Iridescent film with thermoplastic elastomeric components
AssigneeThe Mearl Corporation
InventorsRamakrishna S. Shetty, Scott A. Cooper
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Abstract
Improvements in multilayer light reflecting film are effected by the use of a thermoplastic elastomer resin in a system in which two or more resinous materials form a plurality of the layers.
Claims16
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 of which one is a thermoplastic elastomer, the contiguous adjacent layers differing in refractive index by at least about 0.03.
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, the contiguous adjacent layers differing in refractive index by at least about 0.03 wherein each of the different transparent thermoplastic resinous materials is a segmented block copolymer of a terephthalate polymer and a polyester glycol or polyether imide.
Dependencies are inferred from the claim text.