| 摘要 |
A COVER TAPE (1) FOR PACKAGING ELECTRONIC ELEMENTS CAPABLE OF BEING HEAT-SEALED TO A POLYCARBONATE CARRIER TAPE (7) HAVING REGULARLY FORMED POCKETS FOR CONTAINING ELECTRONIC ELEMENTS, WHICH COVER TAPE (1) COMPRISES (A) A SUBSTRATE LAYER (2) COMPRISING A THERMOPLASTIC RESIN HAVING A LOAD DEFLECTION TEMPERATURE (ASTM D-648) UNDER A LOAD OF 1.82 MPA OF NOT LOWER THAN 60°C, AND (B) A HEAT SEAL LAYER (3) COMPRISING AT LEAST ONE RESIN SELECTED FROM POLYVINYL CHLORIDE RESIN, POLYESTER RESIN, POLYURETHANE RESIN, ACRYLIC RESIN CONTAINING A FUNCTIONAL GROUP AND ETHYLENE COPOLYMER WHICH HAVE A TG OF 30-60°C, AND AN ELECTROCONDUCTIVE FINE POWDER DISPERSED IN SAID RESIN.
|
