Sustained release biocidal powders

Details Sustained release biocidal powders Sustained release biocidal powders

1997-05-19

1999-03-30

O'Sullivan, Peter

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

424408, 424409, 424420, 424421, 424497, 424498, 424501, 424502, 25218721, 25218723, 25218821, 514772, 5147723, A01N 2512, A01N 2514, A01N 2572, A01N 2576

Patent

active

058885285

ABSTRACT:
A powder for sustained release of a gas including a hydrophilic core, a hydrophobic layer on an outer surface of the hydrophilic core, and particles in contact with the hydrophobic layer. The hydrophobic layer contains an acid releasing agent. The particles contain an anhydrous material capable of binding with water. The core, the particles, and the hydrophobic layer are substantially free of water, and the core is capable of generating and releasing a gas after hydrolysis of the acid releasing agent.

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