Low-Formaldehyde binders
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United States of America Patent
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-
May 16, 1989
Grant Date -
N/A
app pub date -
Feb 22, 1988
filing date -
Mar 11, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A low-formaldehyde binder consists essentially of (A) from 5 to 80% by weight of a water-soluble condensation product of carbonyl number 0-200 which has been prepared by alkaline condensation from 0.1 to 0.4 mole of an aliphatic or cycloaliphatic condensable ketone and 1 mole of formaldehyde, and (B) from 20 to 95% by weight of 4,5-dihydroxyimidazolidin-2-one and/or an unetherified, partially etherified or completely etherified condensation product thereof with an aliphatic monoaldehyde or dialdehyde.
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