Patent US3956530A successfully refreshed from Google Patents.
US3956530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making chemically embossed surface coverings
Assignee: Armstrong World Industries Inc
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Filing: 1974-11-19
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Granted: 1976-05-11
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Expires: 1994-11-19
Abstract
Abstract A process of making a decorative surface covering by preparing a granular resinous dryblend containing both a polymerizable monomer, compatible with the resin, and having at least two olefinically unsaturated sites, and, a polymerization catalyst for the monomer, depositing a layer of the dryblend on a backing, heating the granules to form a porous, cohesive layer therefrom, cooling the layer, and printing a decorative design on the porous layer with a printing composition containing a polymerization inhibitor which will penetrate into the porous composition. Heat and/or heat and pressure is applied to fuse the resinous granules and polymerize the monomer throughout those areas not printed with the inhibitor composition. A non-porous layer containing a printed design having an embossed resinous surface is formed wherein those areas of the surface that have not had applied thereto the polymerization inhibitor composition are coarsely textured and elevated above those areas that have been printed with the polymerization inhibitor composition and which appear as smooth, glossy, valley areas in perfect registration with the decorative design.
Inventors
- 👤 Allan W. McKee, Jr.
- 👤 Jack H. Witman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:06
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0007; D06N7/0013
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
165 words
The process of forming a textured, embossed decorative surface covering which comprises preparing a dryblend containing a. a vinyl resin, b. a plasticizer for said vinyl resin, c. a polymerizable monomer, compatible with the plasticized vinyl resin, said monomer containing at least two olefinically unsaturated sites, and, capable of addition polymerization at a temperature in the range of about 300° to 400°F in the presence of an addition polymerization catalyst, and d. a catalyst that will cause polymerization of said monomer in said temperature range, depositing a layer of the dryblend on a backing, heating to form an unfused porous cohesive layer from said dryblend, applying to said porous layer in a predetermined pattern a printing composition containing a polymerization inhibitor that will prevent polymerization of said monomer in said temperature range, and heating the resulting layer to said temperature range to fuse the resinous dryblend, and polymerize and cross-link said monomer in those portions of said dryblend not printed with said inhibitor-containing printing composition.
Claim 2
Dependent Claim
165 words
The process of forming a textured, embossed decorative surface covering which comprises preparing a dryblend containing a. a vinyl resin, b. a plasticizer for said vinyl resin, c. a polymerizable monomer, compatible with the plasticized vinyl resin, said monomer containing at least two olefinically unsaturated sites, and, capable of addition polymerization at a temperature in the range of about 300° to 400°F in the presence of an addition polymerization catalyst, and d. a catalyst that will cause polymerization of said monomer in said temperature range, depositing a layer of the dryblend on a backing, heating to form an unfused porous cohesive layer from said dryblend, applying to said porous layer in a predetermined pattern a printing composition containing a polymerization inhibitor that will prevent polymerization of said monomer in said temperature range, and heating the resulting layer to said temperature range to fuse the resinous dryblend, and polymerize and cross-link said monomer in those portions of said dryblend not printed with said inhibitor-containing printing composition.
Claim 3
Dependent Claim
26 words
The process according to claim 1 including the step of depositing a plastisol coating on the surface of the backing prior to deposition of the dryblend.
Claim 4
Dependent Claim
14 words
The process according to claim 2 wherein the plastisol coating is a filled plastisol.
Claim 5
Dependent Claim
19 words
The process according to claim 2 including the step of gelling the plastisol prior to deposition of the dryblend.
Claim 6
Dependent Claim
13 words
The process according to claim 1 wherein said vinyl resin comprises poly(vinyl chloride).
Claim 7
Dependent Claim
12 words
The process according to claim 1 wherein said monomer comprises trimethylol propane-trimethyacrylate.
Claim 8
Dependent Claim
24 words
The process according to claim 6 wherein said monomer comprises about 3 to 30% by weight based on the weight of the vinyl resin.
Claim 9
Dependent Claim
12 words
The process according to claim 1 wherein said catalyst comprises lauroyl peroxide.
Claim 10
Dependent Claim
12 words
The process according to claim 1 wherein said catalyst comprises benzoyl peroxide.
Claim 11
Dependent Claim
36 words
The process according to claim 1 wherein said printing composition comprises a. a liquid that will penetrate said porous layer, and b. a polymerization inhibitor that will prevent polymerization of said monomer in said temperature range.
Claim 12
Dependent Claim
22 words
The process according to claim 10 wherein said liquid that will penetrate said porous layer comprises a plasticizer for said vinyl resin.
Claim 13
Dependent Claim
12 words
The process according to claim 10 wherein said polymerization inhibitor comprises hydroquinone.
Claim 14
Dependent Claim
27 words
The process according to claim 10 wherein said printing composition comprises about 2 to 15 parts by weight hydroquinone based on the total weight of the composition.
Claim 15
Dependent Claim
16 words
The process according to claim 10 wherein said printing composition comprises fine powdered granules of hydroquinone.
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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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |