Carbon black preparation for use in mineral binder

DETAILED DESCRIPTION What is claimed is: 1.
A composition suitable for use in preparing a carbon black containing mineral binder of improved weathering stability consisting essentially of an aqueous carbon black mixture including 0.
02 to 0.
4% by weight of the carbon black of a fluorine containing wetting agent.
2.
A composition according to claim 1 wherein the wetting agent is an anion active wetting agent.
3.
A composition according to claim 2 wherein the wetting agent is an alkali metal salt of an arylsulfonic acid perfluoro alkene ether.
4.
A composition according to claim 3 wherein the wetting agent is an alkali metal salt of a phenolsulfonic acid perfluoro alkene ether.
5.
A composition according to claim 4 wherein the perfluoro alkene ether has up to 23 carbon atoms.
6.
A composition according to claim 5 wherein the wetting agent is the perfluorodecenyl ether of the sodium salt of phenolsulfonic acid.
7.
A composition according to claim 3 wherein the wetting agent is present in an amount of 0.
08 to 0.
3% by weight of the carbon black.
8.
A composition according to claim 1 wherein the wetting agent is a nonionic wetting agent.
9.
A composition according to claim 8 wherein the wetting agent is a polyethylene glycol perfluoroalkene ether.
10.
A composition according to claim 9 wherein the wetting agent has the formula C.
sub.
n F.
sub.
2n O(CH.
sub.
2 CH.
sub.
2 O).
sub.
m C.
sub.
n F.
sub.
2n where n is an integer of at least 2 and m is an integer of at least 2.
11.
A composition according to claim 10 wherein n is 2 to 10 and m is 2 to 23.
12.
A composition according to claim 11 wherein n is 10 and m is 23.
13.
A composition according to claim 9 wherein the wetting agent is present in an amount of 0.
08 to 0.
3% by weight of the carbon black.
14.
A composition according to claim 1 wherein the carbon black is a Regular Color Channel black.
15.
A composition according to claim 1 wherein the carbon black is a Fine Color modified furnace black.
16.
A composition according to claim 1 wherein the carbon black is a Medium Color furnace black