Plant protecting and regulating compositions – Plant growth regulating compositions – Organic active compound containing
Patent
1991-04-12
1993-10-12
Lovering, Richard D.
Plant protecting and regulating compositions
Plant growth regulating compositions
Organic active compound containing
71DIG1, 264 46, 424413, 424461, 424488, 42721336, 4284022, 42840224, 504321, 512 4, A01N 3710, A01N 3738, B01J 1302
Patent
active
052525422
ABSTRACT:
Controlled release compositions are made by including chemical impregnants (such as animal repellants, pesticides, herbicides, fungicides, plant growth stimulants, perfumes, fertilizers, and drugs) in biodegradable, microporous structures. Each microporous structure collapses upon drying but swells upon rewetting to allow the impregnant entrapped in it to diffuse from the structure. Never-dried wood pulp is a particularly desirable microporous structure because it has large pores initially, a large surface area initially, and demonstrated swelling capability. Methods for making the novel controlled release compositions and methods of using the compositions are also disclosed.
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Lovering Richard D.
University of Washington
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