| 摘要 |
PROBLEM TO BE SOLVED: To obtain an aqueous emulsion capable of developing a high adhesiveness by a slight coating amount in a coating type method, by making the emulsion include a copolymer of ethylene-vinyl acetate-alkoxysilyl groups-containing monomers as a copolymer component. SOLUTION: This emulsion contains (A) an ethylene unit, (B) a vinyl acetate unit and (C) an alkoxysilyl group-containing monomer unit which is preferably at least one kind of formula I to formula IV [R<1> to R<3> are each an alkyl; (m) and (n) are each an integer of >=1] in (5/95) to (40/60) weight ratio of units A/B and (0.5/100) to (4/100) weight ratio of units C/B. Thereby, release of construction mortar is suppressed and durability in alkali resistance, etc., is improved and control in execution site is facilitated, because dependence of adhesiveness on coating material is small. |
