Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1990-02-21
1991-03-12
Lusignan, Michael
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427426, 4284231, 528 49, B05D 104, B05D 106, B05D 134, B05D 136
Patent
active
049992139
ABSTRACT:
An improved process for applying a two component polyurethane coating composition to a substrate; a stream of a polyol having reactive hydroxyl groups is mixed with a stream of an organic polyisocyanate crosslinking agent to form a blend that is applied to the substrate; the improvement used in this process is as follows:
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E. I. Du Pont de Nemours and Company
Fricke Hilmar L.
Lusignan Michael
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