发明名称 |
MULTILAYER THERMOPLASTIC SHEET MATERIALS AND THERMOFORMED ARTICLES PREPARED THEREFROM |
摘要 |
The present invention provides multilayer sheet structures especially suited for thermoforming applications such as refrigerator cabinet and door liners comprising a surface non-foamed layer A and a surface foamed layer B having a total sheet thickness of from about 0.5 to about 20 millimeters (“mm”). Improvements in thermoformability, including cycle time reduction and polymer and energy savings, are provided. Preferably the non-foamed thermoplastic polymer surface layer (A) has a thickness of from about 0.25 to about 6 millimeters and the foamed thermoplastic polymer surface layer (B) together with any other foamed polymer layers have a total density reduction of at least about five (5) weight percent and have a total thickness greater than the total thickness of the non-foamed layer A together with any other non-foamed layers. Also provided are improvements in the thermoforming process, thermoformed articles, processes for providing thermally insulating articles and thermally insulating articles. |
申请公布号 |
EP2318208(A1) |
申请公布日期 |
2011.05.11 |
申请号 |
EP20090791639 |
申请日期 |
2009.08.19 |
申请人 |
STYRON EUROPE GMBH |
发明人 |
MEGALLY, ALEXANDRA;VOSSEN, ROELAND |
分类号 |
B32B27/00;B32B5/18;F25D23/08 |
主分类号 |
B32B27/00 |
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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