Method for producing polylactic acid

Details Method for producing polylactic acid Method for producing polylactic acid

1996-07-11

1998-06-23

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528357, 528361, C08G 6308

Patent

active

057706824

ABSTRACT:
A method for producing a polylactic acid, comprising the steps of carrying out a ring-opening polymerization of lactide to give polylactic acid, adding a compound capable of inactivating a catalyst for ring-opening polymerization of the lactide at the completion of the reaction, and removing unchanged lactide from the polylactic acid product by reducing pressure and/or allowing an inert gas to pass; and a method for forming fiber or film directly from the polylactic acid produced by the invention.

REFERENCES:
patent: 5386004 (1995-01-01), Obuchi et al.

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