Anti-settling agents for pigmented aqueous lacquer and process for the manufacture of said agents
AssigneeHenkel AG & Co. KGaA
InventorsHeinz Linden, Wolfgang Gress, Wilhelm Offermann
Life of this patent
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Abstract
Water-dispersible (including water-soluble) salts of water-soluble amines with the anionic products formed by reacting at 200.degree. C. to 250.degree. C. a substantially neutral ester of a C.sub.14-20 saturated fatty alcohol with an ethylene-dicarboxylic acid which has been reacted with about 1/7 to 1/35 of its weight of a ethylenedicarboxylic compound of acidic character (for example maleic acid) are efficient agents for inhibiting the deposition of pigment in pigmented aqueous lacquers. Organic solutions of the salts are storage-stable. The salts can be incorporated into the lacquer during formulation of the lacquer or at a later point.
Claims23
A water-dispersible amine salt of the reaction product of a substantially neutral ester of a C.sub.14-20 ethylenically unsaturated fatty alcohol with an .alpha., .beta.-unsaturated-ethylenedicarboxylic acid with about 1/7 to 1/35 of its weight of an .alpha., .beta.-unsaturated ethylenedicarboxylic compound of acidic character, said reaction product being formed by heating said neutral ester and said ethylenedicarboxylic compound at 200.degree. C. to 250.degree. C. for about 1 to 25 hours;
- said ethylenedicarboxylic acid and said ethylenedicarboxylic compound each containing not more than six carbon atoms.
An amine salt of the reaction product of (i) a substantially neutral ester prepared by reacting mixtures of mono- and poly- ethylenically unsaturated fatty alcohols of various chain lengths having 14 to 20 carbon atoms and containing some saturated alcohols with an .alpha., .beta.-unsaturated ethylenedicarboxylic acid with (ii) about 1/7 to 1/35 of its weight of an .alpha., .beta.-unsaturated ethylenedicarboxylic compound of acidic character, said reaction product being formed by heating said neutral ester and said ethylenedicarboxylic compound at 200.degree. C to 250.degree. C for about 1 to 25 hours;
- said ethylenedicarboxylic acid and said ethylenedicarboxylic compound each containing not more than six carbon atoms.
Dependencies are inferred from the claim text.