Patents Assigned to Walker Industries Holding Limited
  • AQUEOUS WAX EMULSIONS AND DISPERSIONS AND USES THEREOF
    Publication number: 20230356430
    Abstract: An aqueous wax emulsion or dispersion comprising, wax, water and an emulsifier wherein the emulsifier comprises purified kraft lignin and a water-soluble base. A process for preparing said aqueous wax dispersions and their use.
    Type: Application
    Filed: July 21, 2023
    Publication date: November 9, 2023
    Applicant: Walker Industries Holdings Limited
    Inventors: Niels Mathieu Barbara SMEETS, Laurence Anthony SINNIGE, Azadeh JOSHANI, Hyungseak KIM
  • Aqueous wax emulsions and dispersions and uses thereof
    Patent number: 11752660
    Abstract: An aqueous wax emulsion or dispersion comprising, wax, water and an emulsifier wherein the emulsifier comprises purified kraft lignin and a water-soluble base. A process for preparing said aqueous wax dispersions and their use.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: September 12, 2023
    Assignee: WALKER INDUSTRIES HOLDINGS LIMITED
    Inventors: Niels Mathieu Barbara Smeets, Laurence Anthony Sinnige, Azadeh Joshani, Hyungseak Kim
  • AQUEOUS WAX EMULSIONS AND DISPERSIONS AND USES THEREOF
    Publication number: 20210060814
    Abstract: An aqueous wax emulsion or dispersion comprising, wax, water and an emulsifier wherein the emulsifier comprises purified kraft lignin and a water-soluble base. A process for preparing said aqueous wax dispersions and their use.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 4, 2021
    Applicant: Walker Industries Holdings Limited
    Inventors: Niels Mathieu Barbara SMEETS, Laurence Anthony SINNIGE, Azadeh JOSHANI, Hyungseak KIM
  • Emulsions for fibreglass binder systems
    Patent number: 8968870
    Abstract: The present invention relates to an aqueous anti-dusting formulation for use in combination with a binder in the manufacture of fiber wool insulation, the formula comprising: a) oil; b) polyvinyl alcohol; and c) water. The invention further relates to a method for preparing a glass or mineral fiber product with the anti-dusting formulations and to products of the process.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: March 3, 2015
    Assignee: Walker Industries Holdings Limited
    Inventor: Laurence Anthony Sinnige
  • EMULSIONS FOR FIBREGLASS BINDER SYSTEMS
    Publication number: 20110190112
    Abstract: The present invention relates to an aqueous anti-dusting formulation for use in combination with a binder in the manufacture of fibre wool insulation, the formula comprising: a) oil; b) polyvinyl alcohol; and c) water. The invention further relates to a method for preparing a glass or mineral fibre product with the anti-dusting formulations and to products of the process.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 4, 2011
    Applicant: Walker Industries Holdings Limited
    Inventor: Laurence Anthony SINNIGE
  • Formulations containing polyvinyl alcohol and sulphonated melamine polycondensate for use in gypsum slurries
    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
  • Wax emulsion formulation and gypsum composition containing same
    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
  • Wax emulsion composition for imparting water repellency to gypsum
    Patent number: 5968237
    Abstract: A water-based wax emulsion formulation for imparting water repellent characteristics to gypsum wall boards comprising: (a) hydrocarbon wax; (b) an alkyl acid and/or alkyl ester; and (c) a polyvinyl alcohol composition comprising partially and/or fully hydrolyzed polyvinyl acetate. The formulation may also contains other ancillary components such as emulsifiers and stabilizers.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: October 19, 1999
    Assignee: Walker Industries Holdings Limited
    Inventor: Laurence Anthony Sinnige