Process for impregnating

Details Process for impregnating Process for impregnating

1987-11-27

1988-09-20

Lusignan, Michael R.

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

4273855, 427386, 4273898, 4273899, 427391, 4274345, 427439, B05D 118, B05D 302, B05D 312

Patent

active

047724935

ABSTRACT:
A process for impregnating a continuous sheet of glass fibre web, paper, carbon fibre, cloth etc., which comprises feeding the sheet continuously into a closed vessel filled to a suitable height with a polymer solution, immersing the sheet under the surface of polymer solution while causing solvent boiling to occur and solvent vapor bubbles to flow out of the sheet, whereby bubbles of gas, such as air held or absorbed in the sheet during the immersion, are automatically removed from the sheet and then withdrawing the sheet from the vessel.

REFERENCES:
patent: 2050483 (1936-08-01), Brown
patent: 3022802 (1962-02-01), Lewis
patent: 4438159 (1984-03-01), Weber

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