Water-repellent powder and manufacture of the same

Details Water-repellent powder and manufacture of the same Water-repellent powder and manufacture of the same

1995-12-19

1998-08-04

Nutter, Nathan M.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Particulate form

523210, 524450, 524791, 428403, 428404, 428405, 428407, C09C 312, C09C 102, C01D 1300

Patent

active

057889902

ABSTRACT:
There is disclosed a water-repellent powder which is prepared by (A) coating the surface of a deliquescent powder with a curable silicone-based formation agent; and (B) curing said formation agent to provide a silicone-based cured film on said powder. Preferably, the deliquescent powder is selected from the group consisting of ammonium acetate, potassium acetate and sodium acetate.

REFERENCES:
patent: 4513053 (1985-04-01), Chen et al.
patent: 5162395 (1992-11-01), Yamazaki et al.
patent: 5192615 (1993-03-01), McDougall et al.
patent: 5204183 (1993-04-01), McDougall et al.
patent: 5362517 (1994-11-01), Flesher et al.

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