摘要:
The electrophotosensitive material in accordance with the present invention containing a layer which contains polycarbonate as a binding resin and of which glass transition temperature is not lower than 62°C. This layer is excellent in adhesion to the foundation. This layer may be a photosensitive layer containing a m-phenylenediamine compound as a charge transferring material, or a photosensitive layer containing a m-phenylenediamine compound and a perylene compound as a charge generating material. The present invention also provides a photosensitive layer of which the amount of residual tetrahydrofuran is adjusted to a predetermined value or less, thereby to prevent the photosensitive layer from being decreased in sensitivity due to ultraviolet rays or visible ray.
摘要:
The electrophotosensitive material in accordance with the present invention containing a layer which contains polycarbonate as a binding resin and of which glass transition temperature is not lower than 62°C. This layer is excellent in adhesion to the foundation. This layer may be a photosensitive layer containing a m-phenylenediamine compound as a charge transferring material, or a photosensitive layer containing a m-phenylenediamine compound and a perylene compound as a charge generating material. The present invention also provides a photosensitive layer of which the amount of residual tetrahydrofuran is adjusted to a predetermined value or less, thereby to prevent the photosensitive layer from being decreased in sensitivity due to ultraviolet rays or visible ray.
摘要:
An electrophotographic photosensitive element comprising a photosensitive layer and a surface protective layer on the photosensitive layer, the surface protective layer comprising a thermosetting silicone resin, and a methyl-butyl etherified melamine-formaldehyde resin in an amount of from 0.1 to 30 parts by weight per 100 parts by weight of the non-volatile solid components of the thermosetting silicone resin, an electrophotographic photosensitive element comprising a photosensitive layer and a surface protective layer on the photosensitive layer, the surface protective layer comprising a thermosetting silicone resin, and an acrylic copolymer having an average molecular weight of 6,000 or less in an amount of from 0.1 to 30 parts by weight per 100 parts by weight of the non-volatile solid components of the thermosetting silicone resin, and an electrophotographic photosensitive element comprising a photosensitive layer and a surface protective layer on the photosensitive layer, the surface protective layer containing a thermosetting silicone resin, a methyl etherified melamine-formaldehyde resin and/or a methyl-butyl mixed etherified melamine-formaldehyde resin in an amount of from 0.1 to 50 parts by weight per 100 parts by weight of the non-volatile solid components of the thermosetting silicone resin, and a thermoplastic resin in an amount of from 1 to 11 wt% to a total amount of the non-volatile solid components of the thermosetting silicone resin and the methyl etherified melamine-formaldehyde resin and/or the methyl-butyl mixed etherified melamine-formaldehyde resin.