Method of making a water barrier panel

Patent 4139588 Issued on February 13, 1979. Estimated Expiration Date:

March 16, 1998. 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

2892804

3111006

3186896

3705838

3772893

Absorbent product containing flocculated clay mineral aggregates
Patent #: 3935363
Issued on: 01/27/1976
Inventor: Burkholder , et al.

Soil sealing method
Patent #: 3986365
Issued on: 10/19/1976
Inventor: Hughes

Method and composition for preventing water contaminated with industrial waste seeping through soil containing said water
Patent #: 4021402
Issued on: 05/03/1977
Inventor: Clem

Water barrier panel Patent #: 4048373
Issued on: 09/13/1977
Inventor: Clem

Inventor

Clem, Arthur G.

Assignee

American Colloid Company

Application

No. 05/887291 filed on 03/16/1978

US Classes:

264/232, DISPARATE TREATMENT OF ARTICLE SUBSEQUENT TO WORKING, MOLDING, OR SHAPING106/900, SOIL STABILIZATION264/261, Uniting spaced preforms, by introducing fluent material therebetween264/267, Against inner surface of hollow preform264/349, MISCELLANEOUS524/447Kaolin or bentonite

Examiners

Primary: Silverberg, Sam

Attorney, Agent or Firm

Anderson; Richard H.

International Classes

B32B 3/28 (20060101)
E02D 31/00 (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.