Modifier for porous materials and method of modifying porous mat

Details Modifier for porous materials and method of modifying porous mat Modifier for porous materials and method of modifying porous mat

1994-02-25

1995-09-12

Green, Anthony

Coating processes

With post-treatment of coating or coating material

Chemical agent applied to treat coating

4273978, 4274192, 428245, 4285371, 4285375, 428702, B05D 310

Patent

active

054495334

ABSTRACT:
The invention provides modified stonework material as well as modified woven fabric, paper, and ligneous materials with improved water-proof, dust-prevention, wear-resistance, and others. These porous materials are rendered non-porous by causing aqueous solution of alkali silicate to penetrate into such porous materials to produce calcium silicate and colloidal silicic acid in the presence of ammonium ions and halogen ions, the solution of which fills the voids in the material perfectly to render it non-porous.

REFERENCES:
patent: 4312673 (1982-01-01), Neely, Jr.
patent: 4528149 (1985-07-01), Wichelhaus et al.
patent: 4878947 (1989-11-01), Helferich

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