Back to results
US 8,273,171 B2Granted
Pearlescent pigment
AssigneeNippon Sheet Glass Co., Ltd.
InventorsTakeaki Kitamura, Juichi Ino
Life of this patent
Estimating the term…
Abstract
A pearlescent pigment (100) includes: a flaky substrate (10); a titanium dioxide layer (20) that is formed on the flaky substrate (10); and an oxazoline compound layer (40) that is formed on the titanium dioxide layer (20) with the titanium dioxide layer (20) being interposed between the flaky substrate (10) and the oxazoline compound layer (40), and serves as a top surface of the pearlescent pigment (100).
Claims12
A pearlescent pigment comprising:
- a flaky substrate;
- a first layer that contains at least one material selected from a group consisting of titanium dioxide and iron oxide, wherein the first layer is formed on the flaky substrate;
- a second layer that contains a compound having an oxazoline group, wherein the second layer is formed on the first layer being interposed between the flaky substrate and the second layer, and the second layer serves as a top surface of the pearlescent pigment;
- and
- a third layer that contains a polyvalent metal compound, wherein the third layer is provided between the first layer and the second layer, and the third layer is free from a hydroxide or a hydrated oxide of aluminum,
- wherein the compound having the oxazoline group in the second layer and the polyvalent metal compound in the third layer form a chelate.
3 more elements
Dependencies are inferred from the claim text.