TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE

    公开(公告)号:JPH1078674A

    公开(公告)日:1998-03-24

    申请号:JP21438397

    申请日:1997-08-08

    Applicant: BASF AG

    Inventor: CZECH ERWIN DR

    Abstract: PROBLEM TO BE SOLVED: To obtain a toner having an improved pulverizing behavior by incorporating at least one of a part having a specified steel ball indentation hardness and a perfectly tactic polyalkylene wax. SOLUTION: This toner contains 10-95wt.% at least one kind of resin binder, 0.01-40wt.% at least one of a part having a number average mol.wt. of 2,000-12,000 and at least 800 bar steel ball indent hardness and perfectly tactic polyalkylene wax and 0.1-10wt.% colorant or further contains other components if necessary. The resin binder is styrene-alkyl methacrylate resin or styreneacrylic acid resin, e.g. styrene-butyl methacrylate resin contg. 50-90wt.%, preferably 70-85wt.% styrene and 10-50wt.%, preferably 15-30wt.% butyl methacrylate. The polyalkylene wax is polypropylene wax.

    4.
    发明专利
    未知

    公开(公告)号:DE3831091A1

    公开(公告)日:1990-03-29

    申请号:DE3831091

    申请日:1988-09-13

    Applicant: BASF AG

    Abstract: The novel carriers consist of steel cores which have an iron oxide- containing coating of the formula (FeO)x . Fe2O3 where x = 0.1 - 1. The carriers are stable and effective over long cycle times (6 .10 prints). … The carriers are obtained by treating steel cores (steel spheres) with defined small amounts of sulphuric acid of defined concentration, partial oxidation of the treated cores and drying at 60-150 DEG C at

    6.
    发明专利
    未知

    公开(公告)号:DE58904063D1

    公开(公告)日:1993-05-19

    申请号:DE58904063

    申请日:1989-08-31

    Applicant: BASF AG

    Abstract: The novel carriers consist of steel cores which have an iron oxide- containing coating of the formula (FeO)x . Fe2O3 where x = 0.1 - 1. The carriers are stable and effective over long cycle times (6 .10 prints). … The carriers are obtained by treating steel cores (steel spheres) with defined small amounts of sulphuric acid of defined concentration, partial oxidation of the treated cores and drying at 60-150 DEG C at

    8.
    发明专利
    未知

    公开(公告)号:DE59601409D1

    公开(公告)日:1999-04-15

    申请号:DE59601409

    申请日:1996-07-18

    Applicant: BASF AG

    Abstract: Ball pen ink contains a phthalocyanine pigment (I) and usual resin and organic solvent and opt. other usual additives. The ink is made by kneading (I) in resin in the presence of water, then removing the water by decantation; milling the cooled (I)/resin formulation; dispersing it in the organic solvent; and opt. incorporating additive(s) (claimed).

    10.
    发明专利
    未知

    公开(公告)号:DE19527372A1

    公开(公告)日:1997-01-30

    申请号:DE19527372

    申请日:1995-07-27

    Applicant: BASF AG

    Abstract: Ball pen ink contains a phthalocyanine pigment (I) and usual resin and organic solvent and opt. other usual additives. The ink is made by kneading (I) in resin in the presence of water, then removing the water by decantation; milling the cooled (I)/resin formulation; dispersing it in the organic solvent; and opt. incorporating additive(s) (claimed).

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