Extended BaCO.sub.3 for brick scum prevention

Details Extended BaCO.sub.3 for brick scum prevention Extended BaCO.sub.3 for brick scum prevention

1979-06-04

1980-10-07

McCarthy, Helen M.

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106 71, 10608B, 423431, C04B 3144, C09C 102

Patent

active

042266351

ABSTRACT:
This invention relates to an improved barium carbonate prepared by precipitating barium carbonate on an inert core to effectively increase its sulfate scavenging utility by providing enhanced reactivity and dispersibility. This invention is especially useful in the prevention of efflorescence and scumming of bricks or ceramic tile caused by the migration of soluble sulfates during their manufacture.

REFERENCES:
patent: 1851844 (1932-03-01), Jeavons
patent: 3421843 (1969-01-01), Conaway et al.
patent: 3738938 (1973-06-01), Barrett
patent: 3802901 (1974-04-01), Robertson et al.
patent: 4102814 (1978-07-01), Gustin

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