Patent ID: 6746623
Filing Date: 2004-06-08
Classification: B01D,B01F,C09D,C09K,C11D,D06M,D06P,D21H

Abstract:
In a method for controlling the foaming of a waterborne composition which is a protective or decorative coating; an ink composition; an adhesive composition; an overprint vanish; a radiation cured coating, ink, or adhesive composition; an agricultural compositon, or an acid gas scrubbing composition by the incorporation of a foam controlling agent in an amount effective for controlling foam, the improvemnt which comprises utilizing as the foam controlling agent an alkyl glycidyl ether-capped diamine compound of the formula: where L is a linker group comprising a linear, branched, or cyclic alkyl group having from 2 to about 6 carbon atoms or an alkyl ether group having from about 4 to about 8 carbon atoms; R is independently selected from hydrogen or â€”CH2CHOHCH2ORâ€²; and Râ€² is an on alkyl group having from about 4 to about 22 carbon atoms; the compound generating an inital foam height at least 30% less than a 0.1 wt% aqueous solution of dioctyl sodium sulfosuccinate (DOSS), when added at 0.1 wt% to the aquaeous DOSS solution.