Patents Examined by E. Buffalow
  • Patent number: 4476190
    Abstract: The adhesive coating of a water wettable prepasted wallcovering is formed of a blend of water insoluble but water swellable anionic polymer particles and water insoluble but water swellable cationic polymer particles. The coating may be applied from a dispersion of the particles in volatile organic liquid.
    Type: Grant
    Filed: October 8, 1982
    Date of Patent: October 9, 1984
    Assignee: Allied Colloids Limited
    Inventors: John B. Clarke, John F. Firth