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:
Dec. 31, 2019
Filed:
Mar. 22, 2013
Kuraray Co., Ltd., Kurashiki-shi, JP;
Yoshiaki Asanuma, Kurashiki, JP;
KURARAY CO., LTD., Kurashiki-shi, JP;
Abstract
To provide a laminated product of a layer including a polyvinyl acetal and a layer including a hydrocarbon-based polymer, having excellent adhesion between the layers. A composition including, with respect to 100 parts by mass of a polyvinyl acetal satisfying definition 1 and/or definition 2, 30 to 70 parts by mass of a plasticizer including 0.5 to 100% by mass of a plasticizer containing a polar group and 0 to 99.5% of a plasticizer containing no polar group. Definition 1: When 1 g of a polyvinyl acetal is dissolved in 100 g of methanol, an undissolved content is 2.5 to 90% by mass. Definition 2: When 1 g of a polyvinyl acetal is dissolved in 100 g of chloroform, an undissolved content is 5 to 70% by mass.