摘要 |
PCT No. PCT/EP94/02966 Sec. 371 Date Apr. 10, 1996 Sec. 102(e) Date Apr. 10, 1996 PCT Filed Sep. 6, 1994 PCT Pub. No. WO95/07742 PCT Pub. Date Mar. 23, 1995A method of using compositions as foam regulators for water-based systems with a tendency to foam is provided. The method employs a block copolymer containing ester groups corresponding to general formula (I): A-(CH2CH2O)n-B(I)in which n is an integer of 4 to 300, A is an optionally polymeric hydroxycarboxylic acid function and B is hydrogen, an alkyl or alkenyl radical containing 1 to 22 carbon atoms, a phenyl or benzyl radical or has the same meaning as A. Also provided is a granular free-flowing foam regulating formulation which contains 0.5% by weight to 30% by weight of the block copolymer containing ester groups adsorbed onto from 70% by weight to 99.5% by weight of a granular, substantially inorganic phosphate-free support material. |
申请人 |
HENKEL KGAA, 40589 DUESSELDORF, DE |
发明人 |
MOELLER, THOMAS, DR., 40593 DUESSELDORF, DE;EICKEN, ULRICH, DR., 41352 KORSCHENBROICH, DE;FISCHER, HERBERT, DR., 40229 DUESSELDORF, DE;WOLLENWEBER, HORST-W., DR., 40597 DUESSELDORF, DE;GRESS, WOLFGANG, 42111 WUPPERTAL, DE;HAUT, CHRISTIAN DE, BOISSISE LE ROI, FR;MAHLER, ULRIKE, DR., SUHR, CH;GORZINSKI, MANFRED, 40227 DUESSELDORF, DE;SLADEK, HANS-JUERGEN, 47800 KREFELD, DE |