System for coating a substrate

Coating apparatus – With means to apply electrical and/or radiant energy to work... – Electrostatic and/or electromagnetic attraction or...

Reexamination Certificate

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C118S627000, C118S640000

Reexamination Certificate

active

06887314

ABSTRACT:
A method and apparatus for coating sheet material with thermoset material. In certain embodiments, first and second different induction furnaces are provided, with the coated sheet first proceeding into and through the first furnace, and then into and through the second furnace. The first furnace may be maintained at a temperature less than the second furnace, so that out-gassing of volatile materials is achieved in the first furnace and thereafter heightened cross-linking conversation rates are achieved in the second furnace at higher temperatures.

REFERENCES:
patent: 4051809 (1977-10-01), Zickar et al.
patent: 4325982 (1982-04-01), Gillette et al.
patent: 5176755 (1993-01-01), Winkle et al.
patent: 5439704 (1995-08-01), Sankaran et al.

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