Sheet assembly for forming imaged retroreflective sheeting

Details Sheet assembly for forming imaged retroreflective sheeting Sheet assembly for forming imaged retroreflective sheeting

1979-11-30

1981-05-19

Corbin, John K.

350 97, G02B 5128

Patent

active

042681170

ABSTRACT:
Sheet assembly useful to form graphically imaged retroreflective markings comprises a base retroreflective sheeting and a film overlying the sheeting. The film is visibly distinctive from the base retroreflective sheeting and is held to the sheeting by a layer of pressure-sensitive adhesive. A heat-susceptible low-adhesion layer is interposed between the layer of adhesive and either the sheeting or overlying film. In use of the assembly, graphic symbols are cut in the film, and the background areas of the film manually peeled away. The assembly is then heated, whereupon a firm bond develops at the interface between the non-removed image portions of the film and the base retroreflective sheeting.

REFERENCES:
patent: 3190178 (1965-06-01), McKenzie
patent: 3712706 (1973-01-01), Stamm
patent: 3801183 (1974-04-01), Sevelin et al.
patent: 3877786 (1975-04-01), Booras et al.
patent: 3994086 (1976-11-01), Mizuochi
patent: 4085314 (1978-04-01), Schultz et al.

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