申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP2107085A1
公开(公告)日:2009-10-07
An ultraviolet-curable silicone composition for a release paper including (A) 100 parts by mass of a specific organopolysiloxane having a polymerization degree of 8 to 20 and containing one epoxy group, and (C) an effective quantity of an onium salt photoinitiator. In a preferred embodiment, the composition further includes (B) 10 to 1,000 parts by mass of at least one specific organopolysiloxane containing a plurality of epoxy groups. In another preferred embodiment, the composition has a viscosity of not more than 100 mPa·s. The composition has a peel strength that exhibits a positive dependency on the peel speed when peeled from a hot-melt pressure-sensitive adhesive, and can therefore be used to produce a release paper capable of reducing peeling noise. Further, because the composition has a low viscosity, it exhibits excellent wetting of substrates having significant unevenness, even in a solventless form.
一种用于离型纸的紫外线固化有机硅组合物,包括(A)100 重量份的聚合度为 8 至 20 且含有一个环氧基团的特定有机聚硅氧烷,以及(C)有效量的铟盐光引发剂。在一个优选的实施方案中,该组合物还包括 (B) 10 至 1,000 质量份的至少一种含有多个环氧基团的特定有机聚硅氧烷。在另一个优选的实施方案中,组合物的粘度不超过 100 mPa-s。当从热熔压敏胶上剥离时,该组合物的剥离强度与剥离速度呈正相关,因此可用于生产能够降低剥离噪音的离型纸。此外,由于该组合物的粘度较低,即使在无溶剂状态下,它也能很好地润湿有明显不平整的基材。