Patent US3840371A successfully refreshed from Google Patents.
US3840371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide-containing photographic material
Assignee: Fujifilm Holdings Corp
•
Filing: 1973-06-15
•
Granted: 1974-10-08
•
Expires: 1993-06-15
Abstract
Abstract A photographic light-sensitive material having a silver halidecontaining photosensitive emulsion layer on its surface is effectively rendered non-adherent or non-tacking by providing on at least one surface thereof a non-photosensitive layer containing a polymer having as its recurring unit a monoester of an aliphatic polyhydric alocohol with acrylic acid or methacrylic acid.
Inventors
- 👤 S Sakaguchi
- 👤 K Ishigaki
- 👤 T Miyazako
- 👤 T Usami
- 👤 I Horie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:06
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7614; Y; Y10; Y10S; Y10S430/00; Y10S430/162
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
40 words
A PHOTOGRAPHIC SILVER HALIDE-CONTAINING LIGHT-SENSITIVE MATERIAL CHARACTERIZED BY HAVING AT LTEAST ONE NONPHOTOSENSITIVE SURFACE LAYER CONTAINING AT LEAST ONE POLYMER CONTAINING AS ITS RECURRING UNIT AT LEAST ONE MONOESTER OF AN ALIPHATIC POLYHYDRIC ALCOHOL WITH ACRYLIC ACID OR METHACRYLIC ACID.
Claim 2
Dependent Claim
40 words
A PHOTOGRAPHIC SILVER HALIDE-CONTAINING LIGHT-SENSITIVE MATERIAL CHARACTERIZED BY HAVING AT LTEAST ONE NONPHOTOSENSITIVE SURFACE LAYER CONTAINING AT LEAST ONE POLYMER CONTAINING AS ITS RECURRING UNIT AT LEAST ONE MONOESTER OF AN ALIPHATIC POLYHYDRIC ALCOHOL WITH ACRYLIC ACID OR METHACRYLIC ACID.
Claim 3
Dependent Claim
13 words
A material as claimed in claim 1 where the polymer is a homopolymer.
Claim 4
Dependent Claim
13 words
A material as claimed in claim 1 wherein the polymer is a copolymer.
Claim 5
Dependent Claim
14 words
A material as claimed in claim 1 wherein the polymer is a graft copolymer.
Claim 6
Dependent Claim
18 words
A material as claimed in claim 2 where the molecular weight of the homopolymer is greater than 10,000.
Claim 7
Dependent Claim
18 words
A material as claimed in claim 3 wherein the molecular weight of the copolymer is greater than 10,000.
Claim 8
Dependent Claim
31 words
A material as claimed in claim 3 wherein the proportion of the monomethacrylate and/or monoacrylate of the aliphatic polyhydric alcohol in the copolymer is in an excess of 50 mol %.
Claim 9
Dependent Claim
58 words
A material as claimed in claim 4 wherein the graft copolymer comprises from about 5 to about 95% by weight of monomer grafted onto a parent polymer, the monomer comprising at least 50% By weight of monomethacrylate and/or monoacrylate of the aliphatic polyhydric alcohol and the ester being contained in an amount of at least 5% by weight.
Claim 10
Dependent Claim
20 words
A material as claimed in claim 1 wherein the non-photosensitive surface layer consists essentially of said at least one polymer.
Claim 11
Dependent Claim
22 words
A material as claimed in claim 1 wherein the non-photosensitive surface layer comprises said at least one polymer plus a different polymer.
Claim 12
Dependent Claim
24 words
A material as claimed in claim 10 wherein the non-photosensitive surface layer comprises at least 10% by weight of said at least one polymer.
Claim 13
Dependent Claim
21 words
A material as claimed in claim 11 wherein said non-photosensitive surface comprises at least 20% of said at least one polymer.
Claim 14
Dependent Claim
21 words
A material as claimed in claim 1 wherein the thickness of said non-photosensitive surface layer is at least about 0.3 microns.
Claim 15
Dependent Claim
21 words
A material as claimed in claim 13 wherein the thickness of said non-photosensitive surface layer is from 0.5 to 3 microns.
Claim 16
Dependent Claim
16 words
A material as claimed in claim 3 wherein the copolymer is with an olefinic polymerizable monomer.
Claim 17
Dependent Claim
20 words
A material as claimed in claim 15 wherein said olefinic polymerizable monomer is a vinylic monomer or a diolefinic monomer.
Claim 18
Dependent Claim
56 words
A material as claimed in claim 1 wherein said ester is selected from the group consisting of 2-hydroxyethyl methacrylate, 3-hydroxypropyl methacrylate, 2-hydroxypropyl methacrylate, 4-hydroxybutyl methacrylate, 5-hydroxypentyl methacrylate, 2,2-dimethyl-3-hydroxypropyl methacrylate, diethylene glycol monomethacrylate, trimethylolpropane monomethacrylate, pentaerythritol monomethacrylate, 2-hydroxyethyl acrylate, 3-hydroxypropyl acrylate, 2-hydroxypropyl acrylate, 4-hydroxybutyl acrylate, 5-hydroxypentyl acrylate, 2,2-dimethyl-3-hydroxypropyl acrylate, diethylene glycol monoacrylate, trimethylolpropane monoacrylate and pentaerythritol monoacrylate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |