Invention Grant
- Patent Title: Release sheet
- Patent Title (中): 发行单
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Application No.: US14387265Application Date: 2012-12-20
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Publication No.: US09227382B2Publication Date: 2016-01-05
- Inventor: Keiichi Sato , Tomomi Fukaya
- Applicant: LINTEC CORPORATION
- Applicant Address: JP Tokyo
- Assignee: LINTEC CORPORATION
- Current Assignee: LINTEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Posz Law Group, PLC
- Priority: JP2012-071912 20120327
- International Application: PCT/JP2012/083127 WO 20121220
- International Announcement: WO2013/145476 WO 20131003
- Main IPC: B32B9/04
- IPC: B32B9/04 ; B32B27/28 ; C09D183/04 ; C08J7/04 ; C09J7/02 ; C08K5/54 ; C08G77/12 ; C08G77/20

Abstract:
A release sheet comprising a base material and a release agent layer formed on at least one surface of the base material, wherein: the release agent layer is formed by using a release agent composition; the release agent composition contains a first polydimethylsiloxane having at least two alkenyl groups in one molecule and a second polydimethylsiloxane having at least two hydrosilyl groups in one molecule; the release agent composition contains 10.00 to 16.00 mmol of the alkenyl groups and 40.00 to 145.00 mmol of the hydrosilyl groups in a total of 30 g of the first polydimethylsiloxane and the second polydimethylsiloxane; and a molar ratio (b/a) of the hydrosilyl groups (b) to the alkenyl groups (a) is 2.0 to 15.0. According to the release sheet, it is possible to suppress the peeling force from increasing even when the release agent layer of the release sheet is exposed to the air for a long time.
Public/Granted literature
- US20150119512A1 RELEASE SHEET Public/Granted day:2015-04-30
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