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:
Jul. 08, 2014
Filed:
Oct. 07, 2011
Shigenobu Ikenaga, Chiba, JP;
Fumito Takeuchi, Chiba, JP;
Keiji Watanabe, Ichihara, JP;
Jun Tokuhiro, Shinagawa-ku, JP;
Takanobu Murofushi, Hitachinaka, JP;
Kazuhiro Yarimizu, Fujisawa, JP;
Tomoaki Ito, Ichihara, JP;
Nobuhiro Maruko, Ichihara, JP;
Shigenobu Ikenaga, Chiba, JP;
Fumito Takeuchi, Chiba, JP;
Keiji Watanabe, Ichihara, JP;
Jun Tokuhiro, Shinagawa-ku, JP;
Takanobu Murofushi, Hitachinaka, JP;
Kazuhiro Yarimizu, Fujisawa, JP;
Tomoaki Ito, Ichihara, JP;
Nobuhiro Maruko, Ichihara, JP;
Mitsui Chemicals, Inc., Minato-ku, Tokyo, JP;
Mitsui Chemicals Tohcello, Inc., Chiyoda-ku, Tokyo, JP;
Abstract
Disclosed is an encapsulating material for solar cell containing an ethylene/α-olefin copolymer satisfying the following requirements (a1) to (a4): (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol % and the content ratio of structural units derived from α-olefin having 3 to 20 carbon atoms is from 10 to 20 mol %; (a2) MFR is from 10 to 50 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cmas measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.