US4082556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive polymeric compounds
Assignee: US Philips Corp
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Filing: 1976-03-09
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Granted: 1978-04-04
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Expires: 1996-03-09
Abstract
Abstract Light sensitive cyanuric azide polycondensates find use in production of positive and negative photographic relief images.
Inventors
- 👤 Donald Noel Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:31
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/38; C08G65/40; C08G65/4006; C08G65/4012; C08G65/4031; C08G65/4037; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/0644; G; G03; G03F; G03F7/00; G03F7/004; G03F7/008; G03F7/012
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
A light sensitive composition comprising a mixture of a light sensitive polymeric compound of the formula ##STR5## in which formula n is a whole number from 2 to 120 and R represents phenylene - 1, 3 phenylene - 1, 4 1-phenylcarbonyl-phenylene - 2,4 1-phenylcarbonyl-phenylene - 2,6 2,2' - diphenylcarbonyl 2,3' - diphenylcarbonyl or an 1-alkylcarbonyl-phenylene - 2,5 1-alkylcarbonyl-phenylene - 2,4 or 1-alkylcarbonyl-phenylene -2,6 in which the alkyl group contains from 1 to 4 carbon atoms, naphthylene - 2,7 naphthylene - 2,6 or naphthylene - 2,4 - group wherein the phenyl groups, if desired, are substituted with one or two alkyl groups containing from 1 to 4 carbon atoms or a phenyl group and an inert organic liquid carrier therefor.
Claim 2
Dependent Claim
119 words
A light sensitive composition comprising a mixture of a light sensitive polymeric compound of the formula ##STR5## in which formula n is a whole number from 2 to 120 and R represents phenylene - 1, 3 phenylene - 1, 4 1-phenylcarbonyl-phenylene - 2,4 1-phenylcarbonyl-phenylene - 2,6 2,2' - diphenylcarbonyl 2,3' - diphenylcarbonyl or an 1-alkylcarbonyl-phenylene - 2,5 1-alkylcarbonyl-phenylene - 2,4 or 1-alkylcarbonyl-phenylene -2,6 in which the alkyl group contains from 1 to 4 carbon atoms, naphthylene - 2,7 naphthylene - 2,6 or naphthylene - 2,4 - group wherein the phenyl groups, if desired, are substituted with one or two alkyl groups containing from 1 to 4 carbon atoms or a phenyl group and an inert organic liquid carrier therefor.
Claim 3
Dependent Claim
17 words
The light sensitive composition of claim 1 wherein the polymeric compound is dissolved in the liquid carrier.
Claim 4
Dependent Claim
11 words
A substrate coated with the light sensitive composition of claim 1.
Claim 5
Dependent Claim
12 words
The light sensitive composition of claim 1 wherein R represents 2,2'-diphenyl carbonyl.
Claim 6
Dependent Claim
11 words
The light sensitive composition of claim 1 wherein R represents naphthylene-2,7.
Claim 7
Dependent Claim
13 words
The light sensitive composition of claim 1 wherein R represents 1, benzoyl phenylene-2,4.
Claim 8
Dependent Claim
12 words
The light sensitive composition of claim 1 wherein R represents 1-acetyl phenylene-2,4.
Claim 9
Dependent Claim
11 words
The light sensitive composition of claim 1 wherein R represents phenylene-1,3.
Claim 10
Dependent Claim
15 words
A light sensitive composition of claim 1 wherein in addition a light-sensitizing agent is present.
Claim 11
Dependent Claim
14 words
The light sensitive composition of claim 9 wherein the light-sensitizing agent is Michler's ketone.
References Cited (Backward Citations)
US3255191A
Cited
US3847915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-03 | 1981-10-03 | 1982-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-03 | 1985-10-03 | 1986-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-03 | 1989-10-03 | 1990-04-04 | $7700.00 | Window Closed / Lapsed |