Patent ID: 7488433
Filing Date: 2009-02-10
Classification: C08K

Abstract:
1. A stabilizer composition comprising a zinc compound, a latent mercaptan, wherein the latent mercaptan is of formula (1): wherein a=0 or 1, m=0 or 1, n=0 or 1, and y=1-4 with the proviso that when y=1, z=1-4 and when y is greater than 1, z=1; R 1 is a monovalent, divalent, trivalent, or tetravalent C 1-400 alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, alkaryl, aralkyl, alkenylaryl, aralkenyl, hydroxyalkyl, dihydroxyalkyl, hydroxy(polyalkoxy)alkyl, alkoxyalkyl, hydroxyalkoxyalkyl, alkoxy(hydroxyalkyl), alkoxy(acyloxyalkyl), alkoxy(polyalkoxy)alkyl, alkoxy(polyalkoxy)carbonylalkyl, carboxyalkyl, acyloxyalkyl, acyloxy(hydroxyalkyl), acyloxyalkoxyalkyl, acyloxy(polyalkoxy)alkyl, benzoyloxy(polyalkoxy)alkyl, alkylenebis-(acyloxyalkyl), alkoxycarbonylalkyl, alkoxycarbonylalkylenyl, hydroxyalkoxycarbonylalkyl, hydroxy(polyalkoxy)carbonylalkyl, mercaptoalkyl, mercaptoalkenyl, mercaptoalkoxycarbonylalkyl, mercaptoalkoxycarbonylalkenyl, alkoxycarbonyl(amido)alkyl, alkylcarbonyloxy(polyalkoxy)carbonylalkyl, tetrahydopyranyloxy(polyalkoxy)carbonylalkyl, tetrahydropyranyloxyalkyl, hydroxyaryl, mercaptoaryl or carboxyaryl group; R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 are each independently a —H, —OH, —SH, acyl, C 1-52 alkyl, alkenyl, aryl, haloaryl, alkaryl, aralkyl, hydroxyalkyl, mercaptoalkyl, hydroxyaryl, alkoxyaryl, alkoxyhydroxyaryl, or mercaptoaryl group; X is aryl, haloaryl, alkaryl, aralkaryl, hydroxyaryl, dihydroxyaryl, cycloalkyl aryl, arylcycloalkyl, or a heteroatom, R 6 and R 7 may form a heterocyclic moiety in conjunction with X as nitrogen when a is 1 and m is 1, one of R 1 , R 3 , and R 5 may join with R 7 and X to form a heterocyclic moiety with X as a heteroatom selected from the group consisting of oxygen and sulfur when a=1 and m=0; with the proviso that when X is aralkaryl, z is 1 or 2, R 6 and R 7 are —OH, a=1, and m=1, and with the further proviso that when R 6 is —OH or —SH, z=1; a dihydropyridine, a polydihydropyridine, or a mixture thereof, wherein the dihydropyridine is of formula (2): wherein each R 19 is independently a C 1 to C 36 alkyl group, each R 18 is independently hydrogen, —OR 21 , —NHR 21 , or —NR 21 R 22 wherein each R 21 and R 22 are independently a substituted or unsubstituted C 1 -C 20 alkyl or C 2 -C 20 alkenyl group, each R 20 is independently hydrogen, oxygen, halogen, or a substituted or unsubstituted C 1 to C 36 alkyl, alkenyl, aryl, alkaryl, or aralkyl group, and R 26 is a hydrogen, a substituted or unsubstituted C 1 -C 20 alkyl, C 6 -C 36 aryl, or C 6 -C 36 alkaryl group, and wherein the polydihydropyridine is of formula (3): wherein A is a C 6-18 aryl or C 1-22 alkyl group that is unsubstituted or substituted with a C 1 -C 18 alkoxy, C 1 -C 18 alkylthio, hydroxy, acryloyloxy, methacryloyloxy, halogen, phenyl or naphthyl group, R 19 is independently a C 1 to C 36 alkyl group, a and b are a number from 0 to 20, c is 0 or 1, and d is a number from 1 to 6, with the proviso that d(a+b+c)>1 and (a+b)>0, R 24 and R 25 are each independently methylene, phenyl, or an alkylene group of the type (—C p H 2p -Q-) t C p H 2p —, wherein p is a number from 2 to 18, t is a number from 0 to 10, and Q is oxygen or sulfur, and R 26 is a hydrogen, a substituted or unsubstituted C 1 -C 20 alkyl, C 6 -C 36 aryl or C 6 -C 36 alkaryl group; and a beta-diketone wherein the beta-diketone is of formula (4): wherein R 27 is an alkyl group having greater than or equal to 10 carbon atoms, R 28 is phenyl group or phenyl group substituted with up to 3 lower alkyl groups, and R 29 and R 30 are each independently hydrogen, C 1 -C 18 alkyl groups, or C 1 -C 18 alkyl groups substituted with halogen, hydroxy, alkoxy, ester alkyl or alkoxy carbonyl.