US3663341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three sheet overlay and laminates comprising the same
Assignee: Westvaco Corp
•
Filing: 1971-01-25
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Granted: 1972-05-16
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Expires: 1991-01-25
Abstract
Abstract A decorative and functional overlay comprising a sheet of glass fibers, a decorative sheet, and a shock-absorbing sheet, all sheets containing polyester resin. The sheets may be layed up with and fused directly to a rigidity-imparting base member or the sheets may be consolidated into a thin unitary panel not exceeding 0.030 inch in thickness which may be bonded or glued to a core material. A low pressure laminate with high impact resistance, suitable for horizontal as well as vertical surface applications, is produced by laminating the sheets in particular order to flakeboard having a density of at least about 46 pounds per cubic foot.
Inventors
- 👤 Lee E Veneziale Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:34
CPC Classifications
B; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; B44C5/0476; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
23 words
The laminated article of claim 1 wherein the fiber glass sheet contains by weight about 55 percent to about 85 percent polyester resin.
Claim 2
Dependent Claim
24 words
an alpha-cellulose print sheet containing by weight about 55 to 62 percent polyester resin and having a printed design on one side thereof, and
Claim 3
Dependent Claim
110 words
an unpigmented non-woven cotton fiber sheet containing by weight about 55 to 60 percent polyester resin, said polyester resin, which in its uncured state is a polymerizable unsaturated polyester resin, in said overlay sheets being substantially cured and bonding said overlay sheets to each other and to the flakeboard base member, said cotton fiber sheet positioned in the laminate adjacent the flakeboard base member and bonded thereto, said print sheet positioned in the laminate between said cotton fiber sheet and said fiber glass sheet, said print sheet being bonded on its printed side to the fiber glass sheet and being bonded on its other side to the cotton fiber sheet.
Claim 4
Dependent Claim
26 words
The laminated article of claim 1 wherein the decorative sheet is an alpha-cellulose sheet containing by weight about 50 percent to about 65 percent polyester resin.
Claim 5
Dependent Claim
28 words
The laminated article of claim 1 wherein the cushioning sheet is comprised of cotton fibers and contains by weight about 50 percent to about 60 percent polyester resin.
Claim 6
Dependent Claim
13 words
The laminated article of claim 1 wherein the rigidity-imparting base member is flakeboard.
Claim 7
Dependent Claim
114 words
A low pressure decorative laminate suitable for use in horizontal surface applications comprising the heat and pressure consolidated unitary structure having the following laminae in the order of ascending superimposed relationship: a. a flakeboard base member having a density of at least about 46 pounds per cubic foot, b. an unpigmented non-woven cotton fiber sheet impregnated with a thermosetting polyester resin, c. a decorative sheet impregnated with a thermosetting polyester resin, and d. an unpigmented fiber glass sheet impregnated with a thermosetting polyester resin, wherein the thermosetting resin in each sheet is converted to the thermoset state during consolidation to the unitary structure, to fuse the sheets to each other and to the flakeboard.
Claim 8
Dependent Claim
55 words
The low pressure laminate of claim 6 in which the flakeboard carries on its top broad side the sheets (b), (c), and (d) in superimposed relationship, and carries on its bottom broad side bonded thereto a backing sheet impregnated with a thermoset polyester resin which in its uncured state is a polymerizable unsaturated polyester resin.
Claim 9
Dependent Claim
54 words
A decorative laminated article having high impact resistance, suitable for use in horizontal surface applications, which comprises: a. a flakeboard base member having a density of at least about 46 pounds per cubic foot, and b. a decorative three-sheet overlay bonded to one broad surface of the flakeboard base member, said decorative overlay comprising
Claim 10
Dependent Claim
19 words
The decorative laminated article of claim 8 wherein the three-sheet overlay has a thickness not exceeding about 0.030 inch.
Claim 11
Dependent Claim
99 words
A unitary, laminated product having a thickness not exceeding about 0.030 inch, suitable for use as a decorative overlay for substrates, which comprises a decorative sheet having a printed design on one side thereof, a transparent glass fiber sheet fused on one side thereof to the printed side of the decorative sheet, and a non-woven cotton fiber sheet fused on one side thereof to the other side of the decorative sheet, said sheets being saturated with and unitarily fused to each other by a substantially cured polyester resin which in its uncured state is a polymerizable unsaturated polyester resin.
Claim 12
Dependent Claim
25 words
The laminated product of claim 10 in which the decorative sheet is an alpha-cellulose sheet containing by weight about 50 to 65 percent polyester resin.
Claim 13
Dependent Claim
22 words
The laminated product of claim 11 in which the glass fiber sheet contains by weight about 55 to 85 percent polyester resin.
Claim 14
Dependent Claim
22 words
The laminated product of claim 12 in which the cotton fiber sheet contains by weight about 50 to 60 percent polyester resin.
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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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |