Organic gypsum set accelerators

Details Organic gypsum set accelerators Organic gypsum set accelerators

1979-06-28

1981-11-03

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Proteinaceous material containing

106315, C04B 1114

Patent

active

042983940

ABSTRACT:
A gypsum set accelerator for use in the production of gypsum wallboard comprises a tube or ball milled mixture of gypsum and up to 20 percent by weight of the gypsum of a synthetic water-soluble solid surfactant. A process for the manufacture of gypsum wallboard is also described comprising spreading between paper sheets an aqueous slurry of calcium sulphate hemihydrate defined above at a rate of between 0.5 and 15 kilograms per 100 square meters (1 and 30 pounds per 1000 square feet) of gypsum wallboard, and allowing the slurry to set. The accelerator has high potency and appears to provide wallboard of increased compressive strength.

REFERENCES:
patent: 2358701 (1944-09-01), Gardner
patent: 2410390 (1946-10-01), Paley
patent: 2820714 (1958-01-01), Schneiter et al.
patent: 3284227 (1966-11-01), Gerton
patent: 3331695 (1967-07-01), Angstadt
patent: 3369915 (1968-02-01), Lee
patent: 3393116 (1968-07-01), Larson
patent: 3577248 (1971-05-01), Doan et al.
patent: 3725090 (1973-04-01), Lyass et al.
patent: 3864138 (1975-02-01), Uchikawa et al.
patent: 3947285 (1976-03-01), Jones et al.
patent: 3957522 (1976-05-01), Matsuo et al.
patent: 4019920 (1977-04-01), Burkard et al.
patent: 4026723 (1977-05-01), Grof et al.
patent: 4059456 (1977-11-01), De Rooy et al.
patent: 4060425 (1977-11-01), Harada et al.
patent: 4102697 (1978-07-01), Fukuba et al.
patent: 4169747 (1979-10-01), De Rooy et al.
patent: 4184887 (1980-01-01), Lange et al.

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