Polymerization of vinyl chloride with a suspension agent in the clay and a suspension agent in a hydrophilic polymer:

摘要

The invention has for its object a process of polymerization of vinyl chloride in suspension, according to which it holds the monomer in suspension in the form of droplets and stop the coalescence of the droplets of the polymer by the addition of an expanded clay a network, then a clay of aluminosilicate type of magnesium, particularly the veegum, and a hydrophilic polymer which can be chosen from among the poly (vinyl alcohol), the ethers carboxyl - and hydroxy - alkyl of cellulose etl' polyacrylic acid, in particular a reticle, the latter being prefer. / p & & p & application is the polymerization of vinyl chloride with a reduced time of polymerization, a reduction in deposits of the polymer on the walls of the reactor and of its, 2002, and an object of the shape of the particles of polymer and / 00307 of their size.