Back to results
US 2026/0217985 A1Published application
Paint coating formulation and their uses
AssigneeWeg Tintas Ltda
InventorsThiago Elias BASTOS, Luis Augusto KNIS, Diovana Manuela OCKNER
Life of this patent
Estimating the term…
Abstract
A water-soluble epoxy paint coating, wherein the addition of niobium oxide nanoparticles allowed the development of a coating with high anticorrosive performance, applied in low film thickness and with a single coat. The present paint coating is used for application on metallic substrates, focusing on auto parts of vehicles in general, preferably brake discs, drum blocks and brake drums.
Claims17
-13. (canceled)
A paint coating formulation comprising the following components:
- component A, wherein the component A comprises:
- 35-50% of an epoxy resin (1);
- 0.1-0.5% of Epoxy-silane adhesion promoter additive (2);
- 2-3% of solvents and thinners (3);
- 0.5-1% of Additive dispersion and wetting copolymer (4);
- 0.1-0.5% of Antifoam additive with polysiloxanes (5);
- 0.3-0.8% of Thickener Nonionic Additive Polymer (6);
- 31-45% of fillers, pigments, and optionally color concentrates, wherein the pigments are selected from the group consisting of 4-6% titanium dioxide pigment (7), 0.3-0.8% carbon black pigment (8), 15-20% barium sulfate pigment (9), 8-12% aluminum silicate pigment (10), 4-5% strontium phosphosilicate pigment (11), and 0-1% of color concentrate (17);
- 0.5-1% of Silica-based matting additive (12);
- 10-15% of Water (13);
- 0.2-0.6% of Wetting Additive Polyether Siloxane (14);
- 0.5-1% of Amine salts-based flash rust inhibitor additive (15);
- 1.5-2.5% of Sodium Nitrite Solution (16);
- 0.01-0.05% of nanoparticle oxide (18);
- component B, wherein the component B comprises:
- 90-96% of epoxy curing curing agent (19);
- 2-3% of Flash rust inhibitor additive (20);
- 2-7% of Water (21);
- wherein a mixing ratio of the components A and B is 4A×1B.
16 more elements
Dependencies are inferred from the claim text.