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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 10896988 B1

PDFFull Text
Date of Patent:
Jan. 19, 2021

Filed:

Jan. 12, 2017

Laminated sheet and solar cell backsheet using same

Applicant:

Mitsui Chemicals, Inc., Tokyo, JP;

Inventors:

Koya Yoshimoto, Chiba, JP;

Kiminori Noda, Mobara, JP;

Makoto Egawa, Ichihara, JP;

Tatsuya Oku, Ichihara, JP;

Assignee:

MITSUI CHEMICALS, INC., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Lawrence D Ferguson

Int. Cl.
CPC ...
B32B 27/32 (2006.01); H01L 31/049 (2014.01); B32B 27/36 (2006.01); C08L 23/08 (2006.01); B32B 27/26 (2006.01); B32B 27/22 (2006.01); C08L 23/10 (2006.01); C08L 23/12 (2006.01); C08L 23/14 (2006.01); B32B 27/16 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/34 (2006.01);
U.S. Cl.
CPC ...
H01L 31/049 (2014.12); B32B 27/08 (2013.01); B32B 27/16 (2013.01); B32B 27/18 (2013.01); B32B 27/22 (2013.01); B32B 27/26 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); C08L 23/0815 (2013.01); C08L 23/10 (2013.01); C08L 23/12 (2013.01); C08L 23/14 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2250/24 (2013.01); B32B 2270/00 (2013.01); B32B 2274/00 (2013.01); B32B 2307/206 (2013.01); B32B 2307/21 (2013.01); B32B 2307/306 (2013.01); B32B 2307/3065 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/416 (2013.01); B32B 2307/71 (2013.01); B32B 2457/12 (2013.01); C08L 2203/204 (2013.01); Y02E 10/50 (2013.01);
Abstract

A laminated sheet of a two-layer sheet in which an L1 layer including 50 to 99 parts by mass of an ethylene-based polymer (E1) having a density of 0.890 to 970 kg/mand 1 to 50 parts by mass of a propylene-based polymer (P1) is in contact with an L2 layer including 50 to 100 parts by mass of a propylene-based polymer (P2) and 0 to 50 parts by mass of an ethylene-based elastomer (E2) having a density of equal to or more than 850 kg/mand less than 890 kg/m, in which the propylene-based polymer (P1) includes a propylene-based elastomer (P1a) including a propylene-derived constitutional unit and an ethylene-derived constitutional unit and/or a constitutional unit derived from an α-olefin having 4 to 20 carbon atoms, and having a melting point (Tm) that is lower than 120° C. or not observable; and a solar cell backsheet formed using the same.

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