US4245016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode coating composed of copolymers derived from diacetone acrylamide
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1978-12-05
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Granted: 1981-01-13
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Expires: 1998-12-05
Abstract
Abstract An improved electrode coating and separator coating derived from a copolymer of diacetone acrylamide and a polymerizable monomer. This invention relates to novel rechargeable electrodes, separators and processes for preparing same.
Inventors
- 👤 Guy Rampel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:38
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/244; H01M4/62; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/42; H01M50/423; H01M50/44; H01M50/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
38 words
In a zinc electrode, the improvement comprising an electrode coating consisting essentially of a copolymer derived from diacetone acrylamide and a polymerizable monomer selected from acrylic acid or methacrylic acid; and a finely divided active zinc electrode material.
Claim 2
Dependent Claim
38 words
In a zinc electrode, the improvement comprising an electrode coating consisting essentially of a copolymer derived from diacetone acrylamide and a polymerizable monomer selected from acrylic acid or methacrylic acid; and a finely divided active zinc electrode material.
Claim 3
Dependent Claim
36 words
The electrode of claim 1 wherein said copolymer is a linear, high molecular weight copolymer derived from diacetone acrylamide and acrylic acid, the molecular weight ratio of said monomers being about 1 to about 0.5, respectively.
Claim 4
Dependent Claim
22 words
The electrode of claim 1 wherein said copolymer is a linear, high molecular weight copolymer derived from diacetone acrylamide and methacrylic acid.
Claim 5
Dependent Claim
21 words
The zinc electrode of claim 1 wherein said copolymer comprises from about 0.5 to about 5% by weight of said coating.
Claim 6
Dependent Claim
26 words
The zinc electrode of claim 1 wherein said electrode coating is coated in an amount of from 1 to about 5% by weight of said electrode.
References Cited (Backward Citations)
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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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |