Coating agents of acrylic copolymer and polyester with tertiary amino groups and epoxy resin
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United States of America Patent
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Feb 1, 1994
Grant Date -
N/A
app pub date -
Aug 31, 1990
filing date -
Mar 2, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to a coating agent containing A) a component containing carboxyl and tertiary amino groups and a polyepoxy resin B). A) consists of 10 to 90% by weight of a carboxyl- and amino-containing polyacrylate (A1) having an acid number from 20 to 140 and an amine number from 5 to 60 and 90 to 10% by weight of a carboxyl- and amino-containing polyester (A2) having an acid number from 10 to 160 and an amine number from 3 to 90. (A2) is obtainable by reaction of a) polycarboxylic acids or anhydrides thereof, if desired together with monocarboxylic acids, b) polyols, if desired together with monools, and c) further modifying components and, if desired, d) a component which reacts with the reaction product from a), b) and possibly c), with the proviso that the final product contains tertiary amino groups originating from component a) and/or b) and/or d), the sum of components (A1) to (A2) being 100% by weight.
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