US4188220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supports for photographic paper and photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
•
Filing: 1976-03-31
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Granted: 1980-02-12
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Expires: 1996-03-31
Abstract
Abstract A support for photographic paper coated with a resin composition comprising 100 parts by weight of a polyolefin resin and about 5 to about 25 parts by weight of a low molecular weight polyolefin having a number average molecular weight of about 1,500 to about 10,000. A photographic light-sensitive material comprising such a support is also disclosed.
Inventors
- 👤 Tsuneo Kasugai
- 👤 Keishi Kitagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:55
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
58 words
A base support coated with a resin composition which comprises about 5 to about 25 parts by weight of a low molecular weight polyolefin having a number average molecular weight of from about 1,500 to about 10,000 in combination with 100 parts by weight of a polyolefin resin having a number average molecular weight of 20,000 to 200,000.
Claim 2
Dependent Claim
58 words
A base support coated with a resin composition which comprises about 5 to about 25 parts by weight of a low molecular weight polyolefin having a number average molecular weight of from about 1,500 to about 10,000 in combination with 100 parts by weight of a polyolefin resin having a number average molecular weight of 20,000 to 200,000.
Claim 3
Dependent Claim
28 words
The support of claim 1, wherein any polyolefin is selected from the group consisting of polyethylene, polypropylene, copolymers containing ethylene and propylene as main components, and mixtures thereof.
Claim 4
Dependent Claim
27 words
The support of claim 1, wherein the base support is selected from the group consisting of paper, baryta-coated paper, a plastic sheet, and a synthetic resin paper.
Claim 5
Dependent Claim
68 words
A photographic light-sensitive material comprising a base support coated with a resin composition which comprises from about 5 to about 25 parts by weight of a low molecular weight polyolefin having a number average molecular weight of about 1500 to about 10,000 in combination with 100 parts by weight of a polyolefin resin having a number average weight of 20,000 to 200,000 and with a photographic light-sensitive layer.
Claim 6
Dependent Claim
68 words
A photographic light-sensitive material comprising a base support coated with a resin composition which comprises from about 5 to about 25 parts by weight of a low molecular weight polyolefin having a number average molecular weight of about 1500 to about 10,000 in combination with 100 parts by weight of a polyolefin resin having a number average weight of 20,000 to 200,000 and with a photographic light-sensitive layer.
Claim 7
Dependent Claim
18 words
The photographic light-sensitive material of claim 4, wherein said photographic light-sensitive layer comprises a gelatino-silver halide photograhic emulsion.
Claim 8
Dependent Claim
77 words
In a method for preventing the stretching of a polyolefin layer coated on a base support and having overcoated on said polyolefin layer a light-sensitive layer, the improvement which comprises incorporating from about 5 to about 25 parts by weight of a low molecular weight polyolefin having a number average molecular weight of about 1500 to about 10,000 into 100 parts by weight of a polyolefin resin having a number average molecular weight of 20,000 to 200,000.
Claim 9
Dependent Claim
77 words
In a method for preventing the stretching of a polyolefin layer coated on a base support and having overcoated on said polyolefin layer a light-sensitive layer, the improvement which comprises incorporating from about 5 to about 25 parts by weight of a low molecular weight polyolefin having a number average molecular weight of about 1500 to about 10,000 into 100 parts by weight of a polyolefin resin having a number average molecular weight of 20,000 to 200,000.
Claim 10
Dependent Claim
16 words
The method of claim 6, wherein said light-sensitive layer is a photographic gelatino-silver halide light-sensitive layer.
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) | 1983-02-11 | 1983-08-13 | 1984-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-11 | 1987-08-13 | 1988-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-11 | 1991-08-13 | 1992-02-12 | $7700.00 | Window Closed / Lapsed |