公开(公告)号：US20160187799A1

公开(公告)日：2016-06-30

申请号：US14980074

申请日：2015-12-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Miyao HIROSHI ,  Hiromichi JIN

IPC: G03G9/097 ,  C07F7/02

CPC classification number: G03G9/09775

Abstract: An external additive for toner includes a particulate obtained from a silicone compound selected from a silane compound represented by Chemical Formula 1, Si(OR1)4, wherein each R1 is independently a C1 to C6 monovalent hydrocarbon group, a hydrolysis-condensation product of the silane compound, and a combination thereof, wherein the particulate has an average particle diameter ranging from about 50 nm to about 250 nm and a true density ranging from about 1.80 g/cm3 to about 2.00 g/cm3.

Abstract translation: 用于调色剂的外用添加剂包括由选自由化学式1表示的硅烷化合物，Si（OR 1）4）的硅氧烷化合物获得的颗粒，其中每个R 1独立地为C 1至C 6单价烃基，水解缩合产物 硅烷化合物及其组合，其中所述颗粒的平均粒径为约50nm至约250nm，真密度为约1.80g / cm 3至约2.00g / cm 3。

公开(公告)号：US20170227862A1

公开(公告)日：2017-08-10

申请号：US15427313

申请日：2017-02-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hiromichi JIN ,  Hiroshi MIYAO

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

CPC classification number: G03G9/08773 ,  G03G9/09725 ,  G03G9/09733

Abstract: An external additive for a toner includes: a particulate of a polymerization product of at least one silicon compound selected from a silane compound represented by Chemical Formula 1: Si(OR1)4 (wherein R1 is a C1 to C6 monovalent hydrocarbon group) and a hydrolysis-condensation product thereof. The particulate has the following properties: a number average particle diameter of about 50 nm to about 250 nm, a first specific surface area (a) measured by a gas adsorption method of about 13 m2/g to about 80 m2/g, and true density measured by a nominal volume expansion method of about 1.9 g/cm3 to about 2.1 g/cm3.

公开(公告)号：US20160223928A1

公开(公告)日：2016-08-04

申请号：US15009964

申请日：2016-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hiroshi MIYAO ,  Hiromichi JIN

IPC: G03G9/093

CPC classification number: G03G9/09342 ,  G03G9/09392

Abstract: A complex particle including a core particle and a shell particle, wherein the shell particle is disposed on the core particle, wherein the core particle includes an organic material or an inorganic material as a primary component and the shell particle includes the other of the organic material and the inorganic material as a primary component, wherein an average particle diameter of the core particle is greater than or equal to about 80 nanometers and less than or equal to about 300 nanometers, a coefficient of variation of an average particle diameter of the core particle is greater than or equal to about 2% and less than or equal to about 10%, an average particle diameter of the shell particle is greater than or equal to about 5 nanometers and less than or equal to about 30 nm, a ratio of the average particle diameter of the shell particle relative to the average particle diameter of the core particle is greater than or equal to about 0.016 and less than or equal to about 0.25, an average particle diameter of the complex particle is greater than or equal to about 90 nanometers and less than or equal to about 350 nanometers, a ratio of multipliers a volume resistance and a sheet resistance of the complex particle is greater than or equal to about 0.7 and less than or equal to about 1.4, wherein the ratio of multipliers is a ratio of β1/β2, wherein β1 is an exponent in an expression of the volume resistance according to the formula ρv=α1·10β1 and wherein β2 is an exponent in an expression of the sheet resistance according to the formula ρs=α2·10β2 and wherein a change of a number of shell particles present on the core particle before and after ultrasonic irradiation of a dispersion liquid of the complex particle including about 1 weight percent of the complex particle dispersed in water, is greater than or equal to about 0.5% and less than or equal to about 5%ρvρs.