发明授权
- 专利标题： Water based selectable charge magnetic inks
- 专利标题（中）： 水性可选充电磁性油墨
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申请号： US773578申请日： 1977-03-02
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公开(公告)号： US4107063A公开(公告)日： 1978-08-15
- 发明人: Zlata Kovac , Carlos Juan Sambucetti
- 申请人： Zlata Kovac , Carlos Juan Sambucetti
- 申请人地址： NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： NY Armonk
- 主分类号： C09D11/00
- IPC分类号： C09D11/00 ; C09C1/24 ; C09D5/23 ; H01F1/44 ; H01F41/16 ; H01F1/28
摘要：
Water based magnetic colloidal fluids, useable as inks, when prepared by coating chemically precipitated magnetite (Fe.sub.3 O.sub.4) with an adsorption site providing coating agent including certain organic anions, such as sulfates, sulfonates or amino carboxilates, and then dispersing the coated product with non-ionic, anionic or cationic surfactants may exhibit selectably cationic, anionic or non-ionic charge responsiveness.
公开/授权文献
- US4632361A Scheduled fluid control valve 公开/授权日：1986-12-30
信息查询
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