Paving compositions and methods for their use
AssigneeBJ Services Company
InventorsRonald M. Matherly, William H. Steiner
Life of this patent
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Abstract
A paving composition is disclosed comprising a bituminous material, such as asphalt, and a reaction product of at least one polycarboxylic acid reacted with at least one polyamine. The composition preferably is substantially free of water. The reaction product can be a diamide compound. The paving composition can further include mineral aggregate. The paving composition can be used in applications such as road construction or repair.
Claims24
A paving composition comprising a bituminous material and a diamide compound, wherein:
- the composition is substantially free of water;
- and
- the diamide compound is represented by:
- if A is hydrogen, B is R2NHR3NH2;
- if A is R2NH2, B is R3NH2;
- R1 is a branched or straight-chain alkyl or aromatic or alkylaromatic group;
- and
- R2 and R3 are the same or different and are a branched chain alkyl, straight-chain alkyl, or —R—NH—R, in which R is a branched chain alkyl with about 1 to about 6 carbon atoms or a straight-chain alkyl with about 1 to about 6 carbon atoms.
A paving composition comprising:
- asphalt;
- a mineral aggregate;
- and
- a diamide compound, wherein:
- the composition is substantially free of water;
- and
- the diamide compound is represented by:
- if A is hydrogen, B is R2NHR3NH2;
- if A is R2NH2, B is R3NH2;
- R1 is a branched or straight-chain alkyl or aromatic or alkylaromatic group;
- and R2, and R3 are the same or different and are a branched chain alkyl, straight-chain alkyl, or —R—NH—R, in which R is a branched chain alkyl with about 1 to about 6 carbon atoms or a straight-chain alkyl with about 1 to about 6 carbon atoms.
A method of preparing a paving composition, the method comprising mixing a bituminous material with a diamide compound in the substantial absence of water to prepare a mixture;
- wherein the diamide compound is represented by:
- if A is hydrogen, B is R2NHR3NH2;
- if A is R2NH2, B is R3NH2;
- R1, is a branched or straight-chain alkyl or aromatic or alkylaromatic group;
- and
- R2 and R3 are the same or different and are a branched chain alkyl, straight-chain alkyl, or —R—NH—R, in which R is a branched chain alkyl with about 1 to about 6 carbon atoms or a straight-chain alkyl with about 1 to about 6 carbon atoms.
A method of paving a road, the method comprising:
- obtaining a mixture of a bituminous material and a diamide compound, wherein the mixture substantially lacks water;
- adding a mineral aggregate to the mixture to prepare a paving composition;
- and
- applying the paving composition to a portion of a road;
- wherein the diamide compound is represented by:
- if A is hydrogen, B is R2NHR3NH2;
- if A is R2NH2, B is R3NH2;
- R1 is a branched or straight-chain alkyl or aromatic or alkylaromatic group;
- and
- R2 and R3 are the same or different and are a branched chain alkyl, straight-chain alkyl, or —R—NH—R, in which R is a branched chain alkyl with about 1 to about 6 carbon atoms or a straight-chain alkyl with about 1 to about 6 carbon atoms.
A method of paving a road, the method comprising:
- mixing a bituminous material with a diamide compound in the substantial absence of water to prepare a bituminous mixture;
- adding a mineral aggregate to the bituminous mixture to prepare a paving composition;
- and
- applying th paving composition to a portion of a road;
- wherein the diamide compound is represented by:
- if A is hydrogen, B is R2NHR3NH2;
- if A is R2NH2, B is R3NH2;
- R1 is a branched or straight-chain alkyl or aromatic or alkylaromatic group;
- and
- R2 and R3 are the same or different and are a branched chain alkyl, straight-chain alkyl, or —R—NH—R, in which R is a branched chain alkyl with about 1 to about 6 carbon atoms or a straight-chain alkyl with about 1 to about 6 carbon atoms.
Dependencies are inferred from the claim text.