Retroreflective sheeting and methods for making same

Details Retroreflective sheeting and methods for making same Retroreflective sheeting and methods for making same

1985-06-20

1986-10-21

Lesmes, George F.

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

Halogen containing compound

350102, 350103, 350105, 350109, 427164, 427180, 427212, 428161, 428323, 428331, 428338, 428339, 428343, 428352, 428354, 4285426, D06N 700, B32B 300

Patent

active

046185186

ABSTRACT:
A retroreflective relatively flexible laminate sheet construction has a thermoplastic web with a smooth light-receiving first side and a second side coextensive with said first side. A retroreflective pattern is formed on the second side. A slurry of granular material is deposited on the second side to cover selected portions of the formed pattern with remaining portions of the formed pattern devoid of the granular material, and said slurry is dried or cured to produce a well-defined pattern. A layer of backcoating material is deposited on the second side to overlay the granular material, the backcoating material contacting the thermoplastic web where no granular material has been deposited, thereby encapsulating the granular material between the second side and the backcoating layer. An added, outer layer provides additional weather protection for the thermoplastic web. Methods are detailed to manufacture the laminate, and compositions of backcoating mixtures also are disclosed.

REFERENCES:
patent: 1691708 (1972-08-01), Egleson
patent: 3684348 (1972-08-01), Rowland
patent: 3810804 (1974-05-01), Rowland
patent: 3830682 (1974-08-01), Rowland
patent: 3924929 (1975-12-01), Holmer et al.
patent: 4025159 (1977-05-01), McGrath
patent: 4073568 (1978-02-01), Heasley

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