申请人:Ikenaga Shigenobu
公开号:US20130233376A1
公开(公告)日:2013-09-12
A solar-cell sealant that has excellent properties such as transparency, flexibility, adhesiveness, heat resistance, appearance, cross-linking characteristics, electrical characteristics, and calenderability. A solar-cell sealant that contains an ethylene/α-olefin/unconjugated-polyene copolymer satisfying requirements (a1) through (a3). Requirement (a1) is that constituent units derived from ethylene constitute 80-90 mol %, constituent units derived from C3-20 α-olefin constitute 9.99-19.99 mol %, and constituent units derived from an unconjugated polyene constitute 0.01-5.0 mol % of said copolymer. Requirement (a2) is that the MFR of said copolymer, as measured in accordance with ASTM D1238 at 190° C. under a 2.16 kg load, be at least 2 g/10 min. and less than 10 g/10 min. Requirement (a3) is that the Shore A hardness of said copolymer, as measured in accordance with ASTM D2240, be 60 to 85.
一种太阳能电池密封剂,具有透明度、柔韧性、粘附性、耐热性、外观、交联特性、电特性和卷取性等优良性能。该太阳能电池密封剂包含满足要求(a1)至(a3)的乙烯/α-烯烃/非共轭聚烯共聚物。要求(a1)是,乙烯衍生的组分单元占80-90摩尔%,C3-20α-烯烃衍生的组分单元占9.99-19.99摩尔%,非共轭聚烯衍生的组分单元占0.01-5.0摩尔%。要求(a2)是,按照ASTM D1238在190℃下施加2.16kg载荷测量的该共聚物的熔体流率至少为2g/10min,且小于10g/10min。要求(a3)是,按照ASTM D2240测量的该共聚物的Shore A硬度为60至85。