WIRE COATING MEDIUM AND PROCESS FOR PRODUCING THE SAME

• Main Authors: SCHINK, MICHAEL, RIX, GEOFF, KIRWIN, JOHN
• Format: Patent
• Language: English; French; German
• Published: 14.05.2003
• Edition: 6
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CABLES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CONDUCTORS; CORRECTING FLUIDS; DYES; ELECTRICITY; FILLING PASTES; INKS; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

PCT No. PCT/EP96/00839 Sec. 371 Date Nov. 21, 1997 Sec. 102(e) Date Nov. 21, 1997 PCT Filed Mar. 1, 1996 PCT Pub. No. WO96/27643 PCT Pub. Date Sep. 12, 1996The present invention provides wire-coating compositions comprising polyhydric alcohols which are esterified with naphthalenedicarboxylic acid and/or esterifiable derivatives thereof, optionally in a mixture with further dicarboxylic acids and/or their dicarboxylic acid derivatives, catalysts, organic solvents and additives, and optionally imido-containing and/or imido-forming starting materials. The wire-coating compositions of the invention are stable on storage, have good adhesion, especially to copper wires and have desireable thermal pressure and thermal shock. The compositions also have a high solids content at a viscosity which is favorable for processing.