Capped 1,2-propylene terephthalate-polyoxyethylene terephthalate polyesters useful as soil release agents
申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0241985A2
公开(公告)日:1987-10-21
Capped 1,2-propylene terephthalate-polyoxyethylene terephthalate polyesters useful as soil release agents are disclosed. Preferred polyesters have the formula:
wherein each R is a 1,4-phenylene moiety; the R2 are essentially 1,2-propylene moieties; the R3 are essentially the polyoxyethylene moiety -(CH2CH2O)1-CH2CH2-; each X is ethyl or preferably methyl; each n is from about 12 to about 45; q is from about 12 to about 90; the average value of u is from about 5 to about 20; the average value of v is from about 1 to about 10; the average value of u + v is from about 6 to about 30; the ratio u to v is from about 1 to about 6.
本发明公开了可用作土壤释放剂的 1,2-丙烯对苯二甲酸酯-聚氧乙烯对苯二甲酸酯封端聚酯。 优选的聚酯具有以下式子:其中每个 R 是 1,4-亚苯基分子;R2 基本上是 1,2-丙烯分子;R3 基本上是聚氧乙烯分子-(CH2CH2O)1-CH2CH2-;每个 X 是乙基或优选甲基;每个 n 是约 12 至约 45;q 是约 12 至约 90;u 的平均值是约 5 至约 20;v 的平均值是约 1 至约 10;u + v 的平均值是约 6 至约 30;u 与 v 的比率是约 1 至约 6。