Patents by Inventor Lionel R. Stebbins

Lionel R. Stebbins 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).

  • Functionalized ethylene oxide antistatic agents for ABS/SMA blends
    Patent number: 5346959
    Abstract: An antistatic agent for thermoplastic polymers is provided wherein the antistatic agent is comprised of a functionalized alkylene oxide polymer and optionally a minor amount of an alkali or alkaline earth metal salt capable of complexing with the functionalized alkylene oxide polymer and wherein the thermoplastic polymers include styrenic polymers such as ABS; blends of an ABS copolymer and a styrene-maleic anhydride copolymer; or nylon 6.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: September 13, 1994
    Assignee: Monsanto Company
    Inventors: Goman (Gomez) Peter M., Kishore Udipi, Lionel R. Stebbins
  • Lactam-lactone copolymer
    Patent number: 5200498
    Abstract: Lactam-lactone copolymers are provided that range in properties from plastic to elastomer which are formed by reacting components of a polymerizable composition comprising: a lactam monomer; a lactone monomer; a C.sub.3 to C.sub.12 lactam magnesium halide catalyst; and an initiator.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: April 6, 1993
    Assignee: Monsanto Company
    Inventors: Kishore Udipi, Lionel R. Stebbins
  • Molding compositions of polyvinylbutyral blend
    Patent number: 5130370
    Abstract: A melt blended thermoplastic molding composition consisting essentially of, on a weight basis: (A) 40 to 70 parts plasticized polyvinyl butyral; (B) 60 to 30 parts poly(methylmethacrylate); (C) 0 to 15 parts filler; (D) 0 to 30 parts elastomeric graft polymer; and 0 to 30 parts thermoplastic polyurethane; provided that at least 10 parts of (D) or (E) or mixtures of (D) and (E) is present; and the sum of (A)+(B)+(C)+(D)+(E) is always 100.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: July 14, 1992
    Assignee: Monsanto Company
    Inventors: Kishore Udipi, Lionel R. Stebbins