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:
Jun. 13, 2017
Filed:
Mar. 30, 2011
Koichiro Isoue, Kurashiki, JP;
Yoshiaki Asanuma, Kurashiki, JP;
Koichiro Isoue, Kurashiki, JP;
Yoshiaki Asanuma, Kurashiki, JP;
KURARAY CO., LTD., Okayama, JP;
Abstract
A polyvinyl acetal film as an intermediate film for a laminated glass, can provide a laminated glass that exhibits a low degree of yellowness and excellent surface appearance, and is useful as a sealing material or intermediate film that can prolong the life of a laminated glass provided with a solar cell or functional unit. The content of corrosion-causing substance in the polyvinyl acetal film is low, so that the polyvinyl acetal film permits high-temperature lamination and ensures excellent productivity. A solar cell module and a laminated glass are prepared using the polyvinyl acetal film. A plasticized polyvinyl acetal film which comprises 15 to 60 parts by mass of a plasticizer having a total number of 28 or more of carbon atoms and oxygen atoms constituting a molecule based on 100 parts by mass of a polyvinyl acetal resin, and which has an acid value of 5.0 meq/kg or less.