| 摘要 |
BLOCK POLYESTERS AND LIKE COMPOUNDS USEFUL AS SOIL RELEASE AGENTS IN DETERGENT COMPOSITIONS Block polyesters useful as soil release agents in detergent compositions are disclosed. Preferred polyesters have the formula: wherein each R1 is a 1,4-phenylene moiety; the R2 consist essentially of ethylene moieties, 1,2-propylene moieties or a mixture thereof; each X is ethyl or preferably methyl; each n is from about 12 to about 43; u is from about 3 to about 10. |
