Patent US4222901A successfully refreshed from Google Patents.
US4222901A
Expired / Lapsed
US
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Electroconductive polymers having improved solvent holdout properties
Assignee: ECC SPECIALTY CHEMICALS Inc
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Filing: 1978-11-15
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Granted: 1980-09-16
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Expires: 1998-11-15
Abstract
Abstract Electroconductive copolymers of diallyldimethylammonium chloride and at least 15 percent by weight acrylamide which exhibit improved solvent holdout.
Inventors
- 👤 Gloria D. Sinkovitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:14
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/105; G03G5/107; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
27 words
An improved electroconductive resin coating composition containing a copolymer of a water-soluble quaternary ammonium conductive monomer and at least 15, but less than 30, percent by weight-acrylamide.
Claim 2
Dependent Claim
27 words
An improved electroconductive resin coating composition containing a copolymer of a water-soluble quaternary ammonium conductive monomer and at least 15, but less than 30, percent by weight-acrylamide.
Claim 3
Dependent Claim
19 words
A composition as in claim 1 wherein the water-soluble quaternary ammonium conductive monomer is vinylbenzyltrimethylammonium chloride or diallyldimethylammonium chloride.
Claim 4
Dependent Claim
16 words
A composition as in claim 2 wherein the water-soluble quaternary ammonium conductive monomer is diallyldimethylammonium chloride.
Claim 5
Dependent Claim
43 words
An electroconductive article having a substrate and a coating containing from about 0.1 to about 3.0 pounds per 3000 square feet of a copolymer of a water-soluble quaternary ammonium conductive monomer and at least 15, but less than 30, percent by weight acrylamide.
Claim 6
Dependent Claim
43 words
An electroconductive article having a substrate and a coating containing from about 0.1 to about 3.0 pounds per 3000 square feet of a copolymer of a water-soluble quaternary ammonium conductive monomer and at least 15, but less than 30, percent by weight acrylamide.
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) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |