| 摘要 |
PROBLEM TO BE SOLVED: To obtain a cable-filling material which comprises a specific water- absorbing resin dispersion and an organic polyisocyanate, thus is useful for inhibiting water from impregnating into optical fiber cables and electric wire cables. SOLUTION: This cable-filling agent is composed of (A) a water-absorbing resin dispersion prepared by dispersing (i) a water-absorbing resin or its water absorbing gel in (ii) a polyol and (B) a liquid comprising an organic polyisocyanate. The component (i) is prepared by polymerizing water-soluble monomers or their precursors and a crosslinking agent and/or polysaccharide in the component (ii) (a polyol). As a component (ii), are preferably cited polyether-polyol, polyester-polyol, polybutadiene-polyol or the like. The weight proportion of the component (i) is preferably 1-70% based on the total of the components (i) and (ii). |
