公开(公告)号：EP3137556A4

公开(公告)日：2017-05-17

申请号：EP14890533

申请日：2014-04-29

Applicant: HEWLETT-PACKARD DEV COMPANY L P

Inventor： GANAPATHIAPPAN SIVAPACKIA ,  NG HOU T ,  TEISHEV ALBERT

IPC: C09B67/08 ,  B22F1/00 ,  C09D11/037 ,  C09D11/106 ,  G03G9/08 ,  G03G9/16

CPC classification number: C09C1/644 ,  B22F1/0055 ,  B22F1/0062 ,  B22F1/0074 ,  C09D11/037 ,  C09D11/106 ,  G03G9/0902 ,  G03G9/122 ,  G03G9/125 ,  G03G9/131

Abstract: A coated silver colored colorant includes a silver colored pigment, and a primer polymer at least partially coating the silver colored pigment. The primer polymer has a glass transition temperature that is less than 40° C. A passivating polymer is attached to the primer polymer. The passivating polymer has a glass transition temperature that is greater than 40° C.

Abstract translation: 涂覆的银色着色剂包括银着色颜料和至少部分涂覆银着色颜料的底漆聚合物。 底漆聚合物具有小于40℃的玻璃化转变温度。钝化聚合物附着于底漆聚合物。 钝化聚合物具有大于40℃的玻璃化转变温度

公开(公告)号：EP3107971A4

公开(公告)日：2017-03-08

申请号：EP14882890

申请日：2014-02-20

Applicant: HEWLETT-PACKARD DEV COMPANY L P

Inventor： NG HOU T ,  TOM HOWARD S ,  TEISHEV ALBERT

IPC: C09D11/03 ,  C09D11/037 ,  G03G9/12 ,  G03G9/125 ,  G03G9/13 ,  G03G9/135

CPC classification number: G03G9/122 ,  C09D11/037 ,  G03G9/0804 ,  G03G9/125 ,  G03G9/132 ,  G03G9/135

Abstract: A method of manufacturing a liquid electrophotographic ink concentrate includes: milling a mixture comprising ink pigments and polyamine-based dispersants in the presence of milling media to produce nano-scale ink pigments having an average particle size of less than 100 nanometers; and attaching at least one nano-scale ink pigment near surfaces of a base resin particle to form a pigment-resin composition.

Abstract translation: 一种制造液体电子照相油墨浓缩物的方法包括：在研磨介质存在下研磨包含油墨颜料和聚胺基分散剂的混合物以制备平均粒径小于100纳米的纳米级油墨颜料; 和在基础树脂颗粒的表面附近附着至少一种纳米级油墨颜料以形成颜料 - 树脂组合物。

公开(公告)号：EP2670816A4

公开(公告)日：2017-06-28

申请号：EP11857511

申请日：2011-01-31

Applicant: HEWLETT-PACKARD DEV COMPANY L P

Inventor： RODITI STELLA STOLIN ,  COHEN HAIM ,  FILIP-GRANIT NETA ,  LIRAZ ROI ,  BODINGER EYAL ,  KLEIN MARC ,  KLEIN NAVA ,  BACHAR EYAL ,  SHAY SWISSA ,  TEISHEV ALBERT ,  GRINWALD YARON ,  ORLIK FERNANDA ,  MOR ILANIT

IPC: C09K11/00 ,  G03G7/00 ,  G03G9/00 ,  G03G9/12 ,  G03G9/125 ,  G03G9/13

CPC classification number: G03G9/16 ,  G03G9/12 ,  G03G9/125 ,  G03G9/132 ,  G03G15/10

Abstract: The present disclosure provides for a liquid electrophotographic (LEP) ink comprising a carrier fluid, a pigment, a high melt viscosity ethylene acrylic acid copolymer resin, and a high acid ethylene acrylic acid copolymer resin. The high acid ethylene acrylic acid copolymer resin can have an acid content of at least 15 wt % and a viscosity of at least 8,000 poise. Additionally, the LEP ink can have a total resin acidity of at least 15 wt % and a total resin melt viscosity of at least 20,000 poise.

Abstract translation: 本公开提供了包含载体流体，颜料，高熔体粘度乙烯丙烯酸共聚物树脂和高酸乙烯丙烯酸共聚物树脂的液体电子照相（LEP）油墨。 高酸乙烯丙烯酸共聚物树脂可以具有至少15wt％的酸含量和至少8,000泊的粘度。 另外，LEP油墨可具有至少15重量％的总树脂酸度和至少20,000泊的总树脂熔体粘度。

公开(公告)号：EP3137562A4

公开(公告)日：2017-04-19

申请号：EP14890805

申请日：2014-04-28

Applicant: HEWLETT-PACKARD DEV COMPANY L P

Inventor： ZHAO LIHUA ,  ZHAO YAN ,  CHUN DORIS ,  GANAPATHIAPPAN SIVAPACKIA ,  NG HOU T ,  TEISHEV ALBERT

IPC: C09D11/037 ,  B41M5/00 ,  G03G9/093 ,  G03G9/12

CPC classification number: G03G9/131 ,  C09D11/037 ,  G03G9/0804 ,  G03G9/122 ,  G03G9/125

Abstract: In an example of a method for making polymer-encapsulated metallic ink pigment particles, a layer of a transparent resin dispersion is disposed on a flexible substrate. The resin dispersion layer is substantially dried, and a base resin layer is formed. A slurry is disposed onto the base resin layer. The slurry includes metallic pigment particles and polymer particles dispersed in a non-aqueous carrier. The slurry is dried to form a metallic pigment-polymer sheet. Another layer of the transparent resin dispersion is disposed on the metallic pigment-polymer sheet and is dried. A coating resin layer is formed. The metallic pigment-polymer sheet and the base and coating transparent resin layers form a tri-layer film having the metallic pigment particles encapsulated between the base and coating transparent resin layers.

Abstract translation: 在制备聚合物包封的金属油墨颜料颗粒的方法的实例中，将一层透明树脂分散体设置在柔性基底上。 树脂分散层基本上被干燥，并形成基底树脂层。 浆料布置在基体树脂层上。 浆料包括分散在非水载体中的金属颜料颗粒和聚合物颗粒。 将浆料干燥以形成金属颜料 - 聚合物片材。 将另一层透明树脂分散体置于金属颜料 - 聚合物片上并干燥。 形成涂层树脂层。 金属颜料 - 聚合物片材和基材以及涂布透明树脂层形成三层膜，其中金属颜料粒子包封在基材之间并涂布透明树脂层。