Opaque polyester film containing a cyclic olefin copolymer...

Details Opaque polyester film containing a cyclic olefin copolymer... Opaque polyester film containing a cyclic olefin copolymer...

2006-10-17

2006-10-17

Chen, Vivian (Department: 1773)

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

C428S480000, C428S483000, C428S910000, C525S165000, C525S177000

Reexamination Certificate

active

07122239

ABSTRACT:
The invention relates to an opaque, biaxially oriented polyester film comprising at least one base layer, characterized in that at least this base layer contains a cyclic olefin copolymer (COC) in a concnetration of 2 to 60 wt. % in relation to the base layer, the glass transition temperature of said cyclic olefin copolymer (COC) being 70 to 270° C.; and in that at least one surface is provided with a coupling agent.

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