Invention Grant
- Patent Title: Adhesive sheet and adhesive sheet production method
-
Application No.: US15762909Application Date: 2016-09-27
-
Publication No.: US10655036B2Publication Date: 2020-05-19
- Inventor: Kazue Uemura , Yusuke Matsuoka , Takamasa Kase , Kiichiro Kato
- Applicant: LINTEC CORPORATION
- Applicant Address: JP Itabashi-ku
- Assignee: LINTEC CORPORATION
- Current Assignee: LINTEC CORPORATION
- Current Assignee Address: JP Itabashi-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@41eba22e
- International Application: PCT/JP2016/078536 WO 20160927
- International Announcement: WO2017/057411 WO 20170406
- Main IPC: C09J7/38
- IPC: C09J7/38 ; B32B3/30 ; B32B27/00 ; B32B7/06 ; C08K3/36 ; C08K3/22 ; B32B7/12 ; B32B27/20 ; B32B27/36 ; C09J11/04

Abstract:
Provided is a pressure sensitive adhesive sheet including a resin layer on a substrate or a release material, at least a surface (α) of the resin layer on the side opposite to the side thereof on which the substrate or the release material is provided having pressure sensitive adhesiveness, wherein a concave portion and plural flat faces having an irregular shape exist in a region (Dc) surrounded by an arbitrarily predetermined circle on the surface (α) of the resin layer; and with respect to one or more flat faces (S) among the plural flat faces, the one or more flat faces (S) excluding flat faces having a cumulative relative frequency of 30% or less determined by adding the relative frequency from the respective flat faces with a smaller area, an rMAX value of the flat faces (S) calculated from specified operations is 0.60 or less.
Public/Granted literature
- US20190085215A1 ADHESIVE SHEET AND ADHESIVE SHEET PRODUCTION METHOD Public/Granted day:2019-03-21
Information query
IPC分类: