Patents by Inventor Ramachandran P. Subrayan

Ramachandran P. Subrayan 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).

  • Clearcoat compositions containing phenolic ester compounds
    Patent number: 6103826
    Abstract: Clearcoat compositions using a phenolic ester compound are described. The phenolic ester compound is selected from the group consisting of a phenolic ester alcohol, a phenolic urethane, a phenolic blocked isocyanate, and mixtures thereof.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: August 15, 2000
    Assignee: Eastern Michigan University
    Inventors: Frank N. Jones, Vijay Swarup, Albert I. Yezrielev, Ramachandran P. Subrayan
  • Polymeric vehicles which include a polyol, a phenolic ester alcohol and isocyanate compound
    Patent number: 6087464
    Abstract: The present invention is directed to a polymeric vehicle, a formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a polyol, an isocyanate compound and a phenolic ester alcohol having at least one aliphatic hydroxyl group and at least one phenolic hydroxyl group.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: July 11, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Vijay Swarup, Frank N. Jones, Albert I. Yezrielev, Ramachandran P. Subrayan
  • Polymeric vehicles which include a phenol blocked isocyanate having aliphatic hydroxyl fucntionality
    Patent number: 6051674
    Abstract: The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a phenol blocked isocyanate having reactive aliphatic hydroxyl groups. The phenol blocked isocyanate may be made from a phenolic ester alcohol having at least one aliphatic hydroxyl group and one phenolic hydroxyl group.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: April 18, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Albert I. Yezrielev, Frank N. Jones, Ramachandran P. Subrayan, Vijay Swarup
  • Water-borne polymeric vehicle for coating compositions containing an amine or ammonium salt of phenolic ester alcohols
    Patent number: 6005135
    Abstract: Water-borne polymeric vehicles are described where the polymeric vehicle includes the amine or ammonium salt of a phenolic ester alcohol.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: December 21, 1999
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Frank N. Jones, Ramachandran P. Subrayan
  • Polymeric vehicles which include a phenolic urethane reactive diluent
    Patent number: 5973072
    Abstract: The present invention is directed to a polymeric vehicle, the formulated coating composition and a coating binder made from the polymeric vehicle and a method for making the polymeric vehicle where the polymeric vehicle includes a phenolic urethane reactive diluent. The phenolic urethane reactive diluent may be made from a phenolic ester alcohol having at least one aliphatic hydroxyl group.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 26, 1999
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Frank N. Jones, Vijay Swarup, Ramachandran P. Subrayan, Suru Zhang