# US 6,429,248 B2 · Coating composition containing electrically-conductive polymer and solvent mixture > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,429,248 B2 - Document ID: US6429248B2 - Status: Granted - Kind: B2 - Application number: 09/880,384 - Filed: 2001-06-13 - Published: 2001-11-22 - Granted: 2002-08-06 - Earliest claimed: 1999-08-30 - Assignees: Eastman Kodak Company - Inventors: Dwight W. Schwark; Debasis Majumdar; Charles C. Anderson; Robert J. Kress - Web page: https://patentgrep.com/patent/US6429248B2 ## CPC - G03G 5/14778: {Polycondensates comprising sulfur atoms in the main chain} - G03C 1/89: Macromolecular substances therefor - G03G 5/14782: {Cellulose and derivatives} - B41M 5/44: characterised by the macromolecular compounds - G03C 1/04: with macromolecular additives; with layer-forming substances - G03C 2001/7952: {Cellulose ester} - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - G03C: PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES (for photomechanical purposes G03F); PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY (photographic processes characterised by the use or manipulation of apparatus classifiable per se in subclass G03B, see G03B; photomechanical production of textured or patterned surfaces G03F; electrophotography, magnetography G03G) - B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P) ## Abstract A coating composition comprising a solution of an electrically-conductive polymer and an organic solvent media wherein the solvents are selected from the group consisting of alcohols, ketones, cycloalkanes, arenes, esters, glycol ethers and their mixtures; the media having a water content of less than 12 weight percent. Such a coating composition provides a means to protect an imaging element against the accumulation of static electrical charges before and after image processing while also providing the element with improved manufacturability and physical properties. ## Claims ### Claim 1 A coating composition comprising a solution of an electronically-conductive polymer and an organic solvent media wherein the solvents are selected from the group consisting of alcohols, ketones, cycloalkanes, arenes, esters, glycol ethers and their mixtures; wherein the organic solvent media has a maximum water content of 10 weight percent. ### Claim 2 (depends on 1) The coating composition of claim 1 wherein the solvents are selected from the group consisting of acetone, methyl ethyl ketone, methanol, ethanol, butanol, propylene glycol monomethyl ether, iso-propanol, propanol, toluene, xylene, methyl isobutyl ketone, n-propyl acetate, cyclohexane and their mixtures. ### Claim 3 (depends on 1) The coating composition of claim 1 wherein the electronically-conductive polymer is selected from the group consisting of a substituted or unsubstituted pyrrole-containing polymer, a substituted or unsubstituted thiophene-containing polymer and a substituted or unsubstituted aniline-containing polymer. ### Claim 4 (depends on 1) The coating composition of claim 1 wherein the electronically-conductive polymer is a substituted thiophene-containing polymer. ### Claim 5 (depends on 1) The coating composition of claim 1 wherein the electronically-conductive polymer is poly(3,4-ethylene dioxythiophene styrene sulfonate). ### Claim 6 (depends on 1) The coating composition of claim 1 wherein the amount of electronically-conductive polymer in the total solids content of the said coating composition is from 0.1-100 weight percent. ### Claim 7 (depends on 1) The coating composition of claim 1 wherein the amount of electronically-conductive polymer is between 2 and 70 weight percent of the total solids content of the said coating composition. ### Claim 8 (depends on 1) The coating composition of claim 1 further comprising a film-forming binder in an amount of up to 99.9 weight percent of the total solids content of the said coating composition. ### Claim 9 (depends on 8) The coating composition of claim 8 wherein the film-forming binder is between 98 and 30 weight percent of the total solids content of the said coating composition. ### Claim 10 (depends on 8) The coating composition of claim 8 wherein the film-forming binder is a cellulose ester. ### Claim 11 (depends on 8) The coating composition of claim 8 wherein the film-forming binder is cellulose diacetate. ### Claim 12 (depends on 1) The coating composition of claim 1 further comprising addenda selected from the group consisting of surfactants, coating aids, dispersing aids, thickeners, coalescing aids, crosslinking agents or hardeners, soluble particle dyes, solid particle dyes, antifoggants, biocides, matte particles, lubricants, pigments and magnetic particles. ### Claim 13 (depends on 1) The coating composition of claim 1 containing total solids in an amount less than or equal to about 10 weight percent of the total coating composition. ### Claim 14 (depends on 1) The coating composition of claim 1 wherein the organic solvent media has a maximum water content of 9 weight percent. ### Claim 15 (depends on 1) The coating composition of claim 1 wherein the organic solvent media has a maximum water content of 8 weight percent. ### Claim 16 (depends on 1) The coating composition of claim 1 wherein the organic solvent media has a maximum water content of 5 weight percent. ### Claim 17 (depends on 1) The coating composition of claim 1 wherein the organic solvent media has a maximum water content of 4 weight percent. ### Claim 18 (depends on 1) The coating composition of claim 1 wherein the organic solvent media has a maximum water content of 2 weight percent.