Suspension medium
AssigneeHercules Powder Company Limited
InventorsWilliam P. O'Callaghan, Gianfranco Mecatti
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Abstract
Stable suspensions of solid particles are formed by dispersing the particles in a pseudoplastic aqueous medium containing in solution xanthan gum and at least one non-ionic water-soluble polymer, exemplified by guar gum, in proportions providing an unexpectedy high ratio of yield point to plastic viscosity. The medium is especially useful in the planting of seeds which may be pre-germinated.
Claims17
A method of forming a stable suspension of seeds, which comprises dispersing the seeds in a pseudoplastic aqueous medium containing in solution xanthan gum and at least one non-ionic water-soluble polymer.
A suspension of dispersed seeds in a pseudoplastic aqueous medium containing in solution xanthan gum and at least one non-ionic water-soluble polymer.
A method of sowing seeds which comprises dispersing seeds in a biodegradable pseudoplastic aqueous medium containing in solution xanthan gum at least one non-ionic, water-soluble polymer to form a stable suspension of the seeds, and distributing said medium on the land in such a manner as to plant the seeds in or on the soil.
Dependencies are inferred from the claim text.