US3617288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propenone sensitizers for the photolysis of organic halogen compounds
Assignee: 3M Co
•
Filing: 1969-09-12
•
Granted: 1971-11-02
•
Expires: 1989-09-12
Abstract
Abstract Photosensitive compositions containing non-basic propenone compounds as sensitizers for photolyzable organic halogen compounds, and image recording elements in which at least one layer contains such photosensitive compositions.
Inventors
- 👤 Richard B Hartman
- 👤 George H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:10
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/14; C09B23/143; C09B23/0008; C09B23/005; G; G03; G03C; G03C1/00; G03C1/675; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029; G03F7/0295; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/126; Y10S430/127
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
17 words
The photosensitive composition of claim 1 in which said photolyzable organic halogen compounds are normally nongaseous compounds.
Claim 2
Dependent Claim
10 words
A photosensitive layer containing the photosensitive composition of claim 1.
Claim 3
Dependent Claim
26 words
The photosensitive composition of claim 1 in which said composition is capable of a chemical change in the presence of either free radical halogen or acid.
Claim 4
Dependent Claim
14 words
The photosensitive composition of claim 1 in which said composition contains a photopolymerizable monomer.
Claim 5
Dependent Claim
22 words
The photosensitive composition of claim 1 in which said composition contains a compound which is capable of changing color in acid environment.
Claim 6
Dependent Claim
24 words
The photosensitive composition of claim 1 in which the molar ratio of said sensitizer to said organic halogen compound is from 1/20 to 2/1.
Claim 7
Dependent Claim
17 words
An image recording element which contains at least one layer comprising the photosensitive composition of claim 1.
References Cited (Backward Citations)
US3081165A
Cited
US3374094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |