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Title:
LAMINATE
Document Type and Number:
WIPO Patent Application WO/2022/065227
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a laminate having excellent adhesiveness, workability, oil resistance, heat resistance, and moist heat resistance. This is achieved by a laminate having a film A, a film B, and a film C in this order with adhesive layers therebetween (where the adhesive layer between the film A and the film B is adhesive layer AB, and the adhesive layer between the film B and the film C is adhesive layer BC), wherein: the maximum value of thermal shrinkage of the film B at 150°C for 30 minutes is 0.1-3.0%; the Martens hardness of the adhesive layer AB and the adhesive layer BC is 1.0-4.0 N/mm2; and when the laminate is heat treated by immersion in automatic transmission fluid at 150°C for 10 hours, the adhered surface area ratio of the film A and the film B with the adhesive layer AB therebetween, and the adhered surface area ratio of the film B and the film C with the adhesive layer BC therebetween are both not less than 95%.

Inventors:
MIYASHITA MASANORI (JP)
MORI KENTARO (JP)
Application Number:
PCT/JP2021/034297
Publication Date:
March 31, 2022
Filing Date:
September 17, 2021
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
B32B27/00; B32B27/34; B32B27/36; H02K3/30
Domestic Patent References:
WO2017199703A12017-11-23
Foreign References:
JP2020163855A2020-10-08
JP2019127033A2019-08-01
JPH05338084A1993-12-21
JP2006262687A2006-09-28
JP2014529842A2014-11-13
JP2016163948A2016-09-08
JP2006262687A2006-09-28
Other References:
JAPAN GLUE ASSOCIATION, vol. 15, no. 3, pages 96
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