发明名称 |
Inherently open-celled polypropylene foam with large cell size |
摘要 |
Foam a polymer blend of (a) a high melt strength polypropylene (HMS PP); (b) a linear or substantially linear polypropylene that has a melting point within ten degrees Celsius of (a), a melt flow rate that is significantly different than (a) and that is miscible with (a); and, optionally, (c) a polyethylene that is immiscible with (a) produces a polymeric foam having an average cell size of at least four millimeters and that has an inherent open-celled content of at least 40 percent. The HMS PP makes up 60 weight percent (wt %) or more and 90 wt % or less of the total combined weight of (a) and (b). Component (c) makes up 60 wt % or less of the total polymer blend weight.
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申请公布号 |
US7759404(B2) |
申请公布日期 |
2010.07.20 |
申请号 |
US20050663800 |
申请日期 |
2005.10.07 |
申请人 |
DOW GLOBAL TECHNOLOGIES INC. |
发明人 |
BURGUN SANDRINE;SUBRAMONIAN SURESH |
分类号 |
C08L47/00;C08F110/00;C08J9/00 |
主分类号 |
C08L47/00 |
代理机构 |
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