Patents by Inventor Karen Elsbury

Karen Elsbury has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7544733
    Abstract: Aqueous coating compositions are described where the binder includes an anionically stabilized polymeric dispersion. The monomers used to prepare the dispersion are acrylic acid and methacrylic acid as a carboxylic monomer and styrene, alpha methyl styrene or vinyl toluene as a hydrophobic high Tg aromatic monomer and an alkyl acrylate ester as a low Tg monomer. The relative weight proportions of the monomers are required to satisfy a formula. Blends of high and low Tg dispersions are also described. Paints formulated with the binders exhibit an excellent balance of stain resistance, tint strength and viscosity stability.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: June 9, 2009
    Assignee: Orica Australia Pty Ltd.
    Inventors: Michelle Carey, Karen Elsbury, Patrick Houlihan, Bruce Leary, Lisa Madigan, Thamala Weerasinghe, Chantel Marise, Susan George
  • Publication number: 20060100358
    Abstract: Aqueous coating compositions are described where the binder includes an anionically stabilized polymeric dispersion. The monomers used to prepare the dispersion are acrylic acid and methacrylic acid as a carboxylic monomer and styrene, alpha methyl styrene or vinyl toluene as a hydrophobic high Tg aromatic monomer and an alkyl acrylate ester as a low Tg monomer. The relative weight proportions of the monomers are required to satisfy a formula. Blends of high and low Tg dispersions are also described. Paints formulated with the binders exhibit an excellent balance of stain resistance, tint strength and viscosity stability.
    Type: Application
    Filed: December 19, 2005
    Publication date: May 11, 2006
    Inventors: Michelle Carey, Karen Elsbury, Patrick Houlihan, Bruce Leary, Lisa Madigan, Thamala Weerasinghe, Chantel Marise, Susan George
  • Publication number: 20040254287
    Abstract: Aqueous coating compositions are described where the binder includes an anionically stabilised addition polymerised polymeric dispersion. The monomers used to prepare the dispersion are acrylic acid and methacrylic acid as a carboxylic monomer and styrene, alpha methyl styrene or vinyl toluene as a hydrophobic high Tg aromatic monomer and an alkyl acrylate ester as a low Tg monomer. The relative weight proportions of the monomers are required to satisfy a formula. Blends of high and low Tg dispersions are also described. Paints formulated with the binders exhibit an excellent balance of stain resistance, tint strength and viscosity stability.
    Type: Application
    Filed: August 27, 2001
    Publication date: December 16, 2004
    Applicant: Orica Australia Pty Ltd.
    Inventors: Michelle Carey, Karen Elsbury, Patrick Houlihan, Bruce Leary, Lisa Madigan, Thamala Weerasinghe, Chantel Marise, Susan George
  • Patent number: 6420474
    Abstract: Aqueous coating composition are described wherein the binder includes an anionically stabilized addition polymerized dispersion of a polymer. The monomers used to prepare the dispersion are acrylic cid and methyacrylic acid, as carboxylic monomers and styrene, alpha-methyl styrene or vinyl toluene as a hydrophobic high Tg aromatic monomer. Acrylate ester is used as a low Tg monomer. The relative weight proportions of the monomers are required to satisfy the designated formula. Blends of high and low Tg dispersions are also provided. Pains formulated with the binders of present invention exhibit excellent balance of stain resistance, tint strength and viscosity stability.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: July 16, 2002
    Assignee: Orica Australia Pty Ltd
    Inventors: Michelle Carey, Karen Elsbury, Patrick Houlihan, Bruce Leary, Lisa Madigan, Thamala Weerasinghe, Chantel Marise, Susan George