申请人:Sanko Kaihatsu Kagaku Kenkyusho
公开号:US05118443A1
公开(公告)日:1992-06-02
A developer comprising at least one polyvalent metal salt of a nuclear substituted salicylic acid of the following general formula is provided. ##STR1## In the formula, R.sub.1 represents an alkyl group having from 1 to 12 carbon atoms, R.sub.2 represents a hydrogen atom or an alkyl group having from 1 to 12 carbon atoms, R.sub.3 represents a hydrogen atom or a methyl group provided that at least one of R.sub.1 and R.sub.2 is a secondary butyl group, a secondary hexyl group, an isohexyl group, a secondary octyl group, an isononyl group, a secondary decyl group, a secondary dodecyl group or an isododecyl group and the total number of the carbon atoms in R.sub.1, R.sub.2 and R.sub.3 is from 9 to 18, M is a polyvalent metal atom, and m is a valence of M. An aqueous dispersion containing the developer and a method for preparing the developer are also described.
提供了至少包含以下通式的核取代水杨酸的多价金属盐的开发者。##STR1## 在该式中,R.sub.1表示具有1至12个碳原子的烷基,R.sub.2表示氢原子或具有1至12个碳原子的烷基,R.sub.3表示氢原子或甲基,前提是R.sub.1和R.sub.2中至少有一个是次丁基、次己基、异己基、次辛基、异壬基、次癸基、次十二烷基或异十二烷基,且R.sub.1、R.sub.2和R.sub.3中碳原子的总数为9至18,M是多价金属原子,m是M的价数。还描述了含有开发剂的水分散体和制备开发剂的方法。