发明授权
US07977397B2 Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof
有权
可生物降解或生物基和合成聚合物的聚合物共混物及其泡沫
- 专利标题： Polymer blends of biodegradable or bio-based and synthetic polymers and foams thereof
- 专利标题（中）： 可生物降解或生物基和合成聚合物的聚合物共混物及其泡沫
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申请号： US12048467申请日： 2008-03-14
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公开(公告)号： US07977397B2公开(公告)日： 2011-07-12
- 发明人: Yunwa Wilson Cheung , David V. Dobreski , Richard Turner , Mark Wheeler , Y. Paul Handa
- 申请人： Yunwa Wilson Cheung , David V. Dobreski , Richard Turner , Mark Wheeler , Y. Paul Handa
- 申请人地址： US IL Lake Forest
- 专利权人： Pactiv Corporation
- 当前专利权人： Pactiv Corporation
- 当前专利权人地址： US IL Lake Forest
- 代理机构： Baker Botts LLP
- 主分类号： C08L25/00
- IPC分类号： C08L25/00 ; C08J9/12
摘要：
The present invention relates to compositions comprising blends of alkenyl aromatic polymers such as styrenic polymers (i.e. PS and HIPS) and bio-based or biodegradable polymers (i.e. PLA, PGA, PHA, PBS, PCL) compatibilized with styrene-based copolymers (i.e. styrene-ethylene-butylene-styrene (SEBS) block copolymers, maleated SEBS, styrene-maleic anhydride (SMA) copolymer, styrene-methyl methacrylate (SMMA) copolymer) or a mixture of two or more styrene-based copolymers such as SEBS and SMA. These novel compositions can be extruded and thermoformed to produce very low density food service and consumer foam articles such as plates, hinged lid containers, trays, bowls, and egg cartons with good mechanical properties.
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