公开(公告)号：US09818947B2

公开(公告)日：2017-11-14

申请号：US14168422

申请日：2014-01-30

Applicant: S-PRINTING SOLUTION CO., LTD.

Inventor： Kwang-ho Kang ,  Jae-hyeuk Jeong ,  Jung-ik Choi

IPC: G03G15/16 ,  B05C1/08 ,  H01B1/12 ,  H01L51/00 ,  G03G15/02 ,  G03G15/08

CPC classification number: H01L51/004 ,  G03G15/0233 ,  G03G15/0818 ,  G03G15/1685 ,  H01L51/0043

Abstract: A semiconductive roller to stably generate high-quality images for a long period of time by efficiently inhibiting migration of free epichlorohydrin (ECH) component to a surface of the semiconductive roller includes an elastic layer formed of a semiconductive rubber composition including about 50 to about 70 parts by weight of a base rubber and about 30 to about 50 parts by weight of a hydrin rubber. An extracted amount of the ECH component from the elastic layer is about 2% by volume or less, wherein the extracted amount is determined based on a reduced amount of chlorine (Cl) intensity measured using X-ray fluorescence (XRF) analysis performed before and after extraction of the ECH component from the elastic layer using tetrahydrofuran (THF).