US4450227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersed imaging systems with tetra (hydrocarbyl) borate salts
Assignee: 3M Co
•
Filing: 1982-10-25
•
Granted: 1984-05-22
•
Expires: 2002-10-25
Abstract
Abstract Light sensitive systems comprising a tetra(hydrocarbyl)borate and a dye may be used in the form of a dispersion, with the light sensitive borate and dye in one phase which is dispersed within a second phase.
Inventors
- 👤 Brian N. Holmes
- 👤 Rex J. Dalzell
- 👤 Steven M. Aasen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:24
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/02; G03C1/00; G03C1/72; G03C1/73; G03C1/735
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
35 words
A light-sensitive positive-acting imaging material comprising a first phase comprising a tetra(hydrocarbyl)borate salt in reactive association with a bleachable dye in a solid or liquid medium and said first phase dispersed in a second phase.
Claim 2
Dependent Claim
35 words
A light-sensitive positive-acting imaging material comprising a first phase comprising a tetra(hydrocarbyl)borate salt in reactive association with a bleachable dye in a solid or liquid medium and said first phase dispersed in a second phase.
Claim 3
Dependent Claim
9 words
The material of claim 1 coated on a substrate.
Claim 4
Dependent Claim
23 words
The material of claim 2 wherein said first phase further comprises an organic solvent and said second phase comprises a solid organic binder.
Claim 5
Dependent Claim
25 words
The material of claim 2 wherein said first phase further comprises an organic polymeric binder and said second phase comprises a different organic polymeric binder.
Claim 6
Dependent Claim
16 words
The material of claim 3 wherein said organic solvent comprises a high temperature boiling organic solvent.
Claim 7
Dependent Claim
11 words
The material of claim 5 wherein said second phase comprises gelatin.
Claim 8
Dependent Claim
18 words
The material of claim 3 wherein two, three or four bleachable dyes are present within said first phase.
Claim 9
Dependent Claim
18 words
The material of claim 5 wherein two, three or four bleachable dyes are present within said first phase.
Claim 10
Dependent Claim
13 words
The material of claim 3 wherein said salt comprises a tetraalkyl borate salt.
Claim 11
Dependent Claim
13 words
The material of claim 5 wherein said salt comprises a tetraalkyl borate salt.
References Cited (Backward Citations)
US3503745A
Cited
GB1370058A
Cited
US4003748A
Cited
US4066568A
Cited
US4307182A
Cited
US4343891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |