Patent ID: 6790885
Filing Date: 2004-09-14
Classification: C07D,C08K,C08L

Abstract:
A flexible PVC composition exhibiting high thermal and oxidative stability comprising a flexible PVC and a stabililzer wherein the stabilizer is a compound selected from the group consisting of oligomieric aminouracyls, polymeric aminouracyls and mixtures thereof and having a structure of:(a) repeating units of general formula (I): wherein:R is selected from the group consisting of H; a C1-C18 linear or branched alkyl; a C5-C8 cycloalkyl; an aryl; an aryl substituted with â€”OH or C1-C8 alkoxy; an arylalkyl; an alkylaryl; and mixtures thereof; R1 is selected from the group consisting of H; a â€”(C&boxH;O)â€”C1-C12 linear or branched alkyl; a â€”(C&boxH;O)â€”Oâ€”C1-C12 linear or branched alkyl; a â€”(C&boxH;O) phenyl, wherein the phenyl is unsubstituted or substituted with â€”OH; a C1-C8 linear or branched alkyl; a C1-C8 alkoxy; and mixtures thereof; and Z is O or S; (b) linking groups between the repetitive groups of formula (I) which are the same or different and are selected from the group consisting of: â€”(CR2R3)nâ€”, wherein n is an integer having a value of from 2 to 12 and R2 and R3 can be the same or different and each independently of the other is selected from the group consisting of H, a C1-C12 linear, branched or cyclic alkyl, and mixtures thereof; 3-methylene-3,5,5-trimethylcyclohexan-1-yl; methylenebis(4-cyclohexyl); methylenebis(3-cyclohexyl); 1,4-phenylene; 1-methyl-2,4-phenylene; and 4,4â€²-diphenylenemethane; and mixtures thereof; (c) terminal groups selected from the group consisting of: H; a C1-C18 linear or branched alkyl; a C5-C8 cycloalkyl; a C3-C18 alkenyl; an aryl; an aryl substituted with â€”OH or C1-C8 alkoxy; an arylalkyl; an alkylaryl; a C1-C18 hydroxyalkyl; a C2-C18 alkoxy alkyl; a C6-C10 cycloalkoxyalkyl; a C7-C14 alkoxyaryl; a C7-C14 aryloxyalkyl; a C2-C8 alkylthioalkyl; a C6-C10 cycloalkylthioalkyl; a C7-C14 alkylthioaryl; a C7-C14 arylthioalkyl; a C1-C18 alkylamine, disubstituted with a C1-C18 linear or branched alkyl; and mixtures thereof.