Patent JPS6148608A successfully refreshed from Google Patents.
US4359499A
Expired / Lapsed
US
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Packaging material for photosensitive materials
Assignee: Fujifilm Holdings Corp
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Filing: 1981-02-17
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Granted: 1982-11-16
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Expires: 2001-02-17
Abstract
Abstract A packaging material for photosensitive materials is disclosed consisting of a uniaxially oriented thermoplastic film having formed thereon at least one flexible layer, which is not uniaxially oriented, having a tear strength less than that of the film in the direction perpendicular to the axis of orientation of the film.
Inventors
- 👤 Mutsuo Akao
- 👤 Kenzo Kashiwagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/18; B32B15/00; B32B15/04; B32B15/08; B32B15/20; B32B27/10; B32B27/12; B32B27/30; B32B27/302; B32B27/304; B32B27/32; B32B27/34; B32B27/36; B32B5/00; B32B5/02; B32B5/022; B32B5/024; B32B7/00; B32B7/04; B32B7/12; B32B2305/00; B32B2305/10; B32B2305/18; B32B2305/188; B32B2305/20; B32B2311/00; B32B2311/24; B32B2317/00; B32B2317/12; B32B2323/00; B32B2323/04; B32B2323/043; B32B2323/10; B32B2327/00; B32B2367/00; B32B2377/00; B32B2553/00; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24893; Y10T428/24901; Y10T428/24934; Y10T428/24942; Y10T428/26; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31786; Y10T428/3179; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
67 words
A packaging material for photosensitive materials which consists of a uniaxially oriented thermoplastic film oriented with respect to the longitudinal axis of the film at an angle of 45° to 89.9° and having formed thereon at least one flexible layer, which is not uniaxially oriented, having a tear strength less than that of the film in the direction perpendicular to the axis of orientation of the film.
Claim 2
Dependent Claim
67 words
A packaging material for photosensitive materials which consists of a uniaxially oriented thermoplastic film oriented with respect to the longitudinal axis of the film at an angle of 45° to 89.9° and having formed thereon at least one flexible layer, which is not uniaxially oriented, having a tear strength less than that of the film in the direction perpendicular to the axis of orientation of the film.
Claim 3
Dependent Claim
24 words
A packaging material as in claim 1 wherein at least one of the oriented thermoplastic film or flexible layer contains a light shielding substance.
Claim 4
Dependent Claim
41 words
A packaging material as in claim 1 wherein said oriented film is selected from the group consisting of a high density polyethylene film, a polypropylene film, a polystyrene film, a nylon film, a polyvinylidene chloride film, and a polyethylene terephthalate film.
Claim 5
Dependent Claim
40 words
A packaging material as in claim 1 wherein said flexible layer is selected from the group consisting of paper, a thermoplastic resin layer, a thermoplastic resin film laminated layer, cellophane, aluminum foil, cloth fabric, synthetic paper and non woven cloth.
Claim 6
Dependent Claim
27 words
A packaging material as in claim 1, 2, 3, or 4 wherein the thickness of said oriented film is in the range of from 30 to 60μ.
Claim 7
Dependent Claim
16 words
A packaging material as in claim 1 including an adhesive layer containing a light shielding substance.
Claim 8
Dependent Claim
27 words
A packaging material as in claim 2 or 6 wherein the light shielding substance is at least one of carbon black, metal powder, pigments, and coloring dyes.
Claim 9
Dependent Claim
15 words
A packaging material as in claim 7 wherein the light shielding substance is metal powder.
Claim 10
Dependent Claim
26 words
A packaging material as in claim 8 wherein said metal powder is selected from the group consisting of aluminum, iron, magnesium, tin, zinc, and alloys thereof.
Claim 11
Dependent Claim
33 words
A packaging material as in claim 2 or 6 wherein the light-shielding substance is incorporated in the packaging material in an amount in the range of from 0.1 to 7 g/m 2 .
Claim 12
Dependent Claim
31 words
A packaging material as in claim 10 wherein the light-shielding material is incorporated in the packaging material in an amount in the range of from 1 to 5 g/m 2 .
Claim 13
Dependent Claim
30 words
A packaging material as in claim 1 or 2 comprising an adhesive layer for adhering the uniaxially oriented thermoplastic film and flexible layer, said adhesive layer containing a net-like space.
Claim 14
Dependent Claim
31 words
A packaging material as in claim 1 or 2 comprising an adhesive layer for adhering the axially oriented thermoplastic film and flexible layer, said adhesive layer containing multiple continuous stripe-like spaces.
Claim 15
Dependent Claim
15 words
A packaging material as in claim 7 wherein the light shielding substance is a pigment.
Claim 16
Dependent Claim
27 words
A packaging material as in claim 14 wherein said pigment is selected from the group consisting of barium sulfate, clay, kaolin, talc, calcium carbonate and titanium oxide.
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) | 1985-11-15 | 1986-05-17 | 1986-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-15 | 1990-05-17 | 1990-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-15 | 1994-05-17 | 1994-11-16 | $7700.00 | Window Closed / Lapsed |