公开(公告)号：BRPI0800178B1

公开(公告)日：2018-06-26

申请号：BRPI0800178

申请日：2008-01-25

Applicant: XEROX CORP

Inventor： BIRITAWIT ASFAW ,  GUERINO G SACRIPANTE ,  MICHAEL S HAWKINS ,  RICHARD P N VEREGIN ,  ROSA M DUQUE ,  VALERIE M FARRUGIA

IPC: G03G9/08

Abstract: composições de toner. a presente invenção refere-se a toners preparados pelo processo de agregação em emulsão compreendendo uma resina amorfa e uma resina cristalina nucleada. esses toners demonstram melhor desempenho de carga na zona a e na zona c, melhor coesão térmica e melhor resistividade.

公开(公告)号：BRPI0604278B1

公开(公告)日：2018-02-06

申请号：BRPI0604278

申请日：2006-10-17

Applicant: XEROX CORP

Inventor： BIRITAWIT ASFAW ,  EDWARD G ZWARTZ ,  RAJ D PATEL

IPC: G03G9/087 ,  G03G15/14

Abstract: emulsão de agregação de toner incorporando sílica aluminizada como um agente coagulante. o toner inclui partículas de emulsão de agregação de toner tendo um núcleo e um envoltório. o núcleo inclui um aglutinante incluindo um primeiro polímero de acrilato de estireno não-reticulado e um polímero de acrilato de estireno reticulado, pelo menos um corante, pelo menos uma cera, e sílica aluminizada. o envoltório inclui um segundo polímero de acrilato de estireno não-reticulado, que é de preferência o mesmo como o primeiro polímero de acrilato de estireno não-reticulado do núcleo. a sílica aluminizado é usada vantajosamente como um coagulante no processo de formação da emulsão de agregação do toner. um revelador contendo o toner e um método para a formação de uma imagem usando o toner também estão descritos.

公开(公告)号：GB2479231B

公开(公告)日：2016-04-27

申请号：GB201104028

申请日：2011-03-09

Applicant: XEROX CORP

Inventor： GUERINO G SACRIPANTE ,  DARYL W VANBESIEN ,  BIRITAWIT ASFAW ,  ROSA M DUQUE ,  SONJA HADZIDEDIC

IPC: C08L67/02 ,  C09D167/02 ,  G03G9/087

Abstract: Embodiments include a toner having a polyester resin derived from diacids and diesters, in combination with at least one diol, in embodiments a cycloaliphatic diol, an optional crystalline resin, an optional colorant, and an optional wax.

公开(公告)号：JP2012226318A

公开(公告)日：2012-11-15

申请号：JP2012063659

申请日：2012-03-21

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： FARRUGIA VALERIE M ,  BIRITAWIT ASFAW

IPC: G03G9/08 ,  G03G9/087

CPC classification number: C08G63/668 ,  C08G63/12 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/08755 ,  G03G9/08775 ,  G03G9/08782 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09328 ,  G03G9/09371 ,  G03G2215/00957

Abstract: PROBLEM TO BE SOLVED: To provide a polyester resin which uses bio-based reagents and can reduce carbon dioxide emissions and enhance branching and crosslinking, and a toner for an imaging device using the same.SOLUTION: A toner composition comprises a mixture forming a polyester resin, a biopolyol containing a sugar or sugar alcohol, and optionally one or more of a colorant, a wax, a surfactant, a chelating agent, an initiator, a catalyst and a coagulant.

Abstract translation: 要解决的问题：提供使用生物基试剂并可以减少二氧化碳排放并增强分支和交联的聚酯树脂，以及使用该聚酯树脂的成像装置的调色剂。 解决方案：调色剂组合物包含形成聚酯树脂的混合物，含有糖或糖醇的生物多元醇，以及任选的一种或多种着色剂，蜡，表面活性剂，螯合剂，引发剂，催化剂和 凝结剂。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2013134496A

公开(公告)日：2013-07-08

申请号：JP2012265412

申请日：2012-12-04

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： SACRIPANTE GUERINO G ,  ZHOU KE ,  DUQUE ROSA M ,  SONJA HADZIDEDIC ,  BIRITAWIT ASFAW

IPC: G03G9/087 ,  C08G63/18 ,  C08L101/16

CPC classification number: G03G9/08795 ,  G03G9/081 ,  G03G9/08755 ,  G03G9/08797

Abstract: PROBLEM TO BE SOLVED: To provide a toner composition containing a completely biodegradable resin which does not contain bisphenol A component adversely affecting the environment and does not use highly toxic epoxides.SOLUTION: A toner contains a bio-based amorphous polyester resin containing a reaction product of a rosin diol and a diacid. The rosin diol is generated from a rosin acid and a glycerine carbonate. The product is present in an amount of from about 40 to about 80 wt.% based on the toner solids. Alternatively, the bio-based amorphous polyester is generated by reaction of a rosin acid with a glycerine carbonate in the presence of a catalyst, and subsequently the resulting rosin diol generated as above is reacted with a dicarboxylic acid.

Abstract translation: 要解决的问题：提供一种含有不含双酚A成分的完全生物降解性树脂的调色剂组合物，其不利地影响环境并且不使用高毒性环氧化物。溶液：调色剂含有含有反应产物的生物基非晶形聚酯树脂 的松香二醇和二酸。 松香二醇由松香酸和碳酸甘油产生。 基于调色剂固体，产物的存在量为约40至约80重量％。 或者，通过在催化剂的存在下使松香酸与碳酸甘油反应来生成生物基非晶体聚酯，随后将所得到的所得松香二醇与二羧酸反应。

公开(公告)号：JP2014137598A

公开(公告)日：2014-07-28

申请号：JP2014001912

申请日：2014-01-08

Applicant: Xerox Corp ,  ゼロックス コーポレイションXerox Corporation

Inventor： RICHARDS-JOHNSON ROXAN ,  JORDAN H WOSNICK ,  KAREN A MOFFAT ,  EDWARD GRAHAM ZWARTZ ,  BIRITAWIT ASFAW ,  VEREGIN RICHARD P N ,  KUON HWON ,  ERIC ROTBERG

IPC: G03G9/08 ,  C09B57/10 ,  G03G9/087 ,  G03G9/09

CPC classification number: G03G9/0975 ,  C09K11/06 ,  C09K2211/182

Abstract: PROBLEM TO BE SOLVED: To provide a UV red fluorescent toner that exhibits narrow size distribution and good xerographic performance, and a method of producing the toner.SOLUTION: The present disclosure relates to a toner design for a clear UV red fluorescent toner having a high lanthanide complex pigment loading. The design uses a saccharide or a sugar acid as a stabilizer to avoid complexation of lanthanide ions from the pigment. In addition, lower aggregation temperature and coalescence temperature in the preparation of toner particles result in particles that exhibit a high fluorescent pigment loading, a narrow size distribution and good xerographic performance.

Abstract translation: 要解决的问题：提供显示窄尺寸分布和良好静电印刷性能的UV红色荧光调色剂，以及制备调色剂的方法。本公开涉及一种具有高的UV透明调色剂的调色剂设计 镧系复合颜料负载。 该设计使用糖或糖酸作为稳定剂，以避免镧系元素离子与颜料的络合。 此外，在调色剂颗粒的制备中聚合温度和聚结温度较低会导致显示高荧光颜料负载，窄尺寸分布和良好静电印刷性能的颗粒。