POLYVINYL CHLORIDE COMPOSITIONS OF HEAT AND LIGHT STABILITY

摘要

1311791 Stabilizing vinyl chloride polymers PURE CHEMICALS Ltd 31 Dec 1970 [30 Jan 1970] 4479/70 Heading C3P Vinyl chloride polymers are stabilized with dialkyl tin salts of mono-esters of maleic acid and a substituted benzotriazole in the absence of organotin mercaptides. A sterically hindered phenolic antioxidant may also be added and also conventional ingredients such as epoxy oils, processing aids and lubricants, e.g. glyceryl monoricinoleate. Specified dialkyl tin salts are dibutyl tin bis methyl (bis isooctyl, bis benzyl, biscyclohexyl, bismethoxyethylandbisethylene glycol) maleates.