Latex modified portland cement and use thereof in...

C - Chemistry – Metallurgy – 08 – F

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23/431, 402/538,

C08F 2/16 (2006.01) B01J 3/04 (2006.01) C04B 24/26 (2006.01) C08F 14/04 (2006.01) C08L 33/04 (2006.01)

Patent

CA 1091395

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

258050

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