Patents by Inventor Leland B. Kliever

Leland B. Kliever 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).

  • Non-agglomerating elastomeric particles
    Patent number: 6060553
    Abstract: Elastomeric particles, which have a tendency to agglomerate, are rendered non-agglomerating by contacting those particles with an aqueous solution or dispersion of a polyurethane rubber, a high Mooney viscosity, high gel content rubber and/or a soap, and optionally a polar binder, separating the coated elastomeric particles from the solution or dispersion, and then drying the elastomeric particles while keeping the coated particles in motion.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: May 9, 2000
    Assignee: Zeon Chemicals Incorporated
    Inventors: John P. Lenczyk, August H. Jorgensen, Jr., Jayant R. Angal, Leland B. Kliever
  • Grafted nitrile rubber--plasticized PVC blends as thermoplastic elastomers
    Patent number: 4764552
    Abstract: Compositions comprising grafted nitride rubber, PVC and plasticizer are good thermoplastic elastomers without vulcanization. These compositions exhibit good solvent and abrasion resistance and usually good resistance to compression set.
    Type: Grant
    Filed: November 24, 1986
    Date of Patent: August 16, 1988
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: John C. Falk, Leland B. Kliever
  • Graft copolymer - plasticized PVC blends as thermoplastic elastomers
    Patent number: 4659766
    Abstract: Compositions comprising high rubber ABS graft copolymers, PVC and plasticizers for PVC are useful as thermoplastic elastomers. Formulations exhibiting good solvent resistance, abrasion and compression set characteristics may be used in shoe soling, wire and cable covering, hose and tubing and automotive applications.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: April 21, 1987
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: John C. Falk, Leland B. Kliever
  • Acrylic sequential graft copolymer-styrene-acrylonitrile copolymer blends
    Patent number: 4542179
    Abstract: The addition of styrene-acrylonitrile copolymer to acrylic core-shell thermoplastic elastomers reduces mold shrinkage and improves surface hardness. The compositions are useful as moldable and extrudable rubber goods.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: September 17, 1985
    Assignee: Borg-Warner Chemicals, Inc.
    Inventors: John C. Falk, Leland B. Kliever