Pigment compositions
AssigneeImerys Minerals Limited
InventorsJanet Preston, Christopher Nutbeem, Benny Hallam, Anthony Lyons, Roger Wygant, Philip Coulter
Life of this patent
Estimating the term…
Abstract
A pigment composition may include an inorganic particulate material, a multivalent metal salt, and a non ionic dispersant. A substrate may be coated with an aqueous coating composition including the pigment composition. The substrate may be a paper product.
Claims30
A pigment composition comprising an inorganic particulate material, a multivalent metal salt and a non ionic dispersant.
4-8. (canceled)
10-11. (canceled)
13-14. (canceled)
19-24. (canceled)
(canceled)
A pigment composition comprising an inorganic particulate material and calcium chloride, wherein the inorganic particulate material is selected from one or more of:
- magnesium carbonate, dolomite, gypsum, a hydrous kandite clay an anhydrous kandite clay, talc or mica.
32-37. (canceled)
39-42. (canceled)
47-62. (canceled)
64-75. (canceled)
Dependencies are inferred from the claim text.