Patents by Inventor Robert J. Zeitlin

Robert J. Zeitlin 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).

  • Electrical cables
    Patent number: 4675471
    Abstract: An improved electrical cable construction is provided wherein the metallic screen is coated with a protective coating which comprises a layer of a polymer selected for its properties of high flexural modulus, high tensile strength and high melting point and an adhesive layer comprising a random, block or graft copolymer of an olefin and a polymerizable, ethylenically unsaturated carboxylic acid, acid anhydride or derivative. Optionally, the adhesive layer may comprise a blend of the copolymer and a polyolefin.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: June 23, 1987
    Assignee: Norchem, Inc.
    Inventors: Mitsuzo Shida, John Machonis, Jr., Robert J. Zeitlin
  • Method of making a composite structure
    Patent number: 4486469
    Abstract: Compositions of matter having among other desirable characteristics strong adhesive properties to various substrates, these compositions comprising blends of a graft copolymer of a high density polyethylene and at least one unsaturated fused ring carboxylic acid anhydride blended with a polyethylene resin of one or more homopolymers of ethylene, copolymers of ethylene and alpha-olefin, ethylene-ester copolymers and one or more elastomers such as homopolymers of isobutylene, copolymers of isobutylene with isoprene, chlorinated copolymers of isobutylene and isoprene, homopolymers of isoprene, copolymers of butadiene and styrene, block copolymers of dienes and styrene where the diene is butadiene or isoprene, homopolymers of butadiene, homopolymers of chloroprene, and copolymers of acrylonitrile and butadiene.
    Type: Grant
    Filed: October 7, 1983
    Date of Patent: December 4, 1984
    Assignee: Chemplex Company
    Inventors: John Machonis, Jr., Seymour Schmukler, Robert J. Zeitlin, Mitsuzo Shida
  • Composite structure
    Patent number: 4423117
    Abstract: Compositions of matter having among other desirable characteristics strong adhesive properties to various substrates, these compositions comprising blends of a graft copolymer of a high density polyethylene and at least one unsaturated fused ring carboxylic acid anhydride blended with a polyethylene resin of one or more homopolymers of ethylene, copolymers of ethylene and alpha-olefin, ethylene-ester copolymers and one or more elastomers such as homopolymers of isobutylene, copolymers of isobutylene with isoprene, chlorinated copolymers of isobutylene and isoprene, homopolymers of isoprene, copolymers of butadiene and styrene, block copolymers of dienes and styrene where the diene is butadiene or isoprene, homopolymers of butadiene, homopolymers of chloroprene, and copolymers of acrylonitrile and butadiene.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: December 27, 1983
    Assignee: Chemplex Company
    Inventors: John Machonis, Jr., Seymour Schmukler, Robert J. Zeitlin, Mitsuzo Shida
  • Adhesive blends of elastomer, polyolefin, and graft of polyethylene with unsaturated fused ring anhydrides
    Patent number: 4298712
    Abstract: Compositions of matter having among other desirable characteristics strong adhesive properties to various substrates, these compositions comprising blends of a graft copolymer of a high density polyethylene and at least one unsaturated fused ring carboxylic acid anhydride blended with a polyethylene resin of one or more hompolymers of ethylene, copolymers of ethylene and alpha-olefin, ethylene-ester copolymers and one or more elastomers such as homopolymers of isobutylene, copolymers of isobutylene with isoprene, chlorinated copolymers of isobutylene and isoprene, homopolymers of isoprene, copolymers of butadiene and styrene, block copolymers of dienes and styrene where the diene is butadiene or isoprene, homopolymers of butadiene, homopolymers of chloroprene, and copolymers of acrylonitrile and butadiene.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: November 3, 1981
    Assignee: Chemplex Company
    Inventors: John Machonis, Jr., Seymour Schmukler, Robert J. Zeitlin, Mitsuzo Shida
  • Adhesive blends
    Patent number: 4087587
    Abstract: Compositions of matter having among other desirable characteristics strong adhesive properties to various substrates, these compositions comprising blends of a graft copolymer of a high density polyethylene and at least one unsaturated fused ring carboxylic acid anhydride blended with a polyethylene resin of one or more homopolymers of ethylene, copolymers of ethylene and an alpha-olefin or any or all of these.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: May 2, 1978
    Assignee: Chemplex Company
    Inventors: Mitsuzo Shida, John Machonis, Jr., Seymour Schmukler, Robert J. Zeitlin
  • Adhesive blends
    Patent number: 4087588
    Abstract: Compositions of matter having among other desirable characteristics strong adhesive properties to various substrates comprising blends of a graft copolymer of a high density polyethylene and at least one unsaturated, fused ring, carboxylic acid anhydride and this blended with one or more resin copolymers of ethylene and an ethylenically unsaturated ester.
    Type: Grant
    Filed: June 20, 1977
    Date of Patent: May 2, 1978
    Assignee: Chemplex Company
    Inventors: Mitsuzo Shida, John Machonis, Jr., Seymour Schmukler, Robert J. Zeitlin