US4012561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decorative laminate with care of newsprint and wood pulp
Assignee: Westvaco Corp
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Filing: 1975-06-02
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Granted: 1977-03-15
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Expires: 1995-06-02
Abstract
Abstract Disclosed herein are decorative laminates meeting N.E.M.A. standards which have high impact resistance, flexural strength, and low water absorption qualities suitable for surface veneering wherein the core stock paper is made from 10% to 100% of newspaper or newsprint pulp which in the preferred practice of the invention is substituted for either the pine portion of the core sheet or the hardwood portion.
Inventors
- 👤 Joseph B. Doughty
- 👤 Carl F. Schulerud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:31
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/002; B32B29/005; B32B23/00; B32B23/04; B32B23/06; D; D21; D21H; D21H27/00; D21H27/18; D21H27/22; D21H27/26; D21H5/00; D21H5/0085; D21H5/0087; B32B2305/00; B32B2305/70; B32B2307/00; B32B2307/50; B32B2307/546; B32B2307/558; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2317/00; B32B2317/12; B32B2317/125; B32B2451/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/3196; Y10T428/31964; Y10T428/31967; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
A decorative laminate meeting N.E.M.A. standards for surface veneering having the following laminae combined in order of ascending superimposed relationship to form a unitary structure, (a) a core, (b) a decorative cellulose sheet impregnated with a melamine resin, and (c) a cellulose overlay sheet impregnated with a melamine resin, the improvement comprising, forming said core from a multiplicity of core sheets, each of said core sheets comsisting essentially of from 10 to 100% repulped newsprint and the remainder of said sheet being a pulp selected from the group consisting of pine pulp, hardwood pulp and mixtures thereof, and impregnating each of said core sheets with from 10 to 70% by weight of a phenolic resin.
Claim 2
Dependent Claim
115 words
A decorative laminate meeting N.E.M.A. standards for surface veneering having the following laminae combined in order of ascending superimposed relationship to form a unitary structure, (a) a core, (b) a decorative cellulose sheet impregnated with a melamine resin, and (c) a cellulose overlay sheet impregnated with a melamine resin, the improvement comprising, forming said core from a multiplicity of core sheets, each of said core sheets comsisting essentially of from 10 to 100% repulped newsprint and the remainder of said sheet being a pulp selected from the group consisting of pine pulp, hardwood pulp and mixtures thereof, and impregnating each of said core sheets with from 10 to 70% by weight of a phenolic resin.
Claim 3
Dependent Claim
27 words
The decorative laminate of claim 5 wherein said core sheet is comprised of from 10 to 90% repulped newspaper and the remainder of said sheet is pine.
Claim 4
Dependent Claim
27 words
The decorative laminate of claim 5 wherein said core sheet is comprised of from 10 to 90% repulped newspaper and the remainder of said sheet is hardwood.
References Cited (Backward Citations)
US2658828A
Cited
US3373070A
Cited
US3551272A
Cited
US3644167A
Cited
US3718536A
Cited
US3912569A
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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) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |