POLY(ORGANOTIN) MERCAPTIDE POLYMERS AND RESINS STABILIZED THEREWITH

摘要

Poly(organotin) mercaptide condensation polymers useful as stabilizer for vinyl resins are prepared by reacting an organotin compound with a polyfunctional polymercapto ester derived from a polyhydric alcohol containing more than two hydroxyl groups, which is esterified with a mercapto acid so as to leave one hydroxyl group unesterified, and the latter is esterified with an aliphatic or aromatic monocarboxylic acid.