Filled asphalt emulsions containing betaine emulsifier

Disclosed are filled oil-in-water asphalt emulsions which remain homogeneous for prolonged periods of time notwithstanding the presence of particulate filler that might be expected to break the emulsions. The emulsions contain asphalt dispersed as the discontinuous phase in an aqueous continuous pha...

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Bibliographische Detailangaben
Hauptverfasser:	MILBURN, CHARLES R, CHATTERJEE, ROGER K
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	Disclosed are filled oil-in-water asphalt emulsions which remain homogeneous for prolonged periods of time notwithstanding the presence of particulate filler that might be expected to break the emulsions. The emulsions contain asphalt dispersed as the discontinuous phase in an aqueous continuous phase, particulate filler, and one or more amphoteric emulsifiers selected from the group consisting of compounds of the formulas (a) and (b)R4-(OC3H6)0-1-(C(O)NH(CH2)1-3)0-1-N(Z1) (Z2)0-1-ZCOOX (a)R4-(OC3H6)0-1(C(O)NH(CH2)1-3)0-1-N(Z1) (Z2)0-1-ZSO3XH(b)wherein R4 is C4-24 alkyl or alkylene, f is 1-6, is -H or a cation, Z is (CH2)f, CH2CHOHCH2, or CH2CH2OCH2CH2, and Z1 and Z2 are CfH2f+1 or CfH2fOH, or in (a) Z1 can be -ZCOOX. The emulsions are useful for example in pavement and driveway coatings, pipe sealers, and vehicular undercoatings.