US 11,987,732 B2
Polarizing plate and method for manufacturing the same
Yasuyuki Sasada, Kanagawa (JP); Kazuya Hisanaga, Kanagawa (JP); and Daiki Wakizaka, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Nov. 4, 2020, as Appl. No. 17/088,923.
Application 17/088,923 is a continuation of application No. PCT/JP2019/019182, filed on May 14, 2019.
Claims priority of application No. 2018-094035 (JP), filed on May 15, 2018; application No. 2018-122349 (JP), filed on Jun. 27, 2018; application No. 2018-131775 (JP), filed on Jul. 11, 2018; and application No. 2018-154104 (JP), filed on Aug. 20, 2018.
Prior Publication US 2021/0047542 A1, Feb. 18, 2021
Int. Cl. C09J 4/00 (2006.01); B32B 7/023 (2019.01); B32B 7/06 (2019.01); B32B 7/12 (2006.01); B32B 27/36 (2006.01); C09J 7/25 (2018.01); C09J 11/06 (2006.01); G02B 5/30 (2006.01)
CPC C09J 4/00 (2013.01) [B32B 7/023 (2019.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/36 (2013.01); C09J 7/255 (2018.01); C09J 11/06 (2013.01); B32B 2307/42 (2013.01); C09J 2301/416 (2020.08); C09J 2467/006 (2013.01); G02B 5/3025 (2013.01); Y10T 428/1476 (2015.01)] 14 Claims
 
1. A polarizing plate comprising:
a polarizer; and
an optical film,
wherein the optical film is laminated on at least one surface of the polarizer with an adhesive containing at least one or more polymerizable compounds, and the at least one or more polymerizable compounds are not substantially infiltrated into the optical film, and
wherein a content rate of a polymerizable compound having a difference in SP value of less than 0.3 MPa0.5 with respect to a main component of the optical film among the at least one or more polymerizable compounds is less than 50% by mass with respect to the adhesive, the SP value being determined by Hoy's method.