Patent ID: 8551533

Claim:
An adjuvant composition comprising: (a) at least one water-soluble electrolyte; (b) at least one electrolyte-tolerant surfactant; (c) antifoam component which is at least one mixture selected from the group consisting of (1) at least one branched silicone resin (i) of the general formula M a T b D a Q d wherein M is SiO 1/2 (R 1 ) 3 , T is SiO 3/2 R 2 , D is SiO 2/2 (R 3 ) e , Q is SiO. 4/2 , R 1 , R 2 and R 3 each independently is a monovalent hydrocarbon radical of from 1 to 18 carbon atoms, a is >0.1, b is 0 to 1000, C is 0 to 1,000 and d is 1-1000, at least one silicone fluid (ii) which is a polydimethylsiloxane-containing polymer, at least one particulate metal oxide (iii) which is at least one member selected from the group consisting of fumed, precipitated or plasmatic forms of titania, alumina, silica, alumina-silica, zirconia, zirconia-silica and pre-hydrophobized forms thereof and, optionally, at least one catalyst (iv) for catalyzing the condensation of siloxy groups, (2) the equilibration reaction product of mixture (1), and (3) mixture (1) in which at least a portion of particulate metal oxide (iii) is pre-hydrophobized; (d) optionally, at least one additional bioinert material; and, (e) water, wherein: (a) water-soluble electrolyte (a) is present at from 5 to 60 weight percent; (b) electrolyte-tolerant surfactant (b) is present at from 1 to 30 weight percent; and, (c) antifoam component (c) is present at from 0.0001 to 1.0 weight percent, and in antifoam component (c), branched silicone resin (i) is present at from 1 to 35 weight percent, silicone fluid (ii) is present at from 50 to 99 weight percent and particulate metal oxide (iii) is present at from 0.1 to 15 weight percent.