| 摘要 |
<p>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. 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 particularly useful in the medical field, for example in the form of tubing.</p> |
