Title:
POLYAMIDE HAVING HIGH CRYSTALLIZATION RATE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2019/137303
Kind Code:
A1
Abstract:
The present invention provides a polyamide having a high crystallization rate. A crystalline peak width at half maximum ΔT1/2 of the polyamide is 6-12ºC. The polyamide having the high crystallization rate is composed of a repeating unit formed by dicarboxylic acid and diamine. The polyamide is composed of the following repeating unit derived from the following: (a) aromatic diacid and aliphatic diacid; and (b) 1,10-diaminodecane and aliphatic diamine having the number of carbon atoms of 2-13 in addition to 1,10-diaminodecane, the aromatic diacid being 70-100 mol% of (a); 1,10-diaminodecane being 70-100 mol% of (b). The polyamide having a high crystallization rate in the present invention has a high crystallization rate, shortens the injection molding period of a material, and improves the production efficiency. The present invention also provides a preparation method for the polyamide. The method has simple operations and raw materials which are cheap and easily obtained, and is suitable for large-scale production. No additives such as a nucleating agent for improving the crystalline rate of the polyamide are added, thus having few influences on the basic property of the polyamide.
Inventors:
YAN KUN (CN)
ZHANG CHUANHUI (CN)
CAO MIN (CN)
JIANG SUJUN (CN)
ZENG XIANGBIN (CN)
HUANG XIANBO (CN)
MAI JIEHONG (CN)
LONG JIEMING (CN)
JIANG ZHIQIANG (CN)
YANG HUIXIN (CN)
CHANG HUAN (CN)
ZHANG CHUANHUI (CN)
CAO MIN (CN)
JIANG SUJUN (CN)
ZENG XIANGBIN (CN)
HUANG XIANBO (CN)
MAI JIEHONG (CN)
LONG JIEMING (CN)
JIANG ZHIQIANG (CN)
YANG HUIXIN (CN)
CHANG HUAN (CN)
Application Number:
PCT/CN2019/070355
Publication Date:
July 18, 2019
Filing Date:
January 04, 2019
Export Citation:
Assignee:
KINGFA SCIENCE & TECHNOLOGY CO (CN)
ZHUHAI VANTEQUE SPECIALTY ENG PLASTICS CO LTD (CN)
ZHUHAI VANTEQUE SPECIALTY ENG PLASTICS CO LTD (CN)
International Classes:
C08G69/26; C08G69/28
Foreign References:
| CN108383996A | 2018-08-10 | |||
| CN102993437A | 2013-03-27 | |||
| JP2000044677A | 2000-02-15 | |||
| CN104530421A | 2015-04-22 | |||
| US5496918A | 1996-03-05 | |||
| EP2301985A1 | 2011-03-30 |
Other References:
LONG, JIEMING ET AL.: "Performance of high glass content nylon 10T Material Weld Lines", CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT, vol. 42, no. 2, 29 February 2016 (2016-02-29), pages 20 - 22
Attorney, Agent or Firm:
GUANGZHOU WISON I.P. LAW FIRM (CN)
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