Bubble-containing ethylene/.alpha.-olefin rubber
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United States of America Patent
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Nov 26, 1991
Grant Date -
N/A
app pub date -
Oct 13, 1989
filing date -
Oct 14, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In accordance with the present invention, there is provided a bubble-containing ehtylene/.alpha.-olefin rubber excellent in kneadability, characterized in that the ethylene/.alpha.-olefin rubber prepared by copolymerization of 50-95 mol% of ethylene, 5-50 mol% of .alpha.-olefin having at least 3 carbon atoms and 0-10 mol% of non-conjugated polyene contains 5-1000 parts by volume, based on 100 parts by volume of said rubber, of bubbles and has a water absorption volume as measured in accordance with ASTM D 1506 of less than 20% by volume of the total bubble volume.
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