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1. (WO2019066186) CHARGING ROLLER FOR IMAGE FORMING
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Pub. No.: WO/2019/066186 International Application No.: PCT/KR2018/005884
Publication Date: 04.04.2019 International Filing Date: 24.05.2018
IPC:
G03G 15/02 (2006.01) ,H01B 1/12 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
15
Apparatus for electrographic processes using a charge pattern
02
for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1
Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
06
mainly consisting of other non-metallic substances
12
organic substances
Applicants:
HP PRINTING KOREA CO., LTD. [KR/KR]; 129, Samsung-ro, Yeongtong-gu Suwon-Si Gyeonggi-do 16677, KR
Inventors:
JI, Young Phil; KR
HARADA, Norihiro; KR
HEO, Ji Soo; KR
Agent:
KIM, Tae-Hun; KR
JEONG, Hong-Sik; KR
Priority Data:
10-2017-012808229.09.2017KR
Title (EN) CHARGING ROLLER FOR IMAGE FORMING
(FR) ROULEAU DE CHARGE POUR FORMATION D'IMAGE
Abstract:
(EN) A charging roller for an image forming apparatus is provided, which includes a shaft, an elastic layer disposed around the shaft, and a coating layer formed on the elastic layer, wherein the coating layer includes a urethane resin formed by crosslinking of a polyol mixture with polyisocyanate, and the polyol mixture includes polyester polyol and polyether polyol having 60% by weight or more and 90% by weight or less of an ethylene oxide content.
(FR) Cette invention concerne un rouleau de charge pour un appareil de formation d'image, comprenant un arbre, une couche élastique disposée autour de l'arbre, et une couche de revêtement formée sur la couche élastique, la couche de revêtement comprenant une résine d'uréthane formée par réticulation d'un mélange de polyols avec un poly-isocyanate, et le mélange de polyols comprenant un polyol de polyester et un polyol de polyéther ayant une teneur en oxyde d'éthylène de 60 % en poids ou plus et de 90 % en poids ou moins.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)