Claims
- 1. A pesticide-polymer having a macromolecular backbone with pendant pesticidal groups chemically linked thereto by linkages which are broken under environmental conditions of use to controllably release an effective amount of active pesticide, which pesticide-polymer is prepared by reacting a polymer having pendant hydroxy groups, said polymer being selected from polyvinyl alcohol and polyvinylalcohol copolymers, with a pesticide derivative having an --NCO group, said pesticide derivative having been prepared from a pesticide having an --NH.sub.2 group.
- 2. A pesticide-polymer of claim 1 in which the polymer is polyvinyl alcohol.
- 3. A pesticide-polymer of claim 2 in which the pesticide derivative is 4-isocyanato-6-tert-butyl-3-(methylthio)-as-triazine-5(4H) one.
- 4. A pesticide-polymer of claim 2 in which the polymer is polyvinyl alcohol and the pesticide derivative is 4-isocyanato-6-tert-butyl-3-(methylthio)-as-triazine-5(4H) one.
- 5. A pesticide-polymer of claim 4 in which the pesticide derivative is 3-isocyanato-2,5-dichlorobenzoic acid.
RELATED APPLICATION
This is a continuation-in-part application of my earlier applications, both abandoned, Ser. No. 766,522 filed Feb. 7, 1977, and titled "Controlled Release Pesticides and Method of Preparation" and Ser. No. 820,956 filed Aug. 1, 1977 and titled "Controlled Release Pesticides."
US Referenced Citations (6)
Foreign Referenced Citations (4)
Number |
Date |
Country |
85468 |
Oct 1971 |
DDX |
47-19200 |
Jun 1972 |
JPX |
49-8263 |
Feb 1974 |
JPX |
1242151 |
Aug 1971 |
GBX |
Non-Patent Literature Citations (2)
Entry |
CA 78, 125374s (1973). |
J. Agr. Food Chem., 24, pp. 666-668 (1976). |
Related Publications (1)
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Number |
Date |
Country |
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820956 |
Aug 1977 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
766522 |
Feb 1977 |
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