Relective polymeric body

Details Relective polymeric body Relective polymeric body

1990-01-11

1992-06-16

Arnold, Bruce Y.

Optical: systems and elements

Light interference

Produced by coating or lamina

359500, 359589, 428213, G02B 528, G02B 530, B32B 702

Patent

active

051229056

ABSTRACT:
A multilayered reflective body which is thermoformable and capable of being fabricated into relatively thick parts while maintaining a uniform reflective appearance is provided. The reflective polymeric body includes at least first and second diverse polymeric materials of a sufficient number of alternating layers of the first and second polymeric materials such that at least 30% of the light incident on the body is reflected. A substantial majority of the individual layers of the body have an optical thickness of at least 0.45 micrometers, and adjacent layers of the first and second polymeric materials differ from each other in refractive index by at least about 0.03. The reflective body may be fabricated into sheets, mirrors, noncorroding metallic appearing articles and parts, reflectors, reflective lenses, and the like.

REFERENCES:
patent: 3711176 (1973-01-01), Alfrey, Jr. et al.
patent: 3759647 (1973-09-01), Schrenk
patent: 3773882 (1973-11-01), Schrenk
patent: 3884606 (1975-05-01), Schrenk
patent: 4310584 (1982-01-01), Cooper et al.
patent: 4540623 (1985-09-01), Im et al.
patent: 4937134 (1990-06-01), Schrenk et al.
Radford et al., "Reflectivity of Iridescent Coextruded Multilayered Plastic Films", Polymer Engineering and Science, May 1973, vol. 13, No. 3.

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