Patents by Inventor Russell Biss

Russell Biss 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).

  • Continuous, solvent-free process for making copolymers of maleic anhydride and C1?4 alkyl vinyl ether
    Patent number: 6451944
    Abstract: A continuous, solvent-free process for obtaining solvent-free, fine white powders of high molecular weight alternating copolymers of maleic anhydride and a C1-C4 alkyl vinyl ether, without odor or taste, having the molecular structure (A—B)n, where A is maleic anhydride, B is an alkyl vinyl ether and n is an integer indicative of the molecular weight of the copolymer, which comprises feeding alkyl vinyl ether as reactant and solvent in excess over the desired 1:1 mole ratio of A:B in the copolymer, molten maleic anhydride and a free radical initiator, continuously at predetermined feeding rates into a reactor heated at a reaction temperature of about 50° to 100° C.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: September 17, 2002
    Assignee: ISP Investments Inc.
    Inventors: Russell Biss, Jeffrey Cohen, John Zamora, Krystyna Plochocka, Jeffrey A. Lynn
  • Continuous, solvent-free process for making terpolymers of maleic anhydride, C1-4 alkyl vinyl ether and isobutylene
    Patent number: 6365691
    Abstract: A continuous, solvent-free process for obtaining solvent-free, fine white powders of high molecular weight alternating terpolymers of maleic anhydride, a C1-C4 alkyl vinyl ether and isobutylene, without odor or taste.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: April 2, 2002
    Assignee: ISP Investments Inc.
    Inventors: Russell Biss, Jeffrey Cohen, John Zamora, Krystyna Plochocka, Jeffrey A. Lynn
  • Continuous, solvent-free process for making copolymers of maleic anhydride and C1-4 alkyl vinyl ether
    Publication number: 20010053829
    Abstract: A continuous, solvent-free process for obtaining solvent-free, fine white powders of high molecular weight alternating copolymers of maleic anhydride and a C1-C4 alkyl vinyl ether, without odor or taste, having the molecular structure (A-B)n, where A is maleic anhydride, B is an alkyl vinyl ether and n is an integer indicative of the molecular weight of the copolymer, which comprises feeding alkyl vinyl ether as reactant and solvent in excess over the desired 1:1 mole ratio of A:B in the copolymer, molten maleic anhydride and a free radical initiator, continuously at predetermined feeding rates into a reactor heated at a reaction temperature of about 50° to 100° C.
    Type: Application
    Filed: May 18, 2001
    Publication date: December 20, 2001
    Applicant: ISP INVESTMENTS INC.
    Inventors: Russell Biss, Jeffrey Cohen, John Zamora, Krystyna Plochocka, Jeffrey A. Lynn