Patent US4273820A successfully refreshed from Google Patents.
US4273820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embossed sheet type covering material
Assignee: Tarkett AB
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Filing: 1976-08-05
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Granted: 1981-06-16
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Expires: 1996-08-05
Abstract
Abstract Decorative sheet type material and process for making same. The material comprises a substrate, an embossed foamed plastic layer, a translucent layer having raised portions corresponding to embossed portions of the embossed layer and preferably a wear layer. The process involves forming an embossed foamed plastic layer on a substrate, covering the embossed layer with a layer of heat curable translucent plastic and then heating the materials sufficiently to cure the translucent plastic and also to allow embossed portions of the embossed layer to partially expand to create raised portions of the translucent layer corresponding to embossed areas of the embossed layer.
Inventors
- 👤 William F. Swietzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:29
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0007; D06N7/001; D06N7/0013; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
81 words
A process for making decorative sheet type covering material comprising the steps of: (a) forming an embossed foamed plastic layer adhered to a substrate; (b) subsequently covering said embossed layer with a layer of heat curable, translucent plastic; and (c) heating the material sufficiently to cure said layer of translucent plastic and to allow embossed portions of the embossed layer to partially expand to form raised portions in the layer of translucent plastic corresponding to embossed portions of the embossed layer.
Claim 2
Dependent Claim
81 words
A process for making decorative sheet type covering material comprising the steps of: (a) forming an embossed foamed plastic layer adhered to a substrate; (b) subsequently covering said embossed layer with a layer of heat curable, translucent plastic; and (c) heating the material sufficiently to cure said layer of translucent plastic and to allow embossed portions of the embossed layer to partially expand to form raised portions in the layer of translucent plastic corresponding to embossed portions of the embossed layer.
Claim 3
Dependent Claim
15 words
A process according to claim 1 in which the embossed foamed layer is mechanically embossed.
Claim 4
Dependent Claim
13 words
A process according to claim 1 in which the translucent layer is pigmented.
Claim 5
Dependent Claim
56 words
A process according to claim 1 in which, prior to step (c) of claim 1, the translucent layer is gelled and a clear wear layer is applied over the translucent layer, said wear layer comprising a layer of polyurethane or a layer of PVC plastisol or organosol and said wear layer being cured during step (c).
Claim 6
Dependent Claim
21 words
A process according to claim 1 in which, the foamed layer and the translucent layer each comprises polyurethane or vinyl resin.
Claim 7
Dependent Claim
15 words
A process according to claim 1 in which, the substrate comprises felt coated with latex.
Claim 8
Dependent Claim
31 words
A process according to claim 1 in which, the translucent layer has a thickness ranging from a minimum of at least about 2 mils to a maximum of about 50 mils.
Claim 9
Dependent Claim
43 words
A process according to claim 1 in which the unembossed portions of the foamed layer have a density between about 0.25 and about 0.8 g/cm 3 and the embossed areas thereof form depressions in the finished products at least about 2 mils deep.
Claim 10
Dependent Claim
12 words
Decorative sheet type covering material produced by the process of claim 1.
Claim 11
Dependent Claim
44 words
Decorative sheet type covering material comprising: (a) a substrate; (b) an embossed, foamed plastic layer adhered to said substrate; and (c) a translucent, heat cured plastic layer adhered to said embossed layer and having raised portions corresponding to embossed portions of the embossed layer.
Claim 12
Dependent Claim
44 words
Decorative sheet type covering material comprising: (a) a substrate; (b) an embossed, foamed plastic layer adhered to said substrate; and (c) a translucent, heat cured plastic layer adhered to said embossed layer and having raised portions corresponding to embossed portions of the embossed layer.
Claim 13
Dependent Claim
13 words
Material according to claim 10 in which the embossed layer is mechanically embossed.
Claim 14
Dependent Claim
12 words
Material according to claim 10 in which the translucent layer is pigmented.
Claim 15
Dependent Claim
21 words
Material according to claim 10 in which the foamed plastic layer and the translucent layer each comprise polyurethane or vinyl resin.
Claim 16
Dependent Claim
26 words
Material according to claim 13 and also including a wear layer adhered to the translucent layer, said wear layer comprising polyurethane or PVC plastisol or organosol.
Claim 17
Dependent Claim
19 words
Material according to claim 10 in which the translucent layer comprises pigmented polyurethane or pigmented PVC plastisol or organosol.
Claim 18
Dependent Claim
27 words
Material according to claim 10 in which the density of the unembossed portions of the embossed layer is between about 0.25 and about 0.8 g/cm 3 .
Claim 19
Dependent Claim
66 words
Material according to claim 10 in which the depressions formed by the embossed portions of the embossed layer are between about 2 and about 25 mils deep and the raised portions of the translucent layer extends between about 2 and about 25 mils above the remainder of the translucent layer with the translucent layer having a minimum height above such unembossed portions of about 2 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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |