US3943108A
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Photoconductive composition of an aldehyde condensate
Assignee: Xerox Corp
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Filing: 1974-09-27
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Granted: 1976-03-09
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Expires: 1994-09-27
Abstract
Abstract Polymeric photoconductive composition having recurring structural units of the formula: ##EQU1## WHEREIN R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; B is phenylene or a diradical of a fused aromatic nucleus having up to four benzene rings; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole, their respective homologues and analogues; x is 0 or 1; y is 0 or 1; and n is at least 2. The above polymeric compositions are suitable for use as charge transport matrices for photogenerator materials or can themselves be complexed with an appropriate activator and thus, form a charge transfer complex which is itself capable of photoresponse within the visible region of the electromagnetic spectrum.
Inventors
- 👤 Leon A. Teuscher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:50
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/07; G03G5/075; G03G5/076; C; C07; C07D; C07D455/00; C07D455/03; C07D455/04; C08; C08F; C08F8/00; C08F8/10; C08F8/48; C08J; C08J5/00; C08J5/18
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
86 words
A polymeric composition having recurring structural units of the formula ##EQU4## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; B is phenylene or a diradical of a fused aromatic nucleus having up to four benzene rings; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; y is 0 or 1; and n is at least 2.
Claim 2
Dependent Claim
86 words
A polymeric composition having recurring structural units of the formula ##EQU4## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; B is phenylene or a diradical of a fused aromatic nucleus having up to four benzene rings; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; y is 0 or 1; and n is at least 2.
Claim 3
Dependent Claim
96 words
A polymeric composition comprising a block copolymer having nonphotoconductive segments and photoconductive segments having recurring structural units of the formula: ##EQU5## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; B is phenylene or a diradical of a fused aromatic nucleus having up to four benzene rings; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; y is 0 or 1; and n is at least 2.
Claim 4
Dependent Claim
96 words
A polymeric composition comprising a block copolymer having nonphotoconductive segments and photoconductive segments having recurring structural units of the formula: ##EQU5## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; B is phenylene or a diradical of a fused aromatic nucleus having up to four benzene rings; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; y is 0 or 1; and n is at least 2.
Claim 5
Dependent Claim
98 words
A polymeric composition comprising a preformed nonphotoconductive polymer backbone and polymeric grafts appended therefrom which have recurring structural units of the formula: ##EQU6## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; B is phenylene or a diradical of a fused aromatic nucleus having up to four benzene rings; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; y is 0 or 1; and n is at least 2.
Claim 6
Dependent Claim
98 words
A polymeric composition comprising a preformed nonphotoconductive polymer backbone and polymeric grafts appended therefrom which have recurring structural units of the formula: ##EQU6## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; B is phenylene or a diradical of a fused aromatic nucleus having up to four benzene rings; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; y is 0 or 1; and n is at least 2.
Claim 7
Dependent Claim
64 words
A polymeric composition having recurring structural units of the formula: ##SPC1## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 8
Dependent Claim
64 words
A polymeric composition having recurring structural units of the formula: ##SPC1## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 9
Dependent Claim
74 words
A polymeric composition comprising a block copolymer having nonphotoconductive segments and photoconductive segments having recurring structural units of the formula: ##SPC2## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 10
Dependent Claim
74 words
A polymeric composition comprising a block copolymer having nonphotoconductive segments and photoconductive segments having recurring structural units of the formula: ##SPC2## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 11
Dependent Claim
76 words
A polymeric composition comprising a preformed nonphotoconductive polymer backbone and polymeric graft appended therefrom which have recurring structural units of the formula: ##SPC3## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 12
Dependent Claim
76 words
A polymeric composition comprising a preformed nonphotoconductive polymer backbone and polymeric graft appended therefrom which have recurring structural units of the formula: ##SPC3## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 13
Dependent Claim
64 words
A polymeric composition having recurring structural units of the formula: ##SPC4## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 14
Dependent Claim
64 words
A polymeric composition having recurring structural units of the formula: ##SPC4## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 15
Dependent Claim
74 words
A polymeric composition comprising a block copolymer having nonphotoconductive segments and photoconductive segments having recurring structural units of the formula: ##SPC5## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 16
Dependent Claim
74 words
A polymeric composition comprising a block copolymer having nonphotoconductive segments and photoconductive segments having recurring structural units of the formula: ##SPC5## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 17
Dependent Claim
76 words
A polymeric composition comprising a preformed nonphotoconductive polymer backbone and polymeric graft appended therefrom which have recurring structural units of the formula: ##SPC6## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
Claim 18
Dependent Claim
76 words
A polymeric composition comprising a preformed nonphotoconductive polymer backbone and polymeric graft appended therefrom which have recurring structural units of the formula: ##SPC6## wherein R is hydrogen or alkyl of 1-4 carbon atoms; R' is alkyl of 1-4 carbon atoms, cycloalkyl, phenyl, or alkyl substituted phenyl; A r is selected from the group consisting of naphthalene, anthracene, pyrene, perylene, julolidine, carbazole and their respective homologues; x is 0 or 1; and n is at least 2.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |