| 摘要 |
A compound having the formula: (x(CH2=CR<1>-C(O)O-)R<2>-(O-C(O)R<3>)y-O-C(O)-NH)n-R<4>, wherein R<1> is hydrogen or methyl, R<2> is an alkylene group or substituted alkylene group (typically having less than six carbon atoms, more typically two or three carbon atoms), R<3> is an alkylene group or substituted alkylene group (typically having less than ten carbon atoms, more typically from four to six carbon atoms), R<4> is the residue of an organic isocyanate (including trimerized isocyanates, but excluding isocyanate-functional prepolymers of active hydrogen compounds) having a functionality of n, n is an integer from two to four (typically two or three), x is an integer from one to three, and y is an integer from one to five, is provided. Also provided is a coating composition comprising a compound as set forth above and a method of coating a substrate comprising polymerizing a composition comprised of the compound set forth above while in contact with a substrate. Among the compounds which fall within the above formula are those in which R<1> is hydrogen, R<2> is an ethylene group, R<3> is a pentamethylene group, and R<4> is the residue of isophorone di-isocyanate (and n is two), tetramethylxylene di-isocyanate (and n is two), toluene di-isocyanate (and n is two), or trimerized hexamethylene di-isocyanate (and n is three), x is one and y is two.
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