Patents by Inventor Herbert R. Gillis, Jr.

Herbert R. Gillis, Jr. 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).

  • Isocyanate compositions obtained from reaction of isocyanates with blocked polamines
    Patent number: 4816600
    Abstract: Modified organic isocyanate composition containing urea and/or biuret groups and/or salts of these groups, obtained from the reaction of a blocked polyamine composition and an unblocked isocyanate composition.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: March 28, 1989
    Assignee: ICI Americas Inc.
    Inventor: Herbert R. Gillis, Jr.
  • Polyureas prepared from a mixture of polyamines and polyisocyanate
    Patent number: 4798862
    Abstract: Polyureas are prepared from a system of (A) a polyisocyanate; and (B) a mixture of polyamines containing (i) from 60 to 25 percent by weight of the mixture of an aromatic polyamine; and (ii) from 40 to 75 percent by weight of the mixture of an aliphatic polyamine.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: January 17, 1989
    Assignee: ICI Americas Inc.
    Inventor: Herbert R. Gillis, Jr.
  • Reaction injection molding compositions
    Patent number: 4794129
    Abstract: Polymers having substituted urea groups, and molded objects therefrom, can be made by reacting, in a reaction injection molding (RIM) process, a composition comprising (A) a polyisocyanate and (B) a mixture comprising an imino functional resin and a chain extender. The chain extender may also be imino functional.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: December 27, 1988
    Assignees: ICI Americas Inc., Imperial Chemical Industries PLC
    Inventors: Herbert R. Gillis, Jr., Malcolm P. Hannaby