Patent ID: 7888408

Claim:
A treated pigment comprising: (a) an inorganic pigment having a surface; (b) an organic compound comprising a fluoroalkyl group and a hydrocarbon group and having the structure: R H -L-R F wherein R F is a fluorochemical component containing at least one Zerewitinoff hydrogen; R H is selected from an aliphatic group of 1-30 carbons, cycloaliphatic group of 3-30 carbons, an aromatic group of 6-30 carbons, and a group having the structure: R′—(OCH 2 CHR″) x′ , —(OCH 2 CH 2 ) y′ —O—, wherein R′ is H or an aliphatic group of 1-20 carbons, R″ is H or methyl; and x′ and y′ are the same or different integers ranging from 0-20 except that the sum of x′ and y′ is at least 1 when R′ is H, and mixtures thereof; and L is selected from the group CO, isocyanate, and a mixture of polyisocyanates comprising at least three isocyanate groups, the treated pigment having the organic compound as a treatment on the surface of the pigment.