Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1974-01-25
1976-04-06
Lesmes, George F.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428332, 428336, 428457, 428458, 428463, 428480, 428535, 428536, 428913, 428914, 428483, 428508, 428511, 106290, 106291, B32B 516, B32B 1520, C09C 164
Patent
active
039491390
ABSTRACT:
Laminar reflective platelets are made by coating a first synthetic resin lamina on a carrier web and providing release means such as a release coat to provide for release of the lamina. A metallic lamina is coated onto the synthetic resin lamina by vapor deposition in vacuum and a third optional synthetic resin lamina may then be coated onto the metal layer. Each of the three laminae has a thickness on the order of one to 3 millionths of an inch. The thus-coated web is immersed in a releasing solvent to activate the release means. The laminate is removed from the carrier by reason of solution or partial solution of the release coat or release means in the solvent. Removal may be aided by mechanical means such as brushing or scraping. The solvent is agitated to reduce the laminar platelets to final size. Laminar platelets thus formed have a thickness of from 0.5 to 5 millionths of an inch; each has a diffuse reflectance of from 75 to 95%, and 90 to 100% pass through a 300 mesh screen. Concentration of the laminar platelets in the solvent may be increased to 50 to 80% as by decantation. Highly reflective sprayable coatings such as lacquers and enamels may be made therefrom.
Weatherable, abrasion-resistant, highly reflective, extremely economical thermally transferable web, commonly referred to as hot stamp tape, is made as a laminate comprising a lamina comprising such platelets and an opaque lamina comprising conventional aluminum pigment and optionally a third lamina comprising a protective coating consisting essentially of methyl methacrylate.
REFERENCES:
patent: 2839378 (1958-06-01), McAdow
patent: 2993806 (1961-07-01), Fisher
patent: 3107198 (1963-10-01), Amborski
patent: 3235395 (1966-02-01), Scharf
patent: 3480500 (1969-11-01), Hotler
patent: 3666516 (1972-05-01), Dunning
patent: 3677792 (1972-07-01), Best
patent: 3697070 (1972-10-01), McAdow
Dunning Richard E.
Rampelberg Victor H.
Avery Corporation
Lesmes George F.
Robinson Ellis P.
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