| abstract |
1282814 Stabilizing polymers WESTON CHEMICAL CO Inc 27 April 1970 [24 June 1969] 20060/70 Headings C3P and C3Q [Also in Divisions C2 and C5] Compounds of the Formula I where n is 0 or an integer, R is a divalent aromatic, aliphatic or cycloaliphatic hydrocarbon, alkylidene bis-(carbocyclic aryl), aliphatic oxa hydrocarbon, aliphatic thiohydrocarbon, menthylene, terpinylene, phellandrylene, sylvestrylene, alkyl-substituted arylene or cycloalkylene, alkylidene bis.(cycloalkylene), cycloalkyl bis-(methylene) or arylene bis- (methylene), R 1 is alkyl, haloalkyl, carbocyclic aryl, halocarbocyclic aryl, alkenyl, carbocyclic aralkyl, alkaryl, haloalkenyl, cycloalkyl, methyl cyclohexyl, phellandryl, terpinyl or sylvestryl, X is sulphur and Y is absent, may be used as antioxidants for natural rubber or for a vinyl halide polymer or a mono- or polyolefin polymer. Specified polymers include polyethylene, polypropylene, EPDM rubber and polyvinyl chloride. |