski, Klaus Friedrich
  • Patent number: 7078462
    Abstract: An automatic laundry or dishwashing product in unit dose form comprising at least three distinct zones for delivering into at least three different stages in the washing cycle. The product provides improved cleaning, care and finishing benefits.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: July 18, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Lynda Anne Speed, Glenn Steven Ward
  • Patent number: 7067579
    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 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: January 2, 2002
    Date of Patent: June 27, 2006
    Assignee: Johns Manville
    Inventors: Thomas J. Taylor, Derek C. Bristol
  • Patent number: 7064158
    Abstract: A resin composition comprising 70 to 99.9% by weight of ethylene-vinyl alcohol copolymer (A) and 0.1 to 30% by weight of a thermoplastic resin (B) other than the ethylene-vinyl alcohol copolymer (A) is provided. In the resin composition, an ethylene content ETa (mol %) and a degree of saponification SDa (%) of the ethylene-vinyl alcohol copolymer (A) satisfy the following equations (1) and (2): 25?ETa?55??(1) 90?SDa<99, ??(2) and an oxygen absorption rate of the resin composition is 0.01 ml/m2·day or more.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: June 20, 2006
    Assignee: Kuraray Co., Ltd.
    Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya
  • Patent number: 7056969
    Abstract: An aqueous coating formulation for use in preparing ink jet recording materials is provided. The coating formulation, which employs porous pigments and/or metal oxide gels in combination with inorganic pigments (i.e., calcium carbonate and mixtures of calcium carbonate and alumina), has a relatively high binder-to-pigment dry weight ratio. An ink jet recording material prepared using such an aqueous coating formulation is also provided. The ink jet recording material demonstrates good printability and provides images having excellent water and humidity resistance and high image densities. In a preferred embodiment, the inventive recording material further demonstrates good light or fade resistance.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: June 6, 2006
    Assignee: Kanzaki Specialty Papers, Inc.
    Inventors: Simon Roberto Cuch, George Roderick Stevens, Jr.
  • Patent number: 7052773
    Abstract: Silane-modified polyvinyl alcohol mixtures comprising: a) a low molecular weight, silane-containing polyvinyl alcohol having a Höppler viscosity according to DIN 53015 as a 4% by weight aqueous solution of from 1 to 25 mPas, and b) a higher molecular weight, silane-containing polyvinyl alcohol having a Höppler viscosity according to DIN 53015 as a 4% by weight aqueous solution of from 10 to 50 mPas, the silane-containing polyvinyl alcohol a) having a lower Höppler viscosity than the silane-containing polyvinyl alcohol b), are useful as non-dilatant polymeric binders for paper coating slips.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: May 30, 2006
    Assignee: Wacker Polymer Systems GmbH & Co. KG
    Inventors: Andreas Bacher, Karl-Ernst Fickert, Theo Mayer
  • Patent number: 7037972
    Abstract: A multicomponent system curable thermally and with actinic radiation (dual cure), comprising (A) at least one component comprising at least one constituent containing at least one isocyanate-reactive functional group and at least one functional group having at least one bond which can be activated with actinic radiation, and at least one vinylaromatic-allyl alcohol copolymer, and (B) at least one component comprising at least one polyisocyanate, and its use as a coating material, adhesive and sealing compound.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: May 2, 2006
    Assignee: BASF Coatings AG
    Inventors: Egbert Nienhaus, Bernhard Lettmann
  • Patent number: 7034068
    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: October 30, 1999
    Date of Patent: April 25, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Anton Negele, Werner Gauweiler, Hubert Meixner, Norbert Mahr, Martin Rübenacker
  • Patent number: 7019054
    Abstract: A formulation, and a process for making same, is disclosed which is useful as a coating or treatment for imparting oil and grease resistance to an underlying substrate. The formulation does not contain any fluorochemicals. At the same time, however, the formulation provides oil and grease resistance properties that are equivalent to known coatings and treatments which contain fluorochemicals, particularly those coatings which are permitted to come into direct contact with food products. Therefore, the formulation of the present invention is ideal for use as a coating for paper and paperboard, including paper packaging such as that utilized in food wrappers, food containers, food receptacles and the like, and for other shaped articles. The formulation is also useful as a coating or treatment for providing release properties to an underlying substrate without the use of silicone.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: March 28, 2006
    Inventors: Ajit S. Dixit, Melvin G. Mitchell, Jeanette M. Paris, Mark J. Andersen, Christy M. Huggins
  • Patent number: 7015274
    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: May 2, 2003
    Date of Patent: March 21, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: John Chu Chen, Arnold Frances, Sam Louis Samuels
  • Patent number: 7012116
    Abstract: This invention relates, in general, to blend compositions of an unmodified poly vinyl alcohol and a thermoplastic elastomer and thermoplastic film and fiber structures comprising these blend compositions. More specifically, this invention relates to substantially water-free films and fibers comprising unmodified polyvinyl alcohol and a thermoplastic elastomer.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: March 14, 2006
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: David Michael Schertz, James Hongxue Wang, Gregory J. Wideman, William S. Pomplun
  • Patent number: 7005459
    Abstract: The present invention includes a composition having a co-continuous interconnecting channel morphology. These co-continuous interconnecting channels are predominately occupied with a polymer and particles that control the percolation through the composition. The particles are composed of a material such as an absorbing agent, releasing agent and/or activation agent. The polymer composition may be used to form a desired shaped article such as plug type inserts and liners for closed containers, or it may be formed into a film, sheet, bead or pellet.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: February 28, 2006
    Assignee: CSP Technologies, Inc.
    Inventor: Ihab M. Hekal
  • Patent number: 6992130
    Abstract: The invention provides a polyvinyl acetal having a degree of acetalization of from 45 to 80 mol %, which is obtained through acetalization of a polyvinyl alcohol that contains from 1 to 15 mol % of ?-olefin units and has a 1,2-glycol bond content of from 1 to 3 mol %, a degree of polymerization of from 100 to 2000 and a degree of hydrolysis of from 80.0 to 99.99 mol %. The polyvinyl acetal has good waterproofness and good compatibility with plasticizer. Having the advantages, it is favorable for interlayer films for laminated glass, binders for ceramic forming, binders for ink or paint, and coating liquids for thermally-developable photographic materials.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: January 31, 2006
    Assignee: Kuraray Co., Ltd.
    Inventors: Takeshi Kusudou, Yousuke Kumaki, Naoki Fujiwara
  • Patent number: 6984690
    Abstract: The present invention relates to high-molecular-weight crosslinked polyvinyl butyrals obtainable by crosslinking a polyvinyl butyral with benzofuranone and/or with at least one derivative of the same, as crosslinking reagent, to their use, and to a process for their preparation.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: January 10, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventor: Bernd Papenfuhs
  • Patent number: 6964993
    Abstract: A paper coating slip contains a polymer dispersed with polyvinyl alcohol as protective colloid in water (abbreviated to PVA-dispersed polymer).
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: November 15, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Harutyun Hanciogullari
  • Patent number: 6964990
    Abstract: A resin composition of an ethylene-vinyl alcohol copolymer adheres little to dies and ensures good long-run workability and self-purgeability and its shaped articles have good appearance with few voids and show diminished yellowing.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: November 15, 2005
    Assignee: Kuraray Co., Ltd.
    Inventors: Osamu Kazeto, Naokiyo Inomata, Naoyuki Himi
  • Patent number: 6951895
    Abstract: Disclosed is an absorbent composition comprising each of an acidic and a basic material, wherein the absorbent composition exhibits desirable absorbent properties. Specifically, the present invention relates to an absorbent composition comprising either an acidic water-swellable, water-insoluble polymer having a pKa between about 2 to about 12 or a basic water-swellable, water-insoluble polymer having a pKb between about 2 to about 12 and either a basic or an acidic second material. The absorbent composition has the ability to slowly absorb a large quantity of liquid, particularly while under an external pressure. The absorbent composition is useful in disposable absorbent products, such as those disposable absorbent products that are used to absorb bodily liquids.
    Type: Grant
    Filed: December 2, 1996
    Date of Patent: October 4, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jian Qin, Palani Raj Ramaswami Wallajapet
  • Patent number: 6946504
    Abstract: Aqueous formulation for enhancing flowability and setting properties of gypsum, slurries, comprising wax, polyvinyl-alcohol and a sulphonated melamine polycondensate are used for imparting water repellency to gypsum wall boards.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: September 20, 2005
    Assignee: Walker Industries Holding Limited
    Inventor: Laurence Anthony Sinnige
  • Patent number: 6924016
    Abstract: Disclosed is an assembly system for stationing a semiconductor wafer suitable for processing said wafer, said system comprising: (a) a holding block; (b) a semiconductor wafer; and (c) an aqueous adhesive composition interposed between the holding block and the semiconductor wafer. Also disclosed is a process for manufacturing a semiconductor wafer, comprising the steps of: (a) providing a holding block; (b) providing a semiconductor wafer; (c) coating either the holding block or one side of the semiconductor wafer with the foregoing aqueous adhesive composition; (d) contacting either one side of the semiconductor wafer to the coated holding block or the coated side of the semiconductor wafer to the holding block, such that the semiconductor wafer adheres to the coated holding block; (e) polishing the other side of the semiconductor wafer; and (f) removing the semiconductor wafer from the coated holding block.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: August 2, 2005
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Stanely F. Wanat, Robert R. Plass
  • Patent number: 6921790
    Abstract: The present invention is directed to a resin composition superior in barrier properties and also superior in flexibility, secondary processability and interlayer adhesiveness. The present invention is also directed to an environmentally friendly method for producing a resin composition, the method releasing no carboxylic acid such as acetic acid to the peripheral environment. The invention provides an EVOH resin composition (F) which has a content of an alkali metal salt (A), in terms of the alkali metal, of 0.1 to 20 ?mol/g and a content of a carboxyl acid or its salt (C), in terms of carboxylate radical, of 2 ?mol/g or less and which has an ethylene content of 5 to 60 mol % and a saponification degree of from 80 to 99 mol %. In addition, the invention provides a resin composition comprising the EVOH resin composition (F) and an EVOH having an ethylene content of 5 to 60 mol % and a degree of saponification of 99.2 to 100 mol %.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: July 26, 2005
    Assignee: Kuraray Co., Ltd.
    Inventors: Kenji Nakano, Naohiko Uchiumi, Kaoru Ikeda
  • Patent number: 6907911
    Abstract: The invention generally relates to thermoplastic blends having improved properties. Optionally, these blends may be dynamically vulcanized. More specifically, this invention is directed to a composition comprising a blend of chloromethylated(styrene-isobutylene) polymer and a thermoplastic resin selected from the group consisting of polyamides, polyesters, polycarbonates, polysulfones, polyacetals, polyacetones, acrylonitrile-butadiene styrene resins, polyphenylene oxide, polyphenylene sulfide, styrene-acrylonitrile resins, styrene-maleic anhydride resins, polyamides, aromatic polyketones, ethylene vinyl alcohol polymer and mixtures thereof. Tires and tire components such as air permeation prevention films comprising these compositions are also provided.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: June 21, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Hsien-Chang Wang
  • Patent number: 6894104
    Abstract: New anti-reflective or fill compositions having improved flow properties are provided. The compositions comprise a styrene-allyl alcohol polymer and preferably at least one other polymer (e.g., cellulosic polymers) in addition to the styrene-allyl alcohol polymer. The inventive compositions can be used to protect contact or via holes from degradation during subsequent etching in the dual damascene process. The inventive compositions can also be applied to substrates (e.g., silicon wafers) to form anti-reflective coating layers having high etch rates which minimize or prevent reflection during subsequent photoresist exposure and developing.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: May 17, 2005
    Assignee: Brewer Science Inc.
    Inventors: Gu Xu, Jimmy D. Meador, Mandar R. Bhave, Shreeram V. Deshpande, Kelly A. Nowak
  • Patent number: 6890975
    Abstract: A water-redispersible polymer powder based on protective colloid stabilized vinyl ester polymers for use in building adhesive compositions is provided. The vinyl ester polymers contain from 0.2 to 1.5% by weight, based on the overall weight of the vinyl ester polymers, or auxiliary monomer units derived from monomers having a higher water solubility than vinyl acetate.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: May 10, 2005
    Assignee: Wacker Polymer Systems GmbH & Co. KG
    Inventor: Hans-Peter Weitzel
  • Patent number: 6890976
    Abstract: An aqueous emulsion for imparting water repellency characteristics to gypsum products comprising: a) a hydrocarbon wax: b) a polyolefin-maleic anhydride graft polymer; and c) a polyvinyl alcohol composition comprising partially and/or fully hydrolyzed polyvinyl acetate. The emulsion may also contain other known ancillary components such as emulsifiers and stabilizers.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: May 10, 2005
    Assignee: Walker Industries Holdings Limited
    Inventor: Laurence Anthony Sinnige
  • Patent number: 6887942
    Abstract: A low softening temperature thermal conductive adhesive composition is made from a blend of liquid NBR in molecular weight of 300˜100,000 and ethylene vinyl acetate (EVA) to have a softening point of 38˜65° C. With proper addition of sub-micron or nano powder thermal conductive agents like aluminum oxide, zinc oxide, aluminum nitride, boron nitride, graphite, metal powder or nano clay, the adhesive can be made into a membrane with thickness of 0.01˜5 mm and thermal conductivity of 0.5˜5 W/m-K, and thermal conductive plate with thermal resistance of 0.005˜0.2° C.in2/W. The thermal conductive plate has softening point of 38˜65° C., preferably 45° C. to avoid liquidation during storage and transportation. Further application includes use as the sealant or thermal conductive interface in electronic components and heat dissipaters to reduce heat resistance and improve thermal conductive efficiency.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: May 3, 2005
    Assignee: Chung Shan Instruments Co., Ltd.
    Inventors: Chung-Yi Chien, Yu-Lung Chen
  • Patent number: 6881778
    Abstract: A polyvinyl alcohol copolymer latex composition comprises an intimate polymer composition obtained from 10% to 60% by weight of a substantially hydrolyzed low molecular weight polyvinyl alcohol (PVOH); 2% to 80% by weight of at least one diene; 2% to 80% by weight of at least one hydrophobic monomer other than a diene and optionally either up to 10% by weight of at least one hydrophilic ethylenically unsaturated acid monomer or up to 40% by weight of a cationic monomer. The copolymer latex composition can be prepared as an emulsion from an aqueous blend of the above listed monomers which are generally added at various stages during the polymerization and a free radical initiator, surfactants, and, if desirable, chain transfer agents. Up to 80% of the PVOH may be added after the monomers have been polymerized.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: April 19, 2005
    Assignee: OMNOVA Solutions Inc.
    Inventors: Nick G. Triantafillopoulos, Carla B. Dittman-McBain, I. John Westerman, Michael F. Richardson, William C. Floyd
  • Patent number: 6866936
    Abstract: A water-based coating composition suitable for preparing hydrophilic surfaces on various articles is provided which includes a supporting polymer having functional moieties capable of undergoing crosslinking reactions, said supporting polymer soluble in or emulsified in an aqueous based medium; and a hydrophilic polymer, said hydrophilic polymer associated with the supporting polymer. The composition is characterized in that, when crosslinked at the functional moieties, the supporting polymer forms a three-dimensional network which substantially minimizes disassociation of the hydrophilic polymer.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: March 15, 2005
    Assignee: Surface Solutions Laboratories, Inc.
    Inventor: Margaret P. Opolski
  • Patent number: 6843292
    Abstract: The invention generally relates to thermoplastic blends having improved properties. Optionally, these blends may be dynamically vulcanized. More specifically, this invention is directed to a composition comprising a blend of chloromethylated(styrene-isobutylene) polymer and a thermoplastic resin selected from the group consisting of polyamides, polyesters, polycarbonates, polysulfones, polyacetals, polyacetones, acrylonitrile-butadiene styrene resins, polyphenylene oxide, polyphenylene sulfide, styrene-acrylonitrile resins, styrene-maleic anhydride resins, polyamides, aromatic polyketones, ethylene vinyl alcohol polymer and mixtures thereof. Tires and tire components such as air permeation prevention films comprising these compositions are also provided.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: January 18, 2005
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Hsien-Chang Wang
  • Patent number: 6838516
    Abstract: The present invention relates to a water dispersible polyisocyanate composition comprising (a) an aliphatic polyisocyanate or a mixture of aliphatic polyisocyanates or a mixture of aliphatic polyisocyanates with other polyisocyanates; and (b) a reaction product of component (a) with a component selected from the group consisting of: (ii) a polyether diol or triol or a mixture thereof wherein a weight ratio of ethylene oxide (EO) to propylene oxide (PO) of the polyether diol and triol is greater than about 60:40, and the polyether diol has a molecular weight of about 300 to 1600 g/mole, and the polyether triol has a molecular weight of about 450 to 2400 g/mole; and (ii) a mixture of polyether monol and polyether polyol, wherein the polyether polyol is selected from the group consisting of polyether diol, triol and a mixture thereof wherein a weight ratio of EO to PO of the polyether monol, diol and triol is greater than about 60:40, and the polyether diol and triol have the molecular weights as defined abo
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: January 4, 2005
    Assignee: Great Eastern Resins Industrial Co., Ltd.
    Inventors: Shenghong A. Dai, Jui-Ming Chang, Tsai-Lung Chen, Will Yang
  • Patent number: 6833410
    Abstract: A method for making rotationally molded objects using resin blends. The resin blend comprises resin pellets and an amount of ground resin powder sufficient to yield rotomolded objects having desirable impact strength and other strength characteristics. Preferably, the resin blend comprises of from about 20% to about 50% by weight of ground resin powder. The resin pellets may optionally contain a reinforcing agent, and such pellets serve as a vehicle for effectively introducing desired reinforcing agents into the product being rotomolded. In addition, resin blends can be used to produce colored objects by rotational molding techniques.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: December 21, 2004
    Assignee: Chroma Corporation
    Inventor: Robert D. Swain
  • Patent number: 6815497
    Abstract: Disclosed are adhesive formulations as creping process aids for producing an absorbent creped cellulosic sheet having a high level of surface-perceived softness that comprises continuously forming a web of cellulosic papermaking fibers, adhering said web to a thermal drying means by means of adhesive compositions comprising polymers having at least one primary or secondary amine group in the backbone such as chitosan, plolyvinylamine, polyvinyl alcohol-vinyl amine and polyaminoamide in combination with crosslinking agents such as zirconium compounds having a valence of plus four including ammonium zirconium carbonate, zirconium acetylacetonate, zirconium acetate, zirconium carbonate, zirconium sulfate, zirconium phosphate, potassium zirconium carbonate, zirconium sodium phosphate and sodium zirconium tartrate and creping said treated web from said thermal drying means.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: November 9, 2004
    Assignee: Fort James Corporation
    Inventors: Phuong Van Luu, Cristian M. Neculescu, Dawn M. Mews
  • Publication number: 20040220322
    Abstract: The present invention relates to paint compositions having a water-based resin system having a colorant granule that does not dissolve therein. The resulting paint compositions produce unusual, but desirable, effects after the application of sufficient pressure to release a second colorant. Hence, the present invention includes methods for their use and manufacture.
    Type: Application
    Filed: February 5, 2004
    Publication date: November 4, 2004
    Inventors: Kim D. Gooding, Yvette M. Swanson, Frances A. Amy, Christina Short
  • Patent number: 6812281
    Abstract: Disclosed are adhesive formulations as creping process aids for producing an absorbent creped cellulosic sheet having a high level of surface-perceived softness that comprises continuously forming a web of cellulosic papermaking fibers, adhering said web to a thermal drying means by means of adhesive compositions comprising polymers having at least one primary or secondary amine group in the backbone such as chitosan, polyvinylamine, polyvinyl alcohol-vinyl amine and polyaminoamide in combination with crosslinking agents such as dialdehydes or zirconium compounds having a valence of plus four including ammonium zirconium carbonate, zirconium acetylacetonate, zirconium acetate, zirconium carbonate, zirconium sulfate, zirconium phosphate, potassium zirconium carbonate, zirconium sodium phosphate and sodium zirconium tartrate and creping said treated web from said thermal drying means.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: November 2, 2004
    Assignee: Fort James Corporation
    Inventors: Phuong Van Luu, Cristian M. Neculescu, Dawn M. Mews
  • Patent number: 6811253
    Abstract: A recording medium comprising a substrate coated with at least one ink receiving layer and at least one protective layer which comprises polymeric particles having film forming temperatures between 60 to 140° C., preferably between 100 to 120° C., and at least one binder. In the related printing method, the printed medium is heated to form a stable image protecting coating.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: November 2, 2004
    Assignees: ILFORD Imaging UK Limited, ILFORD Imaging Switzerland GmbH
    Inventors: Jeffrey Ronald King, Karen Taylor, Simon Richard John Leggett, Stefan Schüttel, Meinrad Schaer
  • Patent number: 6812270
    Abstract: Disclosed is a process of producing a highly homogeneous cellulose solution, in which a mixture of powdered cellulose with polyvinyl alcohol powder is fed in conjunction with concentrated liquid NMMO into a kneader or an extruder to produce the highly homogeneous cellulose solution, or into the kneader to produce a swollen cellulose/polyvinyl alcohol paste and the paste thus produced is moved into the extruder to produce the highly homogeneous cellulose solution. The cellulose solution is extruded through a nozzle into a cellulose fiber. The process is advantageous in that the highly homogeneous cellulose solution can be rapidly and inexpensively produced because the cellulose solution is produced without a vacuum distillation step or separate swelling step, and formation of fibrils is prevented, thereby cellulose fibers with excellent flexibility and strength are produced from the cellulose solution.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: November 2, 2004
    Assignee: Hyosung Corporation
    Inventors: Tae-jung Lee, Soo-myung Choi, Yun-hyuk Bang, Seok-jong Han
  • Publication number: 20040214941
    Abstract: A paper coating slip contains a polymer dispersed with polyvinyl alcohol as protective colloid in water (abbreviated to PVA-dispersed polymer).
    Type: Application
    Filed: May 19, 2004
    Publication date: October 28, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Reinhold J. Leyrer, Harutyun Hanciogullari
  • Patent number: 6808597
    Abstract: Methods for making creping adhesives and using them in the creping of cellulosic fiber webs. The creping adhesives are a combination of polyamine-epihalohydrin and poly(vinyl alcohol). The method comprises the preparation and application of the creping adhesives to attain strong adhesion of fiber webs onto a drying surface, and the creping of the fiber webs to obtain a soft, bulky tissue paper web.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: October 26, 2004
    Assignee: Hercules Incorporated
    Inventor: Anthony J. Allen
  • Patent number: 6803100
    Abstract: The invention relates to new rewettable adhesive systems containing colloidal dispersion mixtures obtained by copolymerization of at least one water-soluble monomer with at least one non-water-soluble comonomer in the presence of a micelle-forming emulsifier. The invention also relates to the use of the new adhesive systems.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: October 12, 2004
    Assignee: Celanese Emulsions GmbH
    Inventors: Helmut Hintz, Ivan Cabrera
  • Patent number: 6794466
    Abstract: The present invention elates to a vinyl acetate based polymer latex composition obtained by emulsion polymerization of: (a) polyvinyl alcohol, (c) a monomer mixture comprising vinyl acetate, and (d) optionally one or more additional co-monomer(s), in presence of (c) 0.0001-0.05 wt. % of a chain transfer agent, based on total monomer weight, said vinyl acetate based polymer latex composition having a weight average particle size ≧400 nm and a higher shear thinning factor than the vinyl acetate based polymer latex composition (a), (b) and (d) obtained in the absence of the chain transfer agent (c). According to one embodiment, emulsion polymerization is carried out in presence of 0.001 to 0.05 wt. % of a chain transfer agent selected from the group consisting of aldehydes and chain transfer agents having a similar chain transfer constant with regard to vinyl acetate as the monomer. According to another embodiment, emulsion polymerization is carried out in presence of 0.0001 to 0.01 wt.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: September 21, 2004
    Assignee: Air Products Polymers, L.P.
    Inventors: Helmut Zecha, Rudolf Weissgerber, Francis Petrocelli
  • Patent number: 6790883
    Abstract: An object of the invention is to provide a polishing pad having the excellent slurry retaining properties and the large removal rate and a composition for a polishing pad which can form such the polishing pad. A composition for polishing pad of the invention is comprising a water-insoluble matrix material containing a crosslinked polymer and a water-soluble particle dispersed in the water-insoluble matrix material. The elongation remaining after breaking is 100% or less when a test piece comprising the water-insoluble matrix material is broken at 80° C. according to JIS K 6251. A polishing pad of the invention is that at least a part of the polishing pad comprises the composition for polishing pad.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: September 14, 2004
    Assignee: JSR Corporation
    Inventors: Toshihiro Ogawa, Kou Hasegawa, Nobuo Kawahashi
  • Publication number: 20040167260
    Abstract: The present invention provides a binder composition comprising a low molecular weight polycarboxylic acid, such as maleic anhydride, and a low molecular weight poly alcohol, such as polyvinyl alcohol, that exhibits improved cure performance with reduced emissions without sacrificing the performance of the final product or complication the manufacturing process. The binder composition may also incorporate a cure catalyst or accelerant such as sodium hypophosphite.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 26, 2004
    Inventors: Liang Chen, William E. Downey, Kathleen M. Bullock, Michael T. Pellegrin, Yadi Delaviz, Kevin Guigley, Harry B. Cline
  • Patent number: 6780945
    Abstract: A process for polymerizing vinyl chloride or a monomer mixture containing vinyl chloride in an aqueous medium in a polymerization vessel fitted with a reflux condenser, characterized by starting to add (A) an anti-foam agent, and (B) a partially saponified polyvinyl alcohol with an average degree of polymerization of 100 to 500 and a saponification degree of 75 to 85 mole %, to a reaction mixture during the operation of said reflux condenser, and continuing the addition of (A) and (B) until recovery of unreacted monomers from said polymerization vessel is completed, thereby preventing the polymer slurry from foaming, rising, or scattering during polymerization or recovery of unreacted monomers.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: August 24, 2004
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Toshihiko Kawakubo, Tadashi Amano
  • Patent number: 6780903
    Abstract: The invention relates to a new process for preparing polymer dispersions. According to the invention, a mixture is first formed of a polymer component, a plasticizer, dispersion auxiliaries and water, the mixture is then heated to approximately 20 to 100° C. in order to form a paste-like composition, and the paste-like composition is dispersed in water. The dispersion obtained according to the invention can be used for coating paper or board, as a primer, as a component in adhesives, paint or lacquer, and it is also suited for the manufacture of cast films and for use as a binder in materials based on cellulosic fibers.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: August 24, 2004
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Soili Peltonen, Maija Elina Heikkilä, Hannu Mikkonen, Jouni Hamara
  • Patent number: 6777478
    Abstract: The adhesive material contains a radical-polymerizable compound, a curing agent, and a thermoplastic resin; gives a negative result of the Ames test; and has a PII, or skin irritation, value of 2 or less. In particular, all the starting ingredients should preferably give a negative result of the Ames test and have a PII, or skin irritation, value of 2 or less.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: August 17, 2004
    Assignee: Sony Chemicals Corporation
    Inventor: Tomoyuki Ishimatsu
  • Patent number: 6777464
    Abstract: A circuit-connecting material which is interposed between circuit electrodes facing each other and electrically connects the electrodes in the pressing direction by pressing the facing electrodes against each other; the circuit-connecting material comprising as essential components (1) a curing agent capable of generating free radicals upon heating, (2) hydroxyl-group-containing resin having a molecular weight of 10,000 or more and (3) a radical-polymerizable substance. Also provided are a circuit terminal connected structure and a circuit terminal connecting method which make use of such a material.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: August 17, 2004
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Itsuo Watanabe, Tohru Fujinawa, Motohiro Arifuku, Houko Kanazawa, Atsushi Kuwano
  • Publication number: 20040152825
    Abstract: A composition comprising the following components:
    Type: Application
    Filed: January 23, 2004
    Publication date: August 5, 2004
    Inventors: Kenji Yamamoto, Masahiko Ogawa, Tsutomu Nakajima
  • Patent number: 6767961
    Abstract: The present invention discloses water-soluble compositions comprising a blend of poly(ethylene oxide) and poly(vinyl alcohol) that have improved ductility over water-soluble compositions comprising poly(vinyl alcohol) alone. In one desirable embodiment of the present invention, the poly(ethylene oxide) component of the blend is grafted. Grafted poly(ethylene oxide) resins have improved processability and improved blend compatibility with poly(vinyl alcohol). Films comprising a melt blend of poly(vinyl alcohol) and grafted poly(ethylene oxide) have improved melt processability as well as other improved properties. Films comprising compositions of the present invention have improved ductility over films comprising poly(vinyl alcohol) alone while retaining much of the high strength and water solubility exhibited by such poly(vinyl alcohol) films.
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: July 27, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: James Hongxue Wang, David Michael Schertz