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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11117351 B1

PDFFull Text
Date of Patent:
Sep. 14, 2021

Filed:

Aug. 02, 2017

Interlayer film for colored laminated glass, and colored laminated glass

Applicant:

Sekisui Chemical Co., Ltd., Osaka, JP;

Inventors:

Masaki Yamamoto, Shiga, JP;

Manabu Matsumoto, Shiga, JP;

Hiroaki Inui, Roermond, NL;

Atsushi Nohara, Shiga, JP;

Assignee:

SEKISUI CHEMICAL CO., LTD., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Z Jim Yang

Int. Cl.
CPC ...
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);
U.S. Cl.
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);
Abstract

The present invention aims to provide an interlayer film for a colored laminated glass which exhibits a visible light transmittance Tv of 5% or lower, small variation in visible light transmittance and an excellent appearance when incorporated in a laminated glass together with two clear glass plates in conformity with JIS R3202 (1996), and a colored laminated glass produced using the interlayer film for a colored laminated glass. Provided is 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 including 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 Δtin thickness between the maximum value tand the minimum value tto an average thickness (Δt/average thickness of first resin layer) of 0.30 or less.

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