Method and apparatus for manufacturing resin-impregnated sheet m

Details Method and apparatus for manufacturing resin-impregnated sheet m Method and apparatus for manufacturing resin-impregnated sheet m

1986-06-27

1988-04-12

Lusignan, Michael R.

Coating processes

Vacuum utilized prior to or during coating

118 50, 118419, 118424, 427296, 4274342, 4274347, B05D 118, B05D 300, B05C 312, C23C 1400

Patent

active

047373830

ABSTRACT:
A resin-impregnated sheet material is manufactured by passing a sheet material through a vacuum space of a reduced pressure sufficiently different from ambient atmospheric pressure for sufficiently deaerating the sheet material at the vacuum space, and impregnating the thus deaerated sheet material with a resin varnish while utilizing the pressure difference between the atmosphere and the vacuum space, the sufficiently deaerated sheet material being impregnated quickly and reliably with the resin varnish to provide the resin-impregnated sheet material of high quality.

REFERENCES:
patent: 3848439 (1974-11-01), Lopata
patent: 4590099 (1986-05-01), Reith

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