US3983301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film base material
Assignee: Ilford Imaging UK Ltd
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Filing: 1974-05-16
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Granted: 1976-09-28
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Expires: 1994-05-16
Abstract
Abstract The present invention relates to film base material. A film of synthetic linear polyester has superimposed thereon a phenoxy resin of the formula ##SPC1## Wherein each of R 1 to R 7 is a hydrogen atom or a lower alkyl or cyclohexyl group, R 8 is a hydrogen atom or an acyl radical of the formula ##EQU1## wherein m is 0 to 6, at least one of X, Y and Z is a chlorine or bromine atom or a cyano group, the other of X, Y and Z are each hydrogen atoms or bromine or chlorine atoms, n is at least 50 and from 50 to 100 % of the R 8 groups are a said acyl residue. An improved adhesion between the film base material of this composition and a hydrophilic layer coated thereon is achieved.
Inventors
- 👤 Robert Stanley Cook
- 👤 Keith Reid Tatchell
- 👤 Kenneth Archibald Cockerton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:31
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; G03C1/93; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31725; Y10T428/31768; Y10T428/31786
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
Film base material comprising a film of synthetic linear polyester of hydrophobic character having superimposed thereon adherent to at least one entire side of said film a layer which comprises a phenoxy resin of the formula ##SPC3## wherein each of R 1 through R 7 is hydrogen, lower alkyl or cyclohexyl, from 50 to 100% of the R 8 groups in the phenoxy resin represent the acyl radical of the formula ##EQU2##wherein m is 0 or an integer from 1 to 6, at least one of X, Y and Z is chlorine, bromine or cyano, and the other of X, Y and Z are each hydrogen, bromine or chlorine, any balance of the R 8 groups in the phenoxy resin being hydrogen, and n is at least 50.
Claim 2
Dependent Claim
128 words
Film base material comprising a film of synthetic linear polyester of hydrophobic character having superimposed thereon adherent to at least one entire side of said film a layer which comprises a phenoxy resin of the formula ##SPC3## wherein each of R 1 through R 7 is hydrogen, lower alkyl or cyclohexyl, from 50 to 100% of the R 8 groups in the phenoxy resin represent the acyl radical of the formula ##EQU2##wherein m is 0 or an integer from 1 to 6, at least one of X, Y and Z is chlorine, bromine or cyano, and the other of X, Y and Z are each hydrogen, bromine or chlorine, any balance of the R 8 groups in the phenoxy resin being hydrogen, and n is at least 50.
Claim 3
Dependent Claim
95 words
Film base material as claimed in claim 1 wherein the phenoxy resin is of the formula ##SPC4## wherein from 50 to 100% of the R 8 groups in the phenoxy resin represent the acyl radical of the formula ##EQU3##wherein m represents 0 or an integer from 1 to 6, at least one of X, Y and Z is chlorine, bromine or cyano, and the other of X, Y and Z are each hydrogen, bromine or chlorine, any balance of the R 8 groups in the phenoxy resin being hydrogen, and n is at least 50.
Claim 4
Dependent Claim
81 words
Film base material as claimed in claim 2 wherein the phenoxy resin is of the formula ##SPC5## wherein n 1 is 80 to 110 and from 70 to 100% of the R 8 groups in the phenoxy resin represent the acyl radical of the formula ##STR3##wherein m 1 is 0, 1 or 2 and U represents a radical selected from the group consisting of radicals of the formulae ##STR4##any balance of the R 8 groups in the phenoxy resin being hydrogen.
Claim 5
Dependent Claim
66 words
Film base material as claimed in claim 2 wherein the phenoxy resin is of the formula ##SPC6## wherein n 1 is 80 to 110 and from 70 to 100% of the R 8 groups in the phenoxy resin represent the acyl radical of the formula ##STR5##wherein m 1 is 0, 1 or 2, any balance of the R 8 groups in the phenoxy resin being hydrogen.
Claim 6
Dependent Claim
31 words
Film base material as claimed in claim 2 wherein the phenoxy resin is of the formula ##SPC7## wherein R 8 satisfies the requirements given in claim 11 and n 1 is
Claim 7
Dependent Claim
17 words
Film base material as claimed in claim 2 which further comprises a gelatin based layer coated thereon.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |