US4152313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl film-wood laminates and adhesive therefor
Assignee: US PLYWOOD Corp A CORP OF
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Filing: 1977-11-17
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Granted: 1979-05-01
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Expires: 1997-11-17
Abstract
Abstract A vinyl film-wood product substrate laminate is formed using as an adhesive a mixture of a vinyl acetate-ethylene emulsion and an admixture of toluene and N-lower alkyl substituted pyrrolidone.
Inventors
- 👤 Ozzie Fogle
- 👤 James Cooley
- 👤 Michael E. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:08
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/04; B32B21/08; B32B27/00; B32B27/30; B32B27/304; B32B7/00; B32B7/04; B32B7/12; C; C08; C08K; C08K5/00; C08K5/02; C08K5/16; C08K5/34; C09; C09J; C09J131/00; C09J131/02; C09J131/04; B32B2255/00; B32B2255/10; B32B2327/00; B32B2327/06; C08L; C08L2666/00; C08L2666/28; C08L2666/36; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
37 words
An adhesive composition comprising about 85-95% of a vinyl acetate-ethylene copolymer emulsion and about 5-15% of an admixture of toluene and N-lower alkyl substituted pyrrolidone, the weight ratio of toluene to pyrrolidone being about 2:1 to 1:2.
Claim 2
Dependent Claim
37 words
An adhesive composition comprising about 85-95% of a vinyl acetate-ethylene copolymer emulsion and about 5-15% of an admixture of toluene and N-lower alkyl substituted pyrrolidone, the weight ratio of toluene to pyrrolidone being about 2:1 to 1:2.
Claim 3
Dependent Claim
13 words
The adhesive composition of claim 1 wherein said lower alkyl group is methyl.
Claim 4
Dependent Claim
18 words
The adhesive composition of claim 1 wherein said emulsion is about 90% and said admixture is about 10%.
Claim 5
Dependent Claim
17 words
The adhesive composition of claim 3 wherein said weight ratio of toluene to pyrrolidone is about 1:1.
Claim 6
Dependent Claim
12 words
The adhesive composition of claim 4 wherein said pyrrolidone is N-methyl pyrrolidone.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |