Water-swelling composition

Details Water-swelling composition Water-swelling composition

1987-05-13

1988-09-27

Lilling, Herbert J.

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

Synthetic resins

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

524 45, 524 47, 524 52, 524 53, 524503, 524507, 525 5426, 525 58, 525123, C08L 2904

Patent

active

047742844

ABSTRACT:
There is disclosed a water-swelling composition which comprises polyolefinpolyol-ethylene oxide addition product, a water-absorbing polymer and an isocyanate. The composition contains a water-absorbing polymer in an amount of from 5 to 200 parts by weight and an isocyanate in an amount of from 5 to 50 parts by weight, per 100 parts by weight of a polyolefinpolyol-ethylene oxide addition product. The composition can be used as a sealant in places which must be water or moisture tight in vehicles, buildings and various machines since it is capable of speedily swelling when contacted with water.

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