EP0372979A2
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Hole transporting material
Assignee: Eneos Corp
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Filing: 1989-12-08
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Granted: —
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Expires: 2009-12-08
Abstract
Abstract A hole transporting material is constituted by a compound represented by the following general formula (1): wherein R¹, R², R³, R⁴ and R⁵, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar¹ and Ar² are each independently a divalent hydrocarbon residue; ℓ is an integer of 0 or more; m is an integer of 1 or more; and n is an integer of 2 or more.
Inventors
- 👤 Yutaka Shikatani
- 👤 Naoki Kataoka
- 👤 Nobuyuki Kuroda
- 👤 Kazuo Matsuura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 14:37
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; C; C08; C08G; C08G73/00; C08G73/02; H01; H01B; H01B1/00; H01B1/06; H01B1/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
79 words
A hole transporting material is constituted by a compound represented by the following general formula (1): wherein R¹, R², R³, R⁴ and R⁵, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar¹ and Ar² are each independently a divalent hydrocarbon residue; ℓ is an integer of 0 or more; m is an integer of 1 or more; and n is an integer of 2 or more.
Claim 2
Dependent Claim
79 words
A hole transporting material is constituted by a compound represented by the following general formula (1): wherein R¹, R², R³, R⁴ and R⁵, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar¹ and Ar² are each independently a divalent hydrocarbon residue; ℓ is an integer of 0 or more; m is an integer of 1 or more; and n is an integer of 2 or more.
Claim 3
Dependent Claim
48 words
A hole transporting material as set forth in Claim 1, wherein R¹, R², R³, R⁴ and R⁵ are each independently hydrogen, alkyl, aryl, aralkyl, or a derivative thereof; AR¹ and Ar² are each independently a divalent group represented by the general formula: wherein R¹ is as defined above.
Claim 4
Dependent Claim
30 words
A hole transporting material as set forth in Claim 1 or Claim 2, wherein ℓ is 1 to 5, m is 1 to 30, and n is 5 to 500.
Claim 5
Dependent Claim
26 words
A hole transporting material as set forth in Claim 1 or Claim 2, wherein ℓ is 0, m is 1, and n is 30 to 1000.
Claim 6
Dependent Claim
19 words
A hole transporting material as set forth in Claim 1, which is in the form of a thin film.
Claim 7
Dependent Claim
61 words
A hole transporting material as set forth in Claim 1, wherein the compound represented by the general formula (1) is prepared by polycondensation of a compound represented by the following general formula (5) and a compound represented by the following general formula (6): R⁴COR⁵ (6) wherein R¹, R², R³, R⁴, R⁵, Ar¹, Ar², ℓ and m are as defined Claim 1.
Claim 8
Dependent Claim
77 words
A photoconductor constituted by a compound represented by the following general formula (1): wherein R¹, R², R³, R⁴ and R⁵, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar¹ and Ar² are each independently a divalent aromatic hydrocarbon residue; ℓ is an integer of 0 or more, m is an integer of 1 or more; and n is an integer of 2 or more.
Claim 9
Dependent Claim
77 words
A photoconductor constituted by a compound represented by the following general formula (1): wherein R¹, R², R³, R⁴ and R⁵, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar¹ and Ar² are each independently a divalent aromatic hydrocarbon residue; ℓ is an integer of 0 or more, m is an integer of 1 or more; and n is an integer of 2 or more.
Claim 10
Dependent Claim
83 words
A hole transporting material for an electroluminescent device, constituted by a compound represented by the following general formula (1): wherein R¹, R², R³, R⁴ and R⁵, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar¹ and Ar² are each independently a divalent aromatic hydrocarbon residue; ℓ is an integer of 0 or more; m is an integer of 1 or more: and n is an integer of 2 or more.
Claim 11
Dependent Claim
83 words
A hole transporting material for an electroluminescent device, constituted by a compound represented by the following general formula (1): wherein R¹, R², R³, R⁴ and R⁵, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar¹ and Ar² are each independently a divalent aromatic hydrocarbon residue; ℓ is an integer of 0 or more; m is an integer of 1 or more: and n is an integer of 2 or more.
References Cited (Backward Citations)
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