Back to results
US 5,294,510 AGranted
Photosensitive member containing specific coumarin fluorescent bleaching agent
AssigneeMinolta Camera Kabushiki Kaisha
InventorsHideaki Ueda, Shigeaki Tokutake, Kimiyuki Ito, Yuki Shimada
Life of this patent
Estimating the term…
Abstract
A photosensitive member is disclosed, which comprises a photosensitive layer containing a fluorescent bleaching agent comprising a coumarin compound represented by the formula (I): ##STR1##
Claims5
A photosensitive member comprising a photosensitive layer which comprises a charge generating layer and a charge transporting layer, the charge transporting layer comprising
- a binder resin,
- a charge transporting material of 0.01-2 parts by weight on the basis of the binder resin of 1 part by weight, and
- a coumarin compound of 0.1-40 percent by weight on the basis of the charge transporting material and represented by the formula (I) below:
- ##STR19## in which R.sub.1 is ##STR20## R.sub.2 is a hydrogen atom or a fluoroalkyl group;
- and R.sub.3 is a hydrogen atom, an alkyl group or an aryl group.
2 more elements
A photosensitive member comprising a photosensitive layer which comprises a charge generating layer and a charge transporting layer, the charge generating layer comprising
- a binder resin,
- a charge generating material, and
- a coumarin compound of 0.01-3 parts by weight on the basis of the charge generating material of 1 part by weight and represented by the formula (I) below:
- ##STR22## in which R.sub.1 is ##STR23## ;
- R.sub.2 is a hydrogen atom or a p7 fluoroalkyl group;
- and R.sub.3 is a hydrogen atom, an alkyl group or an aryl group.
3 more elements
Dependencies are inferred from the claim text.