Multilayer polyurethane protective films
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.
3M Innovative Properties Company
Y B Y Y B B B B B C B B B B B B C B C B B B C B C B B Y B C
Y10T B32B Y10T Y10T B32B B32B B32B B32B B32B C09J B32B B32B B32B B32B B32B B32B C09J B32B C09J B32B B32B B32B C09J B32B C09J B32B B32B Y10T B32B C09J
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Kenneth J. Charlie C.
Halford Ho