Patent US4177314A successfully refreshed from Google Patents.
US4177314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of printing paper
Assignee: Metallized Products Inc
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Filing: 1978-10-25
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Granted: 1979-12-04
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Expires: 1998-10-25
Abstract
Abstract A printed paper product useful in graphic, packaging and decorating applications is provided by a process of coating a paper substrate with a radiation curable resin precursor, immediately curing the precursor by means of an electron beam to provide a smooth resin film and then printing on the exposed surface of the resin film.
Inventors
- 👤 Robert W. Steeves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:12
CPC Classifications
D; D21; D21H; D21H25/00; D21H25/04; D21H25/06; B; B41; B41M; B41M5/00; B41M5/50; B41M5/502; B41M5/508; B41M5/52; B41M5/5209; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
72 words
The process of printing a modified paper substrate comprising the steps of: (A) coating a surface of a paper substrate with a thin film consisting essentially of a radiation curable resin precursor; (B) immediately contacting said film with electron radiation sufficient to cure said precursor before said precursor has penetrated into said paper substrate a distance sufficient to cause detrimental stiffening thereof; and (C) printing on the exposed surface of said film.
Claim 2
Dependent Claim
72 words
The process of printing a modified paper substrate comprising the steps of: (A) coating a surface of a paper substrate with a thin film consisting essentially of a radiation curable resin precursor; (B) immediately contacting said film with electron radiation sufficient to cure said precursor before said precursor has penetrated into said paper substrate a distance sufficient to cause detrimental stiffening thereof; and (C) printing on the exposed surface of said film.
Claim 3
Dependent Claim
22 words
The process of claim 1 wherein said film is sufficiently thick to cover substantially all fibrous paper material projecting from said surface.
Claim 4
Dependent Claim
22 words
The process of claim 2 wherein said film has a thickness after curing of from about 0.05 mils to about 3.0 mils.
Claim 5
Dependent Claim
27 words
The process of claim 3 wherein said film is cured before penetrating into said paper substrate more than a quarter of the thickness of said paper substrate.
Claim 6
Dependent Claim
20 words
The process of claim 4 wherein said film has imbedded therein, from about 5% to about 25% of paper fibers.
Claim 7
Dependent Claim
20 words
The process of claim 5 wherein said resin precursor has a viscosity of from about 1,000 to about 5,000 centipoise.
Claim 8
Dependent Claim
16 words
The process of claim 6 wherein said viscosity is from about 2,000 to about 3,000 centipoise.
Claim 9
Dependent Claim
16 words
The process of claim 7 wherein said viscosity is from about 2,600 to about 2,700 centipoise.
Claim 10
Dependent Claim
26 words
The process of claim 6 wherein said printing step is carried out with an ink selected from the group consisting of nitrocellulose, polyamide and acrylic inks.
Claim 11
Dependent Claim
21 words
The process of claim 9 wherein said paper substrate has a thickness of from about 2 mils to about 20 mils.
Claim 12
Dependent Claim
74 words
A printed paper product comprising a paper substrate with a smooth continuous, coherent resin film on one side thereof, said film having limited penetration into the paper substrate, being substantially entirely within the adjacent quarter of the paper cross-section thickness, and further comprising fibrous matter of the paper substrate intermixed in said resin film up to 25 percent thereof, at least portions of the outer surface of said resin film being overcoated with ink.
Claim 13
Dependent Claim
74 words
A printed paper product comprising a paper substrate with a smooth continuous, coherent resin film on one side thereof, said film having limited penetration into the paper substrate, being substantially entirely within the adjacent quarter of the paper cross-section thickness, and further comprising fibrous matter of the paper substrate intermixed in said resin film up to 25 percent thereof, at least portions of the outer surface of said resin film being overcoated with ink.
Claim 14
Dependent Claim
19 words
A printed paper product as recited in claim 11 wherein said resin film is a radiation cured resin film.
Claim 15
Dependent Claim
24 words
A printed paper product as recited in claim 12 wherein said ink is selected from the group consisting of nitrocellulose, polyamide and acrylic ink.
Claim 16
Dependent Claim
40 words
A printed paper product as recited in claim 12 wherein said paper substrate has a cross-section thickness of from about 2 to about 20 mils, and said film has a cross-section thickness of from about 0.05 to about 3.0 mils.
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) | 1982-12-03 | 1983-06-04 | 1983-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-03 | 1987-06-04 | 1987-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-03 | 1991-06-04 | 1991-12-04 | $7700.00 | Window Closed / Lapsed |