2003-335850 is referenced by 1 patents.

PROBLEM TO BE SOLVED: To provide a method of producing a biodegradable plastic by synthesizing polylactic acid directly from lactic acid, unlike current processes based on a route of synthesizing polylactic acid from lactic acid through lactide, and an apparatus for the method, which achieve a substantial reduction of the time for synthesis of polylactic acid and the production cost.SOLUTION: The method comprises dehydration polycondensation of the raw material lactic acid under high-temperature and reduced-pressure conditions in the presence of a metal catalyst to obtain polylactic acid serving as the main component of biodegradable plastics.

Title
Method of manufacturing biodegradable plastic and apparatus for it
Application Number
2002-142879
Publication Number
2003-335850
Application Date
May 17, 2002
Publication Date
November 28, 2003
Inventor
Matsumura Masatoshi
Yamada Junji
Kin Tohaku
Takamura Koji
Nomura Nakao
Assignee
J Corporation
IPC
C08G 63/78