Moisture-impervious panel capable of delayed hydration

Details Moisture-impervious panel capable of delayed hydration Moisture-impervious panel capable of delayed hydration

1991-05-29

1993-01-19

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Impermeabilization

5216914, 405229, 405 50, E02D 3102

Patent

active

051802554

ABSTRACT:
A flexible or rigid panel, and method of making the panel, useful as a water barrier including an intermediate layer of a water-swellable colloidal clay, such as pentonite, sandwiched between two layers of sheet material, such as woven or non-woven fabric, or paperboard, wherein at least one of the sheet material layers has a water-soluble coating material covering substantially the entire outer surface of the sheet material layer. The water-soluble coating is a material that dissolves upon a predetermnined water contact period, having a controlled, predetermined water-solubility so that the intermediate water-swellable clay layer is protected against hydration during installation.

REFERENCES:
patent: 4103499 (1978-08-01), Clem
patent: 4344722 (1982-08-01), Blais
patent: 4787780 (1988-11-01), Harriett
patent: 4877358 (1989-10-01), Ressi de Cervia
patent: 5041330 (1991-08-01), Heerten et al.

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