Powdered, highly concentrated and stably dispersible dye formulations
AssigneeBASF SE
InventorsEwald Daubach, Heinz Saukel, Leonhard Von Rambach
Life of this patent
Estimating the term…
Loading patent…
AssigneeBASF SE
InventorsEwald Daubach, Heinz Saukel, Leonhard Von Rambach
Estimating the term…
Powdered, highly concentrated and stably dispersible dye formulations which are substantially devoid of dye agglomerates, which contain dyes which are not soluble in water such as disperse dyes or vat dyes, anionactive dispersing agents and (as stabilizing agent) from 2 to 30% by weight based on the dye of a polyethylene oxide having a molecular weight of from 200 to 1000 or a reaction product which has been obtained from a. C.sub.6 to C.sub.20 fatty alcohols; B. alkylphenols of C.sub.4 to C.sub.12 in the alkyl; C. C.sub.14 to C.sub.20 fatty amines; D. castor oil or hydrogenated castor oil; E. C.sub.14 to C.sub.20 fatty acids; or F. natural resin acids with from 2 to 80 moles of ethylene oxide per mole of OH or NH.sub.2 groups; or from alkylenediamines of two to five carbon atoms with from 25 to 120 moles of propylene oxide and ethylene oxide per mole of NH.sub.2 groups. The formulations are stable in storage at 60.degree.C and remain devoid of dye agglomerates.
A powdered, highly concentrated and stably dispersible dye formulation which is practically devoid of dye agglomerate and which consists essentially of:
Dependencies are inferred from the claim text.