US 11,724,480 B2
Interlayer film for colored laminated glass, and colored laminated glass
Masaki Yamamoto, Shiga (JP); Manabu Matsumoto, Shiga (JP); Hiroaki Inui, Roermond (NL); and Atsushi Nohara, Shiga (JP)
Assigned to SEKISUI CHEMICAL CO., LTD., Osaka (JP)
Filed by SEKISUI CHEMICAL CO., LTD., Osaka (JP)
Filed on Aug. 5, 2021, as Appl. No. 17/395,199.
Application 17/395,199 is a continuation of application No. 16/316,065, granted, now 11,117,351, previously published as PCT/JP2017/028137, filed on Aug. 2, 2017.
Claims priority of application No. 2016-153260 (JP), filed on Aug. 3, 2016; and application No. 2016-153261 (JP), filed on Aug. 3, 2016.
Prior Publication US 2021/0362478 A1, Nov. 25, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 17/10 (2006.01); B29C 48/00 (2019.01); B29C 48/21 (2019.01); B32B 37/10 (2006.01); B32B 37/18 (2006.01); B32B 7/023 (2019.01); C08K 3/04 (2006.01); C08K 5/103 (2006.01); C08L 29/14 (2006.01); B32B 27/20 (2006.01); B60J 1/00 (2006.01); B29K 105/00 (2006.01); B29L 7/00 (2006.01); B29L 9/00 (2006.01)
CPC B32B 17/10587 (2013.01) [B29C 48/002 (2019.02); B29C 48/022 (2019.02); B29C 48/21 (2019.02); B32B 7/023 (2019.01); B32B 17/10036 (2013.01); B32B 17/10559 (2013.01); B32B 17/10568 (2013.01); B32B 17/10577 (2013.01); B32B 17/10605 (2013.01); B32B 17/10651 (2013.01); B32B 17/10761 (2013.01); B32B 27/20 (2013.01); B32B 37/1018 (2013.01); B32B 37/182 (2013.01); B60J 1/001 (2013.01); C08K 3/04 (2013.01); C08K 5/103 (2013.01); C08L 29/14 (2013.01); B29K 2105/0032 (2013.01); B29L 2007/008 (2013.01); B29L 2009/00 (2013.01); B32B 2250/04 (2013.01); B32B 2250/40 (2013.01); B32B 2307/402 (2013.01); B32B 2307/4026 (2013.01); B32B 2419/00 (2013.01); B32B 2605/006 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An interlayer film for a colored laminated glass exhibiting a visible light transmittance Tv of 5% or lower when incorporated in a laminated glass together with two clear glass plates in conformity with JIS R3202 (1996),
the interlayer film for a colored laminated glass comprising a laminate of at least two layers including a first resin layer containing a thermoplastic resin and a colorant and a second resin layer containing a thermoplastic resin and no colorant,
the first resin layer satisfying a ratio of a difference Δt1 in thickness between the maximum value t1max and the minimum value t1min to an average thickness (Δt1 of first resin layer/average thickness of first resin layer) of 0.30 or less,
wherein the interlayer film has recesses on at least one surface thereof, and
wherein a CV value of visible light transmittance (%) obtained by a following equation is 24.6% or less:
CV value=standard deviation/average of visible light transmittance×100.