Polymer containing lactic acid as its constituting unit and method for producing the same
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United States of America Patent
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Apr 8, 1997
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Aug 3, 1994
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Aug 19, 1993
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Abstract
A polymer having a blocked terminal group according to the present invention, represented by the following Formula (I): ##STR1## where R is an alkylene group containing 1 to 20 carbon atoms; X.sub.1 is an acyl group containing 2 to 50 carbon atoms; Y is H, an alkyl group containing 1 to 50 carbon atoms or an alkenyl group containing 1 to 50 carbon atoms; m is a positive integer; and n.sub.1 is 0 or a positive integer.
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