Carboxyl group-terminated polyesteramides
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United States of America Patent
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Apr 26, 1994
Grant Date -
N/A
app pub date -
Dec 16, 1991
filing date -
Dec 21, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Carboxyl group-terminated polyesteramides comprising the reaction products of at least one diamine and a carboxyl group-terminated polyester selected from (a) a polyester prepared from at least one aliphatic and/or cycloaliphatic dicarboxylic acid and at least one polyol; (b) a polyester which is the reaction product of (i) at least one aliphatic and/or cycloaliphatic dicarboxylic acid and/or isophthalic acid, with (ii) a hydroxyl group-terminated polyester, and (c) a polyester which is the reaction product of (i) at least one aliphatic and/or cycloaliphatic dicarboxylic acid, with (ii) a polyester containing both terminal hydroxyl and terminal carboxyl groups, prepared by esterification of (iii) isophthalic acid with (iv) a hydroxyl group-terminated polyester, processes for preparing the same, and the powdered thermosetting compositions based on these polyesteramides and polyepoxy compounds for the production of powdered varnishes and paints which can be applied with a triboelectric spray gun.
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