US3887743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary plastic laminate
Assignee: Mead Corp
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Filing: 1972-11-09
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Granted: 1975-06-03
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Expires: 1992-11-09
Abstract
Abstract Plastic laminates are prepared using decor layers containing 1025% of particulate polyacrylonitrile resin, the polyacrylonitrile resin being incorporated in the decor during its manufacture on a paper machine. The laminates meet NEMA specifications even though less resin is used and fewer process steps are required.
Inventors
- 👤 William C Lane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:42
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/02; B44; B44C; B44C1/00; B44C1/10; B32B29/002; B32B29/005; B32B29/04; B32B5/00; B32B5/16; B44C5/00; B44C5/04; B44C5/0469; B32B2260/00; B32B2260/02; B32B2260/028; B32B2260/04; B32B2260/046; B32B2307/00; B32B2307/70; B32B2307/75; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/25; Y10T428/254; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31866; Y10T428/3187; Y10T428/31873
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
82 words
A UNITARY PLASTIC LAMINATE CONSISTING ESSENTIALLY OF A CORE IMPREGNATED WITH A PHENOLIC RESIN, A DECOR SHEET AND AN OVERLAYER IMPREGNATED WITH AN AMINOPLAST, SAID DECOR SHEET HAVING FROM 10 TO 25% BY WEIGHT OF PARTICULATE POLYACRYLONITRILE RESIN UNIFORMLY DISPERSED THEREIN DURING MANUFACTURE THEREOF, SAID POLYACRYLONITRILE RESIN BEING A COPOLYMER OF 85 TO 98% BY WEIGHT OF ACRYLONITRILE AND 15 TO 2% BY WEIGHT OF AN ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH, SAID POLYACRYLONITRITE HAVING A MOLECULAR WEIGHT RANGING FROM 60,000 TO 90,000.
Claim 2
Dependent Claim
82 words
A UNITARY PLASTIC LAMINATE CONSISTING ESSENTIALLY OF A CORE IMPREGNATED WITH A PHENOLIC RESIN, A DECOR SHEET AND AN OVERLAYER IMPREGNATED WITH AN AMINOPLAST, SAID DECOR SHEET HAVING FROM 10 TO 25% BY WEIGHT OF PARTICULATE POLYACRYLONITRILE RESIN UNIFORMLY DISPERSED THEREIN DURING MANUFACTURE THEREOF, SAID POLYACRYLONITRILE RESIN BEING A COPOLYMER OF 85 TO 98% BY WEIGHT OF ACRYLONITRILE AND 15 TO 2% BY WEIGHT OF AN ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH, SAID POLYACRYLONITRITE HAVING A MOLECULAR WEIGHT RANGING FROM 60,000 TO 90,000.
Claim 3
Dependent Claim
82 words
A unitary plastic laminate consisting essentially of a core impregnated with a phenolic resin, a decor sheet and an overlay impregnated with an aminoplast, said decor sheet having from 10 to 25% by weight of particulate polyacrylonitrile resin uniformly dispersed therein during manufacture thereof, said polyacrylonitrile resin being a copolymer of 85 to 98% by weight of acrylonitrile and 15 to 2% by weight of an ethylenically unsaturated monomer copolymerizable therewith, said polyacrylonitrile having a molecular weight ranging from 60,000 to 90,000.
Claim 4
Dependent Claim
82 words
A unitary plastic laminate consisting essentially of a core impregnated with a phenolic resin, a decor sheet and an overlay impregnated with an aminoplast, said decor sheet having from 10 to 25% by weight of particulate polyacrylonitrile resin uniformly dispersed therein during manufacture thereof, said polyacrylonitrile resin being a copolymer of 85 to 98% by weight of acrylonitrile and 15 to 2% by weight of an ethylenically unsaturated monomer copolymerizable therewith, said polyacrylonitrile having a molecular weight ranging from 60,000 to 90,000.
Claim 5
Dependent Claim
19 words
The laminate of claim 1 wherein said polyacrylonitrile resin has a particle diameter ranging from 1 to 50 microns.
Claim 6
Dependent Claim
13 words
The laminate of claim 1 wherein said decor sheet carries a printed pattern.
Claim 7
Dependent Claim
88 words
A decor paper adapted for incorporation as a decorative layer in a plastic laminate together with a core impregnated with a phenolic resin and an overlay impregnated with an aminoplast, said decor paper containing from 10 to 25% by weight of particulate polyacrylonitrile resin uniformly dispersed therein during manufacture thereof, said polyacrylonitrile resin being a copolymer of 85 to 98% by weight of acrylonitrile and 15 to 2% by weight of an ethylenically unsaturated monomer copolymerizable therewith, said polyacrylonitrile having a molecular weight ranging from 60,000 to 90,000.
Claim 8
Dependent Claim
88 words
A decor paper adapted for incorporation as a decorative layer in a plastic laminate together with a core impregnated with a phenolic resin and an overlay impregnated with an aminoplast, said decor paper containing from 10 to 25% by weight of particulate polyacrylonitrile resin uniformly dispersed therein during manufacture thereof, said polyacrylonitrile resin being a copolymer of 85 to 98% by weight of acrylonitrile and 15 to 2% by weight of an ethylenically unsaturated monomer copolymerizable therewith, said polyacrylonitrile having a molecular weight ranging from 60,000 to 90,000.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |