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:
Sep. 03, 2013
Filed:
Nov. 24, 2006
Ryoji Mori, Ichihara, JP;
Takashi Nakagawa, Ichihara, JP;
Hiromasa Marubayashi, Chigasaki, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
[Task] To provide a solar battery sealing material obtained by using an olefin-based (co)polymer, which is excellent in flexibility, stress-absorbing property, transparency, and impact-resistant strength at low temperature, and with which the productivity is improved by omitting a cross-linking treatment if necessary. [Solving Means] A solar battery sealing material containing 1 to 40 parts by weight of polypropylene (i) which has a propylene unit of more than 90 mol %; and 60 to 99 parts by weight of a propylene.ethylene-based copolymer (ii) which has a propylene unit of 45 to 90 mol %, an ethylene unit of 10 to 25 mol %, and an α-olefin unit (a) having 4 to 20 carbon atoms of 0 to 30 mol % ((i)+(ii)=100 parts by weight). The solar battery sealing material further contains 5 to 95 parts by weight of an ethylene.α-olefin copolymer (B), based on 95 to 5 parts by weight of the total amount of (i) and (ii) ((i)+(ii)+(B)=100 parts by weight).