Moisture-impervious water-swellable clay-containing...

Details Moisture-impervious water-swellable clay-containing... Moisture-impervious water-swellable clay-containing...

2006-10-10

2006-10-10

Sanders, Kriellion (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S447000, C428S451000, C428S454000

Reexamination Certificate

active

07119137

ABSTRACT:
A water-swelling composition adapted to be secured to an area of potential water flow in the form of a flexible cohesive mass comprising about 10% to about 90% by weight of a water-swellable layered material; about 1% to about 30% by weight of an elastomer; about 8% to about 65% by weight of a material selected from the group consisting of polypropene, polybutene, and a mixture thereof; and about 0.1% to about 20% by weight of a clay binder selected from group consisting of (1) an onium ion-liberating compound that is ion-exchanged with platelet cations of the layered material, (2) a coupling agent that is reacted with the layered material, and (3) a combination thereof.

REFERENCES:
patent: 4366284 (1982-12-01), Ishido et al.
patent: 4534926 (1985-08-01), Harriett
patent: 4656062 (1987-04-01), Harriett
patent: 4668724 (1987-05-01), Harriett
patent: 4733989 (1988-03-01), Harriett
patent: 4787780 (1988-11-01), Harriett
patent: 4810573 (1989-03-01), Harriett

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