Title:
PREPARATION METHOD FOR HIGH-RESILIENCE BIODEGRADABLE POLYESTER MICRO-FOAMED SPECIAL PROFILE
Document Type and Number:
WIPO Patent Application WO/2022/134296
Kind Code:
A1
Abstract:
A preparation method for a high-resilience biodegradable polyester foamed special profile, the preparation method comprising the following steps: S1, mixing PBAT resin, a nucleating agent and a chain extender, and then extruding and granulating same to obtain a PBAT modified material, wherein the chain extender is one or more of a trifunctional epoxy compound and a tetrafunctional epoxy compound; S2, preparing a PBAT plate from the PBAT modified material, and then subjecting same to high-pressure fluid saturation and rapid pressure relief foaming to obtain a PBAT foamed plate; and S3, heating the PBAT foamed plate by means of a mold to obtain a PBAT foamed special profile. The preparation method is simple in terms of process, can be used for preparing a complex-shape, biodegradable and high-performance foamed special profile material, and can be applied to fields such as sports protection, foamed shoe materials, buffer packaging.
Inventors:
XIONG ZUJIANG (CN)
WANG YOUCHENG (CN)
LIU YILONG (CN)
WANG YOUCHENG (CN)
LIU YILONG (CN)
Application Number:
PCT/CN2021/077197
Publication Date:
June 30, 2022
Filing Date:
February 22, 2021
Export Citation:
Assignee:
ANTA CHINA CO LTD (CN)
International Classes:
C08J9/12; C08K3/34; C08K5/134; C08L67/02; C08L101/06
Foreign References:
| CN106476298A | 2017-03-08 | |||
| CN106967280A | 2017-07-21 | |||
| CN102241830A | 2011-11-16 | |||
| US20160237209A1 | 2016-08-18 |
Other References:
SONG JINGSI;WANG XIANZENG;ZHOU HONGFU;WANG XIANGDONG;ZHANG YUXIA: "Study on Chain Extension and Microcellular Foaming Behaviors of Poly(butyleneadipate-co-terephthlate)", CHINA PLASTICS, vol. 32, no. 11, 26 November 2018 (2018-11-26), pages 42 - 48, XP055945771, ISSN: 1001-9278, DOI: 10.19491/j.issn.1001-9278.2018.11.007
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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