C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/3008, 400/41
C08L 53/02 (2006.01) A61L 27/26 (2006.01) A61L 29/04 (2006.01) C08L 21/00 (2006.01) C08L 83/06 (2006.01)
Patent
CA 1236617
SPECIFICATION FOR PATENT APPLICATION Title POLYMERIC COMPOSITIONS Applicant Raychem Corporation, a corporation organized according to the laws of the State of California, U.S.A., of 300 Constitution Drive, Menlo Park, California 94025, U.S.A. Inventors Mimzee Zukosky, a U.S. Citizen, of 3485 Hoover Street, Redwood City, Calif. 94063, U.S.A. and Ronald Lee Dieck, a U.S. Citizen, of 881 Rubis Drive, Sunnyvale, California 95087, U.S.A. Convention Priority to be claimed U.S. Serial No. 488,861, filed April 26, 1983, by the inventors named above. ABSTRACT OF THE DISCLOSURE Polymeric compositions comprising 7-28%, preferably 12 to 25%, of a thermoplastic olefin polymer, 1-10%, preferably 2 to 6%, of a siloxane polymer containing 2-70% of siloxane units and at least 20% by weight of carbonate, urethane or amide units, and 69 to 90%, preferably 72 to 83%, of an elastomer. The olefin polymer can for example be polyethylene, polypropylene, or a polar ethylene copolymer. The elastomer can be a thermoplastic elastomer, an ionomer, or a styrene/ butadiene copolymer. The compositions are particu- larly useful in the medical field, for example in the form of tubing.
452762
Dieck Ronald L.
Zukosky Mimzee
Fetherstonhaugh & Co.
Raychem Corporation
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