Abstract: A water dispersion comprising i) up to about 50% by weight of a water-dispersible low molecular weight polyester having a number average molecular weight in the range of about 850-2500 and preferably 1100-1800 and an acid value in the range of about 40-85 milligrams of KOH/gram of said polyester (millig/g) and preferably in the range of about 45-65 millig/g, which comprises: (1) a non-linear polyester backbone having an acid value in the range of about 5-15 millig/g and preferably about 8-12 millig/g comprising the reaction product of an aliphatic polyol, an aromatic dicarboxylic acid, and a monocarboxylic acid and (2) pendant moieties of a polycarboxylic acid having at least one free carboxylic acid group and at least one ester linkage to said backbone, ii) about 0.5% to 4% by weight, as based upon said polyester, of a chelated titanate, and iii) a fugitive base, is disclosed to provide a useful warp sizing composition for synthetic yarn fibers.

Abstract: In a water soluble enamel paint composition comprising a water soluble polyester resin, the incorporation of a rosin-ester resin, such as PENTALYN.RTM. 255, into the polyester resin improves the water resistance and drying time of the resulting enamel paint.