Patents by Inventor Bruce H. Potts

Bruce H. Potts 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).

  • Publication number: 20210102041
    Abstract: Polyol premixes are described that are suitable for use in the preparation of polyurethane foam-forming reaction mixtures. These foam-forming reaction mixtures can produce closed-celled polyurethane foams exhibit a low level of water absorption. Also described are various uses of such reaction mixtures, including injecting the reaction mixture beneath at least a portion of an earth-supported structure and allowing the polyurethane foam-forming reaction mixture to react and form a closed-celled, rigid polyurethane foam beneath the earth-supported structure.
    Type: Application
    Filed: October 1, 2020
    Publication date: April 8, 2021
    Inventors: Stephen J. Harasin, Bruce H. Potts, Kenneth R. Riddle
  • Patent number: 6765080
    Abstract: This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having an NCO group content of about 5 to about 30%, with an isocyanate-reactive component comprising a high molecular weight amine-terminated polyether polyol, an aromatic diamine chain extender, and, optionally, a chain extender or crosslinker selected from the group consisting of aliphatic amine terminated polyether polyols and aliphatic hydroxyl terminated polyether polyols, optionally, in the presence of an internal mold release agent, a surfactant and a filler.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: July 20, 2004
    Assignee: Bayer Corporation
    Inventors: Michael S. Super, David D. Steppan, William E. Slack, Bruce H. Potts, Michael F. Hurley
  • Publication number: 20030229195
    Abstract: This invention relates to high performance RIM (reaction injection molded) poly(urethane)urea elastomers, and to a process for their production. These elastomers comprise the reaction product of an allophanate-modified diphenylmethane diisocyanate prepolymer having an NCO group content of about 5 to about 30%, with an isocyanate-reactive component comprising a high molecular weight amine-terminated polyether polyol, an aromatic diamine chain extender, and, optionally, a chain extender or crosslinker selected from the group consisting of aliphatic amine terminated polyether polyols and aliphatic hydroxyl terminated polyether polyols, optionally, in the presence of an internal mold release agent, a surfactant and a filler.
    Type: Application
    Filed: June 6, 2002
    Publication date: December 11, 2003
    Inventors: Michael S. Super, David D. Steppan, William E. Slack, Bruce H. Potts, Michael F. Hurley
  • Patent number: 5470935
    Abstract: This invention relates to a process for preparing polyurethane elastomers comprising reacting in an open mold at an isocyanate index of about 90 to about 110(a) an isocyanate prepolymer having an isocyanate content of about 2 to about 15% by weight and having a molecular weight of from about 800 to about 5000, wherein said isocyanate prepolymer is a reaction product of(i) at least one organic polyisocyanate with(ii) at least one isocyanate-reactive compound having at least two isocyanate-reactive groups and having a molecular weight of from about 250 to about 4000;with(b) 2-methyl-1,3-propanediol as chain extender, optionally in admixture with up to about 10 percent by weight of a different chain extender having two isocyanate-reactive hydrogen atoms and having a molecular weight of from 32 to about 250;optionally in the presence of(c) one or more catalysts and/or other auxiliaries or additives.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: November 28, 1995
    Assignee: Bayer Corporation
    Inventors: Robson M. Mafoti, Bruce H. Potts