A bitumen containing composition, comprising bitumen and a phosphate compound, which is obtainable by the esterification of a polyhydric alcohol having at least three hydroxyl groups, with a carboxylic acid having 8-24 carbon atoms, preferably 12-22 carbon atoms, or a derivative thereof, wherein at
A bitumen containing composition, comprising bitumen and a phosphate compound, which is obtainable by the esterification of a polyhydric alcohol having at least three hydroxyl groups, with a carboxylic acid having 8-24 carbon atoms, preferably 12-22 carbon atoms, or a derivative thereof, wherein at least one but not all of the hydroxyl groups are esterified, provided that when the polyhydric alcohol has 5 or more hydroxyl groups then at least two but not all of the hydroxyl groups are esterified, followed by reacting the ester obtained with a phosphatising reagent; wherein the said composition is not a bitumen-in-water emulsion.
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1. A bitumen containing composition comprising bitumen and a phosphate compound, the phosphate compound prepared by the esterification of a polyhydric alcohol having at least three hydroxyl groups, with a carboxylic acid having 8-24 carbon atoms, or a derivative thereof, wherein at least one but not
1. A bitumen containing composition comprising bitumen and a phosphate compound, the phosphate compound prepared by the esterification of a polyhydric alcohol having at least three hydroxyl groups, with a carboxylic acid having 8-24 carbon atoms, or a derivative thereof, wherein at least one but not all of the hydroxyl groups are esterified, provided that when the polyhydric alcohol has 5 or more hydroxyl groups, then at least two but not all of the hydroxyl groups are esterified, followed by reacting the ester obtained with a phosphatising reagent; wherein the said composition is not a bitumen-in-water emulsion. 2. The composition according to claim 1, wherein the phosphated compound has the formula: where Z=—PO3H, H or R—(C═O)—, where R—(C═O)— is an acyl group having 8-24 carbon atoms; and n=0-3; provided that at least one Z is R—(C═O)— and at least one Z is —PO3H, provided that when n=2 or 3 then at least two Z is R—(C═O)—;or the formula: where X=—CH2O—Z or —CH2CH3; Z has the same meaning as in formula I; and provided that at least one Z is —PO3H and at least one Z is R—(C═O)—. 3. The composition according to claim 2, wherein in formula (I), n=0. 4. The composition according to claim 2, wherein in formula (I), n=3. 5. The composition according to claim 2, wherein in formula (II), X is CH2O—Z and Y is Z. 6. The composition according to claim 2, wherein in formula (II), X is —CH2CH3 and 7. The composition according to claim 3, wherein said phosphate compound is prepared by the steps of transesterification of a triglyceride with glycerol, followed by reaction with a phosphatising reagent. 8. The composition according to claim 1, further comprising less than 5 wt % water. 9. The composition according to claim 8, wherein the phosphate compound is 0.05 to 5% by weight, based on the amount of bitumen. 10. A method for strengthening adhesion between bitumen and aggregates comprising the step of: adding the bitumen containing composition of claim 1 to the said aggregates. 11. An asphalt composition comprising the bitumen containing composition of claim 1 and aggregates. 12. The asphalt composition according to claim 11, comprising from 1 to 25% by weight of the bitumen, and 75 to 99% by weight of the aggregates. 13. A method for paving a road, a sidewalk, a parking lot or an airport runway comprising the step of: applying the asphalt composition of claim 11 to a road surface, a sidewalk surface, parking lot surface, or an airport runway surface. 14. The method according to claim 13, wherein the paying method is a hot-mix or warm-mix paving procedure. 15. A method for paving comprising the steps of: mixing the bitumen composition of claim 1 with aggregates to form a mixture having a temperature of 100-190° C.; andapplying said mixture to a surface. 16. The bitumen containing composition of claim 1, wherein the carboxylic acid has 12-22 carbon atoms. 17. A method for strengthening adhesion between bitumen and aggregates comprising the step of: adding the phosphated compound of claim 1 to the aggregates to form a phosphate compound-aggregate mixture, and thereafter adding the bitumen to the phosphated compound-aggregate mixture. 18. The method of claim 15, further comprising the step of compacting said mixture after it was applied to the surface. 19. A bitumen containing composition comprising bitumen and a phosphate compound, the phosphate compound prepared by the esterification of a polyhydric alcohol having at least three hydroxyl groups, with a carboxylic acid having 8-24 carbon atoms, or a derivative thereof, wherein at least one but not all of the hydroxyl groups are esterified, provided that when the polyhydric alcohol has 5 or more hydroxyl groups, then at least two but not all of the hydroxyl groups are esterified, followed by reacting the ester obtained with a phosphatising reagent, and wherein the phosphated compound has the formula: where Z=—PO3H, H or R—(C═O)—, where R—(C═O)— is an acyl group having 8-24 carbon atoms; and n=0-3; provided that at least one Z is R—(C═O)— and at least one Z is —PO3H, provided that when n=2 or 3 then at least two Z is R—(C═O)—;or the formula: where X=—CH2O═Z or —CH2CH3; Z has the same meaning as in formula I; and provided that at least one Z is —PO3H and at least one Z is R—(C═O)—, and further wherein where n=0 in formula (I), the phosphate compound is prepared by the steps of transesterification of a triglyceride with glycerol, followed by reaction with a phosphatising reagent, and further wherein the composition comprises less than 5 wt % water, and further wherein bitumen is present in an amount of greater than 90 wt %.
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이 특허에 인용된 특허 (4)
Bugdahl Volker (Hanau DEX) Morlock Gerhard (Hanau DEX) Reidt Werner (Hanau DEX) Kerschner Emil (Rodenbach DEX), Binder for coating compositions and its use.
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