Donald K. Johnes
General Contractor at Crooked Crk Rd, Hendersonville, NC
License number
North Carolina 34844
Renew Date
Dec 31, 1999
Category
General Contractor
Type
Building
Address
Address
415 Crooked Creek Rd, Hendersonville, NC 28739
Phone
(704) 692-3232
Professional information
Antistatic Coating Composition In A Conductive Substrate And Process Of Manufacture
US Patent:
5554447, Sep 10, 1996
Filed:
Jun 5, 1995
Appl. No.:
8/463611
Inventors:
John H. Bayless - Hendersonville NC
Donald K. Johnes - Hendersonville NC
Donald K. Johnes - Hendersonville NC
Assignee:
Sterling Diagnostic Imaging, Inc. - Glasgow DE
International Classification:
B32B 2708, G03C 1795
US Classification:
428483
Abstract:
A conductive substrate for use in a photographic element comprises a polyethylene terephthalate support coated with 0. 01-10 g/m. sup. 2 of a conductive layer having a low surface energy during coating and a high surface energy after coating which is the reaction product of (i) a conductive crosslinkable polymer with charge carrying groups such as sulfonic acid groups, (ii) a volatile amine and (iii) a crosslinking agent such as a polyfunctional aziridine.
Coating Substrate With Crosslinked Conductive Polymer
US Patent:
5620749, Apr 15, 1997
Filed:
Aug 1, 1996
Appl. No.:
8/691128
Inventors:
John H. Bayless - Hendersonville NC
Donald K. Johnes - Hendersonville NC
Donald K. Johnes - Hendersonville NC
Assignee:
Sterling Diagnostic Imaging, Inc. - Glasgow DE
International Classification:
B05D 302, B05D 306, B05D 702, B05D 704
US Classification:
4273935
Abstract:
A process for forming a conductive substrate comprises coating onto a polyethylene terephthalate substrate an aqueous coating solution containing a conductive crosslinkable polymer with charge carrying groups such as sulfonic acid, sulfuric acid ester or quaternary ammonium salt groups attached to a polymerized ethylenic monomer backbone, a volatile amine in an amount to maintain a pH of above 7. 0 and a crosslinking agent such as a polyfunctional aziridine, removing water and the volatile amine which decreases the pH to below 7. 0 wherein a reaction between the crosslinkable groups of the polymer and the crosslinking agent is initiated to form a crosslinked conductive polymer film.