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BASE FILM FOR DICING SHEET DICING SHEET INCLUDING SAID BASE FILM AND PROCESS FOR PRODUCING SAID BASE FILM
BASE FILM FOR DICING SHEET DICING SHEET INCLUDING SAID BASE FILM AND PROCESS FOR PRODUCING SAID BASE FILM
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机译：切成薄片的基膜包括说成膜的切成薄片和生产说成膜的过程
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摘要
The substrate film 2 of the dicing sheet comprises a cutting edge restraining layer A and an expanded layer B laminated on one main surface of the cutting edge suppressing layer A, B) has a laminated structure of a plurality of resin-based layered bodies, and the resin-based layered body (B1) disposed most proximal to the cutting-piece inhibiting layer (A) among the plurality of resin-based layered bodies comprises linear polyethylene as a main resin, The resin-based layered body (B2) of at least one resin-based layered body (B1) other than the resin-based layered body (B1) among the plurality of resin-based layered bodies comprises an ethylene- (meth) acrylic acid copolymer as a main resin, Containing resin (a1) which is a thermoplastic resin having at least one kind of a cyclic ring and an aliphatic ring and an acyclic olefinic resin (a2) which is an olefinic thermoplastic resin other than the ring-containing resin (a1). The substrate film 2 of such a dicing sheet is excellent in expandability and resilience.
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