Process for impregnating porous materials

Details Process for impregnating porous materials Process for impregnating porous materials

B - Operations, Transporting

05

D

117/112

B05D 3/02 (2006.01) B27K 3/02 (2006.01) B27K 3/08 (2006.01)

Patent

CA 1317826

ABSTRACT OF THE DISCLOSURE A new method for the impregnation of porous materials by solutions, especially solutions which impart desirable physical, electrical, chemical and other properties to the porous material, is disclosed. Microwave energy inductively heats the liquid moisture contained within the porous material for a prescribed time, in such a manner so as to rapidly convert the liquid moisture in the inner portion of the porous material to gaseous moisture. The gaseous moisture drives the remaining liquid moisture to the surface of the porous material. The porous material is quickly cooled and the desired solution applied to the surface of the porous material immersing or coating. The gaseous moisture contained in the outer portion of the porous material condenses to liquid moisture thereby creating a relative vacuum which induces the solution to impregnate the porous material.

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