| 摘要 |
a. Process for the manufacture of crosslinkable halogenated hydrocarbon polymerisates, in particular of polyvinyl chloride and of its mixed polymerisates. …<??>b. Process characterised in that a silane containing a mercapto group, of general formula: …<IMAGE>… is grafted onto a halogenated hydrocarbon polymerisate at a temperature of 60 to 220 DEG C, for 1 to 60 minutes, in a proportion of 0.5 to 10 parts by weight, calculated per 100 parts by weight of the polymerisate, in the presence of compounds containing lead or elements of the fourth group of the Periodic System, advantageously mono- to tribasic salts of organic or inorganic acids, advantageously tribasic lead sulphates. |
