C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 48/00 (2006.01) C09B 3/14 (2006.01) C09B 47/04 (2006.01) C09B 57/04 (2006.01) C09B 67/10 (2006.01) C09D 7/12 (2006.01) C09D 11/00 (2006.01)
Patent
CA 2255224
This invention relates to a process for preparing pigment compositions by conditioning an organic pigment, at about 50 to about 200°C, with (1) at least about 0.1 % by weight, relative to the organic pigment, of one or more surfactants of formula (1) Image wherein R1 ~is a C8-C30 aliphatic group optionally having one or more carbon atoms in the main chain replaced with -O-, -S-, -CONH-, -NHCO-, -CH=CH-, C5-C7 cycloalkylene, phenylene, or -OSi(C1-C4 alkyl)2-, R2 ~is hydrogen, C1-C6 alkyl, or C1-C6 hydroxyalkyl, R3 ~is hydrogen, C1-C6 alkyl, or C1-C6 hydroxyalkyl, or R2 and R3 ~together are C4-C7 alkylene, and X ~is a direct bond, or X and R2 form a five- to seven- membered heterocyclic ring (and R3 can form a double bond in X), or X, R2, and R3 together with the N-oxide nitrogen atom represent a bicyclic heterocycle, and (2) about 1 to about 100 parts by weight, per part by weight of the organic pigment, of a liquid in which the organic pigment is substantially insoluble.
Sandefur Charles W.
Shannon Charles E.
Thompson Brian L.
Corporation Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Sun Chemical Corporation
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