发明名称 |
METHODS FOR PREPARATION OF POLYESTER/GLYOXALATED POLYVINYL ALCOHOL SEMI-INTERPENETRATING POLYMER NETWORK HOT-MELT ADHESIVE |
摘要 |
A polyester/glyoxalated polyvinyl alcohol semi-interpenetrating polymer network hot-melt adhesive and preparation method therefore, mainly inlcudes the steps of: 1) transesterification of certain amounts of dimethyl terephthalate and another dibasic ester with 1,4-butanediol and other diols in the presence of an organotin catalyst under a nitrogen atmosphere in a reactor, completed upon the amount of distillation of a monohydric alcohol byproduct reaching greater than 95% of the theoretical amount; 2) after the temperature is maintained for a period of time, adding in a stabilizer and a polycondensation catalyst and incrementally increasing the temperature to trigger a polycondensation reaction under a reduced pressure to produce particles of a copolymer, and freezing and pulverizing the copolymer particles to produce a powder of a copolyester; 3) uniformly blending a polyvinyl alcohol/glyoxal mixture with the powder produced in step 2) at ambient temperature to produce the target product. The product is capable of forming an internal semi-interpenetrating network at application temperatures. |
申请公布号 |
KR20140091727(A) |
申请公布日期 |
2014.07.22 |
申请号 |
KR20147014702 |
申请日期 |
2013.06.20 |
申请人 |
KUNSHAN TIANYANG HOT MELT ADHESIVE CO., LTD.;EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY;SHANGHAI TIANYANG HOT MELT ADHESIVE CO., LTD. |
发明人 |
LI ZHELONG;ZHU WANYU;WU FANGQUN;ZENG ZUOXIANG |
分类号 |
C09J167/02;C08G63/183;C09J129/14 |
主分类号 |
C09J167/02 |
代理机构 |
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代理人 |
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地址 |
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