Patent US4945043A successfully refreshed from Google Patents.
US4587141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated panel and process
Assignee: US PLYWOOD Corp A CORP OF
•
Filing: 1983-12-15
•
Granted: 1986-05-06
•
Expires: 2003-12-15
Abstract
Abstract A decorative panel and process for producing the same are provided. The panel includes a wood base substrate to which an ink imprinted decorative paper is adhered. An isocyanate solution is applied to the decorative paper and is allowed to penetrate into the paper to fortify the inks and paper. The partially completed panel then is subjected to drying to remove the solvent used to transport the isocyanate into the paper. A top coat of a photo-curable material then is applied to the panel, and the panel is subjected to appropriate radiation for curing the top coat.
Inventors
- 👤 James Cooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:46
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; D21H17/08; B; B44; B44C; B44C5/00; B44C5/04; B44C5/043; B44C5/0446; D21H27/00; D21H27/18; D21H27/22; D21H27/26; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/31504; Y10T428/31551; Y10T428/31591
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
148 words
A process for forming a decorative panel comprising the steps of: providing a generally planar substrate of particle board, fiber board, hard board or plywood and an ink imprinted decorative paper; adhering the decorative paper directly to the substrate by applying at least one layer of an adhesive to said substrate, drying said at least one adhesive layer, subsequently reactivating said at least one adhesive layer by heating and joining said decorative paper to said substrate by applying the paper directly over the reactivated adhesive layer; applying 0.5 mils wet to 5.0 mils wet of an isocyanate solution including an organic solvent portion to the decorative paper; allowing the isocyanate solution to penetrate into the decorative paper; drying the decorative paper and panel to remove the solvent portion of the isocyanate solution but allowing the isocyanate to remain; applying a photo-durable top coat; and curing the top coat.
Claim 2
Dependent Claim
148 words
A process for forming a decorative panel comprising the steps of: providing a generally planar substrate of particle board, fiber board, hard board or plywood and an ink imprinted decorative paper; adhering the decorative paper directly to the substrate by applying at least one layer of an adhesive to said substrate, drying said at least one adhesive layer, subsequently reactivating said at least one adhesive layer by heating and joining said decorative paper to said substrate by applying the paper directly over the reactivated adhesive layer; applying 0.5 mils wet to 5.0 mils wet of an isocyanate solution including an organic solvent portion to the decorative paper; allowing the isocyanate solution to penetrate into the decorative paper; drying the decorative paper and panel to remove the solvent portion of the isocyanate solution but allowing the isocyanate to remain; applying a photo-durable top coat; and curing the top coat.
Claim 3
Dependent Claim
24 words
A process as in claim 1 wherein the top coat is cured by infrared energy, ultra violet energy, electron beam radiation or gamma radiation.
Claim 4
Dependent Claim
24 words
A process as in claim 1 wherein the top coat is cured by subjection to ulta violet light for 5 seconds to 15 seconds.
Claim 5
Dependent Claim
19 words
A process as in claim 1 wherein the adhesive is polyurethane, polyester, epoxy, polyvinyl acetate or ethylene vinyl acetate.
Claim 6
Dependent Claim
43 words
A process as in claim 1 wherein the step of applying adhesive to the substrate further comprises the steps of: applying a first adhesive; drying the first adhesive; applying a second adhesive; drying the second adhesive; and reactivating the first and second adhesives.
Claim 7
Dependent Claim
77 words
A process as in claim 5 wherein the first adhesive is urethane applied at a rate of 1.0 to 2.0 grams per square foot and subsequently dried for 8 to 10 seconds at a temperature of 120° F. to 130° F., and wherein the second adhesive is ethylene vinyl acetate applied at a rate of 2.0 to 3.0 grams per square foot and dried for 8 to 10 seconds at a temperature of 130° to 150° F.
Claim 8
Dependent Claim
27 words
A process as in claim 6 wherein the adhesives are reactivated by exposure to intense infrared light to achieve a surface temperature of 160° to 200° F.
Claim 9
Dependent Claim
20 words
A process as in claim 1 wherein the isocyanate solution comprises 5% to 15% by weight of isocyanate in toluene.
Claim 10
Dependent Claim
19 words
A process as in claim 8 wherein the isocyanate solution further comprises 1% to 10% ultra violet light absorbers.
Claim 11
Dependent Claim
21 words
A process as in claim 8 wherein the isocyanate solution is allowed to penetrate the decorative paper for approximately 2 seconds.
Claim 12
Dependent Claim
24 words
A process as in claim 8 wherein the isocyanate solution is applied at a thickness of from 0.5 mils wet to 5.0 mils wet.
Claim 13
Dependent Claim
20 words
A process as in claim 11 wherein the isocyanate solution is applied at a thickness of approximately 2.0 mils wet.
Claim 14
Dependent Claim
52 words
A process as in claim 8 wherein after allowing the isocyanate solution to penetrate the decorative paper, the panel is passed through a high velocity oven at a temperature of 120° F. to 380° F. for a period of 8 seconds to 15 seconds to remove the toluene from the isocyanate solution.
Claim 15
Dependent Claim
18 words
A process as in claim 13 wherein the temperature of the high velocity oven is approximately 280° F.
References Cited (Backward Citations)
US2430479A
Cited
US2897094A
Cited
US2804400A
Cited
US3117019A
Cited
US3198692A
Cited
US3687801A
Cited
US4104432A
Cited
US4355071A
Cited
US4406456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |