公开(公告)号：US5705221A

公开(公告)日：1998-01-06

申请号：US629818

申请日：1996-04-10

Applicant: William Edward Yoerger

Inventor： William Edward Yoerger

IPC: G03G9/113 ,  B05D7/00

CPC classification number: G03G9/1134 ,  G03G9/1133 ,  G03G9/1139

Abstract: A method of modifying the triboelectric charging propensity electrostatographic developer carrier particles, comprising the steps of: (A) providing a carrier particles that is uncoated or polymer coated; (B) mixing the carrier particles with either (i) an aqueous basic solution or (ii) an aqueous solution containing from 0.1 to 5.0 weight percent of a soluble acidic metal salt, based on the weight of the carrier particles to form a mixture; and (C) contacting the mixture with the solution, (i) or (ii), not used in step (B) thereby causing a precipitate of an insoluble salt to deposit on the carrier particles wherein the insoluble salt is (a) strontium carbonate; (b) insoluble metal hydroxides; (c) insoluble metal hydrated oxides; or (d) a mixture of two or more of (a), (b) and (c); provided that when a soluble strontium metal acid salt is used in step (B) (ii) and the carrier coating is other than a polyfluorocarbon, a reagent that provides a source of carbonate ions is also used in step (B).

Abstract translation: 一种修饰摩擦带电倾向性静电显影剂载体颗粒的方法，包括以下步骤：（A）提供未涂覆或聚合物涂覆的载体颗粒; （B）基于载体颗粒的重量，将载体颗粒与（i）碱性水溶液或（ii）含有0.1至5.0重量％的可溶性酸性金属盐的水溶液混合以形成混合物; 和（C）使混合物与步骤（B）中未使用的溶液（i）或（ii）接触，由此使不溶性盐沉淀物沉积在载体颗粒上，其中不溶性盐是（a）碳酸锶 ; （b）不溶性金属氢氧化物; （c）不溶性金属水合氧化物; 或（d）（a），（b）和（c）中的两种或多种的混合物; 条件是当在步骤（B）（ii）中使用可溶性锶金属酸盐并且载体涂层不是多氟碳化合物时，在步骤（B）中也使用提供碳酸根离子源的试剂。

公开(公告)号：US5709975A

公开(公告)日：1998-01-20

申请号：US685124

申请日：1996-07-23

Applicant: William Edward Yoerger ,  Wayne Thomas Ferrar

Inventor： William Edward Yoerger ,  Wayne Thomas Ferrar

IPC: G03G9/113

CPC classification number: G03G9/1136 ,  G03G9/1139

Abstract: This invention provides an electrophotographic carrier comprising hard ferrite particles, said particles having a coating comprising a silicone resin and a colloidal silica.

Abstract translation: 本发明提供一种包含硬质铁氧体颗粒的电子照相载体，所述颗粒具有包含有机硅树脂和胶体二氧化硅的涂层。

公开(公告)号：US5686217A

公开(公告)日：1997-11-11

申请号：US630143

申请日：1996-04-10

Applicant: William Edward Yoerger

Inventor： William Edward Yoerger

IPC: G03G9/113

CPC classification number: G03G9/1139 ,  G03G9/1134 ,  Y10T428/2993 ,  Y10T428/2998

Abstract: Carrier particles for use in negative electrostatographic developers wherein said particles bear, based on the weight of the carrier particles, from 0.1 to 2 weight percent of deposits selected from the group consisting of (a) strontium carbonate, (b) insoluble metal hydroxides, (c) an insoluble metal hydrated oxide, and (d) mixtures thereof; provided that when the said carrier particles bear a polymeric flurocarbon coating the deposit is other than strontium carbonate.

Abstract translation: 用于阴性静电显影剂的载体颗粒，其中所述颗粒基于载体颗粒的重量占0.1至2重量％的选自（a）碳酸锶，（b）不溶性金属氢氧化物，（ c）不溶性金属水合氧化物，和（d）它们的混合物; 条件是当所述载体颗粒承载聚合氟碳涂层时，沉积物不是碳酸锶。

公开(公告)号：US3958991A

公开(公告)日：1976-05-25

申请号：US495365

申请日：1974-08-07

Applicant: Jean Elmore Jones ,  William Edward Yoerger

Inventor： Jean Elmore Jones ,  William Edward Yoerger

IPC: G03G5/06 ,  G03G5/09

CPC classification number: G03G5/0637 ,  G03G5/067 ,  G03G5/09

Abstract: This invention relates to supersensitizing dye combinations useful for organic photoconductive compositions comprising: at least one cyanine, merocyanine, rhodacyanine or styryl spectral sensitizing dye which1. has an anodic polarographic half-wave potential less than +1.0 volts;2. has an anodic polarographic half-wave potential and a cathodic polarographic half-wave potential which, when added together, give a sum more negative than -0.10 volts; and3. desensitizes negative silver bromide emulsions, containing 99.35 mole percent bromide, less than 0.4 log E at radiation of 365 nm. when incorporated therein at a concentration of 0.2 millimole of dye per mole of silver halide; and at least one electron-accepting dye such as a pyrylium or thiapyrylium salt as the supersensitizer.

Abstract translation: 本发明涉及可用于有机光电导组合物的超敏化染料组合物，其包含：至少一种花青，部花青，多花青素或苯乙烯基光谱增感染料，其具有小于+1的阳离子极化低温波。