发明授权
- 专利标题： Extruded foams made with polylactides that have high molecular weights and high intrinsic viscosities
- 专利标题（中）： 由具有高分子量和高特性粘度的聚交酯制成的挤出泡沫
-
申请号： US12988810申请日： 2009-04-24
-
公开(公告)号： US08722754B2公开(公告)日： 2014-05-13
- 发明人: James Nangeroni , Jed Richard Randall
- 申请人： James Nangeroni , Jed Richard Randall
- 申请人地址： US MN Minnetonka
- 专利权人： NatureWorks LLC
- 当前专利权人： NatureWorks LLC
- 当前专利权人地址： US MN Minnetonka
- 代理机构： Gary C Cohn PLLC
- 国际申请： PCT/US2009/041641 WO 20090424
- 国际公布： WO2009/134688 WO 20091105
- 主分类号： C08J9/00
- IPC分类号： C08J9/00 ; C08J9/12
摘要：
This invention provides an economical process for extruding a PLA resin into a low density foam with a high closed cell content. Excellent quality, low density foam is produced easily and reproducibly. The PLA resin in the foam has a weight average molecular weight of at least 500,000 and an intrinsic viscosity of at least 1.4 deciliters/gram.