发明授权
- 专利标题： Substituted carboxylic acids as adjuvants for positive electrostatic liquid developers
- 专利标题（中）： 取代的羧酸作为正静电液体显影剂的佐剂
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申请号： US408222申请日： 1989-09-05
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公开(公告)号： US5002848A公开(公告)日： 1991-03-26
- 发明人: Lyla M. El-Sayed , Loretta Ann G. Page , Kathryn A. Pearlstine
- 申请人： Lyla M. El-Sayed , Loretta Ann G. Page , Kathryn A. Pearlstine
- 申请人地址： DE Wilmington
- 专利权人： E. I. Du Pont de Nemours and Company
- 当前专利权人： E. I. Du Pont de Nemours and Company
- 当前专利权人地址： DE Wilmington
- 主分类号： G03G9/13
- IPC分类号： G03G9/13 ; G03G9/135
摘要：
A positive-working electrostatic liquid developer consisting essentially of (A) a nonpolar liquid having a Kauri-butanol value of less than 30, present in major amount, (B) thermoplastic resin particles, less than 10 .mu.m average by area particle size, (C) a nonpolar liquid soluble ionic or zwitterionic charge director compound, and (D) a substituted carboxylic acid or salt adjuvant as defined. Component (D) can be present in liquid (A) or dispersed in the resin particles. The process of preparation of the electrostatic liquid developer is described. The liquid developers are useful in copying, color proofing including digital color proofing, lithographic printing plates and resists.
公开/授权文献
- US5776727A DNA, polypeptides, monoclonal antibody and methods thereof 公开/授权日：1998-07-07
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