Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Biocides; animal or insect repellents or attractants
Patent
1992-08-11
1994-03-29
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Biocides; animal or insect repellents or attractants
424630, 424633, 424 7833, A01N 5920, A61K 3178
Patent
active
052982530
ABSTRACT:
There is disclosed a granular copper hydroxide dry flowable bactericide/fungicide having improved biological activity and a method for making and using same. A bactericide/fungicide is made by forming a homogeneous aqueous slurry containing between approximately 5% and 20% by weight (based on the total weight of all dry ingredients) of a first dispersant selected from the group consisting of partially neutralized polyacrylic acid having a pH of between approximately 5 and 10 and an average molecular weight of between approximately 1,000 and 10,000 and lignin sulfonate, between approximately 0% and 5% by weight (based on the total weight of all dry ingredients) of a second dispersant for bentonite clay, between approximately 40% and 80% by weight (based on the total weight of all dry ingredients) phosphate stabilized cupric hydroxide and between approximately 6% and 30% by weight (based on the total weight of all dry ingredients) bentonite clay; and spray drying the slurry to thereby form a dry free flowing granular bactericide/fungicide product. The slurry can also include antifoam and wetting agents. Other partially neutralized polycarboxylic acid polymers useful as the first dispersant are also disclosed.
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Crawford Mark A.
LeFiles James H.
Taylor Evelyn J.
Griffin Corporation
Kulkosky Peter F.
Page Thurman K.
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