Patent US3850673A successfully refreshed from Google Patents.
US3850673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible sheet material
Assignee: Makin J & J Ltd
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Filing: 1972-02-23
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Granted: 1974-11-26
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Expires: 1992-02-23
Abstract
Abstract A readily strippable wall covering which comprises a wall covering sheet including a fibrous backing surface. A material comprising a wax-aluminum-protein-rosin complex in water is disposed on the fibrous backing surface in the form of a plurality of discontinuous portions incompletely covering the fibrous backing surface for reducing the susceptibility of the wall covering to adhere to a wall upon the subsequent application of a water-based adhesive to the material prior to positioning the wall covering on a wall such that the subsequently applied adhesive can be directly applied against the fibrous backing surface between the discontinuous portions, and the amount of the material applied to the fibrous backing surface is within the range of 2 gm/sq. meter to 12 gm/sq. meter to partially reduce a direct bonding between the adhesive and the fibrous backing surface.
Inventors
- 👤 S Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:02
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/18; D21H27/20; C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; D21H17/00; D21H17/60; D21H17/62; D21H21/00; D21H21/14; D21H21/16; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H23/56; D21H23/58; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T428/24934; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808; Y10T428/31844; Y10T428/31848; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
190 words
A READILY STRIPPABLE WALL COVERING COMPRISING A WALL COVERING SHEET INCLUDING A FIBROUS BACKING SURFACE COATED WITH THE DRIED RESIDUE OF AN AQUEOUS DISPERSION COMPRISING A WAX-ALUMINUM-PROTEIN-RESIN COMPLEX IN WATER DISPOSED ON SAID FIBROUS BACKING SURFACE IN THE FORM OF A PLURALITY OF DISCONTINUOUS PORTIONS INCOMPLETELY COVERING SAID FIBROUS BACKING SURFACE BEING ADAPTED TO RECEIVE A WATERBASED ADHESIVE SUCH THAT THE ADHESIVE CAN BE DIRECTLY APPLIED AGAINST SAID FIBROUS BACKING SURFACE BETWEEN SAID DISCONTINUOUS PORTIONS, SAID WAX BEING A PARAFFIN WAX HAVING A MELTING POINT IN THE RANGE BETWEEN 45*C. AND 60*C., THE ALUMINUM COMPONENT BEING AN ALUMINUM SALT OF A LOW MOLECULAR WEIGHT ALIPHATIC CARBOXYLIC ACID, THE PROTEIN BEING AN ACID PROTEIN COLLOID AND SAID ROSIN BEING A NATURAL WOOD ROSIN, THE RATIO BY WEIGHT OF SAID PARAFFIN WAX TO SAID ROSIN BEING FROM 10:1 TO 1:4, THE AMOUNT OF SAID MATERIAL APPLIED TO SAID FIBROUS BACKING SURFACE BEING WITHIN THE RANGE 2 GM/SQ. METER TO 12 GM/SQ. METER TO PARTIALLY REDUCE A DIRECT BONDING BETWEEN SAID ADHESIVE AND SAID FIBROUS BACKING SURFACE, AND THE RESIDUAL MOISTURE CONTENT OF THE FIBROUS SHEET MATERIAL BEING FROM 5 TO 12 PERCENT.
Claim 2
Dependent Claim
190 words
A READILY STRIPPABLE WALL COVERING COMPRISING A WALL COVERING SHEET INCLUDING A FIBROUS BACKING SURFACE COATED WITH THE DRIED RESIDUE OF AN AQUEOUS DISPERSION COMPRISING A WAX-ALUMINUM-PROTEIN-RESIN COMPLEX IN WATER DISPOSED ON SAID FIBROUS BACKING SURFACE IN THE FORM OF A PLURALITY OF DISCONTINUOUS PORTIONS INCOMPLETELY COVERING SAID FIBROUS BACKING SURFACE BEING ADAPTED TO RECEIVE A WATERBASED ADHESIVE SUCH THAT THE ADHESIVE CAN BE DIRECTLY APPLIED AGAINST SAID FIBROUS BACKING SURFACE BETWEEN SAID DISCONTINUOUS PORTIONS, SAID WAX BEING A PARAFFIN WAX HAVING A MELTING POINT IN THE RANGE BETWEEN 45*C. AND 60*C., THE ALUMINUM COMPONENT BEING AN ALUMINUM SALT OF A LOW MOLECULAR WEIGHT ALIPHATIC CARBOXYLIC ACID, THE PROTEIN BEING AN ACID PROTEIN COLLOID AND SAID ROSIN BEING A NATURAL WOOD ROSIN, THE RATIO BY WEIGHT OF SAID PARAFFIN WAX TO SAID ROSIN BEING FROM 10:1 TO 1:4, THE AMOUNT OF SAID MATERIAL APPLIED TO SAID FIBROUS BACKING SURFACE BEING WITHIN THE RANGE 2 GM/SQ. METER TO 12 GM/SQ. METER TO PARTIALLY REDUCE A DIRECT BONDING BETWEEN SAID ADHESIVE AND SAID FIBROUS BACKING SURFACE, AND THE RESIDUAL MOISTURE CONTENT OF THE FIBROUS SHEET MATERIAL BEING FROM 5 TO 12 PERCENT.
Claim 3
Dependent Claim
42 words
A readily-strippable wall covering according to claim 1 wherein the amount of said complex applied to said fibrous backing surface being within the range 3 to 7 gm/sq meter to partially reduce a direct bonding between said adhesive and fibrous backing surface.
Claim 4
Dependent Claim
79 words
The wall covering of claim 1 wherein said wax-aluminum-protein-rosin complex comprises paraffin waxes having melting points falling within the temperature range of 45* to 60*C, a natural wood rosin, an acid protein colloid as emulsion stabilizer, an aluminum salt of range molecular weight aliphatic carboxylic acid, the ratio by weight of said paraffin waxes to resin being from 10:1 to 1:4, said wall covering having a residual moisture content of the fibrous sheet material from 5 to 12 percent.
Claim 5
Dependent Claim
21 words
The wall covering of claim 3 having a residual moisture content of the fibrous sheet material from 8 to 10 percent.
Claim 6
Dependent Claim
20 words
The wall covering of claim 3, wherein the amount of said complex on said fibrous backing averages 5 gm/sq meter.
Claim 7
Dependent Claim
15 words
The wall covering of claim 3, wherein said acid protein colloid is dimerized animal glue.
Claim 8
Dependent Claim
22 words
The wall covering of claim 3, wherein said paraffin waxes used have an oil content of less than 2 percent by weight.
Claim 9
Dependent Claim
26 words
The wall covering of claim 3, wherein said fibrous backing surface contains a sizing means for the latter disposed between the latter and said wax-aluminum-protein-rosin complex.
Claim 10
Dependent Claim
67 words
The wall covering of claim 1 wherein said wax-aluminum-protein-rosin complex comprises paraffin waxes having melting points falling within the temperature range of 45* to 60*C a natural wood rosin, dimerized animal glue as emulsion stabilizer, aluminum formate, the ratio by weight of said paraffin waxes to resin being 1:2, said wall covering having a residual moisture content of the fibrous sheet material from 8 to 10 percent.
Claim 11
Dependent Claim
20 words
The wall covering of claim 9, wherein the amount of said complex on said wall covering averaging 5 gm/sq meter.
Claim 12
Dependent Claim
19 words
The wall covering of claim 9, wherein the backing surface of said fibrous sheet material contains a sizing material.
Claim 13
Dependent Claim
68 words
The wall covering of claim 1 wherein said wax-aluminum-protein-rosin complex comprises paraffin waxes having melting points falling within the temperature range of 45* to 60*C, a natural wood rosin, a dimerized animal glue as emulsion stabilizer, aluminum formate, the ratio by weight of said paraffin waxes to resin being 9:1, said wall covering having a residual moisture content of the fibrous sheet material from 8 to 10 percent.
Claim 14
Dependent Claim
20 words
The wall covering of claim 12, wherein the amount of said complex on said wall covering averages 5 gm/sq meter.
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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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |