EXPANDABLE VINYL AROMATIC POLYMERS
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United States of America Patent
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Issued Date -
Dec 5, 2013
app pub date -
Oct 18, 2011
filing date -
Oct 18, 2010
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Abandoned
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Abstract
The present invention is an expandable vinyl aromatic polymer which comprises:
- a) a matrix of a vinyl aromatic polymer,b) 1-10% by weight calculated with respect to the polymer (a), of an expanding agent englobed in the polymeric matrix,c) 0.1 to 5% by weight calculated with respect to the polymer (a), of PiB (polyisobutene), homogeneously distributed in the polymeric matrix,d) 0-20% by weight, calculated with respect to the polymer (a), of one or more fillers, other than PiB, homogeneously distributed in the polymeric matrix,
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