Multilayer light-reflecting film
AssigneeThe Mearl Corporation
InventorsScott A. Cooper, Ramakrishna Shetty, Jules Pinsky
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Abstract
Improvements in multilayer light-reflecting film are effected by the use of thermoplastic polyester as the high refractive index component of a system in which two or more resinous materials form a plurality of layers.
Claims11
A transparent thermoplastic resinous laminate film of at least 10 very thin layers of substantially uniform thickness, said layers being generally parallel, the contiguous adjacent layers being of different transparent thermoplastic resinous materials one of which is a thermoplastic polyester or copolyester resin having a refractive index of 1.55-1.61 and the adjacent resinous material having a refractive index which is lower by at least about 0.03, the contiguous adjacent layers differing in refractive index by at least about 0.03.
Dependencies are inferred from the claim text.