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
  • G03G5/06—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
  • G03G5/0622—Heterocyclic compounds
  • G03G5/0624—Heterocyclic compounds containing one hetero ring
  • G03G5/0627—Heterocyclic compounds containing one hetero ring being five-membered
  • G03G5/0629—Heterocyclic compounds containing one hetero ring being five-membered containing one hetero atom
• • 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
  • G03G5/0622—Heterocyclic compounds
  • G03G5/0644—Heterocyclic compounds containing two or more hetero rings
  • G03G5/0661—Heterocyclic compounds containing two or more hetero rings in different ring systems, each system containing at least one hetero ring

Definitions

• R represents a hydrogen, a halogen atom, a lower alkyl --NO --OR or COOR group (R being a lower alkyl group); R represents H, OR CN or a phenyl group (R being H or a lower alkyl group); n is an integer having the value of l-4; X represents either a single bond or NH- group.
• R is a hydrogen, a halogen atom, a lower alkyl, -NO OR or COOR group (R being a lower alkyl group): R is H, --R CN or a phenyl group (R being H or a lower alkyl group): n is an'integer having" the value of 1-4; X is either a single bond or -NH.
• R, R R R n and X have the meanings given in general Formula I, R, is an alkyl, an alkenyl, an aryl, or an aralkyl group; and R is a divalent linking radical like:
• the lower alkyl group represents an alkyl group having 1-4 carbon atoms.
• the foregoing compounds have new structures entirely different from those of the conventionally known organic photoconductive materials for use in electrophotography.
• those in which X is -NH-- are synthesized by the reaction Z-methylene indoline derivatives with isocyanates (refer to 0, Mumm, Ber 72 2107 (1939)) and further those in which X is a single bond are synthesized by the reaction of 2-methylene indoline derivatives with chlorides of acids (refer to Piccinini; Gazg, chim, ital, 28 (i), 187 (1898)).
• resinous film forming binders usable in this case, there may be cited styrene-butadiene copolymer, polystyrene, chlorinated rubber, polyvinyl chloride, vinyl chloride/vinyl acetate copolymer, polyvinylidene chloride, nitrocellulose, polyvinyl acetate, polyvinyl acetal, polyvinyl ether, silicone resin, methacrylic resin, acrylic resin, phenol resin, alkyd resin, urea/ aldehyde. resin, etc.
• the plasticizers usable include chlorinated biphenyl, chlorinated paraffin, phosphate type plasticizers, and phthalate type plasticizers.
• sensitizers those which are known commonly are useful, including tetracyanoethylene, tetracyanodimethane, chloranil, naphthoquinone, anthraquinone, methylene blue, crystal violet, malachite green, etc.
• the sensitive layer is deposited to a, dry thickness of 2-20,u. on the electroconductive base.
• the organic photoconductive component accounts for more than-% by weight all of the film composition, theproduct is found to exhibit satisfactory properties from the electrophotographic point of view.
• EXAMPLE 1 One-half (0.5) g. of Compound No. 1 given in Table 1 and 20 cc. of 10% benzene solution of polystyrene were mixed homogeneously. The resultants solution was spread to a dry film thickness of 5p. on a base of aluminum plate to obtain a sensitive layer. After drying of the solvent, the sensitive layer was positively charged in a dark place. With a film containing a positive image placed thereon, the sensitive layer was exposed through the film to a highvoltage mercury bulb (made by Toshiba, SHL-lOO) placed at a distance of 30 cm. above for about '8 seconds.
• a highvoltage mercury bulb made by Toshiba, SHL-lOO
• EXAMPLE 5 styrene; The final-solution 'was spread to a dry film thickness of 5 1. on an aluminum plate to form a sensitive layer. After drying of the solvent, the said sensitive layer was charged positively in a dark place. With a positive image film placed on top thereof, the sensitive layer was exposed through the film to a high-voltage mercury bulb placed at a distance of 30 cm. above for a second. Through the steps of developing and fixing, there was obtained a clear positive image.
• R is a hydrogen, a halogen atom, a lower alkyl, -N0 -OR or -COOR group (R being a lower alkyl group); R is H, -OR -CN or a phenyl group (R being H or a lower alkyl group); n is an integer having the value of 1-4; X is either a single bond or -NH--; R is an alkyl, an alkenyl, an aryl, or an aralkyl group;
• R is a divalent linking radical selected from the 6.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Photoreceptors In Electrophotography (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Indole Compounds (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=13246502

Family Applications (1)

Country Status (7)

Cited By (7)

Families Citing this family (4)

• 0
  • BE BE754699D patent/BE754699A/xx unknown
• 1969
  • 1969-08-13 JP JP44064037A patent/JPS4832381B1/ja active Pending
• 1970
  • 1970-08-07 FR FR7029185A patent/FR2056709A5/fr not_active Expired
  • 1970-08-12 DE DE2040152A patent/DE2040152B2/de active Granted
  • 1970-08-12 GB GB38932/70A patent/GB1272720A/en not_active Expired
  • 1970-08-12 CA CA090530A patent/CA925087A/en not_active Expired
  • 1970-08-13 US US00063619A patent/US3730711A/en not_active Expired - Lifetime

Also Published As

Similar Documents