US3929545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure laminating method
Assignee: Wilsonart International Inc
•
Filing: 1974-05-23
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Granted: 1975-12-30
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Expires: 1994-05-23
Abstract
Abstract A method for making a decorative pressure laminated article wherein a texturing sheet or a decorative sheet may be used as a carrier for the surface coating resin during manufacture. A novel product is also provided having a relatively heavy polyester or acrylic resin coating.
Inventors
- 👤 Dyck Emil J Van
- 👤 Jerry L Malina
- 👤 Raymond E Schiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:36
CPC Classifications
B; B32; B32B; B32B27/00; B27; B27N; B27N7/00; B27N7/005; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T156/1041; Y10T428/00; Y10T428/24; Y10T428/24479
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
139 words
A METHOD OF MAKING A LAMINATED PRODUCT COMPRISING THE STEPS OF: A. IMPREGNATING A DECORATIVE SHEET WITH A LIQUID THERMOSETTING RESIN; B. DRYING SAID RESIN ON SAID DECORATIVE SHEET; C. COATING SAID IMPREGNATED SHEET ON ONE SIDE WITH A FLUID RADIATION-CURABLE RESINOUS MATERIAL CONSISTING OF 100 PERCENT REACTIVE SOLIDS; D. RADIATING SAID RESINOUS MATERIAL UNTIL IT ATTAINS A DIMENSIONALLY STABLE SEMISOLID STATE; E. IMPRESSING A REMOVABLE SHEET UPON SAID SEMISOLID MATERIAL WITH AT LEAST ONE PRESSURE ROLLER AT ABOUT 5 TO 150 POUNDS PER LINEAR INCH; F. PLACING THE SIDE OF SAID IMPREGNATED SHEET OPPOSITE SAID SEMISOLID MATERIAL INTO CONTACT WITH A SUBSTRATE; G. APPLYING HEAT AND PRESSURE TO SAID IMPREGNATED SHEET, REMOVABLE SHEET, SEMISOLID MATERIAL AND SUBSTRATE TO CURE SAID RESIN AND SEMISOLID MATERIAL AND BOND SAID DECORATIVE SHEET TO SAID SUBSTRATE; AND, H. REMOVING SAID REMOVABLE SHEET.
Claim 2
Independent Claim
139 words
A METHOD OF MAKING A LAMINATED PRODUCT COMPRISING THE STEPS OF: A. IMPREGNATING A DECORATIVE SHEET WITH A LIQUID THERMOSETTING RESIN; B. DRYING SAID RESIN ON SAID DECORATIVE SHEET; C. COATING SAID IMPREGNATED SHEET ON ONE SIDE WITH A FLUID RADIATION-CURABLE RESINOUS MATERIAL CONSISTING OF 100 PERCENT REACTIVE SOLIDS; D. RADIATING SAID RESINOUS MATERIAL UNTIL IT ATTAINS A DIMENSIONALLY STABLE SEMISOLID STATE; E. IMPRESSING A REMOVABLE SHEET UPON SAID SEMISOLID MATERIAL WITH AT LEAST ONE PRESSURE ROLLER AT ABOUT 5 TO 150 POUNDS PER LINEAR INCH; F. PLACING THE SIDE OF SAID IMPREGNATED SHEET OPPOSITE SAID SEMISOLID MATERIAL INTO CONTACT WITH A SUBSTRATE; G. APPLYING HEAT AND PRESSURE TO SAID IMPREGNATED SHEET, REMOVABLE SHEET, SEMISOLID MATERIAL AND SUBSTRATE TO CURE SAID RESIN AND SEMISOLID MATERIAL AND BOND SAID DECORATIVE SHEET TO SAID SUBSTRATE; AND, H. REMOVING SAID REMOVABLE SHEET.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein step (a) includes the application of said thermosetting resin to both sides of said decorative sheet.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein said removable sheet is embossed and imparts a textured appearance to the surface of said resinous material.
Claim 5
Dependent Claim
25 words
The method of claim 1 wherein said resinous material comprises an acrylic resin and said thermosetting resin comprises an isophthalic resin and a solid monomer.
Claim 6
Dependent Claim
12 words
The method of claim 4 wherein said solid monomer is diacetone acrylamide.
Claim 7
Dependent Claim
16 words
The method of claim 1 wherein said resinous material comprises a polyester resin and vinyl monomer.
Claim 8
Dependent Claim
19 words
The method of claim 6 wherein said polyester resin is an isophthalic resin and said vinyl monomer is styrene.
Claim 9
Dependent Claim
24 words
The method of claim 1 including the step of applying a release agent to said removable sheet before impressing it upon said semisolid material.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |