US4366208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming photoconductive organic film
Assignee: Toshiba Corp
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Filing: 1980-10-22
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Granted: 1982-12-28
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Expires: 2000-10-22
Abstract
Abstract A process for forming a photoconductive organic film on a substrate by the plasma polymerization reaction of a mixture of an organic compound vapor and a carrier gas activated in a plasma producing region, comprises carrying out the plasma polymerization reaction in the presence of a halogen compound vapor.
Inventors
- 👤 Yoshimi Akai
- 👤 Masahiko Hirose
- 👤 Hideo Sanpei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:24
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/07; C; C08; C08F; C08F2/00; C08F2/46; C08F2/52; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31551; Y10T428/31645; Y10T428/31649; Y10T428/31855
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
106 words
A process for forming a photoconductive organic film on a substrate by the plasma polymerization reaction, comprising the steps of: activating a carrier gas in a microwave plasma producing region; introducing an organic compound vapor and a halogen compound vapor directly individually into a polymerization reaction region; and introducing said activated carrier gas into said polymerization reaction region, thereby carrying out the plasma polymerization reaction in a region separated from said microwave plasma introducing region in the presence of said halogen compound vapor to form on the substrate a photoconductive organic film having a photoconductivity in the near infrared region of from 0.8 to 3.0 μm.
Claim 2
Dependent Claim
106 words
A process for forming a photoconductive organic film on a substrate by the plasma polymerization reaction, comprising the steps of: activating a carrier gas in a microwave plasma producing region; introducing an organic compound vapor and a halogen compound vapor directly individually into a polymerization reaction region; and introducing said activated carrier gas into said polymerization reaction region, thereby carrying out the plasma polymerization reaction in a region separated from said microwave plasma introducing region in the presence of said halogen compound vapor to form on the substrate a photoconductive organic film having a photoconductivity in the near infrared region of from 0.8 to 3.0 μm.
Claim 3
Dependent Claim
27 words
An article of manufacture, comprising a substrate and a photoconductive organic film on the substrate, wherein said film is applied according to the process of claim 1.
Claim 4
Dependent Claim
37 words
A process as claimed in claim 1, in which the organic compound is selected from the group consisting of acetylene, ethylene, vinylidene fluoride, styrene, propylene, vinyl ether, vinyl alcohol, vinyl chloride, vinylidene chloride, vinyl acetylene and butene.
Claim 5
Dependent Claim
18 words
A process as claimed in claim 3, in which the organic compound is acetylene, ethylene or vinylidene fluoride.
Claim 6
Dependent Claim
62 words
A process as claimed in claim 1, in which the halogen compound is selected from the group consisting of methylene bromide, carbon tetrafluoride, carbon tetrachloride, ethyl chloride, ethylene chloride, ethyl bromide, ethylene bromide, vinyl bromide, methyl bromide, propylene bromide, allyl fluoride, ethyl fluoride, propyl fluoride, methyl fluoride, ethyl iodide, ethylene iodide, vinyl iodide, methyl iodide, methylene iodide, hydrogen bromide and hydrogen iodide.
Claim 7
Dependent Claim
18 words
A process as claimed in claim 5, in which the halogen compound is methylene bromide or carbon tetrafluoride.
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) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |