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US 4,225,693 AGranted
Pesticide-polymer systems prepared from vinyl monomers
OwnerCharles L. McCormickinventor
Life of this patent
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Abstract
Controlled release pesticide-polymer systems are prepared by the polymerization of vinyl monomers containing pendant pesticides. The vinyl monomers are prepared by reacting an acrylic acid derivative with a pesticide or a pesticide derivative having an active hydrogen. The pesticide-polymer systems prepared from the pesticide vinyl monomers release the active pesticide material by hydrolysis or chemical depolymerization under conditions of use.
Claims6
A pesticide-polymer which provides for the controlled release of the pesticide under conditions of use represented by the following formula:
- ##STR11## in which A is selected from hydrogen, lower alkyl of 1 to 5 carbon atoms, halide, nitro and nitrile, n is 10 to 10 million and ##STR12## is selected from (a) a group containing an amide linkage in which X is selected from a single bond and ##STR13## and R is a group obtained by removing an active hydrogen from an amino group of an amino containing compound selected from:
- 4-amino-6-tert=butyl-3-(methylthio)-as triazine-5(4H)one, 2-(ethylamine)-4(isopropylamino)-6-(methylthio-s-triazine)
- 3-amine-5-triazole
- 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine
- 3-amino-2,5-dichlorobenzoic acid
- 2-chloro-4-(cyclopropylamino)-6-(isopropylamino)-s-triazine
- N.sup.4,N.sup.4 -diethyl-a,a,a-trifluoro-3,5-dinitrotoluene-2,4-diamine
- 2-methoxy-4-ethylamino-6-sec-butylamino-s-triazine
- 4-amino-3,5-6-trichloropicolinic acid
- 2,4-bis(isopropylamino)-6-methoxy-s-triazine
- 2,4-bis(isopropylamino)-6-(methylthio)-s-triazine
- 2-chloro-4,6-bis(isopropylamino)-s-triazine
- 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone
- 2-chloro-4,6-bis(ethylamino)-s-triazine
- 2-chloro-4-ethylamino-6-tert-butylamino-s-triazine
- 2-methylthio-4-ethylamino-6-tert-butylamino-s-triazine
- 2-amino-3-chloro-1,4-naphthoquinone
- 2,4-dichloro-6(2-chloroanil-o)-1,3,5 triazine
- 3-amino-2,5-dichlorobenzoic acid;
- (b) a group in which X is selected from a single bond, --NH--, --O--, --O--(CH.sub.2).sub.2 --NH-and --NH--(CH.sub.2).sub.2 --O-- and R is a group obtained by removing a hydroxyl group from a carboxyl group of an acid selected from:
- trichloroacetic acid
- 2,2-dichloropropionic acid
- (2,4-dichlorophenoxy)acetic acid
- 4-(2,4-dichlorophenoxy)butyric acid
- 2-(2,4-dichlorophenoxy)propionic acid
- (2,3,6-trichlorophenyl)acetic acid
- 2-methyl-4-chlorophenoxyacetic acid
- (2,4,5-trichlorophenoxy)acetic acid
- 2,3,6-trichlorobenzoic acid
- 2,3,5-triiodobenzoic acid
- 2,2,3-trichloropropionic acid
- 2-(3-chlorophenoxy)propionic acid
- 2-(4-chlorophenoxy)propionic acid
- 2,3,6-trichlorobenzoic acid and
- 3,5,6-trichloro-2-methoxybenzoic acid;
- and
- (c) a group in which X is a single bond and R is ##STR14##
34 more elements
Dependencies are inferred from the claim text.