US3887409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl structure having an embossed top layer and a foam base
Assignee: Armstrong World Industries Inc
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Filing: 1972-12-07
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Granted: 1975-06-03
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Expires: 1992-12-07
Abstract
Abstract A vinyl structure is made by a specific technique which yields an embossed top layer and a foam base. The embossed top layer is made of a material which fuses and which is embossable at a lower temperature than the base foam. After the two layers are formed, the product is heated to a point which will soften the top layer, but not the foam base and consequently embossing will affect only the top layer.
Inventors
- 👤 Willard E Mccreary
- 👤 Elvin M Weidman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:34
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/5627; B29C44/5636; B29C59/00; B29C59/02; B29C59/026; D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0007; D06N7/001; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
THE TECHNIQUE FOR FORMING AN EMBOSSED TWO-LAYER PLASTISOL SHEET MATERIAL COMPRISING THE STEPS OF DEPOSITING A FIRST FOAMABLE PLASTISOL MATERIAL ON A CARRIER STRUCTURE, DEPOSITING A SECOND EMBOSSABLE PLASTICOL MATERIAL OF SUBSTANTIALLY THE SAME COMPOSITION AS THE FIRST PLASTISOL LAYER OVER TOP OF THE FIRST PLASTISOL LAYER, SAID SECOND PLASTISOL LAYER HAVING A LOWER TEMPERATURE FUSING POINT THAN SAID FIRST PLASTISOL LAYER, HEATING BOTH LAYERS TO A TEMPERATURE ABOVE THE FUSING TEMPERATURE OF THE FIRST PLASTISOL LAYER TO FUSE BOTH PLASTISOL LAYERS AND TO FOAM THE FOAMABLE LAYER, COOLING BOTH LAYERS AND THEN REHEATING JUST THE SECOND PLASTISOL LAYER TO A TEMPERATURE OF ABOUT 300*F WHICH IS APPROXIMATELY THE FUSING TEMPERATURE OF SAID SECOND PLASTISOL LAYER AND WHICH IS ABOUT 100*F BELOW THE FUSING TEMPERATURE OF SAID FIRST PLASTISOL LAYER AND EMBOSSING JUST THE SECOND PLASTISOL LAYER.
Claim 2
Dependent Claim
137 words
THE TECHNIQUE FOR FORMING AN EMBOSSED TWO-LAYER PLASTISOL SHEET MATERIAL COMPRISING THE STEPS OF DEPOSITING A FIRST FOAMABLE PLASTISOL MATERIAL ON A CARRIER STRUCTURE, DEPOSITING A SECOND EMBOSSABLE PLASTICOL MATERIAL OF SUBSTANTIALLY THE SAME COMPOSITION AS THE FIRST PLASTISOL LAYER OVER TOP OF THE FIRST PLASTISOL LAYER, SAID SECOND PLASTISOL LAYER HAVING A LOWER TEMPERATURE FUSING POINT THAN SAID FIRST PLASTISOL LAYER, HEATING BOTH LAYERS TO A TEMPERATURE ABOVE THE FUSING TEMPERATURE OF THE FIRST PLASTISOL LAYER TO FUSE BOTH PLASTISOL LAYERS AND TO FOAM THE FOAMABLE LAYER, COOLING BOTH LAYERS AND THEN REHEATING JUST THE SECOND PLASTISOL LAYER TO A TEMPERATURE OF ABOUT 300*F WHICH IS APPROXIMATELY THE FUSING TEMPERATURE OF SAID SECOND PLASTISOL LAYER AND WHICH IS ABOUT 100*F BELOW THE FUSING TEMPERATURE OF SAID FIRST PLASTISOL LAYER AND EMBOSSING JUST THE SECOND PLASTISOL LAYER.
References Cited (Backward Citations)
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US3196030A
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US3305419A
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |