发明授权
- 专利标题: Toner composition and processes thereof
- 专利标题(中): 调色剂组合物及其工艺
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申请号: US936471申请日: 1992-08-28
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公开(公告)号: US5278020A公开(公告)日: 1994-01-11
- 发明人: Bernard Grushkin , Guerino G. Sacripante
- 申请人: Bernard Grushkin , Guerino G. Sacripante
- 申请人地址: CT Stamford
- 专利权人: Xerox Corporation
- 当前专利权人: Xerox Corporation
- 当前专利权人地址: CT Stamford
- 主分类号: G03G9/08
- IPC分类号: G03G9/08 ; G03G9/087 ; G03C5/00
摘要:
A toner composition and processes for the preparation thereof comprising the steps of: (i) preparing a latex emulsion by agitating in water a mixture of a nonionic surfactant, an anionic surfactant, a first nonpolar olefinic monomer, a second nonpolar diolefinic monomer, a free radical initiator and a chain transfer agent; (ii) polymerizing the latex emulsion mixture by heating from ambient temperature to about 80.degree. C. to form nonpolar olefinic emulsion resin particles of volume average diameter from about 5 nanometers to about 500 nanometers; (iii) diluting the nonpolar olefinic emulsion resin particle mixture with water; (iv) adding to the diluted resin particle mixture a colorant or pigment particles and optionally dispersing the resulting mixture with a homogenizer; (v) adding a cationic surfactant to flocculate the colorant or pigment particles to the surface of the emulsion resin particles; (vi) homogenizing the flocculated mixture at high shear to form statically bound aggregated composite particles with a volume average diameter of less than or equal to about 5 microns; (vii) heating the statically bound aggregate composite particles to form nonpolar toner sized particles; (viii) optionally halogenating the nonpolar toner sized particles to form nonpolar toner sized particles having a halopolymer resin outer surface or encapsulating shell; and (ix) isolating the nonpolar toner sized composite particles.
公开/授权文献
- US5819390A Fabrication of hidden storage/utility system 公开/授权日:1998-10-13
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