Method for making a protective coating on a machine-readable mar

Details Method for making a protective coating on a machine-readable mar Method for making a protective coating on a machine-readable mar

1983-09-28

1986-07-15

Buffalow, Edith

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428204, 428210, 428212, 428426, B32B 300

Patent

active

046006303

ABSTRACT:
In a method of manufacturing, the steps of: providing a workpiece comprising a main body and a machine-readable marking on a portion of the body, depositing on the marking and the surrounding surface an overcoating of a liquid polymeric composition that is curable by exposure to ultraviolet radiation, and then irradiating the liquid overcoating with ultraviolet radiation so that the overcoating cures to a solid nontacky, light-transmitting protective coating. The workpiece, with the cured protective coating thereon, may be subjected to processing steps wherein extraneous matter may adhere to the coating, and then be cleaned leaving the cured coating intact.

REFERENCES:
patent: 2837429 (1958-06-01), Whiting
patent: 2992919 (1961-07-01), Beeler et al.
patent: 4327283 (1982-04-01), Heyman et al.
patent: 4448827 (1984-05-01), Luijben et al.
patent: 4473008 (1984-09-01), Heyman

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