US3971742A
Expired / Lapsed
US
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Organo-chalcogen compositions
Assignee: Xerox Corp
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Filing: 1973-12-13
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Granted: 1976-07-27
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Expires: 1993-12-13
Abstract
Abstract Photoconductive composition comprising an organo-chalcogen polymer of the formula:
Inventors
- 👤 Wolfgang H. H. Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:43
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/005; C; C07; C07D; C07D345/00; C08; C08G; C08G79/00; C08G79/14; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/062
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
132 words
A method for controlling the photoresponsiveness of tellurium comprising fusion of intimate mixture of tellurium with at least one compound of the formula: ##EQU2## wherein R is selected from divalent hydrocarbylene radicals of from 5 to 50 carbon atoms, divalent heterocyclic, alicyclic and aromatic radicals having from 3 to 50 carbon atoms; n is a positive integer; and x is the radical --Se--R--Se--; or linear polymers comprising recurring units represented by the formula: Se -- A -- Se I wherein A is selected from the group consisting of divalent alkylene radicals having from 9 to 20 carbon atoms, divalent aromatic radicals having from 6 to 50 carbon atoms and divalent heterocyclic radicals, the relative weight ratio of tellurium to cyclic diselenide in the intimate mixture ranging from about 1:1 to about 12:1.
Claim 2
Independent Claim
132 words
A method for controlling the photoresponsiveness of tellurium comprising fusion of intimate mixture of tellurium with at least one compound of the formula: ##EQU2## wherein R is selected from divalent hydrocarbylene radicals of from 5 to 50 carbon atoms, divalent heterocyclic, alicyclic and aromatic radicals having from 3 to 50 carbon atoms; n is a positive integer; and x is the radical --Se--R--Se--; or linear polymers comprising recurring units represented by the formula: Se -- A -- Se I wherein A is selected from the group consisting of divalent alkylene radicals having from 9 to 20 carbon atoms, divalent aromatic radicals having from 6 to 50 carbon atoms and divalent heterocyclic radicals, the relative weight ratio of tellurium to cyclic diselenide in the intimate mixture ranging from about 1:1 to about 12:1.
Claim 3
Independent Claim
81 words
A method for controlling the photoresponsiveness of tellurium comprising fusion of an intimate mixture of tellurium with at least one compound of the formula: B -- Se.sub.a b wherein B is selected from the group consisting of divalent hydrocarbylene radicals and divalent heterocyclic radicals, a is a positive integer of at least 3 and b is a positive integer greater than 1. the relative weight ratio of tellurium to polyselenide in the intimate mixture ranging from about 1:1 to about 12:1.
Claim 4
Independent Claim
81 words
A method for controlling the photoresponsiveness of tellurium comprising fusion of an intimate mixture of tellurium with at least one compound of the formula: B -- Se.sub.a b wherein B is selected from the group consisting of divalent hydrocarbylene radicals and divalent heterocyclic radicals, a is a positive integer of at least 3 and b is a positive integer greater than 1. the relative weight ratio of tellurium to polyselenide in the intimate mixture ranging from about 1:1 to about 12:1.
Claim 5
Independent Claim
167 words
A method for controlling the photoresponsiveness of compounds ##EQU3## wherein R is selected from divalent hydrocarbylene radicals of from 5 to 50 carbon atoms, divalent heterocyclic, alicyclic and aromatic radicals having from 3 to 50 carbon atoms; n is a positive integer; and X is the radical --Se--R--Se--; or linear polymers comprising recurring units represented by the formula: Se -- A -- Se wherein A is selected from the group consisting of divalent alkylene radicals having at from 9 to 20 carbon atoms, divalent aromatic radicals having from 6 to 50 carbon atoms and divalent heterocyclic radicals or B -- Se.sub.a b wherein B is selected from the group consisting of divalent hydrocarbylene radicals and divalent heterocyclic radicals, a is a positive integer of at least 3 and b is a positive integer greater than 1 comprising fusing an intimate mixture of said compounds and tellurium, the relative weight ratio of tellurium to the above compounds in said intimate mixture ranging from about 1:1 to about 12:1.
Claim 6
Independent Claim
167 words
A method for controlling the photoresponsiveness of compounds ##EQU3## wherein R is selected from divalent hydrocarbylene radicals of from 5 to 50 carbon atoms, divalent heterocyclic, alicyclic and aromatic radicals having from 3 to 50 carbon atoms; n is a positive integer; and X is the radical --Se--R--Se--; or linear polymers comprising recurring units represented by the formula: Se -- A -- Se wherein A is selected from the group consisting of divalent alkylene radicals having at from 9 to 20 carbon atoms, divalent aromatic radicals having from 6 to 50 carbon atoms and divalent heterocyclic radicals or B -- Se.sub.a b wherein B is selected from the group consisting of divalent hydrocarbylene radicals and divalent heterocyclic radicals, a is a positive integer of at least 3 and b is a positive integer greater than 1 comprising fusing an intimate mixture of said compounds and tellurium, the relative weight ratio of tellurium to the above compounds in said intimate mixture ranging from about 1:1 to about 12:1.
References Cited (Backward Citations)
US2500164A
Cited
US3671467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |