Patents by Inventor Gregory L. Menovcik

Gregory L. Menovcik 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).

  • Patent number: 5827931
    Abstract: Polyurethane polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a mixture comprising a polyol having at least one pendant carbamate group and a polyisocyanate to form a polyurethane having pendant carbamate groups, and(b) optionally, capping the polyurethane from (b) with an active hydrogen-containing capping agent.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: October 27, 1998
    Assignee: BASF Corporation
    Inventors: Gregory L. Menovcik, Walter H. Ohrbom
  • Patent number: 5726274
    Abstract: Polyurethane polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a mixture comprising a polyol having at least one pendant carbamate group and a polyisocyanate to form a polyurethane having pendant carbamate groups, and(b) optionally, capping the polyurethane from (b) with an active hydrogen-containing capping agent.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: March 10, 1998
    Assignee: BASF Corporation
    Inventors: Gregory L. Menovcik, Walter H. Ohrbom
  • Patent number: 5723552
    Abstract: Polyurethane polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a mixture comprising a polyol having at least one pendant carbamate group and a polyisocyanate to form a polyurethane having pendant carbamate groups, and(b) optionally, capping the polyurethane from (b) with an active hydrogen-containing capping agent.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: March 3, 1998
    Assignee: BASF Corporation
    Inventors: Gregory L. Menovcik, Walter H. Ohrbom
  • Patent number: 5659003
    Abstract: Polyurethane polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a mixture comprising a polyol having at least one pendant carbamate group and a polyisocyanate to form a polyurethane having pendant carbamate groups, and(b) optionally, capping the polyurethane from (b) with an active hydrogen-containing capping agent.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: August 19, 1997
    Assignee: BASF Corporation
    Inventors: Gregory L. Menovcik, Walter H. Ohrbom
  • Patent number: 5532061
    Abstract: Polyester polymers having pendant carbamate groups are disclosed. The polymers are prepared by reacting a polyol having at least one pendant carbamate group with a polyacid to form a polyester having pendant carbamate groups.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: July 2, 1996
    Assignee: BASF Corporation
    Inventors: Gregory L. Menovcik, Walter H. Ohrbom
  • Patent number: 5508379
    Abstract: Polyester polymers having pendant carbamate groups are disclosed. The polymers are prepared by reacting:(a) reacting a hydroxyalkyl cyclic carbonate compound with a compound having at least one cyclic anhydride group to form a half-ester acid comprising a cyclic carbonate group,(b) reacting the cyclic carbonate group on the half-ester from step (a) with ammonia, ammonium hydroxide, or a primary amine to ring open the cyclic carbonate and form a compound comprising an acid group, a hydroxyl group, and a pendant carbamate group, and(c) reacting a mixture comprising the compound from step (b) and optionally comprising a polyol or a polyacid or both to form the polyester having pendant carbamate groups.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: April 16, 1996
    Assignee: BASF Corporation
    Inventors: Gregory L. Menovcik, Walter H. Ohrbom
  • Patent number: 5475064
    Abstract: Polyester polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a hydroxyalkyl cyclic carbonate with ammonia, ammonium hydroxide, or a primary amine to form a dihydric alcohol having a carbamate group appended thereto,(b) reacting the dihydric alcohol from (a) and a cyclic anhydride to form a half-ester diacid having a carbamate group appended thereto, and(c) reacting a mixture comprising the half-ester diacid from step (b) and a polyol to form a polyester having carbamate groups appended thereto.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 12, 1995
    Assignee: BASF Corporation
    Inventors: Gregory L. Menovcik, Walter H. Ohrbom
  • Patent number: 5451656
    Abstract: Polyester polymers having pendant carbamate groups are disclosed. The polymers are prepared by:(a) reacting a hydroxyalkyl cyclic carbonate with ammonia, ammonium hydroxide, or a primary amine to form a dihydric alcohol having a carbamate group appended thereto,(b) reacting the dihydric alcohol from (a) and a cyclic anhydride to form a half-ester diacid having a carbamate group appended thereto, and(c) reacting a mixture comprising the half-ester diacid from step (b) and a polyol to form a polyester having carbamate groups appended thereto.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 19, 1995
    Assignee: BASF Corporation
    Inventors: Gregory L. Menovcik, Walter H. Ohrbom