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.:
Date of Patent:
Oct. 12, 2021
Filed:
Mar. 10, 2017
Applicant:
Sekisui Chemical Co., Ltd., Osaka, JP;
Inventors:
Assignee:
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 17/10 (2006.01); B32B 7/022 (2019.01); B32B 7/027 (2019.01); B32B 7/02 (2019.01); B32B 27/08 (2006.01); B32B 27/20 (2006.01); B32B 27/30 (2006.01); C03C 27/00 (2006.01);
U.S. Cl.
CPC ...
B32B 17/10761 (2013.01); B32B 7/02 (2013.01); B32B 7/022 (2019.01); B32B 7/027 (2019.01); B32B 17/10027 (2013.01); B32B 17/10036 (2013.01); B32B 17/10082 (2013.01); B32B 17/10605 (2013.01); B32B 17/10614 (2013.01); B32B 17/10688 (2013.01); B32B 17/10935 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/30 (2013.01); C03C 27/00 (2013.01); B32B 2264/102 (2013.01); B32B 2307/102 (2013.01); B32B 2307/412 (2013.01); B32B 2307/546 (2013.01); B32B 2419/00 (2013.01); B32B 2605/00 (2013.01); B32B 2605/006 (2013.01);
Abstract
An interlayer film for laminated glass includes a first layer containing a polyvinyl acetal resin and a plasticizer; and a second layer containing a polyvinyl acetal resin and a plasticizer, wherein the second layer is laminated on a first surface of the first layer, wherein a concentration of hydroxyl groups of the polyvinyl acetal resin in the first layer is different from a concentration of hydroxyl groups of the polyvinyl acetal resin in the second layer, and wherein at least one of the first layer, the second layer, or a portion of an interface between the first layer and the second layer contains a filler.