Title:
MANUFACTURING METHOD FOR THERMOPLASTIC RESIN COMPOSITION, MANUFACTURING METHOD FOR SHAPED BODY, AND FILM
Document Type and Number:
WIPO Patent Application WO/2021/193219
Kind Code:
A1
Abstract:
At least one embodiment of the present invention pertains to a manufacturing method for a thermoplastic resin composition including a biodegradable polyester resin (A) and a starch material (B), said manufacturing method including: a first step for melt blending a mixture including the polyester resin (A), the starch material (B), and water, said water being included at 25-55 parts by weight, inclusive, per 100 parts by weight of solids of the starch material (B); and a second step for reducing the water content in the melt-blended mixture to at most 5 wt% by dehydrating the melt-blended mixture after the first step. Additionally, at least one embodiment of the present invention pertains to a film that contains the thermoplastic resin composition including the biodegradable polyester resin (A) and the starch material (B), said starch material (B) having a number average particle size of at most 3 μm.
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Inventors:
MATSUOKA YOSHIAKI
Application Number:
PCT/JP2021/010511
Publication Date:
September 30, 2021
Filing Date:
March 16, 2021
Export Citation:
Assignee:
KANEKA CORP (JP)
International Classes:
C08J3/215; C08L3/02; C08L67/00; C08L101/16
Foreign References:
JP2013510210A | 2013-03-21 | |||
JP2011026538A | 2011-02-10 | |||
JP2013028701A | 2013-02-07 | |||
US20090324917A1 | 2009-12-31 | |||
US6191196B1 | 2001-02-20 | |||
KR20090008099A | 2009-01-21 | |||
CN1613901A | 2005-05-11 | |||
JPH10158485A | 1998-06-16 |
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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