| 摘要 |
PCT No. PCT/GB94/01814 Sec. 371 Date Jul. 16, 1996 Sec. 102(e) Date Jul. 16, 1996 PCT Filed Aug. 19, 1994 PCT Pub. No. WO95/06070 PCT Pub. Date Mar. 2, 1995A process of oil-in-water emulsion polymerisation carried out in the presence of emulsifiers that are polyoxyethylene half ester of vic-dicarboxylic acids which give latices that are stable especially to coagulation by electrolytes, shear and/or freezing is disclosed. Particularly suitable emulsifiers are of the formulae (I) or (II): Y.OOC.(HR)C.C(HR1).COO.(AO)n.R2(I) Y.OOC.(HR)C.C(HR1).COO.(AO)n.CO.(HR1)C.C(HR)COO.Y(II) where: R, R1, AO, n, R2 and Y are as defined, in particular where the emulsifiers are polyoxyethylene half esters of alkenyl succinic acids. |
