Method of preparing gypsum articles

Details Method of preparing gypsum articles Method of preparing gypsum articles

1982-09-08

1984-04-17

Derrington, James H.

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

264 25, C04B 1100

Patent

active

044432615

ABSTRACT:
Plaster products can be prepared from calcium sulfate dihydrate by adding to a water slurry of calcium sulfate dihydrate a potassium salt, especially potassium hydrogen-carbonate or potassium tetraborate but, in the first place, potassium sulfate, including a carrier, after which the water slurry is moulded and further worked in known manner to the desired plaster product, especially plaster board or moulds for the production of metal articles or ceramic articles.

REFERENCES:
patent: 1300269 (1919-04-01), Hoskins
patent: 1442406 (1923-01-01), Hennicke
patent: 3841886 (1974-10-01), Burr
patent: 4146402 (1979-03-01), Kira et al.

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