Process for preparing .alpha.-methylstyrene-acrylonitrile polymers
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United States of America Patent
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Oct 17, 1989
Grant Date -
N/A
app pub date -
May 22, 1987
filing date -
May 22, 1987
priority date (Note) -
Expired
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Abstract
A method of forming polymers containing .alpha.-methylstyrene and acrylonitrile by polymerizing, preferably continuously, under off-azeotrope conditions to vastly improve rate without substantially changing the content of .alpha.-methylstyrene in the polymer being formed from that obtained under azeotrope conditions.
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