CABOT PATENTS PROCESS FOR
PREPARING MODIFIED PIGMENTS
Patent No. U.S. 6,833,026 B2
Cabot Corp. has received a patent
for a process for preparing a modified
pigment comprising the step of
combining, in any order, a pigment
having attached an electrophilic
group and a thiol reagent comprising
at least one-SH group and at
least two ionic or ionizable groups.