Water-swelling composition

Details Water-swelling composition Water-swelling composition

C - Chemistry, Metallurgy

09

K

31/80.1

C09K 3/10 (2006.01) C08G 18/40 (2006.01) C08G 18/62 (2006.01) C08L 29/04 (2006.01) C08L 33/02 (2006.01) C08L 33/20 (2006.01) C08L 75/04 (2006.01)

Patent

CA 1274681

ABSTRACT OF THE DISCLOSURE There is disclosed a water-swelling composition which comprises a low molecular polyolefinpolyol-ethylene oxide addition product, a water-absorbing polymer and an iso- cyanate. The composition contains a water-absorbing polymer in an amount of from 5 to 200 parts by weight and an iso- cyanate in an amount of from 5 to 50 parts by weight, per 100 parts by weight of a low molecular 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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