发明授权
- 专利标题: Phase change inks and process for the preparation thereof
- 专利标题(中): 相变油墨及其制备方法
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申请号: US10722164申请日: 2003-11-25
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公开(公告)号: US06878198B1公开(公告)日: 2005-04-12
- 发明人: Stephan V. Drappel , Marcel P. Breton , James D. Mayo , Raymond W. Wong , Christine E. Bedford , Danielle C. Boils-Boissier , Sandra J. Gardner , Paul F. Smith
- 申请人: Stephan V. Drappel , Marcel P. Breton , James D. Mayo , Raymond W. Wong , Christine E. Bedford , Danielle C. Boils-Boissier , Sandra J. Gardner , Paul F. Smith
- 申请人地址: US CT Stamford
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: US CT Stamford
- 代理商 Judith L. Byorick
- 主分类号: C09D11/00
- IPC分类号: C09D11/00
摘要:
Phase change ink compositions comprising (a) an ink carrier comprising a monoamide and a tetra-amide, and (b) pigment particles having oxygen-containing functional groups on the surfaces thereof. Also, processes for preparing a phase change ink which comprise (a) melting a tetra-amide which is solid at about 25° C.; (b) admixing with the molten tetra-amide pigment particles having oxygen-containing functional groups on the surfaces thereof; (c) maintaining the mixture of pigment and tetra-amide at a temperature of at least about 100° C. and at a temperature of no more than about 200° C. for a period sufficient to enable the molten tetra-amide to wet the pigment particle surfaces; (d) subsequent to wetting of the pigment particle surfaces with the molten tetra-amide, adding to the mixture a monoamide; (e) subsequent to addition of the monoamide, subjecting the resulting mixture to high shear mixing; and (f) subsequent to subjecting the mixture to high shear mixing, optionally adding to the mixture additional ink ingredients.
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