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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 10564325 B1

PDFFull Text
Date of Patent:
Feb. 18, 2020

Filed:

Nov. 18, 2015

Protective film-attached functional sheet

Applicants:

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

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

Inventors:

Ryuji Yoshida, Tokorozawa, JP;

Toshihiko Takano, Tokyo, JP;

Assignees:

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

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

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Mathieu D Vargot

Int. Cl.
CPC ...
G02B 1/12 (2006.01); B29D 11/00 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); G02B 5/23 (2006.01); G02B 5/30 (2006.01); B32B 27/36 (2006.01); B29C 45/14 (2006.01); B32B 25/08 (2006.01); B32B 25/14 (2006.01); C09J 7/20 (2018.01); B29K 23/00 (2006.01); B29K 69/00 (2006.01); B29K 623/00 (2006.01); B29K 629/00 (2006.01); B29K 669/00 (2006.01); B29L 11/00 (2006.01);
U.S. Cl.
CPC ...
G02B 1/12 (2013.01); B29C 45/14 (2013.01); B29C 45/14336 (2013.01); B29D 11/00009 (2013.01); B32B 25/08 (2013.01); B32B 25/14 (2013.01); B32B 27/08 (2013.01); B32B 27/30 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); C09J 7/20 (2018.01); G02B 5/23 (2013.01); G02B 5/30 (2013.01); B29K 2023/12 (2013.01); B29K 2069/00 (2013.01); B29K 2623/12 (2013.01); B29K 2629/04 (2013.01); B29K 2669/00 (2013.01); B29K 2995/0034 (2013.01); B29L 2011/0016 (2013.01); B32B 2250/24 (2013.01); B32B 2250/40 (2013.01); B32B 2255/10 (2013.01); B32B 2255/24 (2013.01); B32B 2307/30 (2013.01); B32B 2307/40 (2013.01); B32B 2307/402 (2013.01); B32B 2307/42 (2013.01); B32B 2307/732 (2013.01); B32B 2551/00 (2013.01); B32B 2571/00 (2013.01); B32B 2571/02 (2013.01);
Abstract

A protective film-attached functional sheet includes a protective film bonded to a functional sheet including aromatic polycarbonate sheets and a functional layer sandwiched between the aromatic polycarbonate sheets, the functional layer being a polyvinyl alcohol polarizing film layer, a photochromic layer, or a combination. The protective film is a polyolefin resin film that includes at least two layers: a base layer formed of a polypropylene having a melting point equal to or higher than a glass transition temperature of the aromatic polycarbonate and an adhesive layer on one surface of the base layer and being a resin composition containing a polyolefin rubber and a polyolefin having a melting point lower than the glass transition temperature but equal to or higher than 15° C. lower than the glass transition temperature; or at least three layers: the aforementioned two layers and an intermediate layer between the base layer and the adhesive layer.

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