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.

Date of Patent:
Nov. 28, 2017

Filed:

Aug. 02, 2013
Applicants:

Teijin Limited, Osaka, JP;

Nissha Printing Co., Ltd., Kyoto, JP;

Inventors:

Shoichi Maekawa, Tokyo, JP;

Junichi Shibata, Tokyo, JP;

Takeshi Nishimura, Kyoto, JP;

Shuichi Taya, Kyoto, JP;

Assignees:

TEIJIN LIMITED, Osaka, JP;

NISSHA PRINTING CO., LTD., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 3/10 (2006.01); B29C 47/06 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); B29C 47/00 (2006.01); B29B 11/14 (2006.01); B29K 33/00 (2006.01); B29K 69/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29B 11/14 (2013.01); B29C 47/0021 (2013.01); B29C 47/0061 (2013.01); B29C 47/06 (2013.01); B29C 47/065 (2013.01); B32B 3/10 (2013.01); B32B 27/30 (2013.01); B32B 27/308 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); B29K 2033/08 (2013.01); B29K 2069/00 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2307/306 (2013.01); B32B 2307/536 (2013.01); B32B 2451/00 (2013.01); Y10T 428/2495 (2015.01); Y10T 428/24802 (2015.01);
Abstract

A multi-layer film having excellent surface hardness and transparency, a small heat shrinkage factor and such high brittleness that it is easily trimmed after decorative molding. The multi-layer film comprises a layer (layer A) which contains a polycarbonate resin having a viscosity average molecular weight of 13,000 or more to less than 20,000 and layers (layer B-1 and layer B-2) which contain an acrylic resin and are formed on both sides of the layer A, respectively, wherein the total thickness of the multi-layer film is 50 to 200 μm, and the thickness of the layer A accounts for 5 to 30 $ of the total thickness.


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