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Title:
POLYLACTIC ACID RESIN COMPOSITION
Document Type and Number:
Japanese Patent JP2012246338
Kind Code:
A
Abstract:

To provide a resin material excellent in moldability and molded article appearance by adding a plasticizer having a specific structure to a polylactic acid resin imparting little environmental load.

A composition contains 100 parts by weight of (A) a polylactic acid (A component) containing (A-1) a poly-L-lactic acid (A-1 component) composed mainly of an L-lactic acid unit and (A-2) a poly-D-lactic acid (A-2 component) composed mainly of a D-lactic acid unit and having a weight ratio of the A-1 component and the A-2 component in the range of 10:90 to 90:10, and 0.5 to 10 parts by weight of (B) a plasticizer (B component) represented by formula (1) wherein R1 is a 8-22C straight-chain or branched-chain alkyl group; R2 is a 1-3C alkyl group; n is an integer in the range of 5 to 20; AO is at least one selected from ethylene glycol, propylene glycol and butylene glycol, and may be homopolymerized or copolymerized.


Inventors:
MATSUNO YUICHI
MITSUNAGA MASAKI
HATTORI RYOHEI
KITAMURA TAKURO
ENDO KOHEI
Application Number:
JP2011116967A
Publication Date:
December 13, 2012
Filing Date:
May 25, 2011
Export Citation:
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Assignee:
TEIJIN CHEMICALS LTD
TEIJIN LTD
International Classes:
C08L67/04; B29C45/00; C08G63/06; C08K5/101; C08L71/02; C08L101/16
Domestic Patent References:
JP2010132871A2010-06-17
JP2005336448A2005-12-08
JP2010132871A2010-06-17
Foreign References:
WO2009145778A12009-12-03
WO2010053167A12010-05-14
US6127512A2000-10-03
WO2009145778A12009-12-03
Attorney, Agent or Firm:
Taro Tameyama