A transparent pressure sensitive adhesive sheet with a front surface and a back surface, fabricated by changing the intensity of the ultraviolet light irradiation between the front surface and the back surface. The transparent pressure sensitive adhesive sheet is obtained by ultraviolet light irradiation of an ultraviolet light hardening pressure sensitive adhesive sheet that contains a (meth)acrylic copolymer, a cleavage type photoinitiator, and an ultraviolet light absorber. The amount of ultraviolet light irradiation varies between the first surface and the second surface and the adhesive force varies between the first surface and the second surface.
申请公布号
WO2014011598(A1)
申请公布日期
2014.01.16
申请号
WO2013US49665
申请日期
2013.07.09
申请人
3M INNOVATIVE PROPERTIES COMPANY;UEDA, SAORI;SUWA, TOSHIHIRO;SUZUKI, SHUNSUKE;FUJITA, JUN
发明人
UEDA, SAORI;SUWA, TOSHIHIRO;SUZUKI, SHUNSUKE;FUJITA, JUN