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:
Mar. 08, 2022
Filed:
Jan. 30, 2019
Sekisui Chemical Co., Ltd., Osaka, JP;
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Abstract
Provided is an interlayer film for laminated glass capable of enhancing the interlayer adhesive force, and enhancing the sound insulating property after a lapse of a certain period of time from production of the interlayer film. An interlayer film for laminated glass according to the present invention is an interlayer film for laminated glass having a one-layer or a two or more-layer structure, a compound obtained by trimethylsilylating the polyvinyl acetate in the presence of N,O-bis(trimethylsilyl)trifluoroacetamide shows a hydrogen peak of trimethylsilyl group existing at 0.06 ppm or more and 0.3 ppm or less inH-NMR measurement in chloroform-d, and a ratio of peak intensity of all peaks existing at 0.06 ppm or more and 0.3 ppm or less, to intensity of all peaks existing at 4.5 ppm or more and 5.3 ppm or less satisfies 0.02 or more and 3 or less.