申请人:E. I. du Pont de Nemours and Company
公开号:US07385077B1
公开(公告)日:2008-06-10
Surfactants of formula (I)
wherein
each R is independently hydrogen or a C1 to C4 alkyl group;
A is independently hydrogen or —C(O)—O—B;
Ro is a linear, branched or cyclic aliphatic group, or combination thereof, having from about 2 to about 100 carbon atoms, interrupted or substituted by 1 to about 50 hydrophilic groups, said hydrophilic groups selected from the group consisting of hydroxyl, amino, ether and mixtures thereof; wherein specific ratios of and bonding of hydrophilic groups to carbon atoms is required;
each B is independently of specific formulae containing perfluoroalkyl and —S(CH2)t—, and m, d, n, and t are 0 or integers with specific limitations.
化学公式(I)中的表面活性剂,其中每个R独立地是氢原子或一个C1到C4烷基基团;A独立地是氢原子或—C(O)—O—B;Ro是一个线性、支链或环状脂肪族基团,或其组合,含有大约2到大约100个碳原子,被1到大约50个亲水基团中断或取代,所述亲水基团选自羟基、氨基、醚基及其混合物;其中需要特定比例和亲水基团与碳原子的结合;每个B独立地是包含全氟烷基和—S(CH2)t—的特定配方,m、d、n和t为0或具有特定限制的整数。