Dispersants, process for their preparation and their use

Details Dispersants, process for their preparation and their use Dispersants, process for their preparation and their use

C - Chemistry, Metallurgy

07

C

402/252, 134/56,

C07C 43/23 (2006.01) B01F 17/00 (2006.01) B01F 17/42 (2006.01) C08G 65/04 (2006.01) C08G 65/26 (2006.01) C09B 67/46 (2006.01)

Patent

CA 1194501

Abstract of the disclosure: Compounds of the formula (1) Image in which Y denotes an aryloxy group, which is possibly substituted, R4 and R5 denote hydrogen or C1-C4-alkyl, m denotes 0 to 12 and Z denotes polyalkylene glycol radi- cals having about 8 to about 200 ethylene glycol units -(CH2-CH2O)- or up to about 200 ethyleneglycol units and alkylene glycol units of the formula Image in which R6 is methyl or ethyl and in which at least 8 ethylene glycol units are present. These compounds are prepared by initially reacting epoxide with a phenol or naphthol and subsequently oxalkylating. The reaction products are used as dispersants for the preparation of aqueous pigment dispersions.

408525

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