JPS63234260A - Photoconductor - Google Patents
PhotoconductorInfo
- Publication number
- JPS63234260A JPS63234260A JP6834587A JP6834587A JPS63234260A JP S63234260 A JPS63234260 A JP S63234260A JP 6834587 A JP6834587 A JP 6834587A JP 6834587 A JP6834587 A JP 6834587A JP S63234260 A JPS63234260 A JP S63234260A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- carrier
- org
- base
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 11
- 239000002904 solvent Substances 0.000 abstract description 6
- 229920006267 polyester film Polymers 0.000 abstract description 5
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 abstract 1
- 108091008695 photoreceptors Proteins 0.000 description 18
- 206010034972 Photosensitivity reaction Diseases 0.000 description 8
- 230000036211 photosensitivity Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000007602 hot air drying Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- 229920000106 Liquid crystal polymer Polymers 0.000 description 2
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 101710200914 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase 1 Proteins 0.000 description 1
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229940058303 antinematodal benzimidazole derivative Drugs 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000003785 benzimidazolyl group Chemical class N1=C(NC2=C1C=CC=C2)* 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- JGOAZQAXRONCCI-SDNWHVSQSA-N n-[(e)-benzylideneamino]aniline Chemical class C=1C=CC=CC=1N\N=C\C1=CC=CC=C1 JGOAZQAXRONCCI-SDNWHVSQSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000004866 oxadiazoles Chemical class 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229960005265 selenium sulfide Drugs 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- -1 transparency Chemical class 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/05—Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
- G03G5/0528—Macromolecular bonding materials
- G03G5/0557—Macromolecular bonding materials obtained otherwise than by reactions only involving carbon-to-carbon unsatured bonds
- G03G5/056—Polyesters
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
- G03G5/07—Polymeric photoconductive materials
- G03G5/075—Polymeric photoconductive materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分骨〕
本発明は、電子写真感光体等の光導電体に係る0〔従来
の技術〕
従来、電子写真感光体等の光導電体材料として、酸化亜
鉛・セレン、もしくは、硫化カドミウム等の無機化合物
、及び、オキサジアゾール誘導体、ベンズイミダゾール
誘導体、7タロシ了二ン等の低分子有機光導電体、もし
くは、例えば、特公昭42−25230号公報、特公昭
42−18674号公報などにおいて開示された・す7
タレン環了ントラセン環のような多核芳香環を含む高分
子、あるいは、カルバゾール瑠に代表される複素環を含
む高分子等、数多く知られている。[Detailed Description of the Invention] [Industrial Application] The present invention relates to a photoconductor such as an electrophotographic photoreceptor. [Prior Art] Conventionally, as a photoconductor material such as an electrophotographic photoreceptor, Inorganic compounds such as zinc oxide, selenium, or cadmium sulfide, and low-molecular organic photoconductors such as oxadiazole derivatives, benzimidazole derivatives, and 7-talosyrinine, or, for example, Japanese Patent Publication No. 42-25230 , Su7 disclosed in Japanese Patent Publication No. 42-18674 etc.
Many polymers are known, including polymers containing polynuclear aromatic rings such as talen rings and intrathracene rings, and polymers containing heterocycles such as carbazole.
一方、無機光導電体材料は、光感度に関しては優れた特
性を示すものの、透明性、加工性が悪い、軽量化ができ
ない、人体に有害である等の問題点があり、近年では有
機光導電体材料が注目されるようになった〇
有機光導電体材料は、前述したように数多くの種類があ
ると同時に、有機化合物特有の性質、例えば、透明性、
加工性に優れる、又、軽量かつ無公害等の利点から実用
化が進んでいるが、光感度、もしくは、光、さらにはオ
ゾンに対する安定性の面で無機材料に劣っている。On the other hand, although inorganic photoconductor materials exhibit excellent properties regarding photosensitivity, they have problems such as poor transparency and processability, cannot be made lightweight, and are harmful to the human body. As mentioned above, there are many types of organic photoconductor materials, and at the same time, they have characteristics specific to organic compounds, such as transparency,
Although it is being put into practical use because of its excellent processability, light weight, and non-polluting properties, it is inferior to inorganic materials in terms of photosensitivity or stability against light and ozone.
このような状況の中で、有機合成技術の進歩により、有
機光導電材料の高光感度化、安定性の向上に対するアプ
ローチが進み・実用価値は飛躍的に高まったものの、有
機化合物特有の物理的特質は、未だ無機光導電体に及ば
ず、実用化の大きな障害となっている。例えば、高分子
有機光導電体材料は、分子間凝集力が大きく、結晶化に
供う相分離を起こしやすく、光透過性を悪くすると共に
、支持体に対する密着性を損い、さらには、固く脆弱で
ある等の問題点を有する。Under these circumstances, advances in organic synthesis technology have led to advances in approaches to increasing the photosensitivity and stability of organic photoconductive materials, and their practical value has increased dramatically. However, the physical characteristics unique to organic compounds However, it is still not as good as inorganic photoconductors, and is a major obstacle to practical application. For example, polymeric organic photoconductor materials have a large intermolecular cohesive force and are prone to phase separation during crystallization, which impairs light transmittance, impairs adhesion to the support, and makes them hard. It has problems such as being fragile.
低分子有機光導電体材料においては、感光層を形成する
方法上して、蒸着、あるいは樹脂中への分散、溶解等の
方法が用いられているか、蒸着の場合は、支持体との密
着性、生産性、コスト等に問題があり、分散、溶解の場
合は、支持体との密層性が、バインダー樹脂の性質で決
ってしまい、現在知られている樹脂では、支持体との密
着性、及び、表面の硬度は不充分であり、たとえ充分で
あっても、表面電位の低下、光感度の低下など、望まれ
る電子写真感光特性を損う効果を附随し・いずれの特性
すべてを満足する光導電体は未だ得られていない。For low-molecular organic photoconductor materials, methods such as vapor deposition, dispersion in resin, and dissolution are used to form the photosensitive layer, and in the case of vapor deposition, adhesion to the support is used. However, there are problems with productivity, cost, etc. In the case of dispersion and dissolution, the adhesiveness with the support is determined by the properties of the binder resin, and with currently known resins, the adhesion with the support is , and the surface hardness is insufficient, and even if it is sufficient, it will have accompanying effects that impair the desired electrophotographic sensitivity characteristics, such as a decrease in surface potential and a decrease in photosensitivity. A photoconductor that does this has not yet been obtained.
本発明は、上記問題点を解決するためのもので、その目
的とするところは、電子写真緒特性を低下させる事なく
、優れた加工性、生産性を有し、かつ、支持体との密着
性、及び、感光体の表面硬度を飛躍的に向上させた光導
電体を提供するところにある。The present invention is intended to solve the above-mentioned problems, and its purpose is to have excellent processability and productivity without deteriorating the electrophotographic characteristics, and to achieve close adhesion to the support. It is an object of the present invention to provide a photoconductor that has dramatically improved properties and surface hardness of a photoreceptor.
本発明の光導電体は・
1)光導電性物質を担持せしめる有機担体に、配向性を
付与し、
2)前記有機担体が高分子化合物であり、3)前記有機
担体の高分子化合物が液晶性を示す事を特徴としている
。The photoconductor of the present invention includes: 1) an organic carrier supporting a photoconductive substance is provided with orientation, 2) the organic carrier is a polymer compound, and 3) the polymer compound of the organic carrier is a liquid crystal. It is characterized by showing gender.
以下に、本発明を、実施例を挙げて詳細に説明するが、
本発明によって得られる効果は、実施例で述べた材料、
方法、電荷発生層、電荷移動層の数及び層の構成等によ
って限定されるものではなく、同様な分子骨格をもつ高
分子材料、又は、同様な分子配向を与えうる手段におい
ても・本発明と同等の効果が得られる・
実施例1
銅7タロシ了二ン(Sumitone (!7amin
eE1ueLBGN、住友化学)32、ポリエステル樹
脂(バイロン200.東洋紡)1t、液晶性高分子+c
o−/d)−coo−@−coocH,aa、○+yz
(W。Hereinafter, the present invention will be explained in detail by giving examples.
The effects obtained by the present invention include the materials described in the examples,
The invention is not limited by the method, the number of charge generation layers, charge transfer layers, layer configurations, etc., and the present invention can also be applied to polymeric materials having similar molecular skeletons or means capable of imparting similar molecular orientation. Similar effects can be obtained.Example 1 Sumitone (!7amin)
eE1ueLBGN, Sumitomo Chemical) 32, polyester resin (Vylon 200. Toyobo) 1t, liquid crystal polymer +c
o-/d)-coo-@-coocH, aa, ○+yz
(W.
J 1.Tackson、H,F、Kufues、、T
、Polym。J1. Tackson, H.F., Kufues, ,T.
, Polym.
Sci、、ChemyEd、、14’、2043 (1
976)(以下PLC−1と略記)12、ポリイソシア
ネート(日本ポリウレタン)12、メチルエチルケトン
、トルエン(=1/1)70fを混合し、ボールミルで
24時間分赦し、これをA液とするOポリカーボネート
(NOvAREx、玉受化成)11、PLO−11f、
ジフェニルヒドラゾン誘導体(C!TO−236,西南
香料産業)21を、テトラヒドロ7ラン(以下THFと
略記)10?に溶解し、これをB液とするO
T Tl−n−糸着層を宥するポリニステレフィルム(
ハイビーA10’0L−BKO2,東し)全支持体とし
て、この上にA液を塗工し、05テスラの磁場を印加し
ながら熱風乾燥し、次に・上記電荷発生層上にB液を塗
工し、同様に0.5テスラの磁場を印加しながら溶媒除
去を行い、厚さ20μmの電荷移動層を形成し電子写真
感光体1を得た。Sci, ChemyEd, 14', 2043 (1
976) (hereinafter abbreviated as PLC-1) 12, polyisocyanate (Nippon Polyurethane) 12, methyl ethyl ketone, and toluene (=1/1) 70f were mixed and milled in a ball mill for 24 hours, and this was used as liquid A to prepare O polycarbonate ( NOvAREx, Tamake Kasei) 11, PLO-11f,
Diphenylhydrazone derivative (C!TO-236, Seinan Kogyo Sangyo) 21 was mixed with tetrahydro7ran (hereinafter abbreviated as THF) 10? and use this as liquid B. O T Tl-n-Polynystere film to soften the yarn attachment layer (
Hybee A10'0L-BKO2, Toshi) As a whole support, apply liquid A on this, dry with hot air while applying a magnetic field of 05 Tesla, and then apply liquid B on the charge generation layer. Similarly, the solvent was removed while applying a magnetic field of 0.5 Tesla to form a charge transfer layer with a thickness of 20 μm, thereby obtaining an electrophotographic photoreceptor 1.
上記電子写真感光体1は、偏光顕rj&鏡下での観察に
より光学的異方性が認められ、担体高分子鎖が高度に配
向している事が確認できた口上配電子写真感光体1の光
感度は1第1表に示すごとく、120 Lux−mであ
り、かつ可撓性、密着性は良好であった。The above-mentioned electrophotographic photoreceptor 1 is an electrophotographic photoreceptor 1 with optical anisotropy observed under a polarizing microscope and a highly oriented carrier polymer chain. As shown in Table 1, the photosensitivity was 120 Lux-m, and the flexibility and adhesion were good.
実施例2
In20.蒸着層を有するポリエステルフィルム(ハイ
ビーム100I、−BKO2,東し)を支持体として、
この上に実施例1のA液を塗工し・05テスラの磁場を
印加しながら熱風乾燥して溶媒を除去し、厚さ1μmの
電荷発生層を形成した。Example 2 In20. Using a polyester film (High Beam 100I, -BKO2, East) having a vapor deposition layer as a support,
Solution A of Example 1 was applied thereon and dried with hot air while applying a magnetic field of 0.5 Tesla to remove the solvent, thereby forming a charge generation layer with a thickness of 1 μm.
次に・上記電荷発生層上に実施例10B液を塗工し、熱
風乾燥のみを行い、厚さ20μ慣の電荷移動層を形成し
、電子写真感光体2を得た。上記電子写真感光体2は、
偏光顕微鏡下での観察により光学異方性が認められ、担
体高分子鎖が配向している事が確認できた。上記電子写
真感光体2の光感度は第1表に示すごと<、82Lux
−(8)であり、かつ可撓性・密層性も良好であった。Next, Example 10B solution was coated on the charge generation layer, and only hot air drying was performed to form a charge transfer layer having a thickness of 20 μm, thereby obtaining an electrophotographic photoreceptor 2. The electrophotographic photoreceptor 2 is
Observation under a polarizing microscope revealed optical anisotropy, confirming that the carrier polymer chains were oriented. The photosensitivity of the electrophotographic photoreceptor 2 is as shown in Table 1 <, 82 Lux
-(8), and the flexibility and dense layer properties were also good.
実施例3
工n203ii層を有するポリエステルフィルム(ハイ
ビーム100L−BKO2、東し)を支持体として、こ
の上に実施例1のA液を塗工し、熱風乾燥して溶媒を除
去し、厚さ1μmの電荷発生層を形成した。Example 3 Using a polyester film (High Beam 100L-BKO2, Toshi) having a polyester film (High Beam 100L-BKO2, Toshi) having an engineering n203ii layer as a support, the solution A of Example 1 was applied onto it, and the solvent was removed by hot air drying to give a thickness of 1 μm. A charge generation layer was formed.
次に、上記電荷発生層上に実施例1のB液を塗工し、0
.5テスラの磁場を印加しなから熱風乾燥を行い、厚さ
20μ情の電荷移動層を形成し、電子写真感光体3を得
た。上記電子写真感光体3は、偏光顕微鏡下での観察に
より光学異方性が認められ、担体高分子鎖が配向してい
る事が確認でき・た。Next, the B solution of Example 1 was coated on the charge generation layer, and the
.. Hot air drying was performed without applying a magnetic field of 5 Tesla to form a charge transfer layer with a thickness of 20 μm, and an electrophotographic photoreceptor 3 was obtained. The electrophotographic photoreceptor 3 was observed to have optical anisotropy when observed under a polarizing microscope, and it was confirmed that the carrier polymer chains were oriented.
上記電子写真感光体3の光感度は第1表に示すごと(1
03Lux−(8)であり・かつ・可撓性は良好であっ
た。The photosensitivity of the electrophotographic photoreceptor 3 is as shown in Table 1 (1
03Lux-(8) and had good flexibility.
参考例
In203i層層を有するポリエステルフィルム(ハイ
ビーム100L−BKO2,東し)を支持体として、こ
の上に実施例1のA液を塗工し、熱風乾燥して溶媒を除
去し、厚さ1μ常の電荷発生層を形成した。Reference Example A polyester film having an In203i layer (High Beam 100L-BKO2, Toshi) was used as a support, and the solution A of Example 1 was coated on it, and the solvent was removed by hot air drying. A charge generation layer was formed.
次に、上記電荷発生層上に実施例1のB液を塗工し・熱
風乾燥を行い溶媒を除失し、厚さ20μmの電荷移動層
を形成し、電子写真感光体10を得た@上記電子写真感
光体10は、偏光顕微鏡下での観察では、光学的異方性
は認められず、担体高分子鎖が無配向状態である事がわ
かった。上記電子写真感光体10の光感度は第1表に示
すごと< 51 Lux−wであり、又、可撓性、密着
性も不充分であった。Next, the B solution of Example 1 was applied onto the charge generation layer and dried with hot air to remove the solvent, thereby forming a charge transfer layer with a thickness of 20 μm to obtain an electrophotographic photoreceptor 10. When the electrophotographic photoreceptor 10 was observed under a polarizing microscope, no optical anisotropy was observed, and it was found that the carrier polymer chains were in a non-oriented state. The photosensitivity of the electrophotographic photoreceptor 10 was <51 Lux-w as shown in Table 1, and the flexibility and adhesion were also insufficient.
第1表
〔発明の効果〕
以上述べた如く本発明の光導電体からなる電子写真感光
体1〜3は、担体に配向性がない光導電体からなる電子
写真感光体10に比較し、可撓性、密層性に優れ、かつ
、高感度である0
又、本発明においては、配向性の付与の方法は液晶高分
子に磁場を印加する事で達成したが、他の材料、及び、
他の方法を用いても(例えば、ナイロンの延伸)同様の
効果が得られる。Table 1 [Effects of the Invention] As described above, the electrophotographic photoreceptors 1 to 3 made of the photoconductor of the present invention have better performance compared to the electrophotographic photoreceptor 10 made of a photoconductor with no orientation on the carrier. In addition, in the present invention, the method of imparting orientation was achieved by applying a magnetic field to the liquid crystal polymer, but other materials and
Similar effects can be obtained using other methods (eg, stretching nylon).
第1図は、本発明の電子写真感光体の一例を示す図であ
る0
1・・・支持体
2・・・電荷発生層
5・・・電荷移動層
以 上FIG. 1 is a diagram showing an example of the electrophotographic photoreceptor of the present invention.
Claims (1)
機担体に配向性を付与した事を特徴とする光導電体。 2)前記有機担体が高分子化合物である事を特徴とする
特許請求の範囲第1項記載の光導電体。 3)前記有機担体の高分子化合物が、液晶性を示す事を
特徴とする特許請求の範囲第1項又は第2項記載の光導
電体。[Scope of Claims] 1) A photoconductor characterized in that an organic carrier supporting a photoconductive substance is imparted with orientation. 2) The photoconductor according to claim 1, wherein the organic carrier is a polymer compound. 3) The photoconductor according to claim 1 or 2, wherein the polymer compound of the organic carrier exhibits liquid crystallinity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6834587A JPS63234260A (en) | 1987-03-23 | 1987-03-23 | Photoconductor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6834587A JPS63234260A (en) | 1987-03-23 | 1987-03-23 | Photoconductor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63234260A true JPS63234260A (en) | 1988-09-29 |
Family
ID=13371152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6834587A Pending JPS63234260A (en) | 1987-03-23 | 1987-03-23 | Photoconductor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63234260A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232801A (en) * | 1991-12-23 | 1993-08-03 | Eastman Kodak Company | Hole-transport liquid crystalline polymeric compounds, electrophotographic elements comprising same, and electrophotographic process |
US5232802A (en) * | 1991-12-23 | 1993-08-03 | Eastman Kodak Company | Electron-transport liquid crystalline polymeric compounds, electrophotographic elements comprising same, and electrophotographic process |
JP2008233378A (en) * | 2007-03-19 | 2008-10-02 | Ricoh Co Ltd | Electrophotographic photoreceptor, method for manufacturing the same, image forming apparatus using the same and process cartridge for image forming apparatus |
-
1987
- 1987-03-23 JP JP6834587A patent/JPS63234260A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5232801A (en) * | 1991-12-23 | 1993-08-03 | Eastman Kodak Company | Hole-transport liquid crystalline polymeric compounds, electrophotographic elements comprising same, and electrophotographic process |
US5232802A (en) * | 1991-12-23 | 1993-08-03 | Eastman Kodak Company | Electron-transport liquid crystalline polymeric compounds, electrophotographic elements comprising same, and electrophotographic process |
JP2008233378A (en) * | 2007-03-19 | 2008-10-02 | Ricoh Co Ltd | Electrophotographic photoreceptor, method for manufacturing the same, image forming apparatus using the same and process cartridge for image forming apparatus |
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