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公开(公告)号：DE60127913T2
公开(公告)日：2007-09-06
申请号：DE60127913
申请日：2001-09-18
Applicant: XEROX CORP
Inventor： SILENCE SCOTT M , GUTMAN EDWARD J , PROPER JAMES M , REITZE FRANK , GIANNETTO BRIAN S , MOORE BRIAN E , CHUNG JOO T , STENZEL JAMES G , DEBARR JEFFREY L , DEYOUNG MORRIS M JR
Abstract: A toner of toner particles containing at least one binder, at least one colorant, and an external additive package comprised of zinc stearate and at least one of silicon dioxide or titanium dioxide, wherein the amount of zinc stearate is limited to about 0.10 percent by weight or less of the toner. It has been surprisingly found that when the amount of zinc stearate is so limited, a developer formed from the toner exhibits excellent triboelectric charging and stability and excellent developer flow. When the developer is used in a magnetic brush development system, consistent, high quality copy images are formed substantially without any depletion defects over time.
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公开(公告)号：DE60127913D1
公开(公告)日：2007-05-31
申请号：DE60127913
申请日：2001-09-18
Applicant: XEROX CORP
Inventor： SILENCE SCOTT M , GUTMAN EDWARD J , PROPER JAMES M , REITZE FRANK , GIANNETTO BRIAN S , MOORE BRIAN E , CHUNG JOO T , STENZEL JAMES G , DEBARR JEFFREY L , DEYOUNG MORRIS M JR
Abstract: A toner of toner particles containing at least one binder, at least one colorant, and an external additive package comprised of zinc stearate and at least one of silicon dioxide or titanium dioxide, wherein the amount of zinc stearate is limited to about 0.10 percent by weight or less of the toner. It has been surprisingly found that when the amount of zinc stearate is so limited, a developer formed from the toner exhibits excellent triboelectric charging and stability and excellent developer flow. When the developer is used in a magnetic brush development system, consistent, high quality copy images are formed substantially without any depletion defects over time.
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公开(公告)号：CA2399688C
公开(公告)日：2006-06-06
申请号：CA2399688
申请日：2002-08-23
Applicant: XEROX CORP
Inventor： OWENS JERRY G , CASALMIR D PAUL , BAER GERALDINE , PROPER JAMES M , MOLISANI YING S , SILENCE SCOTT M , MORALES-TIRADO JUAN A , KUMAR SAMIR
Abstract: The present invention relates to a high intensity blending apparatus, particularly for blending operations designed to cause additive materials to become affixed to the surface of base particles. More particularly, the proposed invention relates to an improved blending tool fo r producing surface modifications to electrophotographic and related toner particles. The tool comprises a shank having riser members at each end, such risers being angled to the axis of the shank between 10 and 16 degrees.
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公开(公告)号：DE60211082T2
公开(公告)日：2006-09-14
申请号：DE60211082
申请日：2002-08-30
Applicant: XEROX CORP
Inventor： KUMAR SAMIR , MORALES-TIRADO JUAN A , CASALMIR PAUL D , SILENCE SCOTT M , MOLISANI YING S , PROPER JAMES M , JACOBS PAUL L , BAER GERALDINE
Abstract: The present invention relates to a toner and process for making the improved toner. The improved toner comprises a toner resin comprising: at least one colorant; (b) at least one toner resin mixed with the colorant and formed into combined colorant and resin particles having an average size less than 15 microns ; and (c) surface additive particles wherein the surface additives are adhered to the colorant and toner resin by an impaction process in a quantity greater than three (3) percent of the combined weight of resin and colorant in the toner. The invention also relates to an improved process for making toners, comprising: (a) forming toner particles averaging 4 to 10 microns in size and comprised of at least one toner resin and at least one colorant; and (b) blending sufficient surface additive particles and the toner particles in a high intensity blender for less than 10 minutes such that the weight of surface additives that become attached to toner particles is greater than three (3) percent of the weight of the classified particles
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公开(公告)号：DE60204740D1
公开(公告)日：2005-07-28
申请号：DE60204740
申请日：2002-08-30
Applicant: XEROX CORP
Inventor： KUMAR SAMIR , MORALES-TIRADO JUAN A , CASALMIR D PAUL , SILENCE SCOTT M , MOLISANI YING S , PROPER JAMES M , OWENS JERRY G , BAER GERALDINE
Abstract: The present invention relates to a high intensity blending apparatus, particularly for blending operations designed to cause additive materials to become affixed to the surface of base particles. More particularly, the proposed invention relates to an improved blending tool for producing surface modifications to electrophotographic and related toner particles. The tool comprises a shank having riser members at each end, such risers being angled to the axis of the shank between 10 and 16 degrees.
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Patent Agency Ranking
公开(公告)号：DE69815923D1
公开(公告)日：2003-08-07
申请号：DE69815923
申请日：1998-04-03
Applicant: XEROX CORP
Inventor： PROPER JAMES M , BURROUGHS ANTHONY T , LEONARDO JOSEPH L , KNOPP DANIEL R , DEVLIN MARK V
IPC: B29C47/70 , B29C48/30 , B29C48/305 , B29K21/00 , B29K67/00 , B29K105/24 , B29C47/14 , B29B9/06 , B29C47/30
Abstract: A method and apparatus for successfully extruding polymers that have relatively high Deborah numbers is disclosed. Specifically, the invention is directed to an extrusion die for manufacturing viscoelastic and similar polymers while reducing or eliminating die swell. These polymers typically exhibit Deborah numbers that are in the range of 20 to 30 as compared to 1 to 5 of styrene butadiene, as well as high elasticity or elastic modulus. The method and apparatus can be used to manufacture xerographic toner that has a relatively low melting temperature, which can cause a reduction in the power consumption of a printer or copier, and can increase the life of some of the fuser components contained within the machine. More importantly, use of toner particles created using the present invention can reduce or eliminate the phenomenon known as "vinyl off set," which causes the transfer of a hard copy image onto a vinyl material.
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公开(公告)号：CA2399572A1
公开(公告)日：2003-02-28
申请号：CA2399572
申请日：2002-08-23
Applicant: XEROX CORP
Inventor： KUMAR SAMIR , BAER GERALDINE , JACOBS PAUL L , MORALES-TIRADO JUAN A , PROPER JAMES M , MOLISANI YING S , CASALMIR D PAUL , SILENCE SCOTT M
Abstract: The present invention relates to a toner and process for making the improved toner. The improved toner comprises a toner resin comprising: at least one colorant; (b) at least one toner resin mixed with the colorant and formed into combined colorant and resin particles having an average size les s than 15 microns ; and (c) surface additive particles wherein the surface additives are adhered to the colorant and toner resin by an impaction proces s in a quantity greater than three (3) percent of the combined weight of resin and colorant in the toner. The invention also relates to an improved process for making toners, comprising: (a) forming toner particles averaging 4 to 10 microns in size and comprised of at least one toner resin and at least one colorant; and (b) blending sufficient surface additive particles and the ton er particles in a high intensity blender for less than 10 minutes such that the weight of surface additives that become attached to toner particles is great er than three (3) percent of the weight of the classified particles -37-
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公开(公告)号：DE60211082D1
公开(公告)日：2006-06-08
申请号：DE60211082
申请日：2002-08-30
Applicant: XEROX CORP
Inventor： KUMAR SAMIR , MORALES-TIRADO JUAN A , CASALMIR PAUL D , SILENCE SCOTT M , MOLISANI YING S , PROPER JAMES M , JACOBS PAUL L , BAER GERALDINE
Abstract: The present invention relates to a toner and process for making the improved toner. The improved toner comprises a toner resin comprising: at least one colorant; (b) at least one toner resin mixed with the colorant and formed into combined colorant and resin particles having an average size less than 15 microns ; and (c) surface additive particles wherein the surface additives are adhered to the colorant and toner resin by an impaction process in a quantity greater than three (3) percent of the combined weight of resin and colorant in the toner. The invention also relates to an improved process for making toners, comprising: (a) forming toner particles averaging 4 to 10 microns in size and comprised of at least one toner resin and at least one colorant; and (b) blending sufficient surface additive particles and the toner particles in a high intensity blender for less than 10 minutes such that the weight of surface additives that become attached to toner particles is greater than three (3) percent of the weight of the classified particles
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公开(公告)号：DE60113790T2
公开(公告)日：2006-06-08
申请号：DE60113790
申请日：2001-12-18
Applicant: XEROX CORP
Inventor： PROPER JAMES M
Abstract: A blending tool (50) with an enlarged collision profile (55) and method of use by rotation in a blending machine. The blending tool (50) comprises an enlarged collision surface (55) fixed at the end of the tool's center shank (51) wherein at least half of the trailing surface of the collision surface is negatively sloped.
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公开(公告)号：DE60113790D1
公开(公告)日：2006-02-16
申请号：DE60113790
申请日：2001-12-18
Applicant: XEROX CORP
Inventor： PROPER JAMES M
Abstract: A blending tool (50) with an enlarged collision profile (55) and method of use by rotation in a blending machine. The blending tool (50) comprises an enlarged collision surface (55) fixed at the end of the tool's center shank (51) wherein at least half of the trailing surface of the collision surface is negatively sloped.
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