Rapid-setting dry packing mix for eliminating bore hole troubles

Details Rapid-setting dry packing mix for eliminating bore hole troubles Rapid-setting dry packing mix for eliminating bore hole troubles

1979-07-05

1980-12-30

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106109, C04B 735

Patent

active

042421411

ABSTRACT:
A rapid-setting dry packing mix for eliminating bore hole troubles contains: 40 to 50 percent by weight of cement powder, 50 to 60 percent by weight of gypsum or alabaster, 0.01 to 3.0 percent by weight of barium hexaferrite powder in particles commensurate in size with those of the binder.
A method for manufacturing the rapid-setting dry packing mix for eliminating bore hole troubles consists in a mechanical mixing in an alternating electromagnetic field powders of cement, gypsum or alabaster and barium hexaferrite taken in required proportions, the above barium hexaferrite powder being introduced through abrasion of working tools which are magnetized pellets prepared on the basis of barium hexaferrite.

REFERENCES:
patent: 3582376 (1971-06-01), Ames
patent: 3852081 (1974-12-01), Lehman
patent: 3861929 (1975-01-01), Deets
patent: 3950178 (1976-04-01), Jaklin
patent: 3997353 (1976-12-01), Chervenka et al.

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