| 摘要 |
PROBLEM TO BE SOLVED: To obtain a cover tape reduced in the seal temperature dependence and change with the elapse of time of peel strength and excellent in transparency, low temperature sealability and blocking resistance. SOLUTION: The cover tape has an intermediate layer formed using a thermally reversible crosslinkable resin composition and further consists of a biaxially stretched resin layer, the intermediate layer formed using the thermally reversible crosslinkable resin composition and a heat-sealing layer. The heat- sealing layer contains an ethylene/vinyl acetate copolymer resin, a fatty acid amide type blocking inhibitor and a granular blocking inhibitor. The ethylene/ vinyl acetate copolymer resin consists of 0-30 wt.% of an ethylene/vinyl acetate copolymer resin (A) with a glass transition point of 40-<65 deg.C, 0-100 wt.% of an ethylene/vinyl acetate copolymer resin (B) with a glass transition point of 65-<85 deg.C and 0-75 wt.% of an ethylene/vinyl acetate copolymer resin (C) with a glass transition point of 85-<105 deg.C.
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