TONER PARTICLES COMPRISING COLORANT-POLYESTERS

    公开(公告)号:CA2770010A1

    公开(公告)日:2012-09-09

    申请号:CA2770010

    申请日:2012-03-02

    Applicant: XEROX CORP

    Abstract: A toner composition including a colorant-polyester polymer having at least one colorant and at least one polyester resin, an optional non-colorant polyester polymer, an optional additional colorant, an optional wax, and an optional additive, where the colorant is covalently linked to some or all of the polyester resin and the polyester resin is obtained by polymerizing a lactone using an enzyme catalyst. Methods for preparing a toner composition including an emulsion aggregation process.

    CONTINUOUS EMULSIFICATION-AGGREGATION PROCESS FOR THE PRODUCTION OF PARTICLES

    公开(公告)号:CA2766716A1

    公开(公告)日:2012-08-11

    申请号:CA2766716

    申请日:2012-02-03

    Applicant: XEROX CORP

    Abstract: A continuous emulsion aggregation process for the production of particles is presented including a plurality of continuous stirred-tank reactors (CSTR). The plurality of continuous stirred-tank reactors includes at least one feed tank of raw materials, at least one reactor for facilitating cold addition, at least two reactors for facilitating an aggregation process, at least one reactor for facilitating a shell addition process; at least one reactor for facilitating a freeze process, at least one reactor for facilitating a chelating process, at least one reactor for facilitating a ramp-up process and at least one reactor for facilitating a coalescence process, wherein the reactors are sequentially assembled in a series configuration and separated by short conduits to produce toner particles that are narrowly distributed.

    TONER COMPOSITION AND PROCESS
    30.
    发明专利

    公开(公告)号:CA2957093C

    公开(公告)日:2020-08-04

    申请号:CA2957093

    申请日:2017-02-03

    Applicant: XEROX CORP

    Abstract: A toner composition comprising (a) a first lower molecular weight amorphous polyester resin comprising a polyester derived from dodecenyl succinic acid, dodecenyl succinic anhydride, or a combination thereof present in an amount of from about 5 to about 15 weight percent, based on the total weight of the first amorphous polyester; (b) a second higher molecular weight amorphous polyester resin comprising a polyester derived from dodecenyl succinic acid, dodecenyl succinic anhydride, or a combination thereof, and a branching agent derived from a polyacid or polyol component; wherein the dodecenyl succinic acid, dodecenyl succinic anhydride, or combination thereof is present in the second amorphous polyester in an amount of from about 5 to about 15 weight percent, based on the total weight of the second amorphous polyester; (c) a crystalline polyester resin; (d) a wax; and (e) optionally, a colorant.

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