POLYLACTIC ACID RESIN FOAM PARTICLE AND POLYLACTIC ACID RESIN FOAM PARTICLE MOLDING

Title:

POLYLACTIC ACID RESIN FOAM PARTICLE AND POLYLACTIC ACID RESIN FOAM PARTICLE MOLDING

Document Type and Number:

WIPO Patent Application WO/2012/086305

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a polylactic acid resin foam particle having excellent fusion properties during in-mold molding, which can be achieved by controlling the crystalline state of a polylactic acid resin foam particle. This polylactic acid resin foam particle is characterized by having such a crystalline structure that, in a first-round DSC curve that is obtained by a first temperature-rising process and a second-round DSC curve that is obtained by cooling the particle that has been subjected to the first temperature-rising process and then rising the temperature of the particle again, which are measured by a heat-flux differential scanning calorimetry method in accordance with JIS K7122 (1987), the following two melting peaks appear in the first-round DSC curve: a melting peak having a peak temperature on the higher-temperature side than a reference peak temperature that is the peak temperature of the melting peak in the second-round DSC curve; and a melting peak having a peak temperature on the lower-temperature side than the reference peak temperature.

Inventors:

SHINOHARA MITSURU (JP)
OIKAWA MASAHARU (JP)

Application Number:

PCT/JP2011/074263

Publication Date:

June 28, 2012

Filing Date:

October 21, 2011

Export Citation:

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Assignee:

JSP CORP (JP)
SHINOHARA MITSURU (JP)
OIKAWA MASAHARU (JP)

International Classes:

C08J9/18; C08L101/16

Foreign References:

JP2009079202A	2009-04-16
JP2009062502A	2009-03-26
JP2009173021A	2009-08-06
JP2002020525A	2002-01-23
JP2007056080A	2007-03-08
JP2003268143A	2003-09-25

Other References: