US5130189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imagable copy film
Assignee: Imperial Chemical Industries Ltd
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Filing: 1990-07-12
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Granted: 1992-07-14
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Expires: 2010-07-12
Abstract
Abstract An imagable copy film comprises a film substrate of a thermoplastics polymeric material with a percentage thermal expansion in the film widthwise direction (TD) at 150° C. of 0.01 to 1.0%, and a percentage thermal shrinkage in the film lengthwise direction (MD) at 150° C. of 0.4 to 2.0%. The substrate has a receiving layer on at least one surface thereof, comprising an acrylic and/or methacrylic resin.
Inventors
- 👤 Charles R. Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:22
CPC Classifications
G; G03; G03G; G03G5/00; G03G7/00; G03G7/006; G03G7/0006; G03G7/002; G03G7/0026; G03G7/004; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/25; Y10T428/259; Y10T428/31504; Y10T428/31507; Y10T428/31533; Y10T428/31725; Y10T428/31779; Y10T428/31783; Y10T428/31786; Y10T428/3179; Y10T428/31797; Y10T428/31801; Y10T428/31804; Y10T428/31808; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
65 words
An imagable copy film comprising a film substrate of a thermoplastic polymeric material with a percentage thermal expansion in the film widthwise direction (TD) at 150° C. of 0.1 to 1.0% and a percentage thermal shrinkage in the film lengthwise direction (MD) at 150° C. of 0.4 to 2.0%, having, on at least one surface thereof a receiving layer comprising an acrylic and/or methacrylic resin.
Claim 2
Dependent Claim
65 words
An imagable copy film comprising a film substrate of a thermoplastic polymeric material with a percentage thermal expansion in the film widthwise direction (TD) at 150° C. of 0.1 to 1.0% and a percentage thermal shrinkage in the film lengthwise direction (MD) at 150° C. of 0.4 to 2.0%, having, on at least one surface thereof a receiving layer comprising an acrylic and/or methacrylic resin.
Claim 3
Dependent Claim
46 words
A copy film according to claim 1 wherein the substrate has a percentage thermal expansion in the film widthwise direction (TD) at 150° C. of 0.2 to 0.8%, and a percentage thermal shrinkage in the film lengthwise direction (MD) at 150° C. of 0.5 to 1.5%.
Claim 4
Dependent Claim
20 words
A copy film according to claim 2 wherein the acrylic resin comprises a terpolymer of methyl methacrylate/ethyl acrylate/acrylamide or methacrylamide.
Claim 5
Dependent Claim
16 words
A copy film according to claim 1 comprising a finely-divided particulate material in the receiving layer.
Claim 6
Dependent Claim
13 words
A copy film according to claim 4 wherein the particulate material comprises silica.
Claim 7
Dependent Claim
20 words
A copy film according to claim 1 comprising a backing paper bonded to a non-imaged surface of the film substrate.
Claim 8
Dependent Claim
15 words
A copy film according to claim 1 comprising a wax layer on the receiving layer.
Claim 9
Dependent Claim
18 words
A copy film according to claim 1 wherein the substrate comprises a biaxially oriented film of polyethylene terephthalate.
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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |