초록 ▼

The present invention relates generally to aqueous coating compositions comprising a resin component including a functional group-containing crosslinkable resin and, optionally, a curing/crosslinking agent for functional groups of the crosslinkable resin. More specifically, the resin component inclu

The present invention relates generally to aqueous coating compositions comprising a resin component including a functional group-containing crosslinkable resin and, optionally, a curing/crosslinking agent for functional groups of the crosslinkable resin. More specifically, the resin component includes, at least in part, a special anionically or anionically/non-ionically stabilized functional group-containing crosslinkable resin which can function as either the primary crosslinkable resin (self-emulsifying system) or as a reactive emulsifier for other lipophilic crosslinkable resins (stabilized system).

대표청구항 ▼

[ We claim:] [1.] An aqueous coating composition comprising (i) a resin component including a functional group-containing crosslinkable resin and, (ii) optionally, a curing/crosslinking agent for functional groups of the crosslinkable resin, wherein the resin component comprises at least a resin of

[ We claim:] [1.] An aqueous coating composition comprising (i) a resin component including a functional group-containing crosslinkable resin and, (ii) optionally, a curing/crosslinking agent for functional groups of the crosslinkable resin, wherein the resin component comprises at least a resin of the general formula (I): EQU (X).sub.m --(LPB)--(Y).sub.n (I) reinLPB designates a generally lipophilic backbone;X designates a functional group for crosslinking,Y designates a hydrophilic stabilizing group pendant from LPB, of the general formula (II); [ STR 6 ] wherein R designates the residue of a more than difunctional isocyanate after abstraction of the isocyanate groups andZ.sup.1 designates a group of the general formula (III): [ STR 7 ] wherein A designates the residue of an active hydrogen containing functional group selected from the group consisting of hydroxyl, mercapto, primary amino and secondary amino, after abstraction of an active hydrogen,R.sup.1 designates the residue of an H--A and carboxyl functional compound after abstraction of the H--A and carboxyl groups,p.gtoreq.1,q.gtoreq.1, andwherein at least a sufficient proportion of the carboxyl groups of (III) have been neutralized in order to render (I) water dilutable, andZ.sup.2 designates a group of the general formula (IV): [ STR 8 ] wherein A.sup.1 designates a group selected from an O atom and a group N--R.sup.3 ;R.sup.2 designates a polyoxyalkylene monoether group of the general formula (V): EQU [(CH.sub.2 --CHR.sup.4 --O).sub.b and or (CH.sub.2 --CH.sub.2 --O).sub.a ]--R.sup.5 (V) reinR.sup.3 designates a group or atom selected from the group consisting of (i) a C.sub.1 to C.sub.24 alkyl group, (ii) the residue of an organic group having 1 to 24 carbon atoms and a functional group reactive with an amino group, (iii) a polyoxyalkylene monoether group of the general formula (V), and (iv) an H atom,R.sup.4 designates a C.sub.1 to C.sub.4 alkyl group,a is 7-75,b is 0-25,.ltoreq. a+b.ltoreq.75,m is .gtoreq.1 andn is a number at least sufficient to render (I) water-dilutable upon at least partial neutralization of the carboxyl groups of (III), the productn.multidot.q.multidot.p is a number sufficient to result in 0.65 meq or fewer carboxyl groups per gram of the resin component, the productn.multidot.r.multidot.a is a number sufficient to result in an ethylene oxide content of 0.5-10 wt % based upon the weight of the resin component, and oreq. 15.