Polymeric compositions suitable for use in the medical field and comprising a thermoplastic olefin, a siloxane polymer, and an elastomer
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United States of America Patent
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Oct 7, 1986
Issued Date -
N/A
app pub date -
Jul 23, 1984
filing date -
Apr 26, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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