US5204219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic element with novel subbing layer
Assignee: 3M Co
•
Filing: 1992-01-21
•
Granted: 1993-04-20
•
Expires: 2012-01-21
Abstract
Abstract The use of a gelled network of inorganic oxide particles on the polymeric surface of a substrate provides a subbing layer having the potential for antistatic properties, antihalation properties, and good coatability.
Inventors
- 👤 Wim J. Van Ooij
- 👤 David R. Boston
- 👤 Edward J. Woo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:40
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/91; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
85 words
A polymeric film having adhered to at least one surface thereof a layer comprising a continuous gelled network of inorganic particles containing from 0.1 to 20% by weight of solids content of said layer of an ambifunctional silane represented by the formula (Q).sub.n --R--Si(OR.sup.1).sub.3 wherein R 1 is alkyl or aryl, R is the organic group of up to 10 carbon atoms having n+1 external valences, n is 1, or 2, and Q is an amino or epoxy moiety reactive with gelatin hardeners or gelatin.
Claim 2
Dependent Claim
85 words
A polymeric film having adhered to at least one surface thereof a layer comprising a continuous gelled network of inorganic particles containing from 0.1 to 20% by weight of solids content of said layer of an ambifunctional silane represented by the formula (Q).sub.n --R--Si(OR.sup.1).sub.3 wherein R 1 is alkyl or aryl, R is the organic group of up to 10 carbon atoms having n+1 external valences, n is 1, or 2, and Q is an amino or epoxy moiety reactive with gelatin hardeners or gelatin.
Claim 3
Dependent Claim
26 words
The film of claim 1 wherein said gelled network of inorganic oxide particles comprises a layer having an average thickness of between 800 and 5,000 Angstroms.
Claim 4
Dependent Claim
24 words
The film of claim 2 wherein said inorganic oxide particles are selected from the class consisting of silica, titania, tin oxide and mixtures thereof.
Claim 5
Dependent Claim
14 words
The film of claim 1 wherein said inorganic particles comprise inorganic metal oxide particles.
Claim 6
Dependent Claim
17 words
The film of claim 4 wherein said ambifunctional silane comprises from 0.2 to 10% of said layer.
Claim 7
Dependent Claim
10 words
The polymeric film of claim 1 wherein Q is epoxy.
Claim 8
Dependent Claim
17 words
The film of claim 1 wherein said ambifunctional silane comprises from 0.2 to 10% of said layer.
Claim 9
Dependent Claim
17 words
The film of claim 2 wherein said ambifunctional silane comprises from 0.2 to 10% of said layer.
Claim 10
Dependent Claim
10 words
The polymeric film of claim 4 wherein Q is epoxy.
Claim 11
Dependent Claim
38 words
A synthetic polymeric film having adhered to at least one surface thereof a layer of a continuous gelled network of inorganic particles comprising silica particles and 0.1 to 20% of said layer of an ambifunctional silane comprising gammaglycidoxypropyltrimethoxysilane.
Claim 12
Dependent Claim
38 words
A synthetic polymeric film having adhered to at least one surface thereof a layer of a continuous gelled network of inorganic particles comprising silica particles and 0.1 to 20% of said layer of an ambifunctional silane comprising gammaglycidoxypropyltrimethoxysilane.
Claim 13
Dependent Claim
23 words
The polymeric film of claim 10 wherein said substrate is a polymeric film selected from the group consisting of polyester, and primed polyester.
Claim 14
Dependent Claim
17 words
The film of claim 11 wherein said ambifunctional silane comprises from 0.2 to 10% of said layer.
Claim 15
Dependent Claim
14 words
The film of claim 11 wherein said inorganic particles comprise inorganic metal oxide particles.
Claim 16
Dependent Claim
86 words
A polymeric film having adhered to at least one surface thereof a layer comprising a continuous gelled network of inorganic particles containing from 0.1 to 20% by weight of solids content of said layers of an ambifunctional silane represented by the formula: (Q).sub.n --R--Si(OR.sup.1).sub.3 wherein R 1 is alkyl of 1 to 4 carbon atoms, R is a bridging moiety selected from the group consisting of alkylene, arylene, alkarylene, and aralkylene of up to 10 carbon atoms, n is 1, and Q is amino or epoxy.
Claim 17
Dependent Claim
86 words
A polymeric film having adhered to at least one surface thereof a layer comprising a continuous gelled network of inorganic particles containing from 0.1 to 20% by weight of solids content of said layers of an ambifunctional silane represented by the formula: (Q).sub.n --R--Si(OR.sup.1).sub.3 wherein R 1 is alkyl of 1 to 4 carbon atoms, R is a bridging moiety selected from the group consisting of alkylene, arylene, alkarylene, and aralkylene of up to 10 carbon atoms, n is 1, and Q is amino or epoxy.
Claim 18
Dependent Claim
10 words
The polymeric film of claim 14 wherein Q is epoxy.
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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) | 1996-04-19 | 1996-10-19 | 1997-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-19 | 2000-10-19 | 2001-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-19 | 2004-10-19 | 2005-04-20 | $7700.00 | Window Closed / Lapsed |