Intumescent polymer compositions
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United States of America Patent
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Oct 14, 2003
Grant Date -
N/A
app pub date -
Aug 4, 2000
filing date -
Aug 6, 1999
priority date (Note) -
Expired
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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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