Patents by Inventor Karen Tisha Constable

Karen Tisha Constable 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).

  • FAST-CURING MODIFIED SILOXANE COMPOSITIONS
    Publication number: 20090048394
    Abstract: Fast-curing modified siloxane compositions comprise; (1) an alkoxy- or silanol-functional silicone intermediate, (2) at least one amine reactive ingredient selected from the group consisting of acetoacetate-functional ingredients, acrylate-functional ingredients, and mixtures thereof, (3) an epoxy-functional ingredient, (4) a curing agent selected from the group consisting of amines, aminosilanes, ketimines, aldimines and mixtures thereof, and (5) water. Other ingredients useful in forming fast-curing modified siloxane compositions of this invention include silanes, organometallic catalysts, solvents, pigments, fillers and modifying agents. The above-identified ingredients are combined and reacted to form a fully cured protective film comprising a cross-linked enamine polysiloxane and/or acrylate polysiloxane chemical structure in a reduced amount of time when compared to conventional epoxy siloxane compositions.
    Type: Application
    Filed: October 30, 2008
    Publication date: February 19, 2009
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Louie Herman Gommans, Norman R. Mowrer, Haruji Sakugawa, Michael Norman Bavin, Shu Yi Chu, Karen Tisha Constable
  • Fast-curing modified siloxane compositions
    Patent number: 7459515
    Abstract: Fast-curing modified siloxane compositions comprise; (1) an alkoxy- or silanol-functional silicone intermediate, (2) at least one amine reactive ingredient selected from the group consisting of acetoacetate-functional ingredients, acrylate-functional ingredients, and mixtures thereof, (3) an epoxy-functional ingredient, (4) a curing agent selected from the group consisting of amines, aminosilanes, ketimines, aldimines and mixtures thereof, and (5) water. Other ingredients useful in forming fast-curing modified siloxane compositions of this invention include silanes, organometallic catalysts, solvents, pigments, fillers and modifying agents. The above-identified ingredients are combined and reacted to form a fully cured protective film comprising a cross-linked enamine polysiloxane and/or acrylate polysiloxane chemical structure in a reduced amount of time when compared to conventional epoxy siloxane compositions.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: December 2, 2008
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Louie Herman Gommans, Norman R. Mowrer, Haruji Sakugawa, Michael Norman Bavin, Shu Yi Chu, Karen Tisha Constable