US 12,072,583 B2
Dimming laminate and resin spacer for dimming laminate
Yasuyuki Yamada, Shiga (JP); Hideyuki Takahashi, Shiga (JP); Saori Ueda, Shiga (JP); and Minoru Nakajima, Shiga (JP)
Assigned to SEKISUI CHEMICAL CO., LTD., Osaka (JP)
Filed by SEKISUI CHEMICAL CO., LTD., Osaka (JP)
Filed on Mar. 31, 2023, as Appl. No. 18/129,458.
Application 18/129,458 is a continuation of application No. 16/962,019, granted, now 11,644,717, previously published as PCT/JP2019/000495, filed on Jan. 10, 2019.
Claims priority of application No. 2018-005684 (JP), filed on Jan. 17, 2018.
Prior Publication US 2023/0244108 A1, Aug. 3, 2023
Int. Cl. G02F 1/1339 (2006.01); B32B 5/16 (2006.01); B32B 17/10 (2006.01); B32B 27/20 (2006.01)
CPC G02F 1/1339 (2013.01) [B32B 5/16 (2013.01); B32B 17/10036 (2013.01); B32B 27/20 (2013.01); B32B 2264/02 (2013.01); B32B 2307/40 (2013.01); B32B 2457/202 (2013.01); G02F 1/13398 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A dimming laminate comprising:
a first transparent base material;
a second transparent base material; and
a dimming layer disposed between the first transparent base material and the second transparent base material,
the dimming layer comprising a resin spacer,
the resin spacer being a plurality of resin particles,
each of the resin particles comprising a pigment or a dye,
the 10% K value of the resin particles being 7000 N/mm2 or less,
the resin spacer comprising no resin particles having a particle diameter of 1.4 times or more an average particle diameter of the resin particles or comprising 0.0006% or less of the resin particles having the particle diameter of 1.4 times or more the average particle diameter of the resin particles, relative to 100% of a whole number of the resin particles, and
the dimming laminate having a curved surface portion, a curvature of the curved surface portion of the dimming laminate being 300R or more and 1800R or less.