Title:
POLYLACTIC ACID SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2014/106934
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a polylactic acid sheet having superior moldability, transparency, and heat resistance. The polylactic acid sheet is non-oriented and has an A layer having a polylactic acid resin as the main constituent (hereinafter, the polylactic acid resin comprising the main constituent of the A layer is referred to as polylactic acid resin A), the polylactic acid resin A having a melting point of at least 190°C and less than 230°C when measured under the belowmentioned conditions (1). Conditions (1): When measuring DSC, in a first heating step, heating is performed from 30°C to 250°C at a rate of temperature increase of 20°C/minute, after which cooling is performed to 30°C at a rate of temperature decrease of 20°C/minute, and further heating is performed from 30°C to 250°C in a second heating step at a rate of temperature increase of 20°C/minute, at which point the melting point is measured.
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Inventors:
ISHIDA YOICHI (JP)
YAMAUCHI HIDEYUKI (JP)
ARASAKI MORIAKI (JP)
SAKAMOTO JUN (JP)
YAMAUCHI HIDEYUKI (JP)
ARASAKI MORIAKI (JP)
SAKAMOTO JUN (JP)
Application Number:
PCT/JP2013/084424
Publication Date:
July 10, 2014
Filing Date:
December 24, 2013
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08J5/18; B32B27/36; C08G63/06; C08G63/80; C08L67/04; C08L101/16
Domestic Patent References:
| WO2012029393A1 | 2012-03-08 | |||
| WO2012032912A1 | 2012-03-15 |
Foreign References:
| JP2011231240A | 2011-11-17 | |||
| JP2011038038A | 2011-02-24 | |||
| JP2010260899A | 2010-11-18 | |||
| JP2011245788A | 2011-12-08 |
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