Resinous salts, their preparation, and their use in coatings

Details Resinous salts, their preparation, and their use in coatings Resinous salts, their preparation, and their use in coatings

C - Chemistry, Metallurgy

08

G

117/113, 402/40,

C08G 14/12 (2006.01) C08G 14/04 (2006.01) C08G 14/14 (2006.01) C09D 5/02 (2006.01)

Patent

CA 1196015

ABSTRACT OF THE DISCLOSURE Resinous salts, prepared by thioalkylation or sulfoalkylation of A phenol obtained by advancement of a polyepoxide, followed by at least partial neutralisation, have the general formula Image where R- represents a group of formula -S-R1-COO or a group of formula -SO3- ; R1 represents an aliphatic, aromatic or araliphatic divalent group which may contain a further group -COO-M+; R2 represents -H or alkyl; one of R3 and R31 represents a hydroxyl group and the other represents -H, halogen, alkyl, or alkenyl; each R4 represents -H, halogen, alkyl, or alkenyl; R5 represents -H, halogen, alkyl, alkenyl, or a group -CH(R2)OH, -CH(R2)OR8, or -CHR2-R-M+; R6 represents the residue of a polyepoxide, preferably of average mol. wt. 1000-5000; each of the groups R7, which may be the same or different, represents -H or a covalent bond linked to the group R6; R8 represents alkyl or alkoxyalkyl; R9 denotes the residue of an optional terminating group; 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 cation derived from an alkali metal, ammonia, an amine or one valence of a polyvalent cation, at least 25% of the ions being a said cation. Compositions comprising these salts and, if required, a phenoplast, an aminoplast, or a 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.

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