Method of forming a water barrier around foundations

Patent 4103499 Issued on August 1, 1978. Estimated Expiration Date:

May 25, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2898759

3016713

3407552

3772893

Inventor

Clem, Arthur G.

Assignee

American Colloid Company

Application

No. 05/800475 filed on 05/25/1977

US Classes:

405/229, FOUNDATION405/264, Organic52/169.14With waterproofing means; e.g., covering, coating, or lamina

Examiners

Primary: Gilliam, Paul R.
Assistant: Grosz, A.

Attorney, Agent or Firm

Anderson; Richard H.

International Classes

B32B 19/06 (20060101)
B32B 19/00 (20060101)
E02D 31/00 (20060101)
E02D 19/00 (20060101)
E02D 19/12 (20060101)
E02D 31/02 (20060101)

Abstract

A panel is provided forming a water barrier and comprising two opposing spaced sheets having between said spaced sheets a sealant composition comprising bentonite; a water soluble dispersing agent selected from the group consisting of a water-soluble salt of acetic acid, a water-soluble salt of phosphoric acid, and a water-soluble salt of boric acid; and a water-soluble polymer selected from the group consisting of polyacrylic acid, water-soluble salts of polyacrylic acid, hydrolyzed polyacrylonitrile, polyvinyl acetate, polyvinyl alcohol, copolymers of the foregoing, and a copolymer of acrylic acid and maleic anhydride, the amount of water-soluble polymer in said sealant composition being from 0.1% to 3.0%, by weight, and the amount of water-soluble dispersant in said sealant composition being from 0.1% to 3.0%, by weight, the weight ratio of water-soluble dispersant to water-soluble polymer being from 6:1-36. The panel is disposed against a foundation to act as a water barrier, shielding the foundation against water seepage.