Patent US985367A successfully refreshed from Google Patents.
US3661584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proteinaceous colloid compositions provided on glass supports
Assignee: Agfa Gevaert NV
•
Filing: 1969-11-10
•
Granted: 1972-05-09
•
Expires: 1989-11-10
Abstract
Abstract A photographic element comprising a glass support and a photosensitive emulsion layer on said support comprising a filmforming proteinaceous colloid is described. The adherence of the emulsion layer to the glass support is enhanced by including the emulsion layer an organic silicon compound having hydrocarbon groups directly or indirectly attached to a silicon atom wherein at least one of the hydrocarbon groups carries a group or atom which has chemical affinity for the free reactive groups of the proteinaceous colloid or which can be cross-linked to the free reactive groups through the intermediary of a cross-linking agent. The adherence of the photosensitive emulsion layer to the glass support is enhanced without affecting the photosensitive properties of the emulsion layer.
Inventors
- 👤 Walter August Van Den Heuvel
- 👤 Jozef Frans Willems
- 👤 Herman Adelbert Philippaerts
- 👤 Roland Francois Beels
- 👤 Renaat Frans Heylen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:40
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/0293; G; G03; G03C; G03C1/00; G03C1/76; G03C1/91
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
165 words
Method according to cLaim 1, wherein the said organic silicon compound corresponds to the following formula : wherein : X stands for oxygen or -O-CO-, each of R1, R2, R3 and R4 (the same or different) stands for a hydrocarbon group at least one of said hydrocarbon groups comprising a group or atom that has a chemical affinity for the free reactive groups of the said proteinaceous colloid or that can be cross-linked to the said free reactive groups through the intermediary of a cross-linking agent, and each of n, n'' and n'''', the same or different, stands for 0 or 1, n + n'' + n'''' being at least equal to 1 and when n + n'' + n'''' 1, R1 being a hydrocarbon group comprising a said group or atom that has a chemical affinity for the free reactive groups of the said proteinaceous colloid or that can be cross-linked to the said free reactive groups through the intermediary of a cross-linking agent.
Claim 2
Dependent Claim
69 words
Method according to claim 2, wherein n + n'' + n'''' 3, each of R2, R3 and R4 stands for an alkyl group and R1 stands for an alkyl group comprising a said group or atom that has a chemical affinity for the free reactive groups of the said proteinaceous colloid or that can be cross-linked to the said free reactive groups through the intermediary of a cross-linking agent.
Claim 3
Dependent Claim
58 words
Method according to claim 1, wherein the said group or atom having a chemical affinity for the free reactive groups of the proteinaceous colloid is a member selected from acid anhydride groups, groups comprising an active halogen atom, acid ester groups, aldehyde groups, ketone groups, groups with activated double bond, isocyanate groups, masked isocyanate groups and epoxy groups.
Claim 4
Dependent Claim
36 words
Method according to claim 1, wherein the said group that can be cross-linked to the free reactive groups of the proteinaceous colloid through the intermediary of a cross-linking agent is a primary or secondary amine group.
Claim 5
Dependent Claim
19 words
Method according to claim 1, wherein the said organic silicon compound is present in the said proteinaceous colloid emulsion.
Claim 6
Dependent Claim
36 words
Method according to claim 1, which comprises the steps of first treating the glass surface with a solution of the said organic silicon compound and then coating the said colloid emulsion on the glass surface treated.
Claim 7
Dependent Claim
37 words
Method according to claim 1, which comprises the steps of applying to the glass surface a composition comprising a hydrophilic film-forming colloid binder and a said organic silicon compound and coating thereover the said proteinaceous colloid emulsion.
Claim 8
Dependent Claim
12 words
Method according to claim 1, wherein the said proteinaceous colloid is gelatin.
Claim 9
Dependent Claim
17 words
Method according to claim 1, wherein the said proteinaceous colloid emulsion is a gelatino silver halide emulsion.
Claim 10
Dependent Claim
19 words
Method according to claim 10, wherein said silver halide emulsion is a silver halide emulsion of the Lippmann type.
Claim 11
Dependent Claim
34 words
Method according to claim 1, wherein the said organic silicon compound is used in an amount comprised between 1 mg and 100 mg per gram of dry proteinaceous colloid of the proteinaceous colloid emulsion.
Claim 12
Dependent Claim
82 words
A photographic element comprising a glass support and a photosensitive emulsion layer on said support comprising a film-forming proteinaceous colloid and an organic silicon compound having hydrocarbon groups directly or indirectly attached to a silicon atom wherein at least one of said hydrocarbon groups carries a group or atom that has a chemical affinity for the free reactive groups of the said proteinaceous colloid or that can be cross-linked to the said free reactive groups through the intermediary of a cross-linking agent.
Claim 13
Dependent Claim
165 words
A photographic element according to claim 13 wherein said silicon compound corresponds to the following formula : wherein : X stands for oxygen or -O-CO-, each of R1, R2, R3 and R4 (the same or different) stands for a hydrocarbon group at least one of said hydrocarbon groups comprising a group or atom that has a chemical affinity for the free reactive groups of the said proteinaceous colloid or that can be cross-linked to the said free reactive groups through the intermediary of a cross-linking agent, and each of n, n'' and n'''', the same or different, stands for 0 or 1, n + n'' + n'''' being at least equal to 1 and when n + n'' + n'''' 1, R1 being a hydrocarbon group comprising a said group or atom that has a chemical affinity for the free reactive groups of the said proteinaceous colloid or that can be cross-linked to the said free reactive groups through the intermediary of a cross-linking agent.
Claim 14
Dependent Claim
14 words
A photographic element according to claim 13, wherein the said proteinaceous colloid is gelatin.
Claim 15
Dependent Claim
20 words
A photographic element according to claim 13, wherein the said photosensitive emulsion layer is a gelatino silver halide emulsion layer.
Claim 16
Dependent Claim
24 words
A photographic element according to claim 16, wherein the said gelatino silver halide emulsion layer is a silver halide emulsion layer of the Lippmann-type.
Claim 17
Dependent Claim
20 words
A photographic element according to claim 13, wherein said emulsion layer also comprises a hardening agent for said proteinaceous colloid.
Claim 18
Dependent Claim
13 words
A photographic element according to claim 18, wherein said hardening agent is formaldehyde.
Claim 19
Dependent Claim
30 words
A photographic element according to claim 13, wherein the said organic silicon compound is present in an amount of 1 mg to 100 mg per gram of dry proteinaceous colloid.
References Cited (Backward Citations)
GB821251A
Cited
US2946701A
Cited
US3072482A
Cited
US3186965A
Cited
US3438801A
Cited
US3461027A
Cited
US3453136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |