发明名称 |
Thermoformed article made from renewable polymer and heat-resistant polymer |
摘要 |
The present invention provides articles comprising a thermoformable composite comprising: a core comprising a renewable polymer having: (a) a Ts value of up to about 90° C.; and (b) a heat distortion index of up to about 90° C.; and a heat-resistant outer layer substantially surrounding the core and comprising a heat-resistant polymer having: (a) a Ts of greater than about 60° C.; and (b) a heat distortion index of greater than about 50° C.; wherein the renewable polymer comprises at least about 60% by weight of the composite, and wherein the heat-resistant polymer has a Ts value and heat distortion index greater than that of the renewable polymer. The present invention also provides methods for coextruding the heat-resistant polymer outer layer and renewable polymer core to provide a thermoformable composite.
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申请公布号 |
US2009155611(A1) |
申请公布日期 |
2009.06.18 |
申请号 |
US20070002495 |
申请日期 |
2007.12.17 |
申请人 |
TEDFORD JR RICHARD A;LI WEI |
发明人 |
TEDFORD, JR. RICHARD A.;LI WEI |
分类号 |
B32B27/06 |
主分类号 |
B32B27/06 |
代理机构 |
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