A water-swellable hot-melt adhesive

Details A water-swellable hot-melt adhesive A water-swellable hot-melt adhesive

H - Electricity

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B

H01B 7/28 (2006.01) G02B 6/44 (2006.01) H01B 7/288 (2006.01)

Patent

CA 2274649

Thermoplastic compositions based on a water-insoluble component of one or mare thermoplastic copolymers and one or more resins with a saponification number and a water-soluble or water-dispersible component and a water-swellable component from the class of superabsorbers are suitable as water-swellable hotmelt adhesives. Such water-swellable hotmelt adhesives are preferably used for the production of watertight constructions, more particularly for the production of longitudinally watertight cable constructions.

Des matières thermoplastiques à base d'un constituant hydro-insoluble d'un ou de plusieurs copolymères thermoplastiques et d'une ou de plusieurs résines avec un indice de saponification, ainsi que d'un constituant hydrosoluble ou hydrodispersible et d'un constituant, susceptible de gonflement dans l'eau, de la classe des superabsorbants conviennent comme colles thermofusibles susceptibles de gonflement en présence d'eau. Ces dernières s'utilisent de préférence pour réaliser des structures étanches à l'eau, notamment des structures de câbles étanches à l'eau dans le sens longitudinal.

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