Title:
ポリ乳酸樹脂組成物、およびその製造方法、並びにポリ乳酸二軸延伸フィルム、およびそれからなる成形品
Document Type and Number:
Japanese Patent JP4600278
Kind Code:
B2
Abstract:
The invention provides a resin composition containing poly (lactic acid) and a cellulosic ester, which are biomass type materials; a resin composition excellent in transparency, mechanical properties, and thermostability; a biaxially drawn film containing poly(lactic acid) and at least one compound selected from cellulosic esters, poly(meth)acrylates, and polyvinyl compounds having a glass transition temperature of 60 DEG C or higher; and a biaxially drawn film excellent in transparency, mechanical properties, and thermostability. The aims of the invention can be achieved by a resin composition obtained by melt-kneading a poly(lactic acid) polymer with a weight average molecular weight of 50,000 or higher and a cellulosic ester; a resin composition excellent in transparency and having luminous transmittance of 40% or higher for visible light with 400 nm; its production method; a molded article and a film made of the resin composition; a poly(lactic acid) biaxially drawn film containing a poly(lactic acid) polymer with a weight average molecular weight of 50, 000 or higher and at least one compound selected from cellulosic esters, poly(meth)acrylates, and polyvinyl compounds having a glass transition temperature of 60 DEG C or higher; a poly(lactic acid) biaxially drawn film excellent in transparency and having film haze of 10% or lower; and a molded article made of the film.
Inventors:
Takeshi Kanzawa
Sadayuki Kobayashi
Minoru Yoshida
Saki Fumie Ta
Jiro Kumaki
Sadayuki Kobayashi
Minoru Yoshida
Saki Fumie Ta
Jiro Kumaki
Application Number:
JP2005504137A
Publication Date:
December 15, 2010
Filing Date:
February 10, 2004
Export Citation:
Assignee:
TORAY INDUSTRIES,INC.
International Classes:
C08L67/04; B29C55/12; C08J5/18; C08L1/08; C08L25/00; C08L33/00; C08L1/10; C08L25/18; C08L33/08; C08L33/10; C08L101/16
Domestic Patent References:
| JP2001049098A | 2001-02-20 | |||
| JP2000103879A | 2000-04-11 | |||
| JP2003082160A | 2003-03-19 | |||
| JPH0859949A | 1996-03-05 |
Foreign References:
| WO2002094935A1 | 2002-11-28 |