David W Suwala

39518531, Apr 20, 1976

Nov 4, 1974

5/520483

David W. Suwala - Flanders NJ

Diamond Shamrock Corporation - Cleveland OH

B01D 1904

252321

Compositions for controlling foam in aqueous systems are prepared by dispersing in an organic liquid the particles of an amide with the reaction product of an alkyl or aryl halosilane and a base. Polymers, fatty acids and glycerides may also be present as organic components in the compositions. These compositions do not lose defoaming ability or increase in viscosity after they are heated at elevated temperatures or stored for long periods of time.

48122556, Mar 14, 1989

Mar 4, 1987

7/021891

David W. Suwala - Flanders NJ

GAF Corporation - Wayne NJ

C11D 328

252142

Water soluble paint remover compositions for the removal of uncured paint are disclosed which avoid the use of toxic organic solvent, in particular, methylene chloride. The inventive compositions comprise an organic carboxylic acid, N-methyl-2-pyrrolidone, and an alkylene glycol ether. Methods for use of the compositions are also disclosed.

50358294, Jul 30, 1991

Dec 20, 1988

7/286968

David W. Suwala - Flanders NJ

GAF Chemicals Corporation - Wayne NJ

C11D 708
C11D 750
C11D 726
C11D 326

252170

Water soluble paint remover compositions for the removal of uncured paint are disclosed which avoid the use of toxic organic solvent, in particular, methylene chloride. The inventive compositions comprise an organic carboxylic acid, N-methyl-2-pyrrolidone, and an alkylene glycol ether. Methods for use of the compositions are also disclosed.