US4132674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroconductive coating formulation
Assignee: ECC SPECIALTY CHEMICALS Inc
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Filing: 1977-12-21
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Granted: 1979-01-02
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Expires: 1997-12-21
Abstract
Abstract Methanol soluble electroconductive coating formulations comprising an electroconductive polymer and a methanol dispersible fluorosurfactant and optionally a pigment.
Inventors
- 👤 Mei H. Hwang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:58
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/122; G; G03; G03G; G03G5/00; G03G5/10; G03G5/105
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
195 words
A method for enhancing the solvent holdout properties of methanol soluble electroconductive coating formulations which comprises adding from about 0.5 to about 10% by weight of a methanol soluble or methanol dispersible fluorosurfactant of the formula: F(CF.sub.2).sub.n CH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 N.sup.+ R.sub.1 R.sub.2 R.sub.3 wherein: n is an integer of from 4 to 14; R 1 is an alkyl group of 1 to 4 carbon atoms; R 2 is an alkyl group of 1 to 4 carbon atoms; and R 3 is an alkyl group of 1 to 4 carbon atoms or is the covalently bonded anion to a coating formulation comprising from 60 to about 99% by weight of an electroconductive cationic quaternary ammonium polymer selected from the group consisting of poly-(dimethyldiallylammonium chloride), a copolymer of dimethyl diallyl ammonium chloride and diacetone acrylamide containing from 70 to 98% of diallyl monomer units, polyvinyl benzyl trimethyl ammonium chloride, polymethacryloloxyethyl trimethyl ammonium chloride, polymethacryloloxyethyl trimethyl ammonium methosulfate, polyepichlorohydrin 80 to 100% quaternized with trimethylamine, copolymers of acrylamide and methacryloloxyethyl trimethyl ammonium chloride containing from 90 to 99.5% methacryloloxyethyl monomer, and poly-(methacryloloxyethyl dimethyl hydroxyethyl ammonium chloride) and 0 to about 40% by weight of a pigment.
Claim 2
Independent Claim
195 words
A method for enhancing the solvent holdout properties of methanol soluble electroconductive coating formulations which comprises adding from about 0.5 to about 10% by weight of a methanol soluble or methanol dispersible fluorosurfactant of the formula: F(CF.sub.2).sub.n CH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 N.sup.+ R.sub.1 R.sub.2 R.sub.3 wherein: n is an integer of from 4 to 14; R 1 is an alkyl group of 1 to 4 carbon atoms; R 2 is an alkyl group of 1 to 4 carbon atoms; and R 3 is an alkyl group of 1 to 4 carbon atoms or is the covalently bonded anion to a coating formulation comprising from 60 to about 99% by weight of an electroconductive cationic quaternary ammonium polymer selected from the group consisting of poly-(dimethyldiallylammonium chloride), a copolymer of dimethyl diallyl ammonium chloride and diacetone acrylamide containing from 70 to 98% of diallyl monomer units, polyvinyl benzyl trimethyl ammonium chloride, polymethacryloloxyethyl trimethyl ammonium chloride, polymethacryloloxyethyl trimethyl ammonium methosulfate, polyepichlorohydrin 80 to 100% quaternized with trimethylamine, copolymers of acrylamide and methacryloloxyethyl trimethyl ammonium chloride containing from 90 to 99.5% methacryloloxyethyl monomer, and poly-(methacryloloxyethyl dimethyl hydroxyethyl ammonium chloride) and 0 to about 40% by weight of a pigment.
Claim 3
Dependent Claim
18 words
A method as in claim 1 wherein the electroconductive polymer is a homopolymer of dimethyl diallyl ammonium chloride.
Claim 4
Dependent Claim
178 words
A methanol soluble electroconductive coating formulation comprising from 60 to about 99% by weight of an electroconductive cationic quaternary ammonium polymer selected from the group consisting of poly-(dimethyldiallylammonium chloride), a copolymer of dimethyl diallyl ammonium chloride and diacetone acrylamide containing from 70 to 98% of diallyl monomer units, polyvinyl benzyl trimethyl ammonium chloride, polymethacryloloxyethyl trimethyl ammonium chloride, polymethacryloloxyethyl trimethyl ammonium methosulfate, polyepichlorohydrin 80 to 100% quaternized with trimethylamine, copolymers of acrylamide and methacryloloxyethyl trimethyl ammonium chloride containing from 90 to b 99.5% methacryloloxyethyl monomer, and poly-(methacryloloxyethyl dimethyl hydroxyethyl ammonium chloride), 0 to about 40% by weight of a pigment and from about 0.5 to about 10% by weight of a methanol soluble fluorosurfactant of the formula: F(CF.sub.2).sub.n CH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 N.sup.+ R.sub.1 R.sub.2 R.sub.3 wherein: n is an integer of from 4 to 14; R 1 is an alkyl group of 1 to 4 carbon atoms; R 2 is an alkyl group of 1 to 4 carbon atoms; and R 3 is an alkyl group of 1 to 4 carbon atoms or is the covalently bonded anion.
Claim 5
Dependent Claim
178 words
A methanol soluble electroconductive coating formulation comprising from 60 to about 99% by weight of an electroconductive cationic quaternary ammonium polymer selected from the group consisting of poly-(dimethyldiallylammonium chloride), a copolymer of dimethyl diallyl ammonium chloride and diacetone acrylamide containing from 70 to 98% of diallyl monomer units, polyvinyl benzyl trimethyl ammonium chloride, polymethacryloloxyethyl trimethyl ammonium chloride, polymethacryloloxyethyl trimethyl ammonium methosulfate, polyepichlorohydrin 80 to 100% quaternized with trimethylamine, copolymers of acrylamide and methacryloloxyethyl trimethyl ammonium chloride containing from 90 to b 99.5% methacryloloxyethyl monomer, and poly-(methacryloloxyethyl dimethyl hydroxyethyl ammonium chloride), 0 to about 40% by weight of a pigment and from about 0.5 to about 10% by weight of a methanol soluble fluorosurfactant of the formula: F(CF.sub.2).sub.n CH.sub.2 CH.sub.2 SCH.sub.2 CH.sub.2 N.sup.+ R.sub.1 R.sub.2 R.sub.3 wherein: n is an integer of from 4 to 14; R 1 is an alkyl group of 1 to 4 carbon atoms; R 2 is an alkyl group of 1 to 4 carbon atoms; and R 3 is an alkyl group of 1 to 4 carbon atoms or is the covalently bonded anion.
Claim 6
Dependent Claim
18 words
A method as in claim 3 wherein the electroconductive polymer is a homopolymer of dimethyl diallyl ammonium chloride.
References Cited (Backward Citations)
GB1434119A
Cited
US3953374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |