Retroreflective sheet with enhanced brightness

Details Retroreflective sheet with enhanced brightness Retroreflective sheet with enhanced brightness

1986-08-01

1988-08-16

Corbin, John K.

350106, 350165, 350166, G02B 5128, G02B 513, G02B 110, G02B 528

Patent

active

047639857

ABSTRACT:
Retroreflective construction comprising a monolayer of microspheres with associated dielectric mirrors which are hemispherically surrounded by tangentially-oriented, preferably contour-conforming, reflective pigment nacreous flakes. The dielectric mirrors and reflective nacreous pigment flakes cooperate additively substantially without interfering with each other to provide a high brightness retroreflective sheet. The novel sheets retain much of their reflectivity after several launderings or drycleanings and, in some embodiments, can be made very flexible, making them well-suited for use as reflective fabrics.

REFERENCES:
patent: Re30892 (1982-03-01), Bingham et al.
patent: 2407680 (1946-09-01), Palmquist et al.
patent: 2567233 (1951-09-01), Palmquist et al.
patent: 3005382 (1957-11-01), Weber
patent: 3172942 (1959-11-01), Berg
patent: 3190178 (1961-06-01), McKenzie
patent: 3567307 (1971-03-01), Rideout et al.
patent: 3700305 (1972-10-01), Bingham
patent: 3758192 (1973-09-01), Bingham
patent: 4025159 (1977-05-01), McGrath

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