Toyo Soda Manufacturing Co., Ltd.

Naobumi Fukushi

Hideaki Nakazawa

Tetsuo Iikuni

Junichi Soshizaki

A latex-asphalt emulsion composition comprising a cationic latex prepared by the emulsion-polymerization of a diene in the presence of an emulsifier of an inorganic or organic acid salt of an N-alkylpropylene diaminepolyglycol ether having the formula ##EQU1## wherein R represents a C.sub.12.sub.-20 saturated or unsaturated aliphatic hydrocarbon radical; x, y and z represent 0 or an integer such that 0 &lt; x + y + z .ltoreq. 3; and n represents the integers 2 or 3; and further comprises an alumina sol, asphalt or an asphalt emulsion.

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Tokyo, Japan

Naobumi Fukushi