Patents Assigned to Waitomo Industrial Investments Ltd.
  • Patent number: 5173110
    Abstract: An antifouling coating composition useful for coating fish netting, boat hulls, lumber, roof shingles and the like to prevent the growth of algae. The composition comprises a solution of an epoxy resin containing a dialkyldimethyl ammonium compound or an alkylbenzylmethyl ammonium compound or combinations thereof. The invention also relates to articles coated with the composition to prevent the formation of algae thereon.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: December 22, 1992
    Assignee: Waitomo Industrial Investments Ltd.
    Inventor: Pavel Stovicek
  • Patent number: 5096488
    Abstract: An antifouling coating composition useful for coating fish netting, boat hulls, lumber, roof shingles and the like to prevent the growth of algae or fungi. The composition comprises a vinyl polymer or copolymer emulsion containing a dialkyldimethyl ammonium compound with or without an alkylbenzyldimethyl ammonium compound. The preparation of the composition must be done with care in order to prevent the added quaternary ammonium compound from destabilizing the emulsion polymer. The invention also relates to articles coated with the composition to prevent the formation of algae and fungi thereon.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: March 17, 1992
    Assignee: Waitomo Industrial Investments Ltd.
    Inventor: Pavel Stovicek
  • Patent number: 4990547
    Abstract: An antifouling coating composition useful for coating fish netting, boat hulls, lumber, roof shingles and the like to prevent the growth of algae or fungi. The composition comprises a vinyl polymer or copolymer emulsion containing a dialkyldimethyl ammonium compound with or without an alkylbenzyldimethyl ammonium compound. The preparation of the composition must be done with care in order to prevent the added quaternary ammonium compound from destabilizing the emulsition polymer. The invention also relates to articles coated with the composition to prevent the formation of algae or fungi thereon.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: February 5, 1991
    Assignee: Waitomo Industrial Investments Ltd.
    Inventor: Pavel Stovicek
  • Patent number: 4866106
    Abstract: An antifouling coating composition comprising a settable resin and a non-metallic algicide that does not react with the resin. The composition can be applied to flexible and rigid substrates and does not contain heavy metals.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: September 12, 1989
    Assignee: Waitomo Industrial Investments Ltd.
    Inventors: Scott P. W. Pellow, Barry S. Larkman, Paul Stovicek