US3716440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a resinous decorative laminate having a lustrous pattern of really metallic surface
Assignee: Ilrigawa Electric Ind Co Ltd
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Filing: 1970-12-29
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Granted: 1973-02-13
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Expires: 1990-12-29
Abstract
Abstract A novel resinous decorative laminate having a surface look of really metallic luster, such as that of gold or silver, is made by hot-pressing an assembly of laminated materials which consists of a sheet of paper pattern impregnated therethrough with a thermosetting resin and having a pattern printed thereon by the use of a printing ink containing a metal powder and a resinous vehicle, and several basic layer materials impregnated with a thermosetting resin. There is no ordinary overlay paper used in forming the decorative laminate.
Inventors
- 👤 K Sugiyama
- 👤 F Ando
- 👤 H Kitahama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:20
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; B32B29/00; B32B29/02; B32B38/00; B32B38/14; B32B38/145; B44F; B44F9/00; B44F9/10; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/028; B32B2260/04; B32B2260/046; B32B2451/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
183 words
A method of preparing a resinous decorative laminate having a surface presenting a lustrous metallic appearance which comprises: a. stacking together in a pile a plurality of fibrous sheets impregnated throughout with thermosetting resin selected from the group consisting of melamine resin, urea resin and phenolic resin, b. impregnating a paper throughout with thermosetting resin selected from the group consisting of melamine resin, urea resin and phenolic resin, c. printing a decorative pattern on the paper obtained from step ''''b'''' with ink made of a mixture of metal powder, an ink vehicle consisting of resin selected from the group consisting of melamine resin, urea resin, benzoguanamine resin, acetoguanamine resin, diacrylphthalate resin, and cellulose acetate resin, a diluent for said resin and a viscosity increasing agent, d. applying the printed paper from step ''''c'''' on the top of the pile of fibrous sheets from step ''''a'''' in such a manner that the printed surface forms the top surface of the resulting assembly, e. hot pressing and curing the assembly resulting from step ''''d, '''' and f. cooling the cured laminate prepared in step ''''e.''''
Claim 2
Independent Claim
183 words
A method of preparing a resinous decorative laminate having a surface presenting a lustrous metallic appearance which comprises: a. stacking together in a pile a plurality of fibrous sheets impregnated throughout with thermosetting resin selected from the group consisting of melamine resin, urea resin and phenolic resin, b. impregnating a paper throughout with thermosetting resin selected from the group consisting of melamine resin, urea resin and phenolic resin, c. printing a decorative pattern on the paper obtained from step ''''b'''' with ink made of a mixture of metal powder, an ink vehicle consisting of resin selected from the group consisting of melamine resin, urea resin, benzoguanamine resin, acetoguanamine resin, diacrylphthalate resin, and cellulose acetate resin, a diluent for said resin and a viscosity increasing agent, d. applying the printed paper from step ''''c'''' on the top of the pile of fibrous sheets from step ''''a'''' in such a manner that the printed surface forms the top surface of the resulting assembly, e. hot pressing and curing the assembly resulting from step ''''d, '''' and f. cooling the cured laminate prepared in step ''''e.''''
Claim 3
Dependent Claim
32 words
The method according to claim 1 wherein the decorative pattern paper used in the step (d) is printed on both sides thereof with perfect registration of both surface patterns to each other.
References Cited (Backward Citations)
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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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |