Encapsulated calcium hypochlorite granules

Details Encapsulated calcium hypochlorite granules Encapsulated calcium hypochlorite granules

1973-06-27

1976-04-27

Padgett, Benjamin R.

Compositions

Oxidative bleachant, oxidant containing, or generative

Free halogen or oxy-halogen acid type

252 95, 252385, 423474, 427215, 06L 308, C01B 1106, C11D 3395

Patent

active

039533549

ABSTRACT:
Calcium hypochlorite compositions, suitable for bleaching and sanitation uses, are provided which have improved resistence to exothermic decomposition. These novel compositions are granules comprised of a core of calcium hypochlorite encapsulated with a coating comprised of a mixture of calcium hypochlorite dihydrate and a water soluble inorganic salt which is non-reactive with and stable in contact with calcium hypochlorite. Generally the coating comprises from about 5 to about 60 percent by weight of each granule and the proportion of water soluble salt ranges from about 0.1 to about 15 percent by weight of each granule. The granular product also resists dusting and caking and has improved retention of its available chlorine on storage.

REFERENCES:
patent: 2901435 (1959-08-01), Robson
patent: 2963440 (1960-12-01), Robson
patent: 3036013 (1962-05-01), Jaszka
patent: 3234141 (1960-02-01), Robson
patent: 3560396 (1971-02-01), Robson

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