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:
Jul. 26, 2022
Filed:
Mar. 27, 2015
Sekisui Chemical Co., Ltd., Osaka, JP;
Tatsuya Iwamoto, Kouka, JP;
Shougo Yoshida, Kouka, JP;
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Abstract
There is provided an interlayer film for laminated glass making a gap difficult to be generated at an end part of the sheet of laminated glass and enabling an increase in the YI value measured at the end part of the sheet of laminated glass to be suppressed. The interlayer film for laminated glass according to the present invention is provided with a first layer which contains a polyvinyl acetal resin and a plasticizer and a second layer which is arranged on a first surface side of the first layer and contains a polyvinyl acetal resin and a plasticizer, the first layer further contains a hindered amine light stabilizer having an alkyl group to bond to the nitrogen atom of a piperidine structure or an alkoxy group to bond to the nitrogen atom of a piperidine structure, and the glass transition temperature of the second layer is higher than or equal to 32° C.