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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 11554574 B1

PDFFull Text
Date of Patent:
Jan. 17, 2023

Filed:

Sep. 29, 2016

Interlayer film for laminated glass and laminated glass

Applicant:

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

Inventors:

Yuusuke Oota, Kouka, JP;

Masaki Matsudou, Kouka, JP;

Daizou Ii, Kouka, JP;

Ryuta Tsunoda, Kouka, JP;

Assignee:

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

Attorney:

Cheng Law Group, PLLC

Primary Examiner:

Z Jim Yang

Int. Cl.
CPC ...
B32B 17/10 (2006.01); B29C 48/13 (2019.01); B32B 3/26 (2006.01); B32B 27/18 (2006.01); B29C 48/08 (2019.01); B29C 48/21 (2019.01); B60J 1/00 (2006.01); B60J 1/02 (2006.01); B29K 31/00 (2006.01); B29L 31/30 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B32B 17/10568 (2013.01); B29C 48/13 (2019.02); B32B 3/26 (2013.01); B32B 3/263 (2013.01); B32B 17/10 (2013.01); B32B 17/1011 (2013.01); B32B 17/10541 (2013.01); B32B 17/10633 (2013.01); B32B 17/10761 (2013.01); B32B 27/18 (2013.01); B29C 48/08 (2019.02); B29C 48/21 (2019.02); B29K 2031/04 (2013.01); B29L 2031/30 (2013.01); B29L 2031/778 (2013.01); B32B 2605/006 (2013.01); B60J 1/00 (2013.01); B60J 1/001 (2013.01); B60J 1/02 (2013.01);
Abstract

There is provided an interlayer film for laminated glass with which the visibility can be made uniform over the whole area of laminated glass. The interlayer film for laminated glass according to the present invention contains a thermoplastic resin and a heat shielding compound and has one end and the other end being at the opposite side of the one end and having a thickness thicker than the one end, the absolute value of a difference between the thickness of a thickest portion and the thickness of a thinnest portion is 0.1 mm or more, and in a sheet of laminated glass prepared by sandwiching the interlayer film between two sheets of heat ray-absorbing plate glass with a thickness of 2.1 mm, the absolute value of a difference between the visible light transmittance at the thickest portion of the interlayer film and the visible light transmittance at the thinnest portion of the interlayer film is 4% or less.

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