US4030955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacture decorative laminate to provide glue adherable back surface
Assignee: MCBEE TECHNOGRAPHICS Inc A CORP OF MASSACHUSETTS
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Filing: 1974-11-05
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Granted: 1977-06-21
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Expires: 1994-11-05
Abstract
Abstract A heat and pressure consolidated laminate in which the back most sheet has fused thereto a surface film composition of polyvinyl alcohol, animal glue or starch which serves a glue line to which conventional glues adhere, the film being adhered to the back most sheet during heat pressure consolidation of the laminate by transferring the same from a release layer to the back most surface of the laminate and fusing the transferred film to the thermosetting resin impregnated in the back sheet.
Inventors
- 👤 Christo Antonio
- 👤 Wyman F. Uhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:18
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/68; B32; B32B; B32B7/00; B32B7/04; B32B7/06; B29C37/00; B29C37/0025; B29C37/0028; B29C37/0032; B29C37/0067; B29C37/0075; B32B27/00; B32B27/32; B32B37/00; B32B37/12; B32B37/1207; B32B37/14; B32B37/26; B32B7/12; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; B29C2037/0042; B29C43/00; B29L; B29L2009/00; B29L2031/00; B29L2031/722; B32B2260/00; B32B2260/04; B32B2260/046; B32B2323/00; B32B2323/10; B32B2331/00; B32B2331/04; B32B2451/00; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
111 words
A process for forming a laminate comprising the steps of assembling a plurality of superimposed plies of thermosetting resin impregnated sheets between heated platens, placing a release medium between the heated platens and adjacent the back surface of the bottom most ply of said sheets, transferring a glueable coating from said release medium to said back surface while consolidating said assembly by applying heat and pressure through said heated platens and applying sufficient heat to cure said resin thereby firmly anchoring said glueable coating to said bottom-most ply, said glueable coating being formed of a substance including a material selected from the group consisting of polyvinyl alcohol, animal glue and starch.
Claim 2
Dependent Claim
111 words
A process for forming a laminate comprising the steps of assembling a plurality of superimposed plies of thermosetting resin impregnated sheets between heated platens, placing a release medium between the heated platens and adjacent the back surface of the bottom most ply of said sheets, transferring a glueable coating from said release medium to said back surface while consolidating said assembly by applying heat and pressure through said heated platens and applying sufficient heat to cure said resin thereby firmly anchoring said glueable coating to said bottom-most ply, said glueable coating being formed of a substance including a material selected from the group consisting of polyvinyl alcohol, animal glue and starch.
Claim 3
Dependent Claim
58 words
A process as defined by claim 1 comprising a second assembly of a plurality of superimposed plies of thermosetting resin impregnated sheets, placing said second assembly back to back with said first mentioned assembly with said release medium therebetween and transferring a second glueable coating to the back surface of said second assembly during heat and pressure consolidation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |