US4356224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrapping material for photographic light-sensitive material
Assignee: Fujifilm Holdings Corp
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Filing: 1980-06-02
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Granted: 1982-10-26
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Expires: 2000-06-02
Abstract
Abstract Material for use in wrapping photographic light-sensitive material is described, including a resin layer comprising a thermoplastic resin having an aluminum paste or powder dispersed therein; this material has desirable characteristics for such a wrapping material and can be economically produced.
Inventors
- 👤 Mutsuo Akao
- 👤 Tadashi Kawata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:52
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; B32B27/00; B32B27/18; B32B27/06; B32B27/08; B32B27/10; B32B27/20; B65; B65D; B65D65/00; B65D65/02; B65D65/16; G; G03; G03C; G03C3/00; B32B37/00; B32B37/12; B32B37/1207; B32B2037/1215; B32B2323/00; B32B2323/04; B32B2323/043; B32B2323/046; B32B2398/00; B32B2398/20; B32B2553/00; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/254; Y10T428/256; Y10T428/26; Y10T428/268; Y10T428/29; Y10T428/2982
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
56 words
In a wrapping material for photographic light-sensitive materials, the improvement which comprises said wrapping material including a light-shielding resin layer, said layer being produced by extruding pellets of a mixture of (1) on aluminum paste or aluminum powder and (2) a thermoplastic resin, where said pellets contain about 0.5% by weight or less of white spirit.
Claim 2
Dependent Claim
56 words
In a wrapping material for photographic light-sensitive materials, the improvement which comprises said wrapping material including a light-shielding resin layer, said layer being produced by extruding pellets of a mixture of (1) on aluminum paste or aluminum powder and (2) a thermoplastic resin, where said pellets contain about 0.5% by weight or less of white spirit.
Claim 3
Dependent Claim
34 words
A wrapping material as in claim 1 wherein said light-shielding resin layer contains the aluminum paste or powder in an amount of from about 0.05 g Al/m 2 to 40 g Al/m 2 .
Claim 4
Dependent Claim
14 words
A wrapping material as in claim 1 or 2, comprising a single layer construction.
Claim 5
Dependent Claim
16 words
A wrapping material as in claim 1 or 2, including an adhesive layer and a support.
Claim 6
Dependent Claim
19 words
A wrapping material as in claim 1 or 2, wherein said resin layer contains pigment, dye, or combinations thereof.
Claim 7
Dependent Claim
14 words
A wrapping material as in claim 5, wherein said resin layer contains carbon black.
Claim 8
Dependent Claim
14 words
A wrapping material as in claim 1 or 2 comprising a two layer construction.
Claim 9
Dependent Claim
14 words
A wrapping material as in claim 1 or 2 comprising a three layer construction.
Claim 10
Dependent Claim
24 words
A wrapping material as in claim 1 or 2 including a support and an adhesive layer between said support and said light-shielding resin layer.
Claim 11
Dependent Claim
31 words
A wrapping material as in claim 9, wherein said adhesive layer includes a thermoplastic resin, a hot-melt type rubber based adhesive, a solvent type rubber-based adhesive, or a water soluble adhesive.
Claim 12
Dependent Claim
16 words
A wrapping material as in claim 10, wherein said adhesive layer comprises transparent low density polyethylene.
Claim 13
Dependent Claim
21 words
A wrapping material as in claim 9, wherein the total thickness of the wrapping material is from about 30 to 200μ.
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) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |