Polyester composition containing vaterite-type calcium carbonate
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United States of America Patent
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Feb 22, 1994
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N/A
app pub date -
May 24, 1991
filing date -
May 28, 1990
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Expired
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Abstract
A polyester composition is disclosed, which is characterized in that it contains, besides polyester, vaterite-type calcium carbonate obtainable through carbonation reaction of a calcium compound in a mixed medium of alcohol and water. The polyester composition is superior in compatibility between the polyester and the vaterite-type calcium carbonate.
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