US4623614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silver halide photographic light-sensitive materials
Assignee: Fujifilm Holdings Corp
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Filing: 1985-08-07
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Granted: 1986-11-18
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Expires: 2005-08-07
Abstract
Abstract A silver halide photographic light-sensitive material is described, comprising a support having thereon at least one silver halide photographic light-sensitive emulsion layer, said photographic light-sensitive material further comprising at least one light-insensitive surface layer on at least one side thereof, at least one of said surface layer or layers comprising a graft polymer or copolymer having a silicone unit, and at least one of said surface layer or layers and a layer or layers adjacent to the surface layer or layers comprising an antistatic agent. The silver halide light-sensitive material has good antistatic property and reduced sliding friction without giving bad influences on the photographic properties; has good antistatic property and lubricity after development processing; has improved antistatic property and lubricity without reducing the coating properties at the production of the photographic light-sensitive material; and forms no scum during development processing.
Inventors
- 👤 Masakazu Yoneyama
- 👤 Yukio Maekawa
- 👤 Shigeki Yokoyama
- 👤 Junichi Yamanouchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:44
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/7614; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10S430/162
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
294 words
A silver halide photographic light-sensitive element comprising: (a) a support having thereon at least one silver halide photographic light-sensitive emulsion layer; (b) at least one light-insensitive surface layer on at least one side of said support, said surface layer comprising: (i) a graft polymer having a component which comprises a silicone unit and a component having an affinity with a polymer used as a binder within said light-sensitive element, wherein the amount of said graft polymer is 0.001 to 1.0 g. per square meter of said photographic light-sensitive element, and wherein said silicone unit (graft component silicone) is represented by general formula (I): ##STR14## wherein R 1 represents a hydrogen atom or a methyl group; R 2 , R 3 , R 4 , R 5 , R 6 and R 7 , which may be the same or different, each represents an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, or a cycloalkyl group, each having 1 to 20 carbon atoms; m is 0 or an integer of 1 to 400; n is 0 or an integer of 1 to 50; said m+n being 0 to 450; when m and n are 0, said R 5 , R 6 and R 7 each represents ##STR15## R 8 , R 9 and R 10 have the same meaning as aforesaid R 2 , R 3 and R 4 ; A represents a divalent group; and B represents a substituted alkyl group; and (c) at least one light-insensitive surface layer on at least one side of said support or a layer adjacent to a surface layer comprising an antistatic agent, wherein the amount of said antistatic agent is 0.1 to 1.0 g per square meter of said photographic light-sensitive element.
Claim 2
Dependent Claim
294 words
A silver halide photographic light-sensitive element comprising: (a) a support having thereon at least one silver halide photographic light-sensitive emulsion layer; (b) at least one light-insensitive surface layer on at least one side of said support, said surface layer comprising: (i) a graft polymer having a component which comprises a silicone unit and a component having an affinity with a polymer used as a binder within said light-sensitive element, wherein the amount of said graft polymer is 0.001 to 1.0 g. per square meter of said photographic light-sensitive element, and wherein said silicone unit (graft component silicone) is represented by general formula (I): ##STR14## wherein R 1 represents a hydrogen atom or a methyl group; R 2 , R 3 , R 4 , R 5 , R 6 and R 7 , which may be the same or different, each represents an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, or a cycloalkyl group, each having 1 to 20 carbon atoms; m is 0 or an integer of 1 to 400; n is 0 or an integer of 1 to 50; said m+n being 0 to 450; when m and n are 0, said R 5 , R 6 and R 7 each represents ##STR15## R 8 , R 9 and R 10 have the same meaning as aforesaid R 2 , R 3 and R 4 ; A represents a divalent group; and B represents a substituted alkyl group; and (c) at least one light-insensitive surface layer on at least one side of said support or a layer adjacent to a surface layer comprising an antistatic agent, wherein the amount of said antistatic agent is 0.1 to 1.0 g per square meter of said photographic light-sensitive element.
Claim 3
Dependent Claim
200 words
The silver halide photographic light-sensitive element as claimed in claim 1, wherein said antistatic agent is the polymeric compound having a monomer unit represented by the following general formula (II) or (III): ##STR16## wherein R 11 , R 12 , R 13 and R 14 each represents a lower alkyl group having 1 to 4 carbon atoms; E and F each represents a divalent linkage group; said R 11 , E and R 13 or said R 11 , E and R 13 and said R 12 , E and R 14 may form a ring; also, said R 11 and R 13 , said R 12 and R 14 , or said E and F may be the same or different; and X.sup.⊖ and Y.sup.⊖ each represents an anion; ##STR17## wherein R 15 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; G represents a divalent linkage group; R 16 , R 17 and R 18 each represents an alkyl group, a substituted alkyl group, or a cycloalkyl group, each having 1 to 8 carbon atoms; said R 16 and R 17 may form a ring; X.sup.⊖ has the same meaning as described above.
Claim 4
Dependent Claim
35 words
The silver halide photographic light-sensitive element as claimed in claim 1, wherein the amount of said graft polymer having a silicone unit is 0.005 to 0.5 g per square meter of the photographic light-sensitive element.
Claim 5
Dependent Claim
31 words
The silver halide photographic light-sensitive element as claimed in claim 1, wherein the amount of said antistatic agent is 0.03 to 0.4 g per square meter of the photographic light-sensitive element.
Claim 6
Dependent Claim
24 words
The silver halide photographic light-sensitive element as claimed in claim 1, wherein said surface layer is a back layer of the photographic light-sensitive element.
Claim 7
Dependent Claim
46 words
The silver halide photographic light-sensitive element as claimed in claim 1, wherein the antistatic agent exists in a layer formed on a support at the back side and the graft polymer having the silicone unit exists in a back layer formed on the antistatic agent-containing layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |