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Patent Searching and Data


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.

Inventors:
MATSUOKA YOSHIAKI
Application Number:
PCT/JP2021/010511
Publication Date:
September 30, 2021
Filing Date:
March 16, 2021
Export Citation:
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Assignee:
KANEKA CORP (JP)
International Classes:
C08J3/215; C08L3/02; C08L67/00; C08L101/16
Foreign References:
JP2013510210A2013-03-21
JP2011026538A2011-02-10
JP2013028701A2013-02-07
US20090324917A12009-12-31
US6191196B12001-02-20
KR20090008099A2009-01-21
CN1613901A2005-05-11
JPH10158485A1998-06-16
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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