Controlled release pesticides and method of preparation

Details Controlled release pesticides and method of preparation Controlled release pesticides and method of preparation

1979-07-20

1981-05-12

Cockeram, H. S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

71 93, 71117, 71DIG1, 424 19, 424 78, 424 81, 424 93, 424358, 521137, 525123, 525128, 525131, 528 75, 536 2, 536 31, 536 45, 536 55, C08G 1804, C08G 1864

Patent

active

042672805

ABSTRACT:
Pesticide polymers comprising a polymer with a macromolecular backbone and pendant groups having pesticidal groups chemically linked thereto are prepared by reacting a pesticide having a replaceable hydrogen with a multifunctional isocyanate to form a pesticide-isocyanate adduct and then reacting the adduct with the polymer substrate in a mutual solvent to form the pesticide polymers. The chemical linkages connecting the pesticide-adduct to the pendant groups are cleaved under environmental conditions of use to controllably release an effective amount of the active pesticide.

REFERENCES:
patent: 3269900 (1966-08-01), Rubin
patent: 3966902 (1976-06-01), Chromocek
patent: 4177038 (1979-12-01), Biebricher et al.
Scher (Editor), Controlled Release Pesticides, ACS Symposium Series 53, (1977), pp. 112-125.

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