LATEX MODIFIED PORTLAND CEMENT AND USE THEREOF IN POLYMERIZATION REACTORS

摘要

ABSTRACT OF THE DISCLOSUREIn the aqueous polymerization of vinyl chloride andvinylidene chloride polymers and copolymers, the polymer buildup normally experienced in many areas of commercial polymeri-zation reactors is reduced, or when such polymer build up doesoccur it is more readily removed, when these trouble areas inpolymerization reactors are coated with a latex-modified port-land cement composition, the polymer in said latex containingcarboxyl groups and the polymer having a Tg °C. of less thanabout 40°C., preferably less than about 25°C.