Pesticide preparations

1. A composition comprising:

a) at least one pesticide,

b) at least one copolymer prepared by copolymerizing

i) glycerol,

ii) at least one dicarboxylic acid, and

iii) at least one monocarboxylic acid,

c) at least one amphoteric surface-active substance, and

d) water, wherein the at least one pesticide of component a) is selected from the group consisting of N-phosphonomethyl-glycine (glyphosate) substance class.

2. A composition as claimed in claim 1 , wherein the at least one pesticide of component a) is selected from the group consisting of water-soluble salts of N-phosphonomethyl-glycine (glyphosate).

3. A composition as claimed in claim 1 , wherein the at least one copolymer of component b) is selected from the group consisting of copolymers prepared by copolymerizing

i) glycerol,

ii) at least one dicarboxylic acid, and

iii) at least one monocarboxylic acid of formula (I)

R 1 —COOH  (I),

where R 1 is (C 5 -C 29 )-alkyl; (C 7 -C 29 )-alkenyl; phenyl or naphthyl, and comprise 19.9% to 99% by weight of component i), 0.1% to 30% by weight of component ii), and 0.9% to 80% by weight of component iii).

4. A composition as claimed in claim 1 , wherein the at least one amphoteric surface-active substance of component c) is selected from the group consisting of formulae (II) to (V)

iv) alkylbetaine of the formula (II)

R 1 R 2 R 3 N + —CH 2 —COO −   (II)

where R 1 is a linear or branched alkyl group having 3 to 30 carbon atoms or a mixture thereof, R 2 and R 3 may be identical or different and are hydrogen, an alkyl group having 1 to 10 carbon atoms or a group of the formula (C 2 H 4 O) p H, and p is a number from 1 to 10,

v) alkyl(amidoalkyl)-betaine of the formula (III)

R 1 —CONH—(CH 2 ) n N + R 2 R 3 —CH 2 —COO −   (III)

where R 1 is a linear or branched alkyl group having 3 to 30 carbon atoms or a mixture thereof, R 2 and R 3 may be identical or different and are hydrogen, an alkyl group having 1 to 10 carbon atoms or a group of the formula (C 2 H 4 O) p H, and n and p are numbers from 1 to 10,

vi) amine oxide of the formula (IV)

R 1 NR 2 R 3+ —O −   (IV)

where R 1 is a linear or branched alkyl group having 3 to 30 carbon atoms or a mixture thereof, R 2 and R 3 may be identical or different and are hydrogen, an alkyl group having 1 to 10 carbon atoms or a group of the formula (C 2 H 4 O) p H, and p is a number from 1 to 10, and

vii) amine oxide of the formula (V)

R 1 —CONH—(CH 2 ) n NR 2 R 3+ —O −   (V)

where R 1 is a linear or branched alkyl group having 3 to 30 carbon atoms or a mixture thereof, R 2 and R 3 may be identical or different and are hydrogen, an alkyl group having 1 to 10 carbon atoms or a group of the formula (C 2 H 4 O) p H, and n and p are numbers from 1 to 10.

5. A composition as claimed in claim 1 , wherein the at least one pesticide of component a) is selected from the group consisting of glyphosate, and water-soluble salts of glyphosate, and the amount of glyphosate in the composition is from 80 to 600 g/l, based on the glyphosate acid equivalent.

6. A composition as claimed in claim 1 , wherein the sum of the amounts of components b) and c) is from 20 to 250 g/l.

7. A composition as claimed in claim 1 , wherein the weight ratio of the at least one compound of component b) to the at least one compound of component c) is from 95:5 to 5:95.

8. A composition as claimed in claim 1 , which is present in the form of a concentrate formulation which is diluted prior to use, and comprises 5% to 80% by weight, of pesticide of component a) and a total amount of compounds selected from components b) and c) of 1% to 50% by weight.

9. A composition as claimed in claim 1 , which is present in the form of a spray liquor, and comprises 0.001% to 10% by weight, of pesticide of component a) and a total amount of compounds selected from components b) and c) of 0.001% to 3% by weight.

10. A composition as claimed in claim 1 , which comprises at least one agrochemical salt selected from the group consisting of ammonium salts and potassium salts.

11. A process for the checking and/or control of weeds, fungal diseases or insect infestation comprising the step of contacting the weeds, fungal diseases or insect infestation with a composition as claimed in claim 1 .

12. A process as claimed in claim 11 , wherein the process includes a step comprising a tank-mix preparation.