US4259386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible wallcoverings
Assignee: Reed International Ltd
•
Filing: 1980-04-29
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Granted: 1981-03-31
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Expires: 2000-04-29
Abstract
Abstract A flexible wallcovering is made by applying a foamable composition (13) to a woodchip paper (12, 14) having woodchips defining a relief surface on the paper by a screen printing process and then foaming the composition. Preferably, the wallcovering is of two ply construction with a woodchip content between the plies and the paper is formulated so that the upper ply is dry removable from the lower ply. The woodchips are at least 2 mm in average length; and the woodchips form 20 to 35% by weight of the paper.
Inventors
- 👤 Eric C. Wagstaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:26
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/04; B32B21/08; B32B27/00; B32B27/06; B32B27/10; B32B21/02; B32B5/00; B32B5/18; B44; B44C; B44C1/00; B44C1/20; B44C1/205; D; D21; D21H; D21H27/00; D21H27/18; D21H27/20; B32B2607/00; B32B2607/02; D21H21/00; D21H21/50; D21H21/52; D21H27/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24802; Y10T428/24934; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/25; Y10T428/253
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
17 words
A flexible wallcovering comprising a woodchip paper substrate having a coating of a foamed polymeric composition thereon.
Claim 2
Dependent Claim
17 words
A flexible wallcovering comprising a woodchip paper substrate having a coating of a foamed polymeric composition thereon.
Claim 3
Dependent Claim
46 words
A wallcovering as claimed in claim 1 in which the substrate has 20-35% by weight of woodchips some of which provide a relief on at least one surface thereof and the foamed polymeric composition is on said surface and has both a blistered and textured appearance.
Claim 4
Dependent Claim
20 words
A wallcovering as claimed in claim 2 in which the substrate has two plies with woodchips in between the plies.
Claim 5
Independent Claim
67 words
A method of making a flexible wallcovering comprising a substrate having a coating of a foamed thermoplastic polymeric composition thereon characterised in that the substrate is a woodchip paper chosen to have a relief surface defined by woodchips and in that a foamable composition having a binder is applied to said relief surface by a screen printing process and then heated to cause the composition to foam.
Claim 6
Independent Claim
67 words
A method of making a flexible wallcovering comprising a substrate having a coating of a foamed thermoplastic polymeric composition thereon characterised in that the substrate is a woodchip paper chosen to have a relief surface defined by woodchips and in that a foamable composition having a binder is applied to said relief surface by a screen printing process and then heated to cause the composition to foam.
Claim 7
Dependent Claim
38 words
A method of making a wallcovering according to claim 4 in which the woodchips defining the relief surface have an average maximum dimension of at least 2 mm and form 20 to 35% by weight of the paper.
Claim 8
Dependent Claim
30 words
A method of making a wallcovering according to claim 5 in which the average length of the woodchips is at least twice the average width and twice the average thickness.
Claim 9
Dependent Claim
34 words
A method making a wallcovering according to claim 4 in which, in the areas to which the foamable composition is applied, the amount of binder material applied is at least 90 g/m 2 .
Claim 10
Dependent Claim
25 words
A method of making a wallcovering according to claim 4 in which the substrate is given an overall protection coat before applying the foamable composition.
References Cited (Backward Citations)
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US3790421A
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |