Method for producing coatings of low gloss

Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board

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20415919, 20415922, 20415923, 427 36, 427 38, 428482, 428522, B05D 306, C08G 6302

Patent

active

041706633

ABSTRACT:
Hard, mar resistant and abrasion resistant coatings of low gloss are prepared by exposing a coating composition containing an oxygen inhibitable, radiation curable, organic material and an ultraviolet light absorbing pigment to radiation in three stages. In the first stage, the coating composition is exposed to ionizing radiation in an atmosphere containing a cure inhibiting amount of oxygen. In the second stage, it is exposed to ultraviolet light in an atmosphere free of a cure inhibiting amount of oxygen. In the third stage, the coating composition is exposed to ionizing radiation.

REFERENCES:
patent: 3918393 (1975-11-01), Hahn
patent: 3926639 (1975-12-01), Rosen et al.
patent: 3935330 (1976-01-01), Smith et al.
patent: 4025407 (1977-05-01), Chang et al.
patent: 4048036 (1977-09-01), Prucnal

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