A multilayer protective film comprising a first layer, a second layer and a PSA layer. The first layer at least comprises a polyester-based polyurethane, a polycarbonate-based polyurethane or a combination or blend of both. The second layer at least comprises a polycaprolactone-based thermoplastic polyurethane. The PSA layer comprises a pressure sensitive adhesive. One major surface of the first layer is bonded to one major surface of the second layer, and the PSA layer is bonded to an opposite major surface of the second layer such that the second layer is sandwiched between the first layer and the PSA layer.
申请公布号
WO2006118883(A2)
申请公布日期
2006.11.09
申请号
WO2006US15699
申请日期
2006.04.26
申请人
3M INNOVATIVE PROPERTIES COMPANY;HO, CHARLIE, C.;HALFORD, KENNETH, J.