Ultrasonic methods and apparatus for separating materials in a f
Use of alkoxylation products of epoxidized fats as antifoaming a
Use of C.sub.16 -C.sub.18 alkyl polyglycosides as defoamers in c
Use of water-insoluble poly(oxy-1,4-butanediyl)-containing...
Use of water-insoluble polyoxyalkylene-polysiloxane block...