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    31.
    发明专利
    未知

    公开(公告)号：DE3680782D1

    公开(公告)日：1991-09-12

    申请号：DE3680782

    申请日：1986-12-24

    Applicant: XEROX CORP

    Inventor： FABIAN ELLIS ,  AGUR ENNO E

    IPC: B29C47/00 ,  B29C47/88 ,  B29C48/32 ,  B29C48/355 ,  B29C48/90 ,  B29C55/26 ,  B29C55/28 ,  B29L7/00 ,  B29L23/00

    Abstract: Apparatus for extruding a pliable, thin-walled tube comprising an extrusion and shaping die assembly (30) comprising an annular die body (34), a mandrel (36) supported within the annular die body, a mandrel extension mounted on the mandrel adjacent the die outlet, the mandrel extension (42) having a diameter less than the diameter of the mandrel and, a sizing disk (31) supported by the mandrel extension. Molten polymeric material is supplied through a die adaptor (33) to the die assembly under pressure to force the material through an annular extrusion flow channel (40) around the mandrel and out the die outlet thereby forming a moving tube (39) of the material. The mandrel extension (42) extends outwardly from the die (30) in the direction in which the tube is extruded, the annular die body having at least one fluid passageway (50,52) to channel fluid introduced under pressure into the annular die body axially through the mandrel (36) and outwardly from the axis of the mandrel extension (42) to form an air pillow adapted to cool and support the tube (39) around and spaced from the mandrel extension. The sizing disk (31) is adapted to restrict escape of the fluid and to define a chamber (54) in cooperation with the tube (39) of the polymeric material for confining the air pillow around the mandrel extension. This apparatus may be employed in a process to prepare a pliable, thin-walled tube.

    LOW MELT TONER
    33.
    发明专利
    LOW MELT TONER 未知

    公开(公告)号：CA2615258A1

    公开(公告)日：2008-06-22

    申请号：CA2615258

    申请日：2007-12-14

    Applicant: XEROX CORP

    Inventor： VEREGIN RICHARD P N ,  SACRIPANTE GUERINO G ,  MCDOUGALL MARIA N V ,  GERROIR PAUL J ,  AGUR ENNO E

    IPC: G03G9/087 ,  G03G9/08

    Abstract: A toner includes binder of amorphous polymer material, such as an amorphous polyester material, and a crystalline polymer material, such as a crystalline polyester material, wherein the amorphous polymer material has an acid number that is greater than an acid number of the crystalline polymer material. Further, the toner may have a minimum fusing temperature of from about 75°C to about 150°C and a relative humidity sensitivity of from about 0.5 to about 10. A method of making toner particles is also indicated.

    WAX EMULSION FOR EMULSION AGGREGATION TONER
    36.
    发明专利
    WAX EMULSION FOR EMULSION AGGREGATION TONER 未知

    公开(公告)号：CA2508511A1

    公开(公告)日：2005-12-04

    申请号：CA2508511

    申请日：2005-05-27

    Applicant: XEROX CORP

    Inventor： BURNS PATRICIA A ,  BARTEL JOSEPH A ,  KAO SHEAU V ,  AGUR ENNO E ,  BOILS-BOISSIER DANIELLE C

    IPC: C08J3/215 ,  C08K5/00 ,  C08K5/01 ,  C08L91/06 ,  G03G9/08 ,  G03G9/087

    Abstract: A wax emulsion comprised of polyethylene wax and one or more surfactant s in an aqueous medium, wherein the polyethylene wax has a degree of crystallinity of from about 50% to about 80% by weight of the polyethylene wax, is provided. The wax emulsion is made by emulsifying the polyethylene wax, one or more surfactants and an aqueous medium in a vessel at a temperature at or above the melting point of the polyethylene wax to form an emulsified product, and subsequently cooling the emulsified product to ambient temperature at a cooling rate of at least 10.degree.C per minute. The wax emulsion is preferably incorporated into toner particles prepared by emulsion/aggregation/coalescing.

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