Method of sealing a porous block

Details Method of sealing a porous block Method of sealing a porous block

1975-12-23

1977-03-22

Kaplan, Morris

Coating processes

Vacuum utilized prior to or during coating

Organic base

118 50, 264102, 427430R, B05D 300

Patent

active

040138097

ABSTRACT:
A block to be consolidated, which is contained in a bag made of liquid tight flexible sheet material, is enclosed in a pressure tight container with the open mouth of the bag open upwardly. While the vacuum is maintained in the container, a liquid medium is supplied into the container and around the bag until the liquid medium reaches a level lower than the level of the open mouth of the bag, after which the container is evacuated into a vacuum state, and then a fluid hardenable resin composition is fed into the bag, through its open mouth, until the block is immersed in said composition. Thereafter, the vacuum is released from the container, so that the fluid resin composition deeply penetrates into all the cavities of the block which are open to the outside, and finally the resin composition is allowed to harden, whereby a consolidated block is obtained.

REFERENCES:
patent: 1594124 (1926-07-01), Shrader
patent: 2276004 (1942-03-01), Vidal et al.
patent: 2878140 (1959-03-01), Barr
patent: 2946700 (1960-07-01), Day
patent: 3532575 (1970-10-01), Nagata et al.

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