USE OF WATER-SOLUBLE OR WATER-DISPERSIBLE, POLYETHER BLOCK CONTAINING GRAFT POLYMERS AS COATING AGENTS, MATRIX FORMERS AND/OR PACKAGING MATERIALS FOR AGROCHEMICALS

摘要

The invention relates to water-soluble or water-dispersible, film-forming graft polymers which are obtained by radical polymerization of (a) the vinyl esters of aliphatic C1-C24 carboxylic acids in the presence of (b) the polyethers having an average molecular weight (number average) of at least 300 of the general formula (I), wherein the variables independently have the following meanings: R<1> represents hydroxy, amino, C1-C24 alkoxy, R<9>-COO-, R<9>-NH-COO-, a polyalcohol group; R<2> to R<7> represent -(CH2)2-, -(CH2)3-, -(CH-2)4-, -CH2-CH(CH3)-, -CH2-CH(CH2-CH3)-, -CH2-CHOR<10>-CH2-; R<8> represents hydrogen, amino-C1-C6 alkyl, C1-C24 alkyl, R<9>-CO-, R<9>-NH-CO-; R<9> represents C1-C24 alkyl; R<10> represents hydrogen, C1-C24 alkyl, R<9>-CO-; A represents -CO-O-, -CO-B-CO-O, -CO-NH-B-NH-CO-O-; B represents -(CH2)t- or optionally a substituted arylene; n is 1 or, if R<1> is a polyalcohol group, n is 1 to 8; s is 0 to 500; t is 1 to 12; u is 1 to 5000; v is 0 to 5000; w is 0 to 5000; x is 1 to 5000; y is 0 to 5000; and z is 0 to 5000. The inventive polymers can be used as coating agents, matrix formers and/or packaging materials for agrochemicals.