US4016327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated structures and methods and compositions for producing same
Assignee: OI Glass Inc
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Filing: 1975-07-31
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Granted: 1977-04-05
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Expires: 1995-07-31
Abstract
Abstract Methods for bonding two substrates, one of which is polymeric, which comprise coating the surface of at least one substrate with an adhesive composition comprising a major component which is an adhesive for the first substrate and a minor disperse phase which is a solution of a polymer in a solvent for the polymeric substrate and contacting the coated surface of the one substrate with the surface of the other substrate, together with adhesive compositions useful for joining such substrates, laminates so formed, and articles comprised of such laminates.
Inventors
- 👤 Giancarlo J. Fumei
- 👤 James A. Karabedian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:23
CPC Classifications
B; B65; B65D; B65D3/00; B65D3/22; A; A01; A01C; A01C1/00; A01C1/04; A01C1/046; A01G; A01G9/00; A01G9/02; A01G9/029; B32; B32B; B32B27/00; B32B27/04; B32B7/00; B32B7/04; B32B7/12; C; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249962; Y10T428/249964; Y10T428/249981; Y10T428/249982; Y10T428/249985; Y10T428/249986; Y10T428/25; Y10T428/254; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31909; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
A laminated structure comprising: (1) a substrate of high polymeric material, (2) a substrate of a porous hydrophilic cellulosic material, and (3) a layer bonding said substrates comprising particles of a polymer of the same kind as said high polymeric material substrate (1) but of an average molecular weight of from about four to about 100 percent of said high polymeric material substrate bonded to the surface of said substrate (1) and a predominant amount of a water-dispersible adhesive preferentially adherent to said cellulosic substrate surrounding said bonded particles so as to mechanically interlock with said particles.
Claim 2
Dependent Claim
97 words
A laminated structure comprising: (1) a substrate of high polymeric material, (2) a substrate of a porous hydrophilic cellulosic material, and (3) a layer bonding said substrates comprising particles of a polymer of the same kind as said high polymeric material substrate (1) but of an average molecular weight of from about four to about 100 percent of said high polymeric material substrate bonded to the surface of said substrate (1) and a predominant amount of a water-dispersible adhesive preferentially adherent to said cellulosic substrate surrounding said bonded particles so as to mechanically interlock with said particles.
Claim 3
Dependent Claim
29 words
A laminate as defined in claim 1 wherein said polymeric substrate is a styrene, acrylic or methacylic polymer, and said porous hydrophilic cellulosic substrate is paper, rayon or paperboard.
Claim 4
Dependent Claim
14 words
A laminate as defined in claim 1 wherein said polymeric substrate is foamed polystyrene.
Claim 5
Dependent Claim
38 words
A laminate as defined in claim 1 wherein said polymeric substrate (1) is polystyrene, said porous hydrophilic cellulosic material is paper, said adhesive polymer is polystyrene, and said water-dispersible adhesive is a copolymer of ethylene and vinyl acetate.
Claim 6
Dependent Claim
42 words
A laminate as defined in claim 4 wherein said polystyrene adhesive has an average molecular weight of from about 5 to 15 percent of the average molecular weight of the polystyrene substrate and said water-dispersible adhesive is an acetoxylated ethylene-vinyl acetate copolymer.
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) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |