申请人:Eastman Kodak Company
公开号:US05543555A1
公开(公告)日:1996-08-06
Surfactants useful as dispersing aids in the preparation of compositions comprising a hydrophilic colloid having hydrophobic particles dispersed therein have the structure ##STR1## wherein R is H or methyl provided that when each n=1, each R is methyl; M is a cation; and, n is an integer from 1 to 6. Such surfactants offer coating, photographic property and processing advantages when incorporated in photographic materials comprising a support bearing a plurality of hydrophilic colloid layers including at least one light-sensitive silver halide emulsion layer wherein at least one of the underlying hydrophilic colloid layers of the material contains hydrophobic particles dispersed therein with the aid of the surfactant.
具有下列结构的表面活性剂在制备包含水溶性胶体和分散有疏水粒子的组合物时,可用作分散剂:##STR1## 其中,当每个n=1时,每个R都是甲基;M是阳离子;n是1到6的整数。当这种表面活性剂被纳入含有多个水溶性胶体层的摄影材料中时,这些表面活性剂能够提供涂层、摄影性能和处理优势,其中至少一个底层的水溶性胶体层含有分散有疏水粒子的组分,这些疏水粒子是通过这些表面活性剂的帮助分散在其中的。