Rubbers swellable with water and aqueous solutions and the metho

Details Rubbers swellable with water and aqueous solutions and the metho Rubbers swellable with water and aqueous solutions and the metho

1994-01-31

1995-01-24

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525218, 525225, 525226, 525240, 525241, C08L 2710

Patent

active

053843703

ABSTRACT:
The present invention concerns rubber-based composite materials swellable with water and associated methods of production. A swellable rubber material according to the present invention comprises a vulcanized non-silicone rubber selected from the group consisting of natural rubber, butadiene-styrene rubber, bromobutyl rubber, and ethylene-propylene rubber; and a hydrogel filler cross-linked by a crosslinking agent, wherein the composite material is vulcanizable at a temperature up to 150.degree. C., is thermoformable, possesses shape memory after thermoforming, and is swellable with water or aqueous solutions.

REFERENCES:
patent: 4228205 (1980-10-01), Hudecek et al.
patent: 4575476 (1986-03-01), Podell et al.
patent: 4963623 (1990-10-01), Miller et al.

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