Multicomponent, multilayer polymeric reflective bodies

Details Multicomponent, multilayer polymeric reflective bodies Multicomponent, multilayer polymeric reflective bodies

1992-02-10

1993-11-16

Arnold, Bruce Y.

Optical: systems and elements

Light interference

Produced by coating or lamina

359589, 359883, G02B 508, G02B 528

Patent

active

052628949

ABSTRACT:
A multicomponent, multilayered, highly reflective polymeric body which is thermoformable and capable of being fabricated into films, sheets and a variety of parts while maintaining a uniform reflective appearance is provided. The reflective polymeric body includes at least first, second, and third diverse polymeric materials having a sufficient number of alternating layers of the polymeric materials such that a portion of the light incident on the body is reflected. A sufficient number of the individual layers of the body have optical thicknesses of not more than 0.09 micrometers or not less than 0.45 micrometers, such that there is an absence of visibly perceived color in the body. The polymeric materials having the highest and lowest refractive indices differ from each other in refractive index by at least about 0.03. The reflective body may be fabricated into mirrors, noncorroding metallic appearing articles and parts, reflectors, reflective lenses, and the like.

REFERENCES:
patent: 3560076 (1971-02-01), Ceppi
patent: 4187336 (1980-02-01), Gordon
patent: 4793669 (1988-12-01), Penilloux
patent: 4937134 (1990-06-01), Schrenk et al.
patent: 5091244 (1992-02-01), Biornard
patent: 5149578 (1992-09-01), Wheatley et al.
patent: 5168003 (1992-12-01), Proscia

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