Patent ID: 6858663
Filing Date: 2005-02-22
Classification: B01D,C08G

Abstract:
1. A method for defoaming aqueous media which comprises adding to the aqueous media an organopolysiloxane derivative of the general average formula (I) where the radicals R R  in which R R c is a number from 1 to 20, d is a number from 0 to 50, e is a number from 0 to 50 or (b)  in which R f is a number from 2 to 20 or c)  in which R g is a number from 2 to 6, h is a number from 0 to 20, i is a number from 1 to 50, j is a number form 0 to 10, k is a number from 0 to 10 or (d) correspond to the radical R with the proviso that in the average molecule at least one radical R 2 has the definition (a), a is a number from 1 to 500, b is a number from 0 to 10. and wherein the water solubility of the organopolysiloxane is such that it forms a clear solution in water in an amount not more than 20 g/l at 25° C.