Roll member, charging unit, process cartridge and image forming apparatus
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G03G-015/02
B25F-005/02
C08L-023/10
C08L-021/00
C08L-023/28
출원번호
US-0232332
(2011-09-14)
등록번호
US-9102822
(2015-08-11)
우선권정보
JP-2011-068563 (2011-03-25)
발명자
/ 주소
Tomari, Shogo
Rokutan, Minoru
출원인 / 주소
FUJI XEROX CO., LTD.
대리인 / 주소
Oliff PLC
인용정보
피인용 횟수 :
1인용 특허 :
6
초록
Disclosed is a roll member including a core, and an elastic layer arranged on the core, the elastic layer containing a rubber material and polyalphaolefin.
대표청구항▼
1. A roll member comprising: a core, andan elastic layer arranged on the core, the elastic layer comprising a rubber material having a halogen group and a polyalphaolefin,wherein the polyalphaolefin is a copolymer of propylene and ethylene or a polymer including butene,wherein the elastic layer furt
1. A roll member comprising: a core, andan elastic layer arranged on the core, the elastic layer comprising a rubber material having a halogen group and a polyalphaolefin,wherein the polyalphaolefin is a copolymer of propylene and ethylene or a polymer including butene,wherein the elastic layer further comprises calcium carbonate having a BET specific surface area of from about 11 m2/g to about 70 m2/g, in addition to carbon black,wherein the calcium carbonate is from 20 parts by weight to 100 parts by weight, based on 100 parts by weight of the rubber material,wherein the elastic layer further comprises at least one selected from the group consisting of quinoxaline and triazine compounds,wherein the triazine compounds include at least one selected from the group consisting of 2,4,6-trimercapto-1,3,5-triazine, 1-methoxy-3,5-dimercapto triazine, 1-hexyl amino-3,5-dimercapto triazine, 1-diethyl amino-3,5-dimercapto triazine, 1-cyclohexyl amino-3,5-dimercapto triazine, 1-dibutyl amino-3,5-dimercapto triazine, 2-anilino-4,6-dimercapto triazine, and 1-phenyl amino-3,5-dimercapto triazine, andwherein the calcium carbonate has been surface treated with at least one of a fatty acid, a metal salt of a fatty acid, an alkaline earth metal salt of a fatty acid, or an ester. 2. The roll member according to claim 1, wherein the content of the polyalphaolefin is from about 1 part by weight to about 40 parts by weight, based on 100 parts by weight of the rubber material. 3. The roll member according to claim 1, wherein the content of the polyalphaolefin is from about 3 parts by weight to about 30 parts by weight, based on 100 parts by weight of the rubber material. 4. The roll member according to claim 1, wherein the content of the polyalphaolefin is from about 5 parts by weight to about 20 parts by weight, based on 100 parts by weight of the rubber material. 5. The roll member according to claim 1, wherein the elastic layer further comprises carbon black having a DBP oil absorption amount of from about 42 ml/100 g to about 175 ml/100 g. 6. The roll member according to claim 1, wherein the elastic layer further comprises carbon black having a DBP oil absorption amount of from about 60 ml/100 g to about 150 ml/100 g. 7. The roll member according to claim 1, wherein the elastic layer further comprises carbon black having a DBP oil absorption amount of from about 85 ml/100 g to about 130 ml/100 g. 8. The roll member according to claim 1, wherein the rubber material is a rubber material having a halogen group. 9. The roll member according to claim 1, wherein the elastic layer further comprises at least one selected from organic peroxides. 10. A charging unit comprising the roll member according to claim 1. 11. A process cartridge detachable from an image forming apparatus, comprising: an image holding member; andthe charging unit according to claim 10, that charges the image holding member. 12. An image forming apparatus, comprising: an image holding member;the charging unit according to claim 10, that charges the image holding member;a latent image forming unit that forms an electrostatic latent image on the image holding member charged by the charging unit;a developing unit that develops the electrostatic latent image formed on the image holding member using a developer comprising a toner; anda transfer unit that transfers the toner image formed on the image holding member to a recording medium. 13. The roll member according to claim 1, wherein the calcium carbonate is from 30 parts by weight to 80 parts by weight, based on 100 parts by weight of the rubber material. 14. The roll member according to claim 1, wherein the calcium carbonate is from 40 parts by weight to 60 parts by weight, based on 100 parts by weight of the rubber material.
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이 특허에 인용된 특허 (6)
Christoph Nover DE; Helmut Dillenburg DE, Bimolecular coated calcium carbonate and process of production thereof.
Hirai Yoshihiro (Ibaraki-ken JPX) Yamashita Takashi (Nagareyama JPX) Takenaka Masaaki (Kashiwa JPX), Contact charging member, process for producing same and electrophotographic apparatus using same.
Saito, Shinichiro; Murofushi, Toshiaki; Koga, Kazunari, Method for regenerating charging member, charging member and device for regenerating charging member.
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