Title: Dispersants
Application Number: 97199120 Application Date: 1997.10.01
Publication Number: 1233974 Publication Date: 1999.11.03
Approval Pub. Date: 2003.04.30 Granted Pub. Date: 2003.04.30
International Classifi-cation: B01F17/00;C08G63/08;C09D11/00
Applicant(s) Name: Zeneca Ltd. Address:
Inventor(s) Name: D. Theftord;J. D. Schofield;P. J. Sunderland
Attorney & Agent: tan mengsheng
Abstract:
    A dispersant of general Formula (1) wherein T is hydrogen or a polymerisation terminating group; Z is an acidic or basic group or a moiety containing either an acidic or basic group; A and B are each, independently, oxyalkylene carbonyl groups derivable from delta -valerolactone, epsilon -caprolactone or alkyl substituted epsilon -caprolactone provided that both are not epsilon -caprolactone or delta -valerolactone; n and p are integers; and n p is from 2 to 100; including salts thereof. Specific examples of dispersants are the reaction product of lauric acid, epsilon -caprolactone, 7-methyl- epsilon -caprolactone with PEI, the reaction product of lauric acid, epsilon -caprolactone, delta -valerolactone with PEI and the phosphate of the reaction product of dodecanol, epsilon -caprolactone and delta -valerolactone. T-A(n)B(p)-Z(1).
Time: 14