Claims
- 1. An aqueous emulsion comprising 10 to 70 percent by weight of water, 5 to 60 percent by weight of a dispersed herbicide and, as a dispersant therefor, 0.5 to 20 percent by weight of at least one member selected from the group consisting of ##STR4## wherein p is a number between 20 and 30 and
- q is a number between 10 and 300;
- block copolymer of the formula ##STR5## wherein r and s are independently a number between 20 and 300 and
- t is a number between 10 and 300,
- where n and m in each of said formulas is 1 or 2 and the sum of n and m is 3; and
- alkali metal, alkaline earth metal, ammonium, mono-, di-, and tri-alkyl ammonium, and mono-, di-, and tri-alkanolammonium salts of said block copolymers.
- 2. An aqueous emulsion as in claim 1 which additionally comprises at least one member selected from the group consisting of additional different dispersants, emulsifiers, thickeners, organic solvents, and diols and polyols.
- 3. An aqueous emulsion as in claim 2 which additionally comprises a diol or polyol which is a (C.sub.2 -C.sub.5) alkanediol, a (C.sub.5 -C.sub.5) alkanetriol, a polyethylene glycol, or an alkyl glycol.
- 4. An aqueous emulsion as in claim 3 wherein said diol or polyol is ethylene glycol, butane diol, or glycerol.
- 5. An aqueous emulsion as in claim 1 which additionally comprises 0 to 50 percent by weight of a diol or polyol, 0 to 10 percent by weight of an additional different dispersant, 0 to 15 percent by weight of an emulsifier, 0 to 10 percent by weight of a thickener, and 0 to 30 percent by weight of an organic solvent.
- 6. An aqueous emulsion comprising a herbicide, a dispersant which is a member selected from the group consisting
- of block copolymers of the formula ##STR6## wherein p is a number between 20 and 300 and
- q is a number between 10 and 300;
- block copolymers of the formula ##STR7## wherein r and s are independently a number between 20 and 300 and
- t is a number between 10 and 300,
- where n and m in each of said formulas is 1 or 2 and the sum of n and m is 3; and
- alkali metal, alkaline earth metal, ammonium, mono- and di-, and tri-alkyl ammonium, and mono-, di-, and tri-alkanolammonium salts of said block copolymers.
- 7. An aqueous emulsion as in claim 1 wherein said herbicide is methyl.alpha.-4-(2',4'-dichlorophenoxy)-phenoxypropionate.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3304677 |
Feb 1983 |
DEX |
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3346637 |
Dec 1983 |
DEX |
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Parent Case Info
This application is a continuation of application Ser. No. 883,859, filed July 10, 1986, which is a continuation of application Ser. No. 578,282, filed Feb. 8, 1984, now abandoned.
US Referenced Citations (5)
Foreign Referenced Citations (4)
Number |
Date |
Country |
1959478 |
Nov 1969 |
DEX |
368836 |
Sep 1980 |
DEX |
1286699 |
Aug 1972 |
GBX |
2082914A |
Sep 1981 |
GBX |
Non-Patent Literature Citations (3)
Entry |
Tamura et al., "Polyester Composition", CA 80 16263a, (1974). |
Sasse, K., "Phosphoric Acid Deriv.", Houben-Weyl, Methoden der Organ. Chemie, vol. 12, part 2, pp. 143, 156-157, (1964). |
Derwent Abstract, Week E39, Nov. 24, 1982. |
Continuations (2)
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Number |
Date |
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Parent |
883859 |
Jul 1986 |
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Parent |
578282 |
Feb 1984 |
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