| abstract |
Nonaqueous compositions formulated for spray application to a substrate wherein the composition contains a foam-reducing quantity of at least one base-catalyzed reaction product comprising the following reactants: n A) at least one compound of formula I n R 1 (X) 3 (I) n wherein each X group is a halogen atom or one X group is a halogen atom and two X groups represent an epoxy oxygen atom, which is attached to two adjacent carbon atoms in the R 1 group to form an epoxy group, and R 1 is an alkanetriyl group containing from 3 to 10 carbon atoms; and n B) at least one compound having the formula II n R 2 X(AO) n Y (II) n wherein R 2 is a substituted or unsubstituted, saturated or unsaturated, organic group having from 1 to 36 carbon atoms; X is —O—, —S—, or —NR 3 — where R 3 is hydrogen or a C 1 -C 18 alkyl group; each AO group is independently an ethyleneoxy, 1,2-propyleneoxy, or 1,2-butyleneoxy group, n is a number of from 0 to 200; and Y is hydrogen, or Y can be a mercapto group or an amino group or a C 1 -C 6 alkylamino group in place of a terminal —OH group, provided that when Y is mercapto or an amino group or a C 1 -C 6 alkylamino group, n is at least 1; n wherein the mole ratio of the linking compound A) to B) is from 0.1:1 to 5:1; and methods for their application. |