US4420541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation polymerizable compounds and conductive coatings from same
Assignee: Sherwin Williams Co
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Filing: 1981-09-30
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Granted: 1983-12-13
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Expires: 2001-09-30
Abstract
Abstract This invention is directed to a novel water soluble conductive material which is capable of being polymerized by actinic radiation. More specifically, this invention involves the use of a radiation curable quaternary ammonium salt obtained by mixing at least one tertiary amine having acryloyl or methacryloyl unsaturation and at least one halide. When the water-soluble conductive material is subjected to actinic radiation sufficient to cause polymerization, it maintains its conductive character, but becomes essentially impervious to attack by water or solvent, and remains tack-free even at high relative humidity. When the water-soluble conductive material is polymerized by actinic radiation, it is not necessary to drive water off during cure and then rehumidify to obtain proper conductivity as is often necessary with the prior art coatings.
Inventors
- 👤 Gregory D. Shay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:40
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34; C09; C09D; C09D5/00; C09D5/24; C09K; C09K3/00; C09K3/16; G03F7/028; G03F7/029; G03F7/0295; G03G; G03G5/00; G03G5/10; G03G5/105; G03G5/107; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
181 words
A process for treating a substrate to impart conductive characteristics which comprises: (i) applying a radiation crosslinkable coating onto the surface of the substrate; and (ii) subjecting the radiation crosslinkable coating to actinic radiation sufficient to cause crosslinking of said coating; wherein said coating is an aqueous solution of a quaternary ammonium salt obtained by mixing reactive amounts of: (a) at least one tertiary amine of the formula: ##STR3## wherein R 1 is H or CH 3 , Z is O or NH, R 2 is an aliphatic radical of from 1 to 6 carbon atoms or aryl of from 6 to 10 carbon atoms, R 3 and R 4 are the same or different and are selected from the group consisting of aliphatic radicals containing from 1 to 10 carbon atoms and aryl radicals containing from 6 to 10 carbon atoms; and (b) at least one halide having from 2 to 6 halogen atoms and selected from the group consisting of aliphatic halides having from 1 to 10 carbon atoms and arene halides having from 7 to 20 carbon atoms.
Claim 2
Dependent Claim
181 words
A process for treating a substrate to impart conductive characteristics which comprises: (i) applying a radiation crosslinkable coating onto the surface of the substrate; and (ii) subjecting the radiation crosslinkable coating to actinic radiation sufficient to cause crosslinking of said coating; wherein said coating is an aqueous solution of a quaternary ammonium salt obtained by mixing reactive amounts of: (a) at least one tertiary amine of the formula: ##STR3## wherein R 1 is H or CH 3 , Z is O or NH, R 2 is an aliphatic radical of from 1 to 6 carbon atoms or aryl of from 6 to 10 carbon atoms, R 3 and R 4 are the same or different and are selected from the group consisting of aliphatic radicals containing from 1 to 10 carbon atoms and aryl radicals containing from 6 to 10 carbon atoms; and (b) at least one halide having from 2 to 6 halogen atoms and selected from the group consisting of aliphatic halides having from 1 to 10 carbon atoms and arene halides having from 7 to 20 carbon atoms.
Claim 3
Dependent Claim
20 words
The process of claim 1 further characterized in that the actinic radiation has a wavelength less than about 4,000 Angstroms.
Claim 4
Dependent Claim
16 words
The process of claim 1 further characterized in that the actinic radiation is electron beam radiation.
Claim 5
Dependent Claim
15 words
The process of claim 1 further characterized in that the actinic radiation is ultraviolet radiation.
Claim 6
Dependent Claim
9 words
A substrate treated by the process of claim 1.
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) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |