Process for dispersing pigments and fillers using aminoalkanols

Details Process for dispersing pigments and fillers using aminoalkanols Process for dispersing pigments and fillers using aminoalkanols

1978-08-02

1979-09-11

McCarthy, Helen

Compositions: coating or plastic

Materials or ingredients

106288Q, 106300, 106304, 106308F, 106308N, 106309, C09C 124, C09C 136, C09C 305

Patent

active

041674200

ABSTRACT:
A process for improving the dispersibility of inorganic and organic pigments and fillers which comprises contacting said pigments and fillers with (a) a mixture of aminoalkanols of the formulae ##STR1## wherein R.sub.1 and R.sub.2 are alkyl having 1 to 21 carbon atoms, the sum of the carbon atoms in R.sub.1 and R.sub.2 being 6 to 22, R.sub.3 is hydrogen or methyl, provided there is only one methyl group per (CH).sub.x group, R.sub.4 and R.sub.5 are the same or different and are hydrogen, alkyl having 1 to 4 carbon atoms or hydroxyalkyl having 2 to 4 carbon atoms, x is an integer of from 2 to 6 and y is 0,1,2 or 3, the R.sub.1 --CH--CH--R.sub.2 units in the aminoalkanols being of at least two different chain lengths of from 8 to 24 carbon atoms and the vicinal substituents being distributed statistically along said chain lengths, with the proviso that, if y is 0, R.sub.4 and R.sub.5 are not both hydrogen, or (b) salts, (c) alkoxylation products, and (d) quaternization products of said aminoalkanols, and recovering highly dispersible pigments and fillers.

REFERENCES:
patent: 3457313 (1969-07-01), Baker
patent: 3840382 (1974-10-01), Burke
patent: 3891705 (1975-06-01), Higuchi et al.
patent: 3928276 (1975-12-01), Linden et al.
patent: 3928422 (1975-12-01), Sundby

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