发明名称 |
METHOD OF MAKING MULTILAYER POLYURETHANE PROTECTIVE FILM |
摘要 |
A method of making a multilayer protective film. The method comprises: (a) forming a PU layer comprising an at least partially crosslinked polyurethane, the at least partially crosslinked polyurethane comprising at least one of a polyester-based polyurethane or a polycarbonate-based polyurethane; (b) forming a TPU layer comprising a polycaprolactone-based thermoplastic polyurethane; (c) forming a PSA layer comprising a pressure sensitive adhesive; (d) bonding one major surface of the PU layer to one major surface of the TPU layer; and (e) bonding the PSA layer to an opposite major surface of the TPU layer; wherein the TPU layer is sandwiched between the PU layer and the PSA layer. The multilayer film may be used to protect painted surfaces of vehicle body parts.
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申请公布号 |
US2010032082(A1) |
申请公布日期 |
2010.02.11 |
申请号 |
US20070443871 |
申请日期 |
2007.10.02 |
申请人 |
HO CHARLIE C;HALFORD KENNETH J;JOHNSON MICHAEL A;FEISEL BRYAN C;OSTERTAG EUGENE C;TAYLOR ROBERT D |
发明人 |
HO CHARLIE C.;HALFORD KENNETH J.;JOHNSON MICHAEL A.;FEISEL BRYAN C.;OSTERTAG EUGENE C.;TAYLOR ROBERT D. |
分类号 |
B32B27/40 |
主分类号 |
B32B27/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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