Rigid foil based on cyclo-olefin copolymer
The invention relates to a rigid, single- or multilayer, unoriented or monoaxially or biaxially oriented film in which at least one layer contains a cycloolefin copolymer, characterised in that the cycloolefin copolymer has an intrinsic modulus of elasticity Ei which has the following dependence on...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The invention relates to a rigid, single- or multilayer, unoriented or monoaxially or biaxially oriented film in which at least one layer contains a cycloolefin copolymer, characterised in that the cycloolefin copolymer has an intrinsic modulus of elasticity Ei which has the following dependence on the glass transition temperature Tg: Ei = (0.0025 GPa/@C] x Tg[@C]) + B[GPa] where B = 2.93 to 3.19.i |
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