Title:
METHOD FOR PREPARING POLYESTER HOT MELT ADHESIVE WITH HIGH VISCOSITY AND LOCALLY SENSITIVE VISCOSITY-TEMPERATURE PROPERTY
Document Type and Number:
WIPO Patent Application WO/2016/011923
Kind Code:
A1
Abstract:
Disclosed in the present invention is a method for preparing a polyester hot melt adhesive with a high viscosity and a locally sensitive viscosity-temperature property, which comprises the following steps: (1) subjecting terephthalic acid, m-phthalic acid, dodecandioic acid, adipic acid with butanediol, dipropylene glycol and hexanediol to an esterification reaction under the action of a catalyst, tetrabutyl titanate; and (2) adding an antioxidant into the product in the step (1) for a polycondensation reaction under a reduced pressure so as to obtain a polyester hot melt adhesive with a low melting point of 130°C to 135°C, a high viscosity and a locally sensitive viscosity-temperature property.
Inventors:
LI ZHELONG (CN)
ZHU WANYU (CN)
LEI HEJI (CN)
WU FANGQUN (CN)
ZENG ZUOXIANG (CN)
ZHU WANYU (CN)
LEI HEJI (CN)
WU FANGQUN (CN)
ZENG ZUOXIANG (CN)
Application Number:
PCT/CN2015/084459
Publication Date:
January 28, 2016
Filing Date:
July 20, 2015
Export Citation:
Assignee:
KUNSHAN TIANYANG HOT MELT ADHESIVE CO LTD (CN)
SHANGHAI TIANYANG HOT MELT ADHESIVE CO LTD (CN)
UNIV EAST CHINA SCIENCE & TECH (CN)
SHANGHAI TIANYANG HOT MELT ADHESIVE CO LTD (CN)
UNIV EAST CHINA SCIENCE & TECH (CN)
International Classes:
C09J167/02; C08G63/672
Domestic Patent References:
| WO2012013650A1 | 2012-02-02 |
Foreign References:
| CN104119829A | 2014-10-29 | |||
| CN103184027A | 2013-07-03 |
Attorney, Agent or Firm:
SHANGHAI SAVVY INTELLECTUAL PROPERTY AGENCY (CN)
上海思微知识产权代理事务所（普通合伙） (CN)
上海思微知识产权代理事务所（普通合伙） (CN)
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