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US 7,094,283 B2Granted
Bituminous product and process for preparing it
AssigneeInnophos, Inc.
InventorsDominique Dupuis, Gilles Orange
Life of this patent
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Abstract
The subject of the present invention is a process for preparing a bituminous product, characterized in that a compound based on a phosphoric or polyphosphoric acid supported on a mineral oxide of high porosity is used. The subject of the invention is also the bituminous product that can be obtained by the above process, and its uses.
Claims8
A method for preparing a bituminous product comprising the steps of:
- heating bitumen to a temperature of from about 110° C. to about 200° C.;
- and
- adding a sufficient amount of the composition comprising:
- an acid component selected from the group consisting of phosphoric acid, polyphosphoric acid, and combinations thereof;
- and
- a mineral oxide support component, wherein the mineral oxide is a high porosity mineral oxide;
- to said bitumen while stirring to obtain a bituminous product having improved crack resistance and deformation properties.
4 more elements
A method for preparing a bituminous product comprising the steps of:
- heating bitumen to a temperature of from about 110° C. to about 200° C.;
- and
- adding a sufficient amount of the composition comprising:
- an acid component selected from the group consisting of phosphoric acid, polyphosphoric acid, and combinations thereof;
- and
- a mineral oxide support component, wherein the mineral oxide is a high porosity mineral oxide;
- to said bitumen while stirring to obtain a bituminous product having improved crack resistance and deformation properties;
- and
- adding aggregates into the mixture while stirring.
6 more elements
A method for preparing a bituminous product comprising the steps of:
- mixing water bitumen, and an emulsifier at a temperature from about 15° C. to about 25° C.;
- adding a sufficient amount of the composition comprising:
- an acid component selected from the group consisting of phosphoric acid, polyphosphoric acid, and combinations thereof;
- and
- a mineral oxide support component, wherein the mineral oxide is a high porosity mineral oxide;
- to said bitumen while stirring to obtain a bituminous product having improved crack resistance and deformation properties;
- spreading the emulsion in order to obtain a uniform layer;
- drying the emulsion;
- and
- breaking the bitumen emulsion.
7 more elements
A method for preparing a bituminous product comprising the steps of:
- heating bitumen to a temperature of from about 110° C. to about 200° C.;
- and
- adding a sufficient amount of the composition comprising:
- an acid component selected from the group consisting of phosphoric acid, polyphosphoric acid, and combinations thereof;
- and
- a mineral oxide support component, wherein the mineral oxide is a high porosity mineral oxide;
- to said bitumen while stirring to obtain a bituminous product having improved crack resistance and deformation properties;
- mixing with water, and an emulsifier;
- spreading the emulsion in order to obtain a uniform layer;
- drying the emulsion;
- and
- breaking the bitumen emulsion.
9 more elements
Dependencies are inferred from the claim text.