Title:
POLYAMIDE COMPOSITE FOR IMPROVING LASER WELDABILITY
Document Type and Number:
WIPO Patent Application WO/2021/129503
Kind Code:
A1
Abstract:
A polyamide composite for improving laser weldability, comprising at least one polyamide resin. The polyamide resin is obtained by means of a polymerization reaction of the following monomers: 1) at least 10 mol% of monomers which form a diamine-derived structure repeating unit of the polyamide and are derived from at least one aliphatic diamine and/or cycloaliphatic diamine, the total number of carbon atoms of which is an odd number and/or the number of carbon atoms located on the backbone of which is an odd number; and 2) at least 10 mol% of monomers which form a dicarboxylic acid-derived structure repeating unit of the polyamide and are derived from at least one aliphatic dicarboxylic acid, the total number of carbon atoms of which is 4-18; or 3) at least 10 mol% of monomers which form a dicarboxylic acid-derived structure repeating unit of the polyamide and are derived from at least one aliphatic dicarboxylic acid and/or cycloaliphatic dicarboxylic acid, the total number of carbon atoms of which is an odd number and/or the number of carbon atoms located on the backbone of which is an odd number; and 4) at least 10 mol% of monomers which form a diamine-derived structure repeating unit of the polyamide and are derived from at least one aliphatic diamine and/or cycloaliphatic diamine, the total number of carbon atoms of which is 4-18. The polyamide resin accounts for 25%-90% of the total weight of the polyamide composite. By improving the structure of the polyamide resin, the laser weldability can be effectively improved, the application range of laser welding is further widened, and the laser transparency and the laser welding strength are improved.
Inventors:
LIN JIELONG (CN)
YANG BO (CN)
DING ZHENGYA (CN)
ZHANG CHAO (CN)
XU HONGYAO (CN)
XIAO JUNHUA (CN)
XIA JIANMENG (CN)
YUAN SHAOYAN (CN)
YE SHIBING (CN)
WANG FEI (CN)
AN PENG (CN)
FU DAJIONG (CN)
HUANG HESHENG (CN)
WANG QILING (CN)
YANG BO (CN)
DING ZHENGYA (CN)
ZHANG CHAO (CN)
XU HONGYAO (CN)
XIAO JUNHUA (CN)
XIA JIANMENG (CN)
YUAN SHAOYAN (CN)
YE SHIBING (CN)
WANG FEI (CN)
AN PENG (CN)
FU DAJIONG (CN)
HUANG HESHENG (CN)
WANG QILING (CN)
Application Number:
PCT/CN2020/137130
Publication Date:
July 01, 2021
Filing Date:
December 17, 2020
Export Citation:
Assignee:
SHANGHAI KINGFA SCI & TECH DVPT CO LTD (CN)
JIANGSU KINGFA SCI & TECH ADV MAT CO LTD (CN)
UNIV DONGHUA (CN)
JIANGSU KINGFA SCI & TECH ADV MAT CO LTD (CN)
UNIV DONGHUA (CN)
International Classes:
C08K3/04; C08L77/06; C08K3/34; C08K5/20; C08K7/14; C08K13/04; C08L77/02
Foreign References:
| CN111138852A | 2020-05-12 | |||
| CN111117235A | 2020-05-08 | |||
| CN111171564A | 2020-05-19 | |||
| CN108203507A | 2018-06-26 | |||
| CN101175791A | 2008-05-07 | |||
| CN102558854A | 2012-07-11 | |||
| CN102015899A | 2011-04-13 | |||
| US20060292387A1 | 2006-12-28 |
Attorney, Agent or Firm:
SHANGHAI TECHNOVO INTELLECTUAL PROPERTY AGENT FIRM (CN)
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