Patent Number: 6,200,498

Title: Process for producing paraffin-containing foam regulators

Abstract: A process for producing pourable foam regulator granules containing a defoamer combination of a paraffin wax and a bisamide derived from diamines and carboxylic acids and an inorganic, water-soluble or water-dispersible carrier salt by pelletizing in a granulation mixer with intensive mixing 50 to 100 parts by weight of the inorganic carrier salt optionally with up to 5 parts by weight of an anionic or nonionic cellulose ether, adding 1 to 10 parts by weight of an aqueous alkali metal silicate or polymeric polycarboxylate solution and then adding 10 parts by weight of the defoamer combination heated to a temperature of C. to C.

Inventors: Artiga Gonzalez; Rene-Andres (Duesseldorf, DE), Liphard; Maria (Essen, DE), Kraus; Ingrid (Duesseldorf, DE), Hammelstein; Stefan (Duesseldorf, DE)

Assignee: Henkel Kommanditgesellschaft auf Aktien

International Classification: B01D 19/02 (20060101); B01D 19/04 (20060101); C11D 1/52 (20060101); C11D 3/00 (20060101); C11D 3/18 (20060101); C11D 1/38 (20060101); B01D 017/00 ()

Expiration Date: 03/13/2018