US4104103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making cork wall covering
Assignee: Individual
•
Filing: 1977-03-04
•
Granted: 1978-08-01
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Expires: 1997-03-04
Abstract
Abstract A cork wall covering includes a sheet of cork sandwiched between and adhesively secured to a backing material on one side and a polymerized vinyl resin material on the opposite or facing side.
Inventors
- 👤 John A. Tarullo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:34
CPC Classifications
B; B32; B32B; B32B9/00; B32B9/04; B32B9/047; B32B9/02; B32B27/00; B32B27/30; B32B27/304; B32B7/00; B32B7/04; B32B7/12; B32B9/045; B32B9/06; C; C09; C09J; C09J5/00; C09J5/06; E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0875; B32B2309/00; B32B2309/08; B32B2309/10; B32B2309/105; B32B2607/00; B32B2607/02; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249962; Y10T428/249964; Y10T428/249965; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31511; Y10T428/31551; Y10T428/31573; Y10T428/31576; Y10T428/3158; Y10T428/31591; Y10T428/3167; Y10T428/31786; Y10T428/3179; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31909; Y10T428/31928; Y10T428/31971; Y10T428/31993; Y10T428/4935; Y10T428/662; Y10T442/00; Y10T442/30; Y10T442/3854; Y10T442/387; Y10T442/3927
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
164 words
A process of making a cork wall covering comprising the steps of: (a) placing a sheet of backing material onto one side of a sheet of cork with a thermoplastic adhesive being disposed therebetween; (b) adhering said backing material to said sheet of cork to form a two-ply sheet by subjecting said material to preselected temperature and pressure for a preselected period of time; (c) flexing said sheet of cork and backing material by stress relieving sequentially each side of said two-ply sheet; (d) coating the opposite side of said cork sheet with a mixture of a polyester resin adhesive and a curing agent for said polyester resin; (e) placing a sheet of facing material onto said side of cork sheet including said polyester resin adhesive; (f) adhering said facing material to said cork to form a three-ply sheet by subjecting said material to preselected temperature and pressure for a preselected period of time; and, (g) cooling said three-ply sheet to a preselected temperature.
Claim 2
Dependent Claim
164 words
A process of making a cork wall covering comprising the steps of: (a) placing a sheet of backing material onto one side of a sheet of cork with a thermoplastic adhesive being disposed therebetween; (b) adhering said backing material to said sheet of cork to form a two-ply sheet by subjecting said material to preselected temperature and pressure for a preselected period of time; (c) flexing said sheet of cork and backing material by stress relieving sequentially each side of said two-ply sheet; (d) coating the opposite side of said cork sheet with a mixture of a polyester resin adhesive and a curing agent for said polyester resin; (e) placing a sheet of facing material onto said side of cork sheet including said polyester resin adhesive; (f) adhering said facing material to said cork to form a three-ply sheet by subjecting said material to preselected temperature and pressure for a preselected period of time; and, (g) cooling said three-ply sheet to a preselected temperature.
Claim 3
Dependent Claim
28 words
The process of claim 1 wherein said preselected temperature is from about 200° F to 300° F and said preselected pressure is from about 175 to 250 psi.
Claim 4
Dependent Claim
39 words
The process of claim 2 wherein said adhering of said backing material to said cork is from about five to ten minutes and said adhering of said facing material to said cork is from about ten to twenty minutes.
Claim 5
Dependent Claim
34 words
The process of claim 1 wherein a thermoplastic adhesive is coated to said sheet of backing material prior to placing said sheet of backing material onto said one side of said sheet of cork.
Claim 6
Dependent Claim
33 words
The process of claim 1 wherein a thermoplastic adhesive is coated to said sheet of cork prior to placing said sheet of backing material onto said side of cork having said adhesive thereon.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein said thermoplastic adhesive is polyvinyl acetate.
Claim 8
Dependent Claim
16 words
The process of claim 1 wherein said curing agent for said polyester resin includes a poly-isocyanate.
Claim 9
Dependent Claim
19 words
The process of claim 1 wherein said cork material is from about 0.006 to about 0.040 inches in thickness.
Claim 10
Dependent Claim
30 words
The process of claim 1 wherein said facing material is a polymerized vinyl film selected from the group consisting of vinylchloride-vinyl acetate copolymers, polylower-alkyl acrylates, polylower-alkyl methacrylates, and copolymers thereof.
Claim 11
Dependent Claim
12 words
The process of claim 1 wherein said facing material is polyvinyl chloride.
Claim 12
Dependent Claim
11 words
The process of claim 1 wherein said backing material is paper.
Claim 13
Dependent Claim
11 words
The process of claim 1 wherein said backing material is cloth.
Claim 14
Dependent Claim
18 words
The process of claim 1 wherein said facing material is from about 0.005 to 0.010 inches in thickness.
Claim 15
Dependent Claim
18 words
The process of claim 1 wherein said backing material is from about 0.005 to 0.008 inches in thickness.
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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) | 1981-07-31 | 1982-01-30 | 1982-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-31 | 1986-01-30 | 1986-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-31 | 1990-01-30 | 1990-08-01 | $7700.00 | Window Closed / Lapsed |