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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 9618658 B1

PDFFull Text
Date of Patent:
Apr. 11, 2017

Filed:

May. 21, 2014

Functional sheet with protective films

Applicants:

Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;

Mgc Filsheet Co., Ltd., Saitama, JP;

Inventors:

Ryuji Yoshida, Saitama, JP;

Toshihiko Takano, Saitama, JP;

Taisuke Sasagawa, Saitama, JP;

Tomomi Nakayama, Saitama, JP;

Assignees:

MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;

MGC FILSHEET CO., LTD., Saitama, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Euncha Cherry

Int. Cl.
CPC ...
G02B 1/00 (2006.01); G02B 1/14 (2015.01); B32B 27/32 (2006.01); G02B 5/30 (2006.01); G02C 7/10 (2006.01); B29C 45/14 (2006.01); B32B 27/06 (2006.01); B32B 27/30 (2006.01); B29D 11/00 (2006.01); B32B 7/02 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); G02B 1/04 (2006.01); G02B 5/23 (2006.01); B29L 11/00 (2006.01); B29K 669/00 (2006.01); B29K 23/00 (2006.01); B29K 25/00 (2006.01); B29K 29/00 (2006.01); B29K 69/00 (2006.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); B29C 45/14811 (2013.01); B29D 11/00009 (2013.01); B29D 11/00644 (2013.01); B32B 7/02 (2013.01); B32B 7/12 (2013.01); B32B 27/06 (2013.01); B32B 27/08 (2013.01); B32B 27/302 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/365 (2013.01); G02B 1/041 (2013.01); G02B 5/23 (2013.01); G02B 5/305 (2013.01); G02B 5/3033 (2013.01); G02C 7/10 (2013.01); B29K 2023/12 (2013.01); B29K 2025/08 (2013.01); B29K 2029/04 (2013.01); B29K 2069/00 (2013.01); B29K 2629/04 (2013.01); B29K 2669/00 (2013.01); B29K 2995/0034 (2013.01); B29L 2011/0016 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2274/00 (2013.01); B32B 2307/42 (2013.01); B32B 2551/00 (2013.01);
Abstract

A functional sheet with protective films obtained by laminating protective sheets includes aromatic polycarbonate onto a functional layer that is a polyvinyl alcohol polarizing layer or a photocromic layer or any combination thereof and having the protective films adhere to the protective sheets. The protective films have at least two or three layers i.e., a base layer composed of a polypropylene that has a melting point higher than the glass transition temperature of an aromatic polycarbonate; an adhesive layer composed of a heat plastic polyolefin elastomer composed of a polyolefin that has a melting point from a temperature that is 15° C. lower than the glass transition temperature of the aromatic polycarbonate to a temperature that is lower than the glass transition temperature and a styrene-olefin-styrene co-poly-elastomer; and a middle layer composed of a polyolefin resin between the base layer and the adhesive layer.

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