Polyolefin compositions containing high and low molecular weight EPDM rubbers
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United States of America Patent
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Mar 12, 1996
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N/A
app pub date -
Sep 23, 1994
filing date -
Feb 10, 1993
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Abstract
The present invention relates to polymer compositions having improved adhesion for coating materials. The compositions include 40-90% by weight of a polyolefin, 10-50% by weight of a first rubber component and 1-20% by weight of a second rubber component. The first rubber component is preferably an ethylene propylene diene rubber having a weight average molecular weight of 50,000 to 300,000, while the second rubber is an ethylene-propylene diene rubber having a number average molecular weight of about 2,000 to 10,000.
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