Polyhydroxy polymer delivery systems

Details Polyhydroxy polymer delivery systems Polyhydroxy polymer delivery systems

1985-05-30

1987-04-14

Hollrah, Glennon H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71DIG1, 71 88, 71117, 71120, 71118, 71 93, 424410, 424411, 514 86, 514 89, 514132, 514141, 514144, A01N 2512

Patent

active

046575820

ABSTRACT:
A biologically active agent-containing composition is prepared by reacting an aqueous emulsion or dispersion of a suitable biologically active agent and an optional filler in an aqueous solution or gel of a polyhydroxy polymer and an inorganic salt, with a boric acid or boric acid derivative until an insolubilized matrix phase is formed having entrapped therein uniformly dispersed, discontinuous domains of said agent and an optional aqueous phase that can be separated from the matrix phase by decanting, filtration, or the like; the product is then dried and ground to the desired particle size. The composition is applied to the soil or plants where the biologically active agent is slow released for controlling pests.

REFERENCES:
patent: 2800458 (1957-07-01), Green
patent: 3244586 (1966-04-01), Rigterink
patent: 3565818 (1971-02-01), Bayless et al.
patent: 3582495 (1971-06-01), Emrick
patent: 4439488 (1984-03-01), Trimnell et al.
Farm Chemicals Handbook 1976, p. D200 (Meister Publishing, 1976).
Shasha et al., "Starch-borate Complexes for EPTC Encapsulation," Chem. Abs. 100:134169d, (1984).

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