US 5,928,418 A · Asphalt emulsion

Abstract

An asphalt emulsion comprising water, asphalt, (A) an emulsifier selected from the group consisting of specific aliphatic amines, aminated lignins, imidazolines having a hydrocarbon group having 7 or more carbon atoms, and amidobetaines having a hydrocarbon group having 7 or more carbon atoms, (B) a polyphenolic compound, and (C) at least one member selected from the group consisting of anionic polumeric dispersants, hydroxycarboxylic acids and/or (D) at least one member selected from the group consisting of saccharides, sugar alcohols and polyhydric alcohols, which is excellent in storage stanility, mixability with aggregate and low foaming properties of the emulsion itself, in adherence of the products of breaking thereof to aggregate, and in stripping resistance of the construction executed by the use of the emulsion.

Claims37

Dependent claims

An additive composition for an asphalt emulsion which comprises (B) a polyphenolic compound, and at least one member selected from the group consisting of (C) anionic polymeric dispersants, hydroxycarboxylic acids and water-soluble salts of hydroxycarboxylic acids and (D) saccharides, sugar alcohols and polyhydric alcohols.

A composition for an asphalt emulsion which comprises (A-1) at least one member selected from the group consisting of aliphatic amines represented by the following formula (1):

##STR8## wherein R.sup.1 is a hydrocarbon group or acyl group having 8 to 22 carbon atoms;
R.sup.2 is a hydrocarbon group having 8 to 22 carbon atoms, a hydrogen atom or a group represented by the formula:
(AO).sub.m --H wherein AO represents an oxyalkylene group having 2 or 3 carbon atoms;
and m represents a number of 1 to 30;
R.sup.3 is a hydrogen atom or a group represented by the formula:
(AO).sub.m --H wherein AO and m are those as the above definitions;
R.sup.4 is a hydrogen atom or a group represented by the formula:
(AO).sub.m --H wherein AO and m are those as the above definitions;
A is an ethylene group or a propylene group;
and p is an integer of 2 to 5, aminated lignins, imidazolines having a hydrocarbon group having 7 or more carbon atoms, betaines having a hydrocarbon group having 7 or more carbon atoms and amidobetaines having a hydrocarbon group having 7 or more carbon atoms;
and (B) a polyphenolic compound.

8 more elements

A composition for emulsification which comprises water, (A-1) at least one member selected from the group consisting of aliphatic amines represented by the following formula:

##STR9## wherein R.sup.1 is a hydrocarbon group or acyl group having 8 to 22 carbon atoms;
R.sup.2 is a hydrocarbon group having 8 to 22 carbon atoms, a hydrogen atom or a group represented by the formula:
(AO).sub.m --H wherein AO represents an oxyalkylene group having 2 or 3 carbon atoms;
and m represents a number of 1 to 30;
R.sup.3 is a hydrogen atom or a group represented by the formula:
(AO).sub.m --H wherein AO and m are those as the above definitions;
R.sup.4 is a hydrogen atom or a group represented by the formula:
(AO).sub.m --H wherein AO and m are those as the above definitions;
A is an ethylene group or a propylene group;
and p is an integer of 2 to 5, aminated lignins, imidazolines having a hydrocarbon group having 7 or more carbon atoms, betaines having a hydrocarbon group having 7 or more carbon atoms and amidobetaines having a hydrocarbon group having 7 or more carbon atoms;
and (B) a polyphenolic compound.

8 more elements

Dependencies are inferred from the claim text.

Asphalt emulsion

Life of this patent

Asphalt emulsion

Life of this patent

Abstract

Claims37