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公开(公告)号:CA2888047C
公开(公告)日:2018-02-27
申请号:CA2888047
申请日:2015-04-13
Applicant: XEROX CORP
Inventor: KELLY BERNARD A , DOMBROSKI THOMAS C , GIANNETTO BRIAN S , MOORE BRIAN E , SPENCER LLOYD D , VEREGIN RICHARD P N , MOFFAT KAREN A , ENRIGHT THOMAS E , FARRUGIA VALERIE M , HAWKINS MICHAEL S , BASHIR WAFA F
IPC: G03G9/113
Abstract: Disclosed is a carrier suitable for use with an electrophotographic developer and an electrophotographic developer containing the carrier. In particular, the carrier is powder coated and comprises a copolymer of cyclohexylmethacrylate and dimethylaminoethylmethacrylate.
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公开(公告)号:CA2855779C
公开(公告)日:2018-01-23
申请号:CA2855779
申请日:2014-07-03
Applicant: XEROX CORP , NAT RES COUNCIL CANADA
Inventor: MYLES ANDREW J , MOFFAT KAREN A , WOSNICK JORDAN H , FARRUGIA VALERIE M
Abstract: A ring-opening polymerization (ROP) comprises: a. contacting a first cyclic component, at least one catalyst and at least one initiator; b. polymerizing the first cyclic component to form a homopolymer; c. contacting the homopolymer and a cyclic carbonate; d. polymerizing the cyclic carbonate to the homopolymer to form a first block copolymer; e. contacting the first block copolymer and a second cyclic component; and f. polymerizing the second cyclic component to the first block copolymer to form a second block copolymer; wherein the contacting and polymerizing are carried out under neat conditions, without an inert gas blanket, in a single vessel.
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公开(公告)号:CA2869880C
公开(公告)日:2017-04-25
申请号:CA2869880
申请日:2014-11-04
Applicant: XEROX CORP
Inventor: WOSNICK JORDAN H , ZHOU KE , MORIMITSU KENTARO , HAWKINS MICHAEL S , ZWARTZ EDWARD G , FARRUGIA VALERIE M
Abstract: A toner includes a polymeric resin, optionally a colorant, and a small molecule crystalline imide having a molecular weight less than 1,000 g/mol. The polymeric resin may be an amorphous resin and a mixture of the amorphous resin and the crystalline imide may be characterized by a reduction in glass transition temperature from that of the resin and by the lack of a melting point for the crystalline imide as determined by differential scanning calorimetry, the enthalpy of fusion for the crystalline imide in the mixture being measured to be less than 10% of the enthalpy of fusion of the crystalline imide in pure form. Furthermore, the toner may be configured to have a crease fix minimum fusing temperature (MFT) less than or equal to the crease fix MFT of a benchmark ultra-low-melt emulsion aggregation toner. Suitable crystalline imides may include N-alkyl and N-aryl imides, such as N-benzylphthalimide.
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公开(公告)号:CA2836731C
公开(公告)日:2017-02-21
申请号:CA2836731
申请日:2013-12-13
Applicant: XEROX CORP
Inventor: FARRUGIA VALERIE M , DUQUE ROSA M
Abstract: The present disclosure provides a bio-based, branched polyester resin comprising the condensation product of a hydroxyl donor and a cyclic polyhydroxyl acceptor that may be used with a polyacid to form a polyester which may be used in manufacturing toner for imaging devices.
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公开(公告)号:GB2477202B
公开(公告)日:2016-03-16
申请号:GB201100904
申请日:2011-01-19
Applicant: XEROX CORP
Inventor: VANBESIEN DARYL W , DALAL EDUL N , MOFFAT KAREN A , WONG RAYMOND W , ALLEN GEOFFREY C , BIRAU MARIA , VEREGIN RICHARD P N , WOSNICK JORDAN , FARRUGIA VALERIE M
Abstract: A light-cyan solid ink including an ink vehicle and a colorant. The colorant includes a cyan colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 500 to about 600 nm, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm.
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公开(公告)号:MX336450B
公开(公告)日:2016-01-20
申请号:MX2012004181
申请日:2012-04-09
Applicant: XEROX CORP
Inventor: FARRUGIA VALERIE M , ASFAW BIRITAWIT
IPC: C08G63/12 , C08G63/685 , C08J3/16 , G03G9/08
Abstract: Se describe una composición formadora de pigmento orgánico de resma de poliéster que contiene un biopoliol. El biopoliol puede mejorar la ramificación, reticulación o ambas.
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公开(公告)号:MX2014013051A
公开(公告)日:2015-05-28
申请号:MX2014013051
申请日:2014-10-27
Applicant: XEROX CORP
Inventor: ZHOU KE , WOSNICK JORDAN H , ZWARTZ EDWARD G , HAWKINS MICHAEL S , MORIMITSU KENTARO , FARRUGIA VALERIE M
Abstract: Se proporciona un pigmento orgánico que incluye una resina polimérica, opcionalmente un colorante y una imida cristalina de molécula pequeña que tiene un peso molecular menor de 1,000 g/mol. La resina polimérica puede ser una resina amorfa y una mezcla de la resina amorfa y la imida cristalina se puede caracterizar por una reducción en la temperatura de transición vítrea con respecto a la de la resina y por la carencia de un punto de fusión para la imida cristalina según se determina por calorimetría de exploración diferencial, la entalpía de fusión para la imida cristalina en la mezcla se mide para que sea menor de 10% de la entalpía de fusión de la imida cristalina en forma pura. Además, el pigmento orgánico se puede configurar para tener una temperatura de fusión mínima (MFT, por sus siglas en inglés) de fijación de corrugado menor que o igual a la MFT de fijación de corrugado de un pigmento orgánico de agregación por emulsión de fusión ultra baja distintivo. Las imidas cristalinas adecuadas pueden incluir N-alquil y N-aril imidas, tales como N-bencilftalimida.
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公开(公告)号:DE102014222242A1
公开(公告)日:2015-05-13
申请号:DE102014222242
申请日:2014-10-30
Applicant: XEROX CORP
Inventor: WOSNICK JORDAN H , ZHOU KE , MORIMITSU KENTARO , HAWKINS MICHAEL S , ZWARTZ EDWARD G , FARRUGIA VALERIE M
Abstract: Ein Toner umfasst ein Polymerharz, optional ein Farbmittel und ein niedermolekulares, kristallines Imid mit einer Molekularmasse mit weniger als 1.000 g/mol. Das Polymerharz kann ein amorphes Harz sein, und eine Mischung des amorphen Harzes und des kristallinen Imids kann durch eine Verringerung der Glasübergangstemperatur des Harzes und durch Fehlen eines Schmelzpunkts für das kristalline Imid gekennzeichnet sein, wie mittels dynamischer Differenzkalorimetrie bestimmt, wobei die Fixierenthalpie des kristallinen Imids in der Mischung weniger als 10% der Fixierenthalpie des kristallinen Imids in Reinform misst. Weiter kann der Toner so gestaltet sein, dass er eine Crease Fix-Mindestfixiertemperatur (MFT) aufweist, die geringer oder vergleichbar der Crease Fix-MFT eines Benchmark-Ultra-Low-Melt-Emulsionsaggregationstoners ist. Geeignete kristalline Imide können N-Alkyl- und N-Arylimid umfassen, wie N-Benzylphthalimid.
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公开(公告)号:CA2727505C
公开(公告)日:2015-03-24
申请号:CA2727505
申请日:2011-01-12
Applicant: XEROX CORP
Inventor: DALAL EDUL N , VANBESIEN DARYL W , MOFFAT KAREN A , WONG RAYMOND W , ALLEN C GEOFFREY , BIRAU MARIA , VEREGIN RICHARD P N , WOSNICK JORDAN , FARRUGIA VALERIE M
Abstract: A light-cyan solid ink including an ink vehicle and a colorant. The colorant includes a cyan colorant, a hue-adjusting colorant that absorbs light having a wavelength of from about 500 to about 600 nm, and an optional shade-adjusting colorant that absorbs light having a wavelength of from about 400 to about 500 nm.
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公开(公告)号:GB2478404B
公开(公告)日:2015-03-18
申请号:GB201103171
申请日:2011-03-10
Applicant: XEROX CORP
Inventor: FARRUGIA VALERIE M , SACRIPANTE GUERINO G , ZHOU KE , ZWARTZ EDWARD G , HAWKINS MICHAEL S
Abstract: Disclosed are amorphous polyesters that contain only renewable resources designed for emulsion aggregation toner fabrication. The amorphous polyesters may be obtained from the mixture of three different monomers: 1,4:3,6-dianhydro-D-sorbitol (isosorbide), nonanedioic acid (azelaic acid), and butanedioic acid (succinic acid). Different polymer properties may be achieved depending on the ratio of these three monomers. By altering the ratio, polymers of high to low acid value can be obtained, as well as different ranges of glass transition temperatures.
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