PURPOSE: To obtain a repairing material useful for mending asphalt pavement and cracks of asphalt structure, having excellent adhesion and stress transmission, comprising an oxyalkylene group-containing (meth)acrylate and a rubber component in a specific ratio.
CONSTITUTION: (A) 60-95wt.% compound of formula I (R is H or methyl; R' is 2-6C alkylene 4-6C oxaalkylene wherein two or more segments of ≥2C alkylene chains are bonded through an oxygen atom; R" is group of formula II to formula IV; (n) is 0 or 1) is blended with (B) 5-40wt.% rubber component (e.g. butadiene polymer) in 100 pts.wt. total amounts to give a mixed solution. 100 pts.wt. of the mixed solution is mixed with 2 pts.wt. 6% cobalt naphthenate (xylene solution) and 4 pts.wt. cumene hydroperoxide to give a repairing material useful for mending asphalt pavement and cracks of asphalt structure, having excellent adhesion and stress transmission.
KAWAMURA KAZUYUKI
SASAKI KATSUNORI
TASHIRO FUMIO
KOJIMA TAKEO
HOKKAIDO KAIHATSUKIYOKU KAIHAT
HITACHI CHEMICAL CO LTD
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