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:
May. 25, 2021
Filed:
Sep. 30, 2014
Sekisui Chemical Co., Ltd., Osaka, JP;
Kaoru Mikayama, Osaka, JP;
Yasuharu Nagai, Osaka, JP;
SEKISUI CHEMICAL CO., LTD., Osaka, JP;
Abstract
There is provided an interlayer film for laminated glass with which the sound insulating properties of laminated glass can be enhanced. The interlayer filmfor laminated glass according to the present invention includes a polyvinyl acetal resin and a second resin component with a glass transition temperature higher than or equal to −15° C. and lower than or equal to 5° C., the content of the polyvinyl acetal resin is greater than or equal to 10% by weight and less than or equal to 50% by weight and the content of the second resin component is greater than or equal to 50% by weight and less than or equal to 90% by weight, in 100% by weight of the total of the polyvinyl acetal resin and the second resin component, and the polyvinyl acetal resin and the second resin component form a sea-island structure in the interlayer film.