Invention Grant
US08525017B2 Sealing material for solar battery, sheet for sealing solar battery, and solar battery module using the same
有权
太阳能电池用密封材料,太阳能电池密封用片及使用其的太阳能电池模块
- Patent Title: Sealing material for solar battery, sheet for sealing solar battery, and solar battery module using the same
- Patent Title (中): 太阳能电池用密封材料,太阳能电池密封用片及使用其的太阳能电池模块
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Application No.: US12085511Application Date: 2006-11-24
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Publication No.: US08525017B2Publication Date: 2013-09-03
- Inventor: Ryoji Mori , Takashi Nakagawa , Hiromasa Marubayashi
- Applicant: Ryoji Mori , Takashi Nakagawa , Hiromasa Marubayashi
- Applicant Address: JP Tokyo
- Assignee: Mitsui Chemicals, Inc.
- Current Assignee: Mitsui Chemicals, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2005-340362 20051125
- International Application: PCT/JP2006/323394 WO 20061124
- International Announcement: WO2007/061030 WO 20070531
- Main IPC: H01L31/042
- IPC: H01L31/042 ; H01L31/00

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).
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