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.:
Date of Patent:
May. 20, 2014
Filed:
Apr. 19, 2011
Atsushi Watanabe, Tokyo, JP;
Masanori Hashimoto, Tokyo, JP;
Atsushi Watanabe, Tokyo, JP;
Masanori Hashimoto, Tokyo, JP;
Techno Polymer Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a backside protective film () for a solar cell, which sequentially has a first resin layer (), a second resin layer () and a third resin layer (). Both the first resin layer and second resin layer include a rubber containing reinforced aromatic vinyl-based resin having a maximum glass transition temperature of 90-120° C. and have a thickness of 10-300 μm. The first resin layer includes an infrared transmissible coloring agent, while the second resin layer includes a white-based coloring agent. The third resin layer includes a saturated polyester resin and has a thickness of 10-300 μm. The third resin layer has a dimension change ratio between before and after the film is left to stand still at a temperature of 135° C. for 30 minutes of ±0.5% or less.