Title:
BIODEGRADABLE COMPOSITE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/181504
Kind Code:
A1
Abstract:
[Problem] To provide a starting material composition for plastic molded articles, the starting material composition minimizing the problems of soil, atmospheric air and marine pollution caused by burying or incineration of plastic molded articles, while reducing the production cost. [Solution] A biodegradable composite composition according to one embodiment contains 100 parts by weight of a biodegradable polymer matrix resin, 52-80 parts by weight of a powder of waste from coffee processing, and 14-20 parts by weight of a starch powder that is selected from the group consisting of rice flour, corn flour and a mixture thereof. The biodegradable polymer matrix resin contains 90 parts by weight of a polylactic acid (PLA) and 10 parts by weight of a poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV).
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Inventors:
OGI MASATSUNA (JP)
Application Number:
PCT/JP2022/044139
Publication Date:
September 28, 2023
Filing Date:
November 30, 2022
Export Citation:
Assignee:
PNH CO LTD (JP)
International Classes:
C08L67/00; C08K3/18; C08K5/053; C08K5/098; C08L3/02; C08L67/04; C08L91/06; C08L101/16
Foreign References:
| CN112341766A | 2021-02-09 | |||
| CN110452512A | 2019-11-15 | |||
| KR102058394B1 | 2020-01-22 | |||
| KR20110098224A | 2011-09-01 | |||
| CN113201172A | 2021-08-03 | |||
| US20060194900A1 | 2006-08-31 | |||
| CN109593333A | 2019-04-09 |
Attorney, Agent or Firm:
SHIMIZU, Yoshihiro (JP)
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