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US 7,993,441 B2Granted
Roadway patching composition
AssigneePatch Management, Inc.
InventorsScott P. Kleiger, Lewis Tarlini
Life of this patent
Estimating the term…
Abstract
An asphalt based mixture, which is an oil and water emulsion, comprises 15-30% V water; 34 to 80% asphalt cement dispersed as asphalt cement droplets; and 20-66% V emulsifiers. Other materials are selectively added to the composition to improve characteristics including stability, viscosity, cohesion, adhesion and resistance to cracking.
Claims9
An asphalt-based mixture comprising, by percent volume (% V):
- 15-30% V water;
- 34-80% V asphalt cement (AC) being dispersed as asphalt cement droplets, the AC selected from the group consisting of:
- AC-5 Asphalt Mixture;
- AC-10 Asphalt Mixture;
- AC-20 Asphalt Mixture;
- and AC-30 Asphalt Mixture;
- 0.15-2.5% V emulsifiers selected from the group consisting of:
- alkyl amines;
- tallow diamine;
- quaternary amines;
- and combinations thereof;
- and
- further comprising:
- between greater than 0% to 3% of fatty amidoamine to promote coating in wet, cold conditions.
11 more elements
An asphalt-based mixture comprising, by percent volume (% V):
- 15-30 water;
- 34-80 asphalt cement (AC) being dispersed as asphalt cement droplets, the AC selected from the group consisting of:
- AC-5 Asphalt Mixture;
- AC-10 Asphalt Mixture;
- AC-20 Asphalt Mixture;
- and AC-30 Asphalt Mixture;
- 0.15-2.5 emulsifiers selected from the group consisting of:
- alkyl amines;
- tallow diamine;
- quaternary amines;
- and combinations thereof;
- and further comprising:
- greater than 0 to 3% V of petroleum hydrocarbon, light aromatic hydrocarbon and medium aromatic hydrocarbon to enhance mechanical stability.
10 more elements
Dependencies are inferred from the claim text.