The composition of polìmero, stabilizer composition and process for the preparation of a composition for the stabilization of a polìmero containing halogen.

摘要

"The composition of polu00ecmero, stabilizer composition and process for the preparation of a composition for the stabilization of a polu00ecmero containing halogen.Compositions of polymer of vinyl chloride, flexible, semi-rigid,And rigid comprising a thermal stabilizer containing a latent mercaptan are substantially free of offensive odor typically associated with mercaptans and are protected during the processamenTo the degradation products of latent mercaptan (that is, blocked) which include a free mercaptan.The free mercaptan thus released intensifies the activity of metal based heat stabilizers.Such that caboxilatos zinc and mercaptu00eddeos and organoestanho carboxylates in the composition of the polymer.Other products of degradation are taken as including carbocu00e1tions blocking portion, which are stabilized by a molecular structure.In which the deficiency of electron is shared by several groups.The latent mercaptan is selected from the group consisting of 2 - S - (tetaridropiranil) - tioalcanol, a carboxylic acid ester thereof, an acid, 2 - S - (tetraidropiranil) - mercaptoacetic,And an ester thereof.