Digital BW, The Print

On Paul Roark's web site, I just came across a very interesting document from Cabot Corporation, which includes data on longevity of that companies pigments.  From a bit of searching, it appears that Cabot is a US chemical company that makes a variety of products, including pigments that other manufacturers use in inks.

Does anyone know anything about what inks contain the Cabot pigments?  Do the MIS inks?  I suspect that this is not something that is widely publicized, but perhaps someone has heard a rumor.

Thanks,
David