PHOSPHATE ESTERS OF POLYOXYALKYLENE ETHER BLOCK COPOLYMERS AND THEIR DISPERSANTS

摘要

PCT No. PCT/GB97/00930 Sec. 371 Date Nov. 4, 1998 Sec. 102(e) Date Nov. 4, 1998 PCT Filed Apr. 2, 1997 PCT Pub. No. WO97/42252 PCT Pub. Date Nov. 13, 1997A composition comprising a particulate solid and a dispersant which is a phosphate ester of a compound of formula 1: wherein Y is methoxy or H-(EO)q, m and q are each independently from 5 to 50 and n is from 5 to 70. When Y is a methoxy, n is preferably 20 and m is preferably 10. When Y is H-(EO)q, m and q are preferably 13 and n is preferably 30.