01.16.06
CABOT PATENTS PROCESS FOR
PREPARING MODIFIED PIGMENTS
Patent No. U.S. 6,916,367 B2
Cabot Corporation has obtained a
patent for a modified pigment
preparation that is comprised of a
pigment having attached a group
comprising the formula -X-Sp-S-
[PI], wherein X is an arylene, heteroarylene,
or alkylene group, Sp is
a spacer group, and PI represents a
polymeric group comprising at least
one ionic or ionizable group comprising
the reaction product of a
polymer having at least one anhydride,
at least one activated carboxylic
acid, or at least one carboxylic
acid or salt thereof and an
alkylamine, arylamine, or alcohol.
PREPARING MODIFIED PIGMENTS
Patent No. U.S. 6,916,367 B2
Cabot Corporation has obtained a
patent for a modified pigment
preparation that is comprised of a
pigment having attached a group
comprising the formula -X-Sp-S-
[PI], wherein X is an arylene, heteroarylene,
or alkylene group, Sp is
a spacer group, and PI represents a
polymeric group comprising at least
one ionic or ionizable group comprising
the reaction product of a
polymer having at least one anhydride,
at least one activated carboxylic
acid, or at least one carboxylic
acid or salt thereof and an
alkylamine, arylamine, or alcohol.