Suds suppressor compositions and their use in detergent compositions

A process for preparing a suds suppressor composition, said process comprising the steps of

• (a) forming a high shear mix of polydimethylsiloxane and hydrophobic silica suds suppressing agents in a weight ratio of polydimethylsiloxane to hydrophobic silica in the range from 75:25 to about 99:1, the polydimethylsiloxane having a viscosity at 25.degree. C. in the range from about 20 to about 12,500 cs,
• (b) forming a dispersion of (i) the product of step (a) and (ii) polydimethylsiloxane suds suppressing agent having a viscosity at 25.degree. C. of at least about 25,000 cs in (iii) a water-soluble or water-dispersible organic carrier, the combination of (i) and (ii) having a viscosity at 25.degree. C. of at least about 18,000 cs, said water-soluble or water-dispersible organic carrier comprising from about 1% to 100% by weight of a first organic carrier component having a melting point in the range from about 38.degree. C. to about 90.degree. C., and from 0% to about 99% by weight of a second organic carrier component selected from the group consisting of ethoxylated nonionic surfactants having a hydrophilic-lipophilic balance (HLB) in the range from about 9.5 to about 13.5 and a melting point in the range from about 5.degree. C. to about 36.degree. C.