Patent US3808024A successfully refreshed from Google Patents.
US3808024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embossed surface covering having enhanced three-dimensional effect
Assignee: Armstrong World Industries Inc
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Filing: 1972-02-24
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Granted: 1974-04-30
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Expires: 1992-02-24
Abstract
Abstract Process of making a decorative surface covering by applying a first printing to a suitable backing followed by coating the printed backing with a transparent (after fusion), resinous coat. A second printing is applied to the transparent coating, the printing composition containing a blowing agent that will penetrate into the transparent coating. On subsequent fusion and decomposition of the blowing agent, raised cellular areas occur in regions where the blowing agent composition was printed.
Inventors
- 👤 J Witman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:00
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; B32B38/00; B32B38/14; B32B38/145; B32B5/20; D; D06; D06N; D06N3/00; D06N3/0056; D06N3/0065; D06N7/00; D06N7/0005; D06N7/0007; D06N7/0013; B32B2607/00; B32B2607/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24736; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24917; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
15 words
The process according to claim 1 having a top clear coat overlying said second design.
Claim 2
Dependent Claim
14 words
The process according to claim 1 wherein said blowing agent comprises finely divided azodicarbonamide.
Claim 3
Dependent Claim
14 words
The process according to claim 1 in which said penetration is about 50 percent.
Claim 4
Dependent Claim
148 words
The process of forming an embossed decorative surface covering comprising printing a first design on a backing, coating the printed backing to form a transparent film of plasticized poly(vinyl chloride) resin, having a thickness in the range of about 2-10 mils, printing a second design on the transparent film with a printing composition containing azodicarbonamide and an activator therefor, said composition adapted to penetrate said transparent film a distance of 10-90 percent of the thickness of said film, aging the azodicarbonamide printed sheet to achieve said penetration, coating the printed and aged system with a clear coat to yield a cured clear coat film thickness in the range of about 2-15 mils, and heating the resulting sheet to a temperature in the range of about 350*-400* F. to fuse any unfused vinyl resins and decompose said azodicarbonamide to form cellular structures in the areas printed with the azodicarbonamide.
Claim 5
Dependent Claim
95 words
An embossed decorative surface covering comprising a backing, a first printing on said backing, a transparent film of plasticized vinyl chloride resin having a thickness in the range of about 2-10 mils covering said first printing and fused to the printed backing, and a second printing on said transparent film having a cellular structure raised above the surface of the non-cellular structure of said transparent film and extending a distance of 10-90 percent into said transparent film whereby the eye can see under and around the raised areas of cellular structure in the transparent film.
Claim 6
Dependent Claim
15 words
The product according to claim 6 having a top clear layer overlying said cellular structure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |