Title:
HIGH TEMPERATURE RESISTANT B-STAGEABLE EPOXY ADHESIVE AND ARTICLE MANUFACTURED THEREFROM
Document Type and Number:
WIPO Patent Application WO/2021/128250
Kind Code:
A1
Abstract:
The present disclosure relates to a B-stageable epoxy adhesive composition and an article manufactured therefrom. The B-stageable epoxy adhesive composition comprises (A) 20%to 50%by weight of a first epoxy resin with an epoxide equivalent of 5000 g/eq or more; (B) 5%to 20%by weight of a second epoxy resin with an epoxide equivalent of 800 g/eq or less and having 2 to 4 epoxy functional groups; (C) 5%to 30%by weight of a carboxyl terminated polyester; (D) 5%to 15%by weight of a poly-isocyanate modified polyester; and (E) 0.1%to 0.5%by weight of a crosslinking agent containing 2 or more aziridine groups, all the content percentages are based on the total weight of the B-stageable epoxy adhesive composition. The B-stageable epoxy adhesive composition and the related products could be widely used as insulation protection for battery management, bus bar, transformers and other markets with a good balance between a high bonding strength and a high temperature resistance, and others.
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Inventors:
LI DONG (CN)
GUAN ZHENG (CN)
GUAN ZHENG (CN)
Application Number:
PCT/CN2019/129103
Publication Date:
July 01, 2021
Filing Date:
December 27, 2019
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES CO (US)
LI DONG (CN)
LI DONG (CN)
International Classes:
C09J163/00; C09J11/06; C09J167/00
Domestic Patent References:
| WO2017045120A1 | 2017-03-23 | |||
| WO2011003761A1 | 2011-01-13 | |||
| WO2011129323A1 | 2011-10-20 |
Foreign References:
| CN102532483A | 2012-07-04 | |||
| CN108314986A | 2018-07-24 | |||
| CN105646840A | 2016-06-08 | |||
| CN106634549A | 2017-05-10 |
Other References:
SOARES BLUMA G., GONÇALEZ VIVIANE, GALIMBERTI RURIK, BARCIA FABIO L., SIRQUEIRA ALEX S.: "Polyester containing isocyanate groups-Modified epoxy resin: Rheological, dynamic-mechanical, and impact properties", POLYMER ENGINEERING AND SCIENCE, BROOKFIELD CENTER., US, vol. 48, no. 10, 1 October 2008 (2008-10-01), US, pages 1917 - 1922, XP055824832, ISSN: 0032-3888, DOI: 10.1002/pen.21035
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (CN)
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