US4956239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly-1,2-azepine, method of producing a film of such a polymer on a substrate and a substrate provided with such a polymer
Assignee: US Philips Corp
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Filing: 1988-03-30
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Granted: 1990-09-11
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Expires: 2008-03-30
Abstract
Abstract Gas-phase photopolymerisation of phenylazides results in a new type of polymer, a poly-1,2-azepine. This polymer can be provided on a substrate according to a predetermined pattern by exposing it via a mask. After oxidation an electrically conductive polymer is obtained.
Inventors
- 👤 Egbert W. Meijer
- 👤 Franciscus C. B. M. Van Vroonhoven
- 👤 Jozef H. H. Nijhuis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:40
CPC Classifications
C; C07; C07D; C07D401/00; C07D401/02; C07D401/04; C08; C08G; C08G73/00; C08G73/06; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H05; H05K; H05K3/00; H05K3/10; H05K3/105; Y; Y10; Y10T; Y10T428/00; Y10T428/31504
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
72 words
A method of producing a polymer film or a substrate which method comprises bringing a surface of a substrate into contact with a vapor of a substituted phenylazide substituted with from 1 to 4 substituents selected from the group consisting of alkyl, alkoxy, aryl, halogen and an electron-acceptor group, exposing said thus-coated substrate to UV light thereby causing said phenylazide to polymerize to form a film, of a corresponding poly -1,2- azepine.
Claim 2
Independent Claim
72 words
A method of producing a polymer film or a substrate which method comprises bringing a surface of a substrate into contact with a vapor of a substituted phenylazide substituted with from 1 to 4 substituents selected from the group consisting of alkyl, alkoxy, aryl, halogen and an electron-acceptor group, exposing said thus-coated substrate to UV light thereby causing said phenylazide to polymerize to form a film, of a corresponding poly -1,2- azepine.
Claim 3
Dependent Claim
13 words
A method as claimed in claim 1, characterized in that 4-pentyloxyphenylazide is used.
Claim 4
Dependent Claim
38 words
A method as claimed in claim 1 characterized in that the polymer is provided on the substrate surface according to a pattern by means of a mask which is positioned between an ultraviolet light source and the substrate.
Claim 5
Dependent Claim
19 words
A method as claimed in claim 1, characterized in that the polymer is made electrically conductive by oxidizing it.
Claim 6
Dependent Claim
29 words
A method as claimed in claim 1, characterized in that the oxidation process is carried out using a substance selected from the group consisting of arsenic pentafluoride and iodine.
Claim 7
Dependent Claim
18 words
A substrate provided with a polymer which is obtained by using a method as claimed in claim 1.
Claim 8
Dependent Claim
36 words
A poly -1,2-azapine having a repeating unit of the formula ##STR5## wherein R is a substituent selected from the group consisting of alkyl, alkoxy, aryl, halogen and an electron-acceptor group and m is 1,2 or 3-.
Claim 9
Dependent Claim
36 words
A poly -1,2-azapine having a repeating unit of the formula ##STR5## wherein R is a substituent selected from the group consisting of alkyl, alkoxy, aryl, halogen and an electron-acceptor group and m is 1,2 or 3-.
Claim 10
Dependent Claim
5 words
Poly -4- pentyloxy -1,2- azapine.
Claim 11
Dependent Claim
5 words
Poly -4- pentyloxy -1,2- azapine.
Claim 12
Dependent Claim
15 words
A poly-1, 2-azapine having a repeating unit of the formula ##STR6## wherein R is pentyloxy.
Claim 13
Dependent Claim
15 words
A poly-1, 2-azapine having a repeating unit of the formula ##STR6## wherein R is pentyloxy.
References Cited (Backward Citations)
US3975331A
Cited
US4423182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-10 | 1994-03-12 | 1994-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-10 | 1998-03-12 | 1998-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-10 | 2002-03-12 | 2002-09-11 | $7700.00 | Window Closed / Lapsed |