US4765858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of applying a reacting transfer coating for decorating laminates
Assignee: Warren SD Co
•
Filing: 1987-02-11
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Granted: 1988-08-23
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Expires: 2007-02-11
Abstract
Abstract A transferable film composition coated on a temporary support is used in the manufacture of heat and pressure consolidated laminates to produce laminates of improved surface strength and functional properties. The film is composed of polyvinyl butyral resin and melamine resin which reacts with a resin in the laminates. Additives may be included in the film composition for functional purposes and appearance.
Inventors
- 👤 Henk F. E. Vankerckhoven
- 👤 Eric H. C. DeKoster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:24
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/28; B32B7/00; B32B7/04; B32B7/06; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H23/64; B32B2255/00; B32B2255/02; B32B2255/12; B32B2260/00; B32B2260/02; B32B2260/021; B32B2260/04; B32B2260/046; B32B2329/00; B32B2329/06; B32B2386/00; B32B2451/00; B32B2607/00; B32B2607/02; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/47; D21H17/49; D21H17/51; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31862
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
In a process for preparing a decorative laminate comprising the steps of: (A) stacking together in an assembly (a) one or more resin impregnated core sheets, (b) a decorative fibrous sheet impregnated with a noble thermosetting resin, and (c) a releasing carrier surface coated with a film composition in contact with the decorative fibrous sheet; (B) applying heat and pressure to consolidate the assembly into a unitary structure; and (C) separating the releasing carrier surface from the unitary structure; the improvement wherein said film composition comprises polyvinyl butyral resin and melamine resin which reacts with the noble thermosetting resin of the decorative fibrous sheet during assembly consolidation.
Claim 2
Dependent Claim
107 words
In a process for preparing a decorative laminate comprising the steps of: (A) stacking together in an assembly (a) one or more resin impregnated core sheets, (b) a decorative fibrous sheet impregnated with a noble thermosetting resin, and (c) a releasing carrier surface coated with a film composition in contact with the decorative fibrous sheet; (B) applying heat and pressure to consolidate the assembly into a unitary structure; and (C) separating the releasing carrier surface from the unitary structure; the improvement wherein said film composition comprises polyvinyl butyral resin and melamine resin which reacts with the noble thermosetting resin of the decorative fibrous sheet during assembly consolidation.
Claim 3
Dependent Claim
28 words
The process for preparing a decorative laminate according to claim 1, wherein the film composition coated on the releasing carrier surface further comprises at least one acid catalyst.
Claim 4
Dependent Claim
25 words
The process for preparing a decorative laminate according to claim 1, wherein the film composition coated on the releasing carrier surface further includes an antioxidant.
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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) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |