US4663236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated photographic base material
Assignee: FELIX SCHOELLER JR & CO KG GmbH
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Filing: 1985-04-11
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Granted: 1987-05-05
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Expires: 2005-04-11
Abstract
Abstract Photographic base materials are described which contain on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of energy supplying radiation. Discoloration in connection with wet developing is avoided by including within the coating material, before hardening thereof, at least one unsaturated monomeric, oligomeric or polymeric hydroxyfunctional substance and by maintaining the molal concentration of the hydroxyl groups at a value of at least 2. The coating material as defined in the invention is suited for use as a base for photographic layers which are developed wet, as well as for those which are developed dry.
Inventors
- 👤 Reiner Anthonsen
- 👤 Ferencz Kertesz
- 👤 Heinz Trentmann
- 👤 Wieland Sack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:59
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31794; Y10T428/31855; Y10T428/31931; Y10T428/31935
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
110 words
A photographic base material which contains on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of ionizing radiation, wherein the coating, before said hardening thereof, comprises an unhardened coating composition containing at least one unsaturated hydroxyfunctional substance that is an ether or ester selected from the group consisting of monomeric, oligomeric and polymeric ethers and monomeric, oligomeric and polymeric esters, said hardened coating composition containing hydroxyl groups at a molal concentration that is equal to or greater than 2, and wherein said unhardened coating composition contains a compound having at least three carbon-to-carbon double bonds.
Claim 2
Dependent Claim
110 words
A photographic base material which contains on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of ionizing radiation, wherein the coating, before said hardening thereof, comprises an unhardened coating composition containing at least one unsaturated hydroxyfunctional substance that is an ether or ester selected from the group consisting of monomeric, oligomeric and polymeric ethers and monomeric, oligomeric and polymeric esters, said hardened coating composition containing hydroxyl groups at a molal concentration that is equal to or greater than 2, and wherein said unhardened coating composition contains a compound having at least three carbon-to-carbon double bonds.
Claim 3
Dependent Claim
39 words
The photographic base material as defined in claim 1, wherein the hydroxyfunctional substance contains at least one hydroxyl group which is on a carbon atom in β position or γ position relative to an ester group or ether group.
Claim 4
Dependent Claim
46 words
The photographic base material as defined in claim 1, wherein the hydroxyfunctional substance includes at least one carbon-to-carbon double bond and is selected from the group consisting of a hydroxyalkyl ester of an unsaturated acid, an allyl ester of a hydroxy acid, and a hydroxyalkylallyl ether.
Claim 5
Dependent Claim
41 words
The photographic base material as defined in claim 3, wherein the hydroxyfunctional substance is selected from the group consisting of an ester of an acrylic acid, an ester of a methacrylic acid and an ester of a bivalent or multivalent alcohol.
Claim 6
Dependent Claim
123 words
A photographic base material which contains on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of energy supplying radiation, wherein the coating, before said energy hardening thereof, comprises an unhardened coating composition containing at least one unsaturated hydroxyfunctional substance that is an ether or ester selected from the group consisting of monomeric, oligomeric and polymeric ethers and monomeric, oligomeric and polymeric esters, said unhardened coating composition containing hydroxyl groups at a molal concentration that is equal to or greater than 2; wherein the hydroxyfunctional substance includes at least one carbon-to-carbon double bond and is a hydroxyalkylallyl ether that is an allyl ether of a bivalent or multivalent alcohol.
Claim 7
Dependent Claim
123 words
A photographic base material which contains on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of energy supplying radiation, wherein the coating, before said energy hardening thereof, comprises an unhardened coating composition containing at least one unsaturated hydroxyfunctional substance that is an ether or ester selected from the group consisting of monomeric, oligomeric and polymeric ethers and monomeric, oligomeric and polymeric esters, said unhardened coating composition containing hydroxyl groups at a molal concentration that is equal to or greater than 2; wherein the hydroxyfunctional substance includes at least one carbon-to-carbon double bond and is a hydroxyalkylallyl ether that is an allyl ether of a bivalent or multivalent alcohol.
Claim 8
Dependent Claim
116 words
A photographic base material which contains on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of energy supplying radiation, wherein the coating, before said energy hardening thereof, comprises an unhardened coating composition containing at least one unsaturated hydroxyfunctional substance that is an ether or ester selected from the group consisting of monomeric, oligomeric and polymeric ethers and monomeric, oligomeric and polymeric esters, said unhardened coating composition containing hydroxyl groups at a molal concentration that is equal to or greater than 2; wherein the hydroxyfunctional substance includes at least one carbon-to-carbon double bond and is an allyl ester of a hydroxy acid.
Claim 9
Dependent Claim
116 words
A photographic base material which contains on at least one side thereof a coating whose binder component is produced predominantly from unsaturated compounds and which has been hardened by means of energy supplying radiation, wherein the coating, before said energy hardening thereof, comprises an unhardened coating composition containing at least one unsaturated hydroxyfunctional substance that is an ether or ester selected from the group consisting of monomeric, oligomeric and polymeric ethers and monomeric, oligomeric and polymeric esters, said unhardened coating composition containing hydroxyl groups at a molal concentration that is equal to or greater than 2; wherein the hydroxyfunctional substance includes at least one carbon-to-carbon double bond and is an allyl ester of a hydroxy acid.
Claim 10
Dependent Claim
24 words
The photographic base material as defined in claim 1, wherein the molal concentration of the hydroxyl groups is equal to or larger than 2.5.
Claim 11
Dependent Claim
31 words
The photographic base material as defined in claim 7, wherein the hydroxyl group is on a carbon atom in β position or γ position relative to said ester group or ether.
Claim 12
Dependent Claim
19 words
The photographic base material as defined in claim 1, wherein the hydroxyfunctional substance is a derivative of a glycol.
Claim 13
Dependent Claim
18 words
The photographic base naterial as defined in claim 7, wherein the hydroxyfunctional substance is a derivative of glycol.
Claim 14
Dependent Claim
18 words
The photographic base material as defined in claim 1, wherein the hydroxyfunctional substance is a derivative of glycerin.
Claim 15
Dependent Claim
18 words
The photographic base material as defined in claim 7, wherein the hydroxyfunctional substance is a derivative of glycerin.
Claim 16
Dependent Claim
20 words
The photographic base material as defined in claim 1, wherein the hydroxyfunctional substance is a derivative of sorbitol or pentaerythritol.
Claim 17
Dependent Claim
21 words
The photographic base material as defined in claim 7, wherein the hydroxyfunctional substance is a derivative of sorbitol or of pentaerythritol.
Claim 18
Dependent Claim
20 words
The photographic base material as defined in claim 2, wherein the hydroxyfunctional substance includes at least two carbon-to-carbon double bonds.
Claim 19
Dependent Claim
20 words
The photographic base material as defined in claim 8, wherein the hydroxyfunctional substance includes at least two carbon-to-carbon double bonds.
Claim 20
Dependent Claim
18 words
The photographic base material as defined in claim 2, wherein the hydroxyfunctional substance is a single unsaturated compound.
Claim 21
Dependent Claim
18 words
The photographic base material as defined in claim 8, wherein the hydroxyfunctional substance is a single unsaturated compound.
Claim 22
Dependent Claim
23 words
The photographic base material as defined in claim 2, wherein the hydroxyfunctional substance is a mixture of single unsaturated and multiple unsaturated compounds.
Claim 23
Dependent Claim
23 words
The photographic base material as defined in claim 8, wherein the hydroxyfunctional substance is a mixture of single unsaturated and multiple unsaturated compounds.
Claim 24
Dependent Claim
31 words
The photographic base material as defined in claim 1, wherein the coating material contains a colorant selected from the group consisting of white pigment, coloring substance, color pigment, and combinations thereof.
Claim 25
Dependent Claim
31 words
The photographic base material as defined in claim 7, wherein the coating material contains a colorant selected from the group consisting of white pigment, coloring substance, color pigment, and combinations thereof.
Claim 26
Dependent Claim
17 words
The photographic base material as defined in claim 21, wherein the coating material contains an optical brightener.
Claim 27
Dependent Claim
17 words
The photographic base material as defined in claim 22, wherein the coating material contains an optical brightener.
References Cited (Backward Citations)
US4384040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-04 | 1990-11-03 | 1991-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-04 | 1994-11-03 | 1995-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-04 | 1998-11-03 | 1999-05-05 | $7700.00 | Window Closed / Lapsed |