Zwitterion polymer for water borne coatings
AssigneeInternational Minerals & Chemical Corp.
InventorsZeno W. Wicks, Milton E. Woods, Chiew-Wah Koay
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Abstract
A water-dilutable polymer for use in water-borne coatings comprising the half ester zwitterion reaction product of a polymer containing cyclic acid anhydride groups with an alkanolamine of the formula ##STR1## where R is hydrogen or hydroxy, R.sup.1 is hydrogen, hydroxy or methyl and can be the same or different, and R.sup.2 is hydrogen or an aliphatic hydrocarbon group of from 1 to 3 carbon atoms.
Claims15
A polymer useful in water-borne coatings comprising the half ester zwitterion reaction product of a polymer containing acid anhydride groups with an alkanolamine of the formula ##STR5## where R is hydrogen or hydroxy and R.sup.1 is hydrogen, hydroxy or methyl and can be the same or different, and R.sup.2 is hydrogen.
A polymer obtained by reacting (a) a copolymer by reacting the vinyl ester of trimellitic anhydride with an alkyl acrylate or alkyl methacrylate, or mixture thereof, the alkyl group having from 1-4 carbon atoms, and (b) an alkanolamine of the formula ##STR6## where R is hydrogen or hydroxy and R.sup.1 is hydrogen, hydroxy or methyl and can be the same or different, and R.sup.2 is hydrogen, an aliphatic hydrocarbon group or aryl.
A polymer useful in water-borne coatings comprising the half ester zwitterion reaction product of (a) a polymer prepared from a maleated epoxy ester, a maleated drying oil, styrenemaleic anhydride, maleinized rosin, 4-palmityl-1,2-butyric anhydride and 3-methoxy-1,2-butyric anhydride with (b) an alkanolamine of the formula ##STR7## where R is hydrogen or hydroxy, R.sup.1 is hydrogen, hydroxy or methyl and can be the same or different, and R.sup.2 is hydrogen, an aliphatic hydrocarbon group or aryl.
Dependencies are inferred from the claim text.