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公开(公告)号：BR0201954A
公开(公告)日：2003-04-22
申请号：BR0201954
申请日：2002-05-24
Applicant: XEROX CORP
Inventor： FOUCHER DANIEL A , PATEL RAJ D , CHOPRA NAVEEN , KAZMAIER PETER M , BUNCEL ERWIN , WOJTYK JAMES
Abstract: Disclosed is a display comprising an arrangement of a plurality of optically anisotropic rotatable elements, each of the rotatable elements having a surface in contact with an enabling fluid, the rotatable elements being electrically dipolar in the presence of the enabling fluid and thus being subject to rotation upon application of an electric field, the rotatable elements being free to rotate in place but not free to translate substantially so as to disrupt the arrangement of rotatable elements, wherein a first portion of the surface contains a mixture of a chelating agent and a spiropyran material of the formula or wherein n is an integer representing the number of repeat -CH2- units and R is -H or -CH=CH2, and wherein a second portion of the surface contains substantially no spiropyran.
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公开(公告)号：JPH11258853A
公开(公告)日：1999-09-24
申请号：JP673899
申请日：1999-01-13
Applicant: XEROX CORP
Inventor： FOUCHER DANIEL A , PATEL RAJ D , SACRIPANTE GUERINO G , MYCHAJLOWSKIJ WALTER
Abstract: PROBLEM TO BE SOLVED: To obtain a process of controlling the particle diameter of a toner and to prepare a toner having a narrow particle size distribution. SOLUTION: When a toner is prepd. through a 1st aggregation step in which dispersed sulfonated polyester particles are aggregated and a 2nd aggregation step in which the aggregates obtd. in the 1st step are aggregated along with a colorant dispersion and an alkali halide, in the 1st aggregation step, the sulfonated polyester is mixed with a salt of a divalent cation or an alkali halide and the mixture is heated.
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公开(公告)号：JP2000044660A
公开(公告)日：2000-02-15
申请号：JP20154499
申请日：1999-07-15
Applicant: XEROX CORP
Inventor： SACRIPANTE GUERINO G , FOUCHER DANIEL A , KITTELBERGER STEPHEN J , LI DONGMING , SABAN MARKO D , TOTH ALAN E J , BAYLEY ROBERT D
Abstract: PROBLEM TO BE SOLVED: To provide an economical multistage preparation of a polyester resin. SOLUTION: This method for preparing an unsaturated polyester comprises (1) reacting an organic diol with a cyclic alkylene carbonate in the presence of the first catalyst for generating a polyalkoxydiol, (2), if necessary, subsequently adding a supplement of the cyclic alkylene carbonate thereto in the presence of the second catalyst and (3) subjecting the obtained mixture to polycondensation with a dicarboxylic acid.
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公开(公告)号：JP2003057785A
公开(公告)日：2003-02-26
申请号：JP2002150672
申请日：2002-05-24
Applicant: Xerox Corp , ゼロックス・コーポレーション
Inventor： FOUCHER DANIEL A , PATEL RAJ D , CHOPRA NAVEEN , KAZMAIER PETER M , WOJTYK JAMES , BUNCEL ERWIN
CPC classification number: G03G9/0906 , G03G9/0912 , G03G9/0914
Abstract: PROBLEM TO BE SOLVED: To provide marking particles utilizing a photochromic material addressable by different wavelengths. SOLUTION: The marking particles comprise a first polymer, a second polymer, a chelating agent and a spiropyran material of formula (1) or (2) wherein (n) is an integer representing the number of repeat -CH2 - units and R is -H or -CH=CH2 . The marking particles comprise a core containing the first polymer in which are dispersed the chelating agent and the spiropyran and encapsulated within a shell of the second polymer formulated by an interfacial polymerization.
Abstract translation: 要解决的问题：提供使用可通过不同波长寻址的光致变色材料的标记颗粒。 解决方案：标记颗粒包含式（1）或（2）的第一聚合物，第二聚合物，螯合剂和螺吡喃材料，其中（n）是表示重复-CH 2 - 单元数的整数，R为 - H或-CH = CH 2。 标记颗粒包含含有第一聚合物的芯，其中分散有螯合剂和螺吡喃并包封在通过界面聚合配制的第二聚合物的壳内。
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公开(公告)号：JPH11265093A
公开(公告)日：1999-09-28
申请号：JP44999
申请日：1999-01-05
Applicant: XEROX CORP
Inventor： MYCHAJLOWSKIJ WALTER , FOUCHER DANIEL A , SACRIPANTE GUERINO G , PATEL RAJ D , ONG BENG S
IPC: C09D167/02 , G03G9/08 , G03G9/087
Abstract: PROBLEM TO BE SOLVED: To obtain a simple and economic method for directly manufacturing black and colored toner compositions having superior dispersibility of a colorant and narrow particle diameter distribution by mixing a latex-emulsified liquid and a colorant-dispersed liquid and a monocationic salt and specifying the ionic strength. SOLUTION: The toner is manufactured by mixing the latex-emulsified liquid and the colorant-dispersed liquid and a monocationic salt and cooling them, if necessary, and adjusting its ionic strength to about 0.001 - about 5 mol, and adding, preferably, a sodium sulfonated polyester resin having a particle diameter of a bout 5 - about 500 nm to the latex, and adding a monocationic salt solution to a mixture of the latex and the colorant and cooling it. The latex- emulsified liquid contains the polyester resin, such as poly(1,2-propylene-sodium 5-sulfoisophthalate), and the salt is sodium chloride, sodium bromide, potassium bromide, or potassium chloride.
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Patent Agency Ranking
公开(公告)号：JP2003029375A
公开(公告)日：2003-01-29
申请号：JP2002150673
申请日：2002-05-24
Applicant: Xerox Corp , ゼロックス・コーポレーション
Inventor： FOUCHER DANIEL A , PATEL RAJ D , CHOPRA NAVEEN , KAZMAIER PETER M
CPC classification number: G03G9/0914 , G03G9/0906 , G03G9/0916 , G03G9/0922 , Y10T428/25 , Y10T428/254 , Y10T428/2982 , Y10T428/2989
Abstract: PROBLEM TO BE SOLVED: To provide marking particles utilizing a photochromic material addressable by different wavelengths. SOLUTION: The marking particles contain a chelating agent and a spiropyran material of formula (1) or (2) and are prepared by an emulsion aggregation method.
Abstract translation: 要解决的问题：提供使用可通过不同波长寻址的光致变色材料的标记颗粒。 解决方案：标记颗粒含有式（1）或（2）的螯合剂和螺吡喃物质，并通过乳液聚集方法制备。
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公开(公告)号：JP2003020430A
公开(公告)日：2003-01-24
申请号：JP2002150720
申请日：2002-05-24
Applicant: Xerox Corp , ゼロックス・コーポレーション
Inventor： FOUCHER DANIEL A , PATEL RAJ D , CHOPRA NAVEEN , KAZMAIER PETER M , WOJTYK JAMES , BUNCEL ERWIN
CPC classification number: C09D11/50 , G02F2001/1678
Abstract: PROBLEM TO BE SOLVED: To obtain an electrophoretic ink with which two or more colors can be expressed and to provide an electrophoretic ink display. SOLUTION: The electrophoretic ink 22, 23, 24 and 25 comprises a suspending fluid and a plurality of particles comprising a mixture of a chelating agent and a spiropyran material of formula I or formula II (n is an integer representing the number of repeating unit -CH2 -; R is H or CH=CH2 ) suspended in the suspending fluid. The particles are free to migrate within the suspending fluid under the influence of an electric field.
Abstract translation: 要解决的问题：获得可以表达两种或更多种颜色的电泳墨水，并提供电泳墨水显示器。 解决方案：电泳墨水22,23,24和25包括悬浮液和多个包含螯合剂和式I或式II的螺吡喃物质的混合物的颗粒（n是表示重复单元数目的整数） CH2 - ; R是H或CH = CH2）。 颗粒在电场的影响下在悬浮液中自由迁移。
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公开(公告)号：JPH11258851A
公开(公告)日：1999-09-24
申请号：JP46599
申请日：1999-01-05
Applicant: XEROX CORP
Inventor： PATEL RAJ D , MYCHAJLOWSKIJ WALTER , FOUCHER DANIEL A , SACRIPANTE GUERINO G , ONG BENG S
Abstract: PROBLEM TO BE SOLVED: To obtain a process of profitably preparing a toner useful in the formation of a high glossiness image in a high yield without using a surfactant. SOLUTION: An emulsion latex contg. an amine and a sulfonated polyester resin is mixed with a colorant dispersion and the mixture is heated and optionally cooled to prepare the objective toner. The polyester resin is, e.g. poly(1,2- propylene-sodium 5-sulfoisophthalate) or poly(neopentyl-sodium 5- sulfoisophthalate).
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公开(公告)号：JP2003075960A
公开(公告)日：2003-03-12
申请号：JP2002150719
申请日：2002-05-24
Applicant: Xerox Corp , ゼロックス・コーポレーション
Inventor： FOUCHER DANIEL A , PATEL RAJ D , CHOPRA NAVEEN , KAZMAIER PETER M , BUNCEL ERWIN , WOJTYK JAMES
IPC: G03C1/685 , C07D491/10 , C09K9/02 , G02B26/02 , G02F1/167
CPC classification number: G02B26/026 , C07D491/10
Abstract: PROBLEM TO BE SOLVED: To provide a display having such a photochromic property as to exhibit two or more colors. SOLUTION: The display comprises an arrangement of a plurality of optically anisotropic rotatable elements, each of the rotatable elements has a surface in contact with an enabling fluid, the rotatable elements are electrically dipolar in the presence of the enabling fluid and thus are subject to rotation upon application of an electric field, the rotatable elements are free to rotate in place but not free to translate substantially so as to disrupt the arrangement of rotatable elements, a first portion of the surface of each of the rotatable elements contains a chelating agent and a spiropyran material of formula (1) or (2), wherein (n) is an integer representing the number of repeat -CH2 - units and R is -H or -CH=CH2 , and a second portion of the surface contains substantially no spiropyran.
Abstract translation: 要解决的问题：提供具有这样的光致变色性能的显示器，以显示两种或更多种颜色。 解决方案：显示器包括多个光学各向异性可旋转元件的布置，每个可旋转元件具有与启用流体接触的表面，可旋转元件在有效流体存在的情况下是电偶极性的，因此被旋转 在施加电场时，可旋转元件自由旋转就位，但不能自由平移，从而破坏可旋转元件的布置，每个可旋转元件的表面的第一部分包含螯合剂和 式（1）或（2）的吡咯啉材料，其中（n）是表示重复-CH 2 - 单元数的整数，R是-H或-CH = CH 2，表面的第二部分基本上不含螺吡喃 。
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公开(公告)号：JPH11258854A
公开(公告)日：1999-09-24
申请号：JP673999
申请日：1999-01-13
Applicant: XEROX CORP
Inventor： MYCHAJLOWSKIJ WALTER , SACRIPANTE GUERINO G , FOUCHER DANIEL A , PATEL RAJ D , DRAPPEL STEPHAN V
Abstract: PROBLEM TO BE SOLVED: To obtain a process of preparing a toner having a small volume average particle diameter, a narrow particle size distribution and excellent glossiness. SOLUTION: The toner is prepd. through a step for heating a mixture of an emulsion latex, a colorant and an org. complexing agent in the absence of a surfactant. In a preferable way, the emulsion latex contains a sulfonated polyester resin and the resin particles contained in the emulsion latex and the colorant are aggregated and agglomerated by the heating of the org. complexing agent and then the formed toner is cooled and separated.
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