申请人:AGFA-GEVAERT
naamloze vennootschap
公开号:EP0027284A1
公开(公告)日:1981-04-22
Latexes suited for homogeneously incorporating compounds with a photographically useful group into photographic silver halide emulsion materials. The latex incorporates a copolymer comprising recurring units of a monomer with photographically useful group, and recurring units of surface active monomer, according to the general formula :
wherein:
R' is hydrogen or methyl,
n is0or1to20,
L is
R2 is hydrogen or a hydrocarbon group,
R3 is a monovalent chemical bond or a bivalent aliphatic hydrocarbon group or such group interrupted by the group -COO- or-CONR-, and
Y is a sulpho, sulphato or phosphono group in acid or salt form, and at least one of the groups -(CH2)n-, R2 or R3 is or comprises a hydrocarbon chain of at least 8 C-atoms.
适用于在照相卤化银乳剂材料中均匀加入具有照相用途基团的化合物的胶乳。这种胶乳包含一种共聚物,该共聚物由具有摄影用途基团的单体的重复单元和表面活性单体的重复单元组成,其通式为 :
其中
R' 是氢或甲基、
n 为 0 或 1 至 20、
L 是
R2 是氢或烃基、
R3 是一价化学键或二价脂肪族烃基或被基团-COO-或-CONR-打断的此类基团,以及
Y 是酸或盐形式的硫代、硫酸根或磷酰基,且基团-(CH2)n-、R2 或 R3 中至少有一个是或包含至少 8 个 C 原子的烃链。