Intumescent polymer compositions
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United States of America Patent
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Jun 14, 2005
Grant Date -
Nov 13, 2003
app pub date -
Jun 3, 2003
filing date -
Aug 6, 1999
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Abstract
An intumescent polymer composition includes a matrix polymer, an acid catalyst source, a nitrogen source and an ionic phyllosilicate synergist having substantial cationic exchange capacity. Particularly preferred ionic phyllosilicates are montmorillonoids whereas pentaerythritol phosphate is a preferred acid catalyst source: ##STR1##
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