发明名称 |
NANOPOROUS POLYMERIC FOAM HAVING HIGH POROSITY |
摘要 |
Prepare a polymeric foam article having a thermoplastic polymer matrix defining multiple cells therein, wherein the polymeric foam article has the following characteristics: (a) the thermoplastic polymer matrix contains dispersed within it nano-sized nucleating additive particles that have at least two orthogonal dimensions that are less than 30 nanometers in length; (b) possesses at least one of the following two characteristics: (i) has an effective nucleation site density of at least 3 x 1014 sites per cubic centimeter of pre-foamed material; and (ii) has an average cell size of 300 nanometers or less; and (c) has a porosity percentage of more than 50 percent by rapidly expanding at a foaming temperature a foamable polymer composition containing the nucleating additive and a blowing agent containing at least one of carbon dioxide, nitrogen and argon.
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申请公布号 |
CA2780126(A1) |
申请公布日期 |
2011.06.03 |
申请号 |
CA20102780126 |
申请日期 |
2010.11.01 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
COSTEUX, STEPHANE;ZHU, LINGBO;WEIKART, CHRISTOPHER;KALANTAR, THOMAS |
分类号 |
C08J9/00 |
主分类号 |
C08J9/00 |
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