Patent ID: 6024788
Filing Date: 2000-02-15
Classification: C08K,C08L

Abstract:
An asphalt composition comprising an asphalt and an asphalt additive comprising at least one compound having the formula (I), (II) or (III):[R.sup.1 O--(PO).sub.m (EO).sub.n ].sub.x --P(=O)--(OH).sub.y(I)wherein R.sup.1 represents a linear hydrocarbon radical having 8 to 24 carbon atoms or an alkyl-phenyl group having 8 to 24 carbon atoms, PO represents oxypropylene group, EO represents oxyethylene group, m and n represent the number of added molecules, m is a number of 1 to 6, n is a number of 0 to 6;[R.sup.2 O--(PO).sub.m (EO).sub.n ].sub.x --P(=O)--(OH).sub.y(II)wherein R.sup.2 represents an aliphatic hydrocarbon radical having a branched methyl group and having 8 to 24 carbon atoms, PO represents oxypropylene group, EO represents oxyethylene group, m and n represent the number of added molecules, m is a number of 0 to 6, n is a number of 0 to 6;[R.sup.3 O--(PO).sub.m (EO).sub.n ].sub.x --P(=O)--(OH).sub.y(III)wherein R.sup.3 represents an aliphatic hydrocarbon radical having two or more branched methyl groups or at least one branched group including 2 or more carbon atoms and having 8 to 24 carbon atoms, PO represents oxypropylene group, EO represents oxyethylene group, m and n represent the number of added molecules, m is a number of 0 to 6, n is a number of 0 to 6,each of x and y of the formula (I), (II) or (III) being a number of 1 to 2, the sum total of x and y being 3, R.sup.1,R.sup.2 and R.sup.3 being saturated or unsaturated.