US4179541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic support material and method of producing same
Assignee: Mitsubishi Paper Mills Ltd
•
Filing: 1977-08-12
•
Granted: 1979-12-18
•
Expires: 1997-08-12
Abstract
Abstract An embossed photographic support material is produced by extrusion coating a polyolefin resin over a pattern embossed on a base paper material and pressing the polyolefin resin onto the embossed paper with a cooling roll. The cooling roll has a surface finish to impart the desired amount of gloss to the embossed surface.
Inventors
- 👤 Masao Miyama
- 👤 Sakan Yamaguti
- 👤 You Kusama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:41
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/12; G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/79; B05D2203/00; B05D2203/22; B05D2507/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24554
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
61 words
A method for producing a photographic support material, which comprises extrusion-coating a polyolefin resin over a pattern embossed on a base paper material and pressing the polyolefin resin coating onto the embossed paper with a cooling roll to form an embossed polyolefin-coated paper, said cooling roll having a surface finish to impart a desired amount of gloss to the embossed surface.
Claim 2
Independent Claim
61 words
A method for producing a photographic support material, which comprises extrusion-coating a polyolefin resin over a pattern embossed on a base paper material and pressing the polyolefin resin coating onto the embossed paper with a cooling roll to form an embossed polyolefin-coated paper, said cooling roll having a surface finish to impart a desired amount of gloss to the embossed surface.
Claim 3
Dependent Claim
12 words
A method according to claim 1, wherein the polyolefin resin is polyethylene.
Claim 4
Dependent Claim
13 words
A method according to claim 1, wherein the pattern is a silk-like pattern.
Claim 5
Dependent Claim
17 words
A method according to claim 3, wherein the thickness of the polyolefin coating is 10 to 25μ.
Claim 6
Dependent Claim
15 words
A method according to claim 1, wherein the base paper material is a plain paper.
Claim 7
Dependent Claim
21 words
A method according to claim 1, wherein the depth of the pattern on the base paper material is 20 to 50μ.
Claim 8
Dependent Claim
16 words
A method according to claim 1, wherein the base paper material is a pigment coated paper.
Claim 9
Dependent Claim
15 words
A method according to claim 7, wherein the pigment coated paper is a baryta paper.
Claim 10
Dependent Claim
28 words
A method according to claim 1 including the step of embossing the base paper by means of an embossing roll prior to the extrusion of the polyolefin resin.
Claim 11
Dependent Claim
15 words
A method according to claim 1 wherein the cooling roll has a matte surface finish.
Claim 12
Dependent Claim
15 words
A method according to claim 1 wherein the cooling roll has a mirror surface finish.
Claim 13
Dependent Claim
12 words
A photographic support material produced by the method according to claim 1.
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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |