Fire retardant polymer resin
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United States of America Patent
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Apr 11, 1989
Grant Date -
N/A
app pub date -
Feb 18, 1988
filing date -
Feb 18, 1988
priority date (Note) -
Expired
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Abstract
A flame-retardant polymer is created by forming a first resin typically by reacting resorcinol with furfural in a ratio of one mole of the former to less than a mole of the latter in the presence of an alkaline catalyst. A resole is then formed by reacting typically phenol with formaldehyde in a ratio of one mole of phenol to more than a mole of the aldehyde in the presence of an alkaline catalyst. The first resin and resole are mixed together with a powered oxyborate compound such as zinc borate and allowed to polymerize to form the polymer.
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