Patent US3616028A successfully refreshed from Google Patents.
US3616028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of bonding resin-impregnated overlay material to a coated substrate material utilizing high-energy radiation
Assignee: Weyerhaeuser Co
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Filing: 1967-04-04
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Granted: 1971-10-26
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Expires: 1987-04-04
Abstract
Abstract A method of simultaneously bonding and curing an impregnated overlay material of, particularly wood veneer, to a substrate material by thoroughly impregnating the overlay material with a polymerizable monomer or polymer dissolved in monomer, bringing the overly into contact with the substrate material previously coated on the surface to be contacted with a bonding material, and exposing the resulting product to high-energy radiation.
Inventors
- 👤 Lewis S Miller
- 👤 Fraidoun Shafizadeh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:33
CPC Classifications
B; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; B44C5/0484; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1712; B44C5/0492; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
22 words
Method according to claim 1 wherein the impregnant is selected from the group consisting of acrylate esters, unsaturated polyesters, and vinyl esters.
Claim 2
Dependent Claim
15 words
Method according to claim 1 wherein the bonding material is the same as the impregnant.
Claim 3
Dependent Claim
17 words
Method according to claim 1 wherein the high-energy radiation ranges from about 20,000 to 10,000,000 electron volts.
Claim 4
Dependent Claim
11 words
Method according to claim 1 wherein the overlay is wood veneer.
Claim 5
Dependent Claim
10 words
Method according to claim 1 wherein the overlay is paper.
Claim 6
Independent Claim
158 words
A method of simultaneously bonding and curing an impregnated wood veneer overlay to a substrate material which comprises: a. impregnating a wood veneer having a thickness ranging from 5 to 50 mils. with an impregnant selected from the group consisting of acrylate esters, unsaturated polyesters, and vinyl esters, b. bringing the impregnated veneer into contact with a substrated material coated on the surface to be contacted with a bonding material curable or polymerizable by high-energy radiation and having a viscosity sufficient to prevent rapid absorption into the substrate material, the contact pressure ranging from about 10 to 200 p.s.i. and deployed in a way so as not to block high-energy radiation directed at the substrate and overlay, and while under pressure, c. exposing the resulting product to high-energy electrons ranging from 20,000 to 10,000,000 electron volts to bond the veneer overlay to the substrate material, cure said impregnant, and form on the overlay surface a solid polymer coating.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |