Patent US3931448A successfully refreshed from Google Patents.
US3931448A
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US
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Coated articles
Assignee: United States Steel Corp
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Filing: 1973-12-07
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Granted: 1976-01-06
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Expires: 1993-12-07
Abstract
Abstract Aqueous dispersions in which ethylene-carboxylic acid copolymers and a low molecular weight phenolic resin are combined to produce a material useful as an adhesive, insulator, primer or coating. Additives enhancing the properties of the composition are also disclosed.
Inventors
- 👤 Robert E. Parkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:02
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/10; C; C08; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28; B32B7/00; B32B7/04; B32B7/12; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J123/0846; C09J123/0869; B32B2311/00; B32B2311/30; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L2666/00; C08L2666/02; C08L2666/14; C08L61/04; C08L61/06; C08L95/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31667; Y10T428/31678; Y10T428/31688; Y10T428/31692; Y10T428/31699; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
A coated article comprising a substrate coated with a composition comprising an aqueous dispersion of: from about 25 to about 95 weight percent of resin solids of a copolymer of ethylene and acrylic acid, wherein the acrylic acid constitutes about 18% to 24% of the copolymer; blended with b. from about 5 to about 75 weight percent of resin solids of a water-dispersible, heat-reactable, rseol, A-stage type phenolic resin essentially free of unreacted phenol and containing a substantial amount of trimethylol phenol.
Claim 2
Dependent Claim
82 words
A coated article comprising a substrate coated with a composition comprising an aqueous dispersion of: from about 25 to about 95 weight percent of resin solids of a copolymer of ethylene and acrylic acid, wherein the acrylic acid constitutes about 18% to 24% of the copolymer; blended with b. from about 5 to about 75 weight percent of resin solids of a water-dispersible, heat-reactable, rseol, A-stage type phenolic resin essentially free of unreacted phenol and containing a substantial amount of trimethylol phenol.
Claim 3
Dependent Claim
25 words
A coated article according to claim 1 in which said substrate is steel, whereby the resultant coated steel is suitable for use in electromagnetic cores.
Claim 4
Dependent Claim
22 words
An article according to claim 1 wherein said substrate is selected from the group consisting of metals, wood, fiberboard, paper and ceramics.
References Cited (Backward Citations)
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US3361692A
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US3392131A
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US3644262A
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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) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |