C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
260/514.5, 260/5
C09D 5/44 (2006.01)
Patent
CA 1176655
ABSTRACT OF THE DISCLOSURE Carboxylate salts, prepared by a Mannich reaction and ureful in the preparation of water-borne coatings, have the general formula Image vhere Rl represents an aliphatic, aromatic, or araliphatic divalent group which may contain a further -COO-M+; R2 represents -H, -CH(R3)N(R10)RlCOO-M+, or alkyl which may be substituted by -COO-M+, -CH(R3)OH, or -CH(R3)OR8, Rl and R2 containing together not more than one -COO-M+; R3 represents -H or alkyl; each R4 represents -H, halogen, alkyl, or alkenyl; R5 represents -H, halogen, alkyl, alkenyl, or a group -CH(R3)OH, -CH(R3)OR8, or -CHR3-NR2-R1-COO-M+; either R6 represents -H and R7 represents the residue of a polyepoxide, preferably of average mcl. wt. 1000-5000, or R6 represents a covalent bond linked to the group R7, and R7, together with the indicated hydroxyethylene group, forms a cycloaliphatic ring; R8 represents alkyl or alkoxyalkyl; R9 denotes the residue of an optional terminating group; R10 denotes -H, -COO-M+, or an alkyl group which may be substituted by -COO-M+, -CH(R3)OH, or -OCH(R3)OR8; m represents 1, 2, 3, or 4; n and p represent zero or 1, X represents alkylene, carbonyl, sulfonyl, oxygen, sulfur, or a valence bond; and M+ represents a hydrogen ion or a monovalent cation derived from an alkali metal, ammonia, or an amine, at least 25% of the ions being a said monovalent cation. Compositions comprising these salts and, if required, a phenoplast, an aminoplast, or blocked polyisocyanate, are stable when dispersed in water, usually with the aid of a minor amount of an organic solvent, and may be used to form protective films, especially for metal containers.
388521
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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