Graft copolymers containing: (1) a phenolic resin; and (2) a poly(alkylene oxide) chain pendant to the phenolic resin, selected such that the graft copolymer has a solubility of no more than about 10 g/L in water, are taught. The graft copolymers are useful in coatings compositions with a curing agent, a solvent, and optionally an epoxy resin. The curable compositions have improved flexibility and/or solvent resistance. They are particularly useful in can coatings.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a divisional application of application Ser. No. 08/248,797, filed May 25, 1994, U.S. Pat. No. 5,426,139.
Branched polymer defoamers for pigment dispersants. The branched polymers are the reaction products of a linking agent defined by formula (I): wherein each Y group is a halogen atom or one Y group is a halogen atom and two Y groups together represent an epoxy oxygen atom, which is attached to two adjacent carbon atoms in the R group to form an epoxy group, and R is an alkanetriyl group containing from 3 to 10 carbon atoms, and b) at least one compound having the formula (II) wherein R.sup.1 is a substituted or unsubstituted, saturated or unsaturated, organic group having from 4 to 36 carbon atoms; x is --O--, --S--, or --NR.sup.2 --where R.sup.2 is hydrogen or a C.sub.1 -C.sub.4 alkyl group; Z is hydrogen, --NHR.sup.2 in place of a terminal --O-- group wherein R.sup.2 has the meaning given above, or --SH, in which the --SH group is present in place of a terminal --O-- group; n is a number of from 0 to 100, e.g., from 1 to 100; m is a number of from 0 to 50 e.g., from 1 to 50; and p is a number of from 0 to 50 e.g., from 1 to 50; provided that the sum of n, m, and p is at least 1; and wherein EO, PO and BO groups when present can be in random and/or block distribution and can be in any order with respect to the X group.
