Plant-protective agents in the form of suspensions
OwnerGerd Meyer, Ralf Zerrer +1inventors
InventorsGerd Meyer, Ralf Zerrer, Roman Morschhaeuser
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Abstract
Aqueous plant protection formulations in the form of suspensions The invention relates to aqueous plant protection formulations in the form of suspensions comprising polymers based on acrylamidopropyl-methylenesulfonic acid (AMPS) and “macromonomers”. The suspensions show high compatibility and suspensibility of the components (pesticides, adjuvants, dispersing agents, electrolytes, and the like). The invention is particularly suitable for suspension concentrates. The suspension concentrates show high stability on storage.
Claims54
An aqueous plant protection formulation in the form of a suspension comprising at least one polymer prepared by radical copolymerization of
- A) acrylamidopropylmethylenesulfonic acid (AMPS) and/or its salts;
- B) one or more macromonomers according to formula (1)
- R1—Y—(R2—O)x(R4—O)z—R3 (1)
- wherein
- R1 is a vinyl, allyl, acryloyl, methacryloyl, senecioyl or crotonyl residue;
- R2 and R4 are, independently of one another, (C2-C4)-alkylene;
- x and z are, independently of one another, a whole number between 0 and 500, with x+z greater than or equal to 1;
- Y is O, S, PH or NH;
- and
- R3 is hydrogen or a saturated or unsaturated, linear or branched, aliphatic, cycloaliphatic or aromatic (C1-C100)-hydrocarbon residue, and
- C) optionally one or more other at least mono- or polyolefinically unsaturated oxygen-, nitrogen-, sulfur-, phosphorus-, chlorine- and/or fluorine containing comonomers.
A method for increasing the suspensibility of a plant protection formulation in the form of a suspension comprising the step of adding to the plant formulation at least one polymer prepared by radical copolymerization of
- A) acrylamidopropylmethylenesulfonic acid (AMPS) and/or its salts;
- B) one or more macromonomers according to formula (1)
- R1—Y—(R2—O)x(R4—O)z—R3 (1)
- wherein
- R1 is a vinyl, allyl, acryloyl, methacryloyl, senecioyl or crotonyl residue;
- R2 and R4 are, independently of one another, (C2-C4)-alkylene;
- x and z are, independently of one another, a whole number between 0 and 500, with x+z greater than or equal to 1;
- Y is O, S, PH or NH, and
- R3 is hydrogen or a saturated or unsaturated, linear or branched, aliphatic, cycloaliphatic or aromatic (C1-C100)-hydrocarbon residue, and
- C) optionally one or more other at least mono- or polyolefinically unsaturated oxygen-, nitrogen-, sulfur-, phosphorus-, chlorine- and/or fluorine containing comonomers.
Dependencies are inferred from the claim text.