| 摘要 |
Disclosed is a coextruded film comprising a transparent polymeric inner core layer of thickness less than 250 mum and two peelable outer polymeric layers wherein the inner layer constitutes a low enough proportion, less than 40%, of the total film thickness and exhibits a low enough melt flow index value to achieve a birefringence of not more than 1x10<-4 >nm/nm.
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