Enclosed-lens retroreflective sheeting having tough, weather-res

Details Enclosed-lens retroreflective sheeting having tough, weather-res Enclosed-lens retroreflective sheeting having tough, weather-res

1986-10-10

1988-08-30

McCamish, Marion C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

15624411, 428204, 428325, G02B 5128

Patent

active

047676590

ABSTRACT:
A transparent cover film better protects enclosed-lens retroreflective sheeting and can be applied more economically when it is extruded and is a thermoplastic polymer which has good elongation and minimal elastic memory. Preferred polymers are (a) aliphatic urethanes, (b) copolymers of ethylene or propylene, and (c) homopolymers of ethylene and propylene.

REFERENCES:
patent: 2407680 (1945-03-01), Palmquist et al.
patent: 4511210 (1985-04-01), Tung et al.
patent: 4664966 (1987-05-01), Bailey et al.

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