Patents by Inventor Cindy B. Shulman

Cindy B. Shulman 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: 5403892
    Abstract: A dynamically vulcanized thermoplastic composition is provided which comprises a polymer blend of (a) a thermoplastic olefinic resin, such as non-elastomeric ethylene vinyl acetate copolymer; (b) an elastomeric ethylene vinyl acetate copolymer having a relatively higher vinyl acetate content; and (c) a specified elastomeric copolymer, such as halobutyl rubber, EPDM, or a halogenated copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene. Halogenated polyethylene may also be incorporated in the composition. The dynamically vulcanized thermoplastic composition is suitable for adhesion to polyvinyl chloride.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: April 4, 1995
    Assignee: Advanced Elastomer Systems, L.P.
    Inventors: Robert C. Puydak, Cindy B. Shulman, Donald R. Hazelton
  • Patent number: 5110685
    Abstract: The invention relates to certain low friction abrasion resistant polymer coatings. The polymer coatings consist of thermoplastic materials based on blends of elastomers with high density polyethylene comprising a high molecular weight component. The appropriate balance of crystallinity, durability and flexibility can be achieved by selecting the proper amount of low, medium and high molecular weight high density polyethylene. The coating is particularly useful for weatherstripping material for automobile window channels.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: May 5, 1992
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Virginia R. Cross, Cindy B. Shulman
  • Patent number: 4857409
    Abstract: A composite film composition comprising a rubber containing core layer wherein the layer comprises about 50 to 85 wt % rubber and 15 to 40 wt % of a polyolefin and at least one polyolefin skin layer co-extruded onto said core layer. In a preferred embodiment, the core layer comprises about 55 to about 70 wt % PIB and about 30 to about 45 wt % of PP or RCPP having been co-extruded to be sandwiched between two polyolefin layers comprisng PP or RCPP.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: August 15, 1989
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Donald R. Hazelton, Cindy B. Shulman
  • Patent number: 4673620
    Abstract: Nonvulcanized, thermoplastic elastomeric compositions useful in high quality, low voltage insulation. The compositions comprise polyolefin plastics blended with a copolymer of ethylene and an unsaturated ester of a lower carboxylic acid, olefinic elastomer and mineral filler and/or carbon black filler, and, optionally, hydrocarbon oil. Preferably the filler is alumina trihydrate which results in a flame-retardant insulation useful in building and communication wire.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: June 16, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventors: Cindy B. Shulman, Lawrence Spenadel
  • Patent number: 4500681
    Abstract: Compositions of matter comprising a thermoplastic elastomeric blend of a polyolefin component, an isobutylene-backbone elastomer component, and a copolymer component of ethylene and an unsaturated ester of a lower carboxylic acid. Useful in the preparation of film, molded and extruded articles. The incorporation of an ethylene copolymer component, such as ethylene vinyl acetate, ethylene methyl acrylate, etc., results in compositions with the advantages of elastomer modified polyolefin blends, but which exhibit lower melt viscosity and improved processability.
    Type: Grant
    Filed: December 27, 1982
    Date of Patent: February 19, 1985
    Assignee: Exxon Research & Engineering Co.
    Inventor: Cindy B. Shulman