发明名称 |
Multi-layer sheet having a weatherable surface layer |
摘要 |
A multi-layer sheet and a process for producing the sheet are disclosed. The sheet can comprise a first polymer layer comprising a weatherable film of polyvinyl fluoride (PVF) or polyvinylidene fluoride (PVDF) having an adhesive coating on one side; second pigmented polymer layer extruded onto the adhesive coating of the first polymer layer; and optionally a third extruded thermoformable polymer backing layer. The process can comprise combining a pigmented polymer onto the adhesive coating surface of the weatherable film of PVF or PVDF, passing the resulting structure into a nip of two rolls under pressure and subsequently an optional third thermoformable polymer backing layer is extruded or laminated onto the pigmented polymer layer.
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申请公布号 |
US7488399(B2) |
申请公布日期 |
2009.02.10 |
申请号 |
US20070867286 |
申请日期 |
2007.10.04 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
SMILLIE BENJAMIN ANDREW |
分类号 |
B29C47/00;B32B5/16;B32B27/08;B32B27/30 |
主分类号 |
B29C47/00 |
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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