Water reducible coating compositions
First Claim
1. An aqueous dispersion of a tertiary amine terminated polyether and a carboxylic acid functional polymer wherein the tertiary amine terminated polyether is the product of the reaction of the epoxy group of an epoxy resin with the hydroxy group of a hydroxy functional tertiary amine and the carboxylic acid functional polymer is present in an amount sufficient to render the combination water dispersible.
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Accused Products
Abstract
An aqueous dispersion of a tertiary amine terminated polyether and a carboxylic acid functional polymer. The tertiary amine terminated polyether is the product of the reaction of the epoxy group of an epoxy resin with the hydroxy group of a hydroxy functional tertiary amine and the carboxylic acid functional polymer is present in an amount sufficient to render the combination water dispersible.
A process for producing the aqueous dispersion is also described, together with coating compositions based on the dispersion. These coating compositions are particularly useful in the lining of metal containers for food and beverages.
15 Citations
19 Claims
- 1. An aqueous dispersion of a tertiary amine terminated polyether and a carboxylic acid functional polymer wherein the tertiary amine terminated polyether is the product of the reaction of the epoxy group of an epoxy resin with the hydroxy group of a hydroxy functional tertiary amine and the carboxylic acid functional polymer is present in an amount sufficient to render the combination water dispersible.
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14. A process for producing an aqueous dispersion of a tertiary amine terminated polyether and a carboxylic acid functional polymer which comprises:
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(a) reacting the epoxide groups of an epoxy resin with a hydroxy functional tertiary amine to form a tertiary amine terminated polyether, and (b) dispersing the tertiary amine terminated polyether in water with the aid of a carboxylic acid functional polymer in an amount sufficient to render the combination dispersible. - View Dependent Claims (15, 16)
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18. A coating composition comprising a stable dispersion in water of:
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(i) a tertiary amine terminated polyether which is in ionic association with (ii) a polymer derived, at least in part, from carboxylic acid functional monomers, and (iii) a crosslinking agent. - View Dependent Claims (19)
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Specification