D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
D21C 3/20 (2006.01) C08G 65/08 (2006.01) C08L 71/02 (2006.01) D21C 5/02 (2006.01) D21C 9/08 (2006.01) D21H 21/02 (2006.01) D21H 11/14 (2006.01)
Patent
CA 2404391
This invention concerns a method of dispersing hydrophobic particles in aqueous suspensions comprising adding to the suspension an effective amount of an ethylene oxide-propylene oxide block copolymer, wherein the copolymer has a molecular weight of from about 1,000 to about 50,000 and a HLB of from about 1 to about 4 and compositions comprising the ethylene oxide-propylene oxide block copolymer.
L'invention concerne un procédé permettant de disperser des particules hydrophobes dans des suspensions aqueuses. Ce procédé consiste à ajouter à la suspension une quantité efficace d'un copolymère bloc oxyde d'éthylène-oxyde de propylène, le copolymère ayant un poids moléculaire compris entre environ 1000 et environ 50.000 et un HLB compris entre environ 1 et environ 4. L'invention concerne également des compositions contenant ledit copolymère bloc oxyde d'éthylène-oxyde de propylène.
Agarwal Sameer B.
Carter Phillip W.
Coffey Martin J.
Agarwal Sameer B.
Carter Phillip W.
Coffey Martin J.
Mccarthy Tetrault Llp
Ondeo Nalco Company
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