Title:
MALEIMIDE-MODIFIED ACTIVE ESTER, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/088239
Kind Code:
A1
Abstract:
Provided are a maleimide-modified active ester, a preparation method therefor and the use thereof. Raw materials for preparing the active ester comprise: a diphenol compound having the structure as shown in formula A1, a diacyl compound having the structure as shown in formula A2 and a maleimide group-containing compound having the structure as shown in formula A3. The active ester is prepared from the three specific raw materials. The molecular structure of the active ester contains an active ester group and maleimide group, and the two functional groups cooperate with each other, such that the active ester has the characteristics of a highly reactive crosslinking site, a low water absorption rate, low dielectric loss, a low dielectric constant and a low thermal expansion coefficient, etc. An epoxy resin composition with the active ester serving as a curing agent and a circuit board comprising same exhibit excellent dielectric properties, heat resistance, resistance to heat and humidity and low thermal expansion coefficients after curing, and have good bonding forces with metal, and the application requirements for a high performance circuit board can be fully met.
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Inventors:
LIN WEI (CN)
HUANG TIANHUI (CN)
YOU JIANG (CN)
XU YONGJING (CN)
HUANG TIANHUI (CN)
YOU JIANG (CN)
XU YONGJING (CN)
Application Number:
PCT/CN2020/127671
Publication Date:
May 05, 2022
Filing Date:
November 10, 2020
Export Citation:
Assignee:
SHENGYI TECHNOLOGY CO LTD (CN)
International Classes:
C08G63/685; C08G63/672; C08G73/10; C08L63/00
Foreign References:
| CN105778430A | 2016-07-20 | |||
| CN104109911A | 2014-10-22 | |||
| CN103524691A | 2014-01-22 | |||
| US20050288455A1 | 2005-12-29 | |||
| US3984373A | 1976-10-05 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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