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    • 5. 发明授权
    • Sealing material for solar battery, sheet for sealing solar battery, and solar battery module using the same
    • 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
    • US08525017B2
    • 2013-09-03
    • US12085511
    • 2006-11-24
    • Ryoji MoriTakashi NakagawaHiromasa Marubayashi
    • Ryoji MoriTakashi NakagawaHiromasa Marubayashi
    • H01L31/042H01L31/00
    • C08L23/10C08L23/06C08L23/14C09K3/10C09K2200/0617C09K2200/062H01L31/0481Y02E10/50C08L2666/06
    • [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).
    • [任务]提供通过使用在低温下的柔软性,应力吸收性,透明性和耐冲击强度优异的烯烃系(共)聚合物而得到的太阳能电池密封材料,生产率为 如果需要,通过省略交联处理来改进。 [解决方案]一种含有1〜40重量份丙烯单元大于90摩尔%的聚丙烯(i)的太阳能电池密封材料; 和60〜99重量份丙烯单元为45〜90摩尔%,乙烯单元为10〜25摩尔%的丙烯·乙烯系共聚物(ii)和α-烯烃单元(a),其具有 4〜20个碳原子数为0〜30摩尔%((i)+(ii)= 100重量份)。 基于95〜5重量份的(i)和(ii)((i)+(ⅰ))的总量,太阳能电池密封材料还含有5〜95重量份的乙烯-α-烯烃共聚物(B) (ⅱ)+(B)= 100重量份)。