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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 10074760 B1

PDFFull Text
Date of Patent:
Sep. 11, 2018

Filed:

Mar. 19, 2015

Solar cell back sheet and solar cell module

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Takashi Arai, Otsu, JP;

Michiko Minomo, Otsu, JP;

Takashi Sato, Tokyo, JP;

Takao Amioka, Otsu, JP;

Assignee:

Toray Industries, Inc., , JP;

Attorney:

DLA Piper LLP (US)

Primary Examiner:

Ramsey E Zacharia

Int. Cl.
CPC ...
H01L 31/049 (2014.01); H01L 31/18 (2006.01); B32B 27/26 (2006.01); B32B 27/30 (2006.01); B32B 27/40 (2006.01); B32B 27/20 (2006.01); B05D 3/02 (2006.01); B32B 27/36 (2006.01); B32B 27/08 (2006.01);
U.S. Cl.
CPC ...
H01L 31/049 (2014.12); B05D 3/0254 (2013.01); B32B 27/08 (2013.01); B32B 27/20 (2013.01); B32B 27/26 (2013.01); B32B 27/308 (2013.01); B32B 27/36 (2013.01); H01L 31/18 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2264/102 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/712 (2013.01); B32B 2457/12 (2013.01); Y02E 10/50 (2013.01);
Abstract

A back sheet for a photovoltaic module includes a single substrate film and a layer C, the layer C contains an acrylic resin as a major component, the substrate film including a layer A and a layer B, wherein the layer A contains a polyester resin as a major component, contains a white pigment in an amount of 5.0% by mass to 25% by mass, has a thickness of 5 μm or more, and is disposed on another surface of the back sheet, and the layer B contains a polyester resin as a major component, contains a white pigment in an amount of 1.0% by mass to less than 5.0% by mass based on the total amount of the layer B, and has a thickness accounting for 70% or more of the total thickness of the back sheet. The layer C may be made of a composition of an acrylic resin having a reactive functional group, a protected isocyanate compound, and an unprotected isocyanate compound.

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