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US 7,691,931 B2Granted
Organic-inorganic hybrid material and method of preparing the organic-inorganic hybrid material, and electrophotographic photoreceptor, process cartridge, image forming apparatus and image forming method using the organic-inorganic hybrid material
AssigneeRicoh Company, Ltd.
InventorsHongguo Li, Kazukiyo Nagai
Life of this patent
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Abstract
An organic-inorganic hybrid material, including a charge transportable organic polymer and a metal oxide.
Claims17
An organic-inorganic hybrid material, comprising:
- a charge transportable organic polymer;
- and
- a alkoxide group combined therewith;
- wherein the organic-inorganic hybrid material has the following formula (8):
- wherein R1 represents a hydrogen atom, an alkyl group or an aryl group;
- Ar1 represents an aryl group;
- Ar2 and Ar3 respectively represent an arylene group;
- R1represents an alkyl group having 1 to 12 carbon atoms;
- A represents an alkoxy group having 1 to 8 carbon atoms;
- M represents a metal element selected from the group consisting of Si, Ti, Zr, Fe, Cu, Sn, B, Al, Ge, Ce and Ta;
- R″ represents an alkylene group or an alkylidene group having 1 to 4, preferably from 2 to 4, carbon atoms;
- and m represents an integer of from 1 to 3;
- E represents —NH— or —O—;
- and L represents a polymer including a repeat unit shown by the case arc.
11 more elements
A polymer for hybrid material, comprising:
- a charge transportable organic polymer;
- and
- a metal alkoxide group combined therewith,
- wherein the polymer for hybrid material has the following formula (10):
- wherein Ar5, Ar6, Ar8 and Ar9 respectively represent an arylene group;
- Ar7 represents an aryl group;
- Z represents an arylene group or -Ar10-Za-Ar10- wherein Ar10 represents an arylene group;
- Za represents O, S or an alkylene group;
- R and R′ respectively represent a straight-chain or a branched-chain alkylene group;
- n represents 0 or 1;
- R1 represents an alkyl group having 1 to 12, preferably from 1 to 5, carbon atoms;
- A represents an alkoxy group having 1 to 8, preferably from 1 to 4, carbon atoms;
- M represents a metal element selected from the group consisting of Si, Ti, Zr, Fe, Cu, Sn, B, Al, Ge, Ce and Ta, preferably from the group consisting of Si, Ti and Zr;
- R″ represents an alkylene group or an alkylidene group having 1 to 4, preferably from 2 to 4, carbon atoms;
- and m represents an integer of from 1 to 3;
- E represents —NH— or —O—;
- and L represents a polymer including a repeat unit shown by the case arc.
14 more elements
A polymer for hybrid material, comprising:
- a charge transportable organic polymer;
- and
- a metal alkoxide group combined therewith, wherein the polymer for hybrid material has the following formula (11):
- wherein Ar5, Ar6, Ar8 and Ar9 respectively represent an arylene group;
- A7 represents an aryl group;
- Z represents an arylene group or -Ar10-Za-Ar10- wherein Ar10 represents an arylene group;
- Za represents O, S or an alkylene group;
- R and R′ respectively represent a straight-chain or a branched-chain alkylene group;
- n represents 0 or 1;
- R1 represents an alkyl group having 1 to 12, preferably from 1 to 5, carbon atoms;
- A represents an alkoxy group having 1 to 8, preferably from 1 to 4, carbon atoms;
- M represents a metal element selected from the group consisting of Si, Ti, Zr, Fe, Cu, Sn, B, Al, Ge, Ce and Ta, preferably from the group consisting of Si, Ti and Zr;
- R″ represents an alkylene group or an alkylidene group having 1 to 4, preferably from 2 to 4, carbon atoms;
- and m represents an integer of from 1 to 3;
- E represents —NH— or —O—;
- and L represents a polymer including a repeat unit shown by the case arc.
13 more elements
Dependencies are inferred from the claim text.