Patents by Inventor Irving Rosen

Irving Rosen 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).

  • Thermoplastic resins containing coumarone-indene resin or polyindene
    Patent number: 4326045
    Abstract: Certain physical properties, such as heat-distortion temperature and flexural modulus, of certain commercially available thermoplastic resins are improved by blending with polyindene or coumarone-indene resins.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: April 20, 1982
    Assignee: The Standard Oil Company
    Inventors: George S. Li, Irving Rosen
  • Blends of thermoplastic resins and polyindene or coumarone-indene
    Patent number: 4223107
    Abstract: Certain physical properties, such as heat-distortion temperature and flexural modulus, of certain commercially available thermoplastic resins are improved by blending with polyindene or coumarone-indene resins.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: September 16, 1980
    Assignee: Standard Oil Company
    Inventors: George S. Li, Irving Rosen
  • Thermoplastic resins with polyindene or coumarone-indene resin
    Patent number: 4162277
    Abstract: Certain physical properties, such as heat-distortion temperature and flexural modulus, of certain commercially available thermoplastic resins are improved by blending with polyindene or coumarone-indene resins.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: July 24, 1979
    Assignee: The Standard Oil Company
    Inventors: George S. Li, Irving Rosen
  • Copolymer blends
    Patent number: 4160001
    Abstract: Blends of a copolymer of methyl methacrylate and styrene with an acrylonitrile-styrene copolymer have improved optical, mechanical and gas barrier properties as well as improved processability.
    Type: Grant
    Filed: August 18, 1977
    Date of Patent: July 3, 1979
    Assignee: The Standard Oil Company
    Inventor: Irving Rosen
  • Process for preparing low-cost copolymers from acrylonitrile and crude indene
    Patent number: 4121807
    Abstract: Polymeric compositions having high heat-distortion temperatures which function as gas and vapor barrier materials which are composed of an olefinically unsaturated nitrile, such as acrylonitrile, and indene are produced by the copolymerization of said olefinically unsaturated nitrile and crude indene which can be derived from various sources.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: October 24, 1978
    Assignee: The Standard Oil Company
    Inventors: Gary W. Dirks, George S. Li, Irving Rosen
  • Thermoplastic resin blends containing polyindene or coumarone-indene resin
    Patent number: 4117040
    Abstract: Certain physical properties, such as heat-distortion temperature and flexural modulus, of certain commercially available thermoplastic resins are improved by blending with polyindene or coumarone-indene resins.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: September 26, 1978
    Assignee: The Standard Oil Company
    Inventors: George S. Li, Irving Rosen
  • Xylene-formaldehyde resin compositions and process
    Patent number: 4082728
    Abstract: Light colored, high molecular weight thermoplastic xylene-formaldehyde polymers are prepared by reaction of substantially equimolar amounts of xylene and formaldehyde in the presence of a strong acid catalyst by the exclusion of air from the reactor.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: April 4, 1978
    Assignee: The Standard Oil Company
    Inventors: Walid Y. Aziz, Lawrence E. Ball, Irving Rosen
  • Thermoplastic resin compositions comprising polyindene or coumarone-indene resin
    Patent number: 4066717
    Abstract: Certain physical properties, such as heat-distortion temperature and flexural modulus, of certain commercially available thermoplastic resins are improved by blending with polyindene or coumarone-indene resins.
    Type: Grant
    Filed: December 24, 1975
    Date of Patent: January 3, 1978
    Assignee: The Standard Oil Company
    Inventors: George S. Li, Irving Rosen