Patents by Inventor Richard M. Kopchik

Richard M. Kopchik 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).

  • Toughened polar thermoplastics
    Patent number: 5625001
    Abstract: Acrylic impact modifiers for polar thermoplastics such as poly(methyl methacrylate), polyamides, and poly(vinyl chloride) are prepared from emulsion polymer particles with hard methacrylate-rich domains in a continuous polyacrylate network.
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: April 29, 1997
    Assignee: Rohm and Haas Company
    Inventors: Samuel J. Makower, Richard M. Kopchik, Wen-Long Liu, Alan D. Stein
  • High-surface-area compositions
    Patent number: 5137926
    Abstract: Polyaromatic fibers or microbeads which are swollen with solvent and crosslinked while swollen in such a way that the expanded, or macronet, structure of the swollen fiber or microbead is stabilized and retained even after drying exhibit high surface area and significant adsorptive capacity.
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: August 11, 1992
    Assignee: Rohm and Haas Company
    Inventors: Stephen G. Maroldo, Richard M. Kopchik, Eric J. Langenmayr
  • High-surface-area fiber
    Patent number: 5037857
    Abstract: Polyaromatic fibers or microbeads which are swollen with solvent and crosslinked while swollen in such a way that the expanded, or macronet, structure of the swollen fiber or microbead is stabilized and retained even after drying exhibit high surface area and significant adsorptive capacity.
    Type: Grant
    Filed: August 28, 1989
    Date of Patent: August 6, 1991
    Assignee: Rohm and Haas Company
    Inventors: Stephen G. Maroldo, Richard M. Kopchik, Eric J. Langenmayr
  • Thermoplastic non-crosslinked polymers, imide polymers, and process for preparation
    Patent number: 4742123
    Abstract: Thermoplastic, non-crosslinked polymer compositions having glutaric anhydride units of the formula: ##STR1## wherein R represents CH.sub.3 or H, process for imidizing said compositions, the resultant imide polymers which are free of methyl imide units, and process of devolatilizing an acrylic or methacrylic acid-containing polymer in an extruder to the corresponding anhydride, and then introducing a reactant selected from the group consisting of ammonia, ammonia generators, primary amine, and primary amine generators.
    Type: Grant
    Filed: December 11, 1986
    Date of Patent: May 3, 1988
    Assignee: Rohm and Haas Co.
    Inventor: Richard M. Kopchik
  • Blends of imide polymers and vinyl chloride polymers
    Patent number: 4255322
    Abstract: Disclosed herein are blends of imide containing polymers and vinyl chloride polymers and copolymers.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: March 10, 1981
    Assignee: Rohm and Haas Company
    Inventor: Richard M. Kopchik
  • Imidized acrylic polymers
    Patent number: 4246374
    Abstract: Polymers containing imide units and a process of imidizing acrylic polymers to any desired degree of imidization without the use of added water or solvent.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: January 20, 1981
    Assignee: Rohm and Haas Company
    Inventor: Richard M. Kopchik