EP0251531A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electroconductive coating composition
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1987-06-11
•
Granted: —
•
Expires: 2007-06-11
Abstract
Abstract An electroconductive coating composition for a plastics substrate, such as a poly(ethylene terephthalate) film, comprises a polymeric electrolyte and a polyepoxy resin. Surface conductivity may be promoted by the inclusion of an enhancer or by treatment with an interactive solvent medium. Substrates coated with the composition exhibit substantially permanent antistatic characteristics when subjected to photographic processing techniques.
Inventors
- 👤 Kelvin Patrick Adkins
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 02:35
CPC Classifications
C; C07; C07C; C07C221/00; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/122; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/044; C08J7/046; C08J7/054; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/201; C09D; C09D163/00; G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/89; C08J2463/00; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10S524/00; Y10S524/91; Y10S524/911; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31786; Y10T428/31797; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
21 words
An electroconductive composition for coating a plastics substrate characterised in that the composition comprises a polymeric electrolyte and a polyepoxy resin.
Claim 2
Dependent Claim
21 words
An electroconductive composition for coating a plastics substrate characterised in that the composition comprises a polymeric electrolyte and a polyepoxy resin.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 additionally comprising an electrical surface conductivity enhancer.
Claim 4
Dependent Claim
19 words
A composition according to either of claims 1 and 2 additionally comprising a curing agent for the epoxy resin.
Claim 5
Dependent Claim
24 words
A composition according to any one of the preceding claims wherein the polymeric electrolyte comprises a cationic methacrylic polyelectrolyte, optionally incorporating methylol cross-linkable functionality.
Claim 6
Dependent Claim
19 words
A composition according to any one of the preceding claims wherein the polyepoxy resin comprises a bisphenol A-epichlorohydrin condensate.
Claim 7
Dependent Claim
28 words
A coated article comprising a polymeric substrate having, on at least one surface thereof, an electroductive layer of a composition according to any one of the preceding claims.
Claim 8
Dependent Claim
18 words
An article according to claim 6 additionally comprising an etchant layer between the substrate and the electroconductive layer.
Claim 9
Dependent Claim
27 words
An article according to either of claims 6 and 7 additionally comprising an interactive glazing layer on the surface of the electroconductive layer remote from the substrate.
Claim 10
Dependent Claim
18 words
An article according to any one of claims 6 to 8 wherein the substrate comprises an oriented polyester.
Claim 11
Dependent Claim
30 words
A method of producing a coated article comprising applying to at least one surface of a polymeric substrate a coating composition according to any one of claim 1 to 5.
Claim 12
Dependent Claim
46 words
A method according to claim 10 wherein the coating composition is applied from a solvent medium comprising an effective amount of a mutual solvent for the polymeric electrolyte and the polyepoxy resin, said mutual solvent having a boiling point, at atmospheric pressure, of at least 100°C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.