USE OF A SCREEN-PRINTABLE PASTE FOR THE PRODUCTION OF ELECTRICALLY CONDUCTIVE COATINGS ON FLEXIBLE PLASTIC FILMS.

摘要

Electrically conducting pastes suitable for the manufacture of membrane keyboards by the screen printing process consist of 40 to 70% by weight of metal powder (silver, aluminium, copper and mixtures thereof), 5 to 55% by weight of an organic solvent and 5 to 20% by weight of a synthetic resin based on a thermoplastic epoxy or phenoxy resin with a mean molecular weight of 10,000 to 250,000 and an epoxycontent of 0 to 1.