US 5,808,118 AGranted

Surface treatments for titanium dioxide and other industrial pigments

OwnerGeorge Kimball Atkinsoninventor

Life of this patent

Estimating the term…

A pigment additive for improved dispersibility and reduction of photodegradation.

Dependent claims

A surfactant consisting of the product of the simultaneous reaction of:

a Sulfonic Acid, a saturated Fatty Acid and a Polyamine in which the number of amine to acid equivalents is equal.

Dependencies are inferred from the claim text.

C09C 1/3669
Titanium dioxide: treatment with low-molecular organic compounds
C07C 303/38
Of amides of sulfonic acids: by reaction of ammonia or amines with sulfonic acids, or with esters, anhydrides, or halides thereof
C07C 311/05
Having the nitrogen atoms of the sulfonamide groups bound to hydrogen atoms or to acyclic carbon atoms: to acyclic carbon atoms of hydrocarbon…
C09B 67/0088
Non common dispersing agents: cationic dispersing agents

No related US applications are recorded in the indexed filing history.

Loading patent…