公开(公告)号：JPH11295935A

公开(公告)日：1999-10-29

申请号：JP5228599

申请日：1999-03-01

Applicant: XEROX CORP

Inventor： MAHABADI HADI K ,  ENNO E ARGUA ,  ENRIGHT THOMAS E ,  JOHN A CREATULA ,  MARIE L OTT ,  K DERRICK HENDERSON ,  PAUL J GAROIL

IPC: G03G9/107 ,  G03G9/113

Abstract: PROBLEM TO BE SOLVED: To obtain a carrier of which the desired triboelectrostatic charge characteristic and conductivity are respectively independent by incorporating a polymer into part of carrier pores and coating the surface of the carrier with the polymer. SOLUTION: The carrier contg. the porous hard magnetic cores contains the polymer or polymer mixture (A) in part of the core pores and have the coating of the polymer or the polymer mixture (B) on the carrier. For example, the polymers may be incorporated into about 70 to 100%, more preferably about 80 to 100% of the pores. The respectively polymers are preferably the same and the total content of the polymer (A) in the pores and the polymer (B) of the coating is about 0.5 to 10 wt.%, more preferably about 1 to 5 wt.% of the carrier. Further minutely, the amt. of the polymer (A) is about 40 to 95 wt.%, more preferably about 60 to 90 wt.% of the entire polymer. Further preferably, the amt. of the polymer (B) is about 5 to 60 wt.%, more preferably about 10 to 40 wt.% of the entire polymer.

公开(公告)号：JPH11295933A

公开(公告)日：1999-10-29

申请号：JP5228499

申请日：1999-03-01

Applicant: XEROX CORP

Inventor： MAHABADI HADI K ,  ENNO E ARGUA ,  ENRIGHT THOMAS E ,  JOHN A CREATULA ,  MARIE L OTT ,  K DERRICK HENDERSON ,  PAUL J GAROIL

IPC: G03G9/10 ,  G03G9/107 ,  G03G9/113

Abstract: PROBLEM TO BE SOLVED: To improve the mechanical properties of a carrier, to reduce the weight and impact thereof and to enable the regulation of a triboelectrostatic charge value by incorporating a polymer into part of core pores and coating the surface of the carrier with the polymer. SOLUTION: The polymer or polymer mixture (A) is included in part of the core pores by the carrier contg. the porous cores. The surface of the carrier is coated with the polymer or the polymer mixture (B) at need. Part of the core pores is, for example, about 70 to 100% of the pores, preferably about 80 to 100%. The respective polymers are preferably the same and the total content of the polymer (A) in the pores and the polymer (B) of the coating is about 0.5 to 10 wt.%, more preferably about 1 to 5 wt.% of the carrier. Further minutaly, the amt. of the polymer (A) in the pores is about 40 to 95 wt.%, more preferably about 60 to 90 wt.% of the entire polymer. Further preferably, the amt. of the polymer (B) is about 5 to 60 wt.%, more preferably about 10 to 40 wt.% of the entire polymer.