Oligomeric aromatic dispersing agents, method of making same, an

Details Oligomeric aromatic dispersing agents, method of making same, an Oligomeric aromatic dispersing agents, method of making same, an

1989-09-07

1991-08-20

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 90, 524190, 524315, 524356, 524379, 524590, 528 49, 528 74, 528 85, 560 19, 560 26, 560158, 564 48, 564 55, C08G 1872

Patent

active

050414771

ABSTRACT:
An oligomeric aromatic pigment dispersant is the reaction product of a diisocyanate and a diol or diamine. The oligomeric dispersant is comprised of at least 25 weight percent of a compound of the formula: ##STR1## wherein n is an integer of from 3 to 15, AR is a residual aromatic connecting group, DI is a residual organic connecting group, CAP is a capping moiety, and X is a residual connecting group selected from the group consisting of: ##STR2## The oligomeric aromatic dispersant has at least 3 aromatic "heads" and 2 aliphatic or rosin "tails".

REFERENCES:
patent: 3728301 (1973-04-01), Spence et al.

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