Patent ID: 9120035
Filing Date: 2015-09-01
Classification: B01D,C08L,C11D

Abstract:
1. A defoamer formulation comprising (1) organopolysiloxane(s) comprising per molecule at least one structural unit of the formula and at least 2 units of the formula and units of the formula where b is 0, 1, or 2, c is 1 or 2, R are identical or different and are monovalent, SiC-bonded organic radicals having 1 to 30 C atoms, which are free from aliphatic multiple carbon-carbon bonds and which optionally contain one or more non-adjacent O atoms, R Y is a divalent organic radical having 1 to 30 C atoms, (2) fillers, (3) organopolysiloxane resin(s) comprising units of the formula in which R R e is 0, 1, 2, or 3 and f is 0, 1, 2, or 3, with the proviso that the sum e+f is less than or equal to 3 and in less than 50% of all units of the formula (IV) in the organopolysiloxane resin, the sum e+f is 2, optionally (4) polyorganosiloxanes of the formula where R are identical or different and have the definition specified for R above, R R m is an integer, n is an integer, with the proviso that the polyorganosiloxanes optionally include a portion of branching instances, (5) optionally one or more water-insoluble organic compounds, (6) optionally polyether-modified polysiloxanes, which are optionally linear or branched and which comprise at least one polyether group, and (7) optionally an alkaline or acidic catalyst or reaction product thereof with components (1) to (6).