Patents by Inventor Robert M. Hunia

Robert M. Hunia 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).

  • UV resistant, abrasion resistant coatings
    Patent number: 5199979
    Abstract: An ultraviolet radiation resistant coating is disclosed comprising a hydroxy-containing organic UV absorbing compound such as hydroxybenzotriazole which comprises hydrophilic moieties such as ethoxylate or propoxylate so that the compound is miscible and reactive with an inorganic oxide matrix formed by hydrolysis and condensation of an alkoxysilane and/or other metal alkoxide.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: April 6, 1993
    Assignee: PPG Industries, Inc.
    Inventors: Shaow B. Lin, Chia-Cheng Lin, Robert M. Hunia, Gary J. Marietti
  • Siloxane organic hybrid polymers
    Patent number: 5115023
    Abstract: Siloxane organic hybrid polymers and a method of making them by condensation polymerization reaction of organoalkoxysilane in the presence of organic film-forming polymers are disclosed.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: May 19, 1992
    Assignee: PPG Industries, Inc.
    Inventors: John D. Basil, Chia-Cheng Lin, Robert M. Hunia
  • Ion-exchanged abrasion resistant coatings
    Patent number: 5035745
    Abstract: An abrasion resistant and ultraviolet radiation resistant coating is disclosed comprising an inorganic oxide matrix formed by the hydrolysis and condensation of an alkoxysilane and/or other metal alkoxide, further comprising cerium oxide for ultraviolet radiation resistant and/or silica for improved abrasion resistance. A partially hydrolyzed silane sol containing colloidal cerium oxide is ion-exchange with an anion exchange resin in one embodiment. In another a partially hydrolyzed silane sol containing colloidal silica is ion-exchanged to remove sodium ions prior to adding the colloidal ceria resulting in improved properties in the coating composition and resultant coating.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: July 30, 1991
    Assignee: PPG Industries, Inc.
    Inventors: Chia-Cheng Lin, John D. Basil, Robert M. Hunia
  • Optically transparent UV-protective coatings
    Patent number: 4799963
    Abstract: An ultraviolet radiation resistant coating is disclosed comprising cerium oxide in an inorganic oxide matrix formed by the hydrolysis and condensation of an alkoxysilane and/or other metal alkoxide.
    Type: Grant
    Filed: October 3, 1986
    Date of Patent: January 24, 1989
    Assignee: PPG Industries, Inc.
    Inventors: John D. Basil, Chia-Cheng Lin, Robert M. Hunia