Preparation of discrete particles of polyalkylene carbonate
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United States of America Patent
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Aug 1, 1989
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N/A
app pub date -
Mar 21, 1988
filing date -
Mar 21, 1988
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Expired
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Abstract
The selection of the proper solvent systems for polyalkylene carbonates which completely dissolve the polymer at high temperatures but are non-solvents at lower temperatures allows one to obtain discrete particles of the polymers suitable for many applications, processing and handling. The particles size can be controlled from about 30 to about 3000 microns in diameter.
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