Claims
- 1. A chemically modified bitumen composition consisting essentially of the reaction of (a) a bitumen and (b) a chromic complex containing a carboxylato group containing a functional group reactive with the bitumen.
- 2. A composition as defined in claim 1 wherein the functional group is selected from the group consisting of an alkenyl group, an alkyl group substituted with one of an amino group, a mercapto group, a hydroxy group and an epoxy group.
- 3. A composition as defined in claim 1 wherein the chromic complex is a compound having the formula: ##STR4## wherein R is selected from the group consisting of C.sub.2 to C.sub.10 alkenyl group and a C.sub.1 to C.sub.15 alkyl group substituted with a functional group selected from the group consisting of an amino group, a mercapto group, a hydroxy group and an epoxy group.
- 4. A composition as defined in claim 1 wherein the bitumen is asphalt.
- 5. A composition as defined in claim 1 wherein the amount of chromic complex reacted is an amount within the range of 0.001 to 5% by weight based on the weight of the bitumen.
Parent Case Info
This is a division, of application Ser. No. 055,738, filed July 9, 1979, now U.S. Pat. No. 4,251,577.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
2796375 |
Winslow |
Jun 1957 |
|
3963509 |
Doi et al. |
Jun 1976 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
55738 |
Jul 1979 |
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