Title:
GRANULATION PROCESSING METHOD FOR DEGRADABLE MATERIAL AND FORMED BODY PREPARED THEREBY
Document Type and Number:
WIPO Patent Application WO/2024/045338
Kind Code:
A1
Abstract:
The present invention relates to the technical field of processing of degradable materials, and in particular relates to a granulation processing method for a degradable material and a formed body prepared thereby. The method comprises: after a polyhydroxyalkanoate powder is melted, pre-crystallizing same at a temperature of 20-60°C below the Tm of polyhydroxyalkanoate, and then extruding, crystallizing and granulating same. In the granulation processing method of the present invention, pre-crystallization is performed at a temperature of 20-60°C below the Tm of polyhydroxyalkanoate, followed by extrusion, such that the crystallization speed can be accelerated online, non-sticky particles can be quickly obtained and the crystallization time is greatly shortened under the condition that no auxiliary agent is added, thereby facilitating transportation and subsequent processing. In addition, the method of the present invention does not need to change the current extrusion granulation equipment, so that the equipment cost is not additionally increased; and due to a lower processing temperature, the electrical heating power and the heat exchange power are reduced, thereby rendering the energy consumption lower and facilitating popularization and application in actual production.
Inventors:
XU YONG (CN)
MA ZHIYU (CN)
MA YIMING (CN)
LI TENG (CN)
ZHANG HAOQIAN (CN)
MA ZHIYU (CN)
MA YIMING (CN)
LI TENG (CN)
ZHANG HAOQIAN (CN)
Application Number:
PCT/CN2022/130884
Publication Date:
March 07, 2024
Filing Date:
November 09, 2022
Export Citation:
Assignee:
BEIJING BLUEPHA MICROBIOLOGY TECH CO LTD (CN)
JIANGSU LANSU BIOMATERIAL CO LTD (CN)
JIANGSU LANSU BIOMATERIAL CO LTD (CN)
International Classes:
B29B9/12; B29B9/06; B29B9/16
Domestic Patent References:
| WO2021246434A1 | 2021-12-09 |
Foreign References:
| CN115157478A | 2022-10-11 | |||
| CN103443339A | 2013-12-11 | |||
| CN102492274A | 2012-06-13 | |||
| CN103224697A | 2013-07-31 | |||
| CN114851528A | 2022-08-05 | |||
| CN1772791A | 2006-05-17 | |||
| JP2005179386A | 2005-07-07 | |||
| US20090278279A1 | 2009-11-12 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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