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.:

US 10029448 B1

Date of Patent:

Jul. 24, 2018

Filed:

May. 22, 2013

Laminate

Applicant:

Kuraray Co., Ltd., Kurashiki-shi, JP;

Inventor:

Yoshiaki Asanuma, Kurashiki, JP;

Assignee:

KURARAY CO., LTD., Kurashiki-shi, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Robert Harlan

Int. Cl.

CPC ...

B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/22 (2006.01); B32B 7/00 (2006.01); B32B 7/02 (2006.01); B32B 7/04 (2006.01); B32B 7/10 (2006.01); B32B 27/00 (2006.01); B32B 27/06 (2006.01); B32B 27/18 (2006.01); B32B 27/28 (2006.01); B32B 27/36 (2006.01); B32B 17/10 (2006.01);

U.S. Cl.

CPC ...

B32B 27/22 (2013.01); B32B 7/00 (2013.01); B32B 7/02 (2013.01); B32B 7/04 (2013.01); B32B 7/10 (2013.01); B32B 17/10761 (2013.01); B32B 27/00 (2013.01); B32B 27/06 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/28 (2013.01); B32B 27/30 (2013.01); B32B 27/306 (2013.01); B32B 27/36 (2013.01); B32B 2250/00 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2307/102 (2013.01); B32B 2307/40 (2013.01); B32B 2307/412 (2013.01); B32B 2307/50 (2013.01); B32B 2307/732 (2013.01); B32B 2551/00 (2013.01); B32B 2605/00 (2013.01); B32B 2605/006 (2013.01);

Abstract

A laminate contains a layer A and a layer B. The layer A includes a polyvinyl acetal (A), a plasticizer (Ap), and a dispersant (Ad). The layer B includes a polyvinyl acetal (B) and a plasticizer (Bp) and optionally a dispersant (Bd). A mass ratio of (Ad) to (Ap) is larger than a mass ratio of (Bd) to (Bp). The plasticizer (Ap) and the plasticizer (Bp) are an ester compound of an m-valent alcohol with m molecules of a monovalent carboxylic acid having 8 to 16 carbon atoms, where m is a number of 2 to 4; and an ester compound of an n-valent alcohol with n molecules of a monovalent carboxylic acid having 8 to 16 carbon atoms, where n is a number of 2 to 4, respectively. The dispersant (Ad) and the dispersant (Bd) are obtained by hydrolyzing the plasticizer (Ap) and the plasticizer (Bp), respectively.

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