Polylactic acid-based composition and film formed thereof
AssigneesToray Industries, Inc., Toray Fibers & Textiles Research Laboratories (China) Co., Ltd.
InventorsGouhei Yamamura, Hiroji Kojima, Masahiro Kimura, Zhengzheng Lai, Bo Liu, Ruoyu Qiu, Tian Xia, Shunji Kono
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Abstract
A polylactic acid-based composition including a polylactic acid-based resin, a buffering agent; and/or a compound derived from the buffering agent.
Claims12
A method of producing a polylactic acid-based composition comprising 1) a polylactic acid-based resin, 2) a carboxyl group reactive end capping agent, and 3) a buffering agent which is an alkali metal salt of an inorganic compound of phosphoric acid selected from the group consisting of potassium dihydrogen phosphate and/or sodium dihydrogen phosphate and/or a compound derived from the buffering agent, the method comprising:
- producing the polylactic acid-based resin by polymerization;
- and
- adding the buffering agent after production of the polylactic acid-based resin.
Dependencies are inferred from the claim text.