L-lactic acid polymer composition, molded product and film

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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2642106, 264235, 2642356, 2643281, 26432817, 264346, 264523, 264540, 524210, 524310, 524312, 525415, 528271, 528354, 528359, 528361, C08K 520

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active

057635137

ABSTRACT:
A lactic acid polymer composition comprising formulating 100 parts by weight of a mixture consisting of 80-95% by weight of an L-lactic acid polymer having an L-lactic acid proportion of 75% or more and 5-20% by weight of a plasticizer selected from the group consisting of a polyhydric alcohol ester and a hydroxypolycarboxylic acid ester, 0.1-5 parts by weight of an anti-bloking agent having a SiO.sub.2 content of 90% or more and an average particle size of 7-50 nm, and 0.1-2 parts by weight of a slip agent; a molded product and film obtained from the composition; and a preparation process of the same are disclosed. The molded product and film are excellent in processability, transparency, flexibility, anti-blocking property and slip, and can be degraded into harmless water and carbon dioxide under natural environment, when abandoned.

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Database WPI, Section Ch, Week 9418, Derwent Publications Ltd., London, GB; Class A23, AN 94-146902 & JP-A-06090628, Apr. 5, 1994 *Abstract *.
Database WPI, Section Ch, Week 9409, Derwent Publications Ltd., London, GB; Class A23, AN 94-071624 & JP-A-06024501, Feb. 1, 1994 *Abstract*.

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