Stain repellent and VOC eliminating coatings and use thereof

Patent metadata

Field	Value
Publication number	US-9914839-B2
Application number	US-201414503011-A
Country	US
Kind code	B2
Filing date	Sep 30, 2014
Priority date	Sep 30, 2013
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

A coating dispersion or building article can include titanium dioxide, and a dihydrazide. The coating dispersion or building article can further include calcium carbonate, calcined aluminum silicate, acrylic polymers, and a fluoroalkyl polymer.

First claim

What is claimed is:

1. A coating dispersion, the coating dispersion comprising:
water;
titanium dioxide;
calcium carbonate;
calcined aluminum silicate;
acrylic polymers present at an amount not greater than 20 wt % of the coating;
a dihydrazide; and
a fluoroalkyl polymer present at an amount of 0.1 wt % to 5 wt % of the coating, wherein the fluoroalkyl polymer includes a fluoroalkyl methacrylate copolymer.

2. The coating dispersion according to claim 1 , wherein the amount of titanium dioxide is at least 5 wt % of the coating dispersion.

3. The coating dispersion according to claim 1 , wherein the amount of calcium carbonate is at least 18 wt % of the coating dispersion.

4. The coating dispersion according to claim 1 , wherein the amount of calcined aluminum silicate is at least 5 wt % of the coating dispersion.

5. The coating dispersion according to claim 1 , wherein the amount of acrylic polymers is at least 7 wt % of the coating dispersion.

6. The coating dispersion according to claim 1 , wherein the amount of the dihydrazide is at least 0.1 wt % of the coating dispersion.

7. The coating dispersion according to claim 1 , wherein the amount of the a fluoroalkyl polymer is 0.2 wt % to 4 wt % of the coating dispersion.

8. The coating dispersion according to claim 1 , further comprising at least one ingredient selected from the group of Magnesium silicate, anhydrous aluminum silicate, or a mixture thereof.

9. The coating dispersion according to claim 8 , wherein the at least one ingredient is present in an amount of at least 2 wt % of the coating dispersion.

10. The coating dispersion according to claim 1 , further comprising zinc oxide.

11. The coating dispersion according to claim 10 , wherein the zinc oxide is present in an amount of at least 0.2 wt % of the coating dispersion.

Assignees

• Certain Teed Corp

Inventors

• Martin Darran L
• Boyd Alan L

Classifications

• C08K3/34

  Silicon-containing compounds · CPC title

• C09D5/1625 Primary

  organic · CPC title

• C09D5/1606

  characterised by the anti-fouling agent · CPC title

• C08K3/26

  Carbonates; Bicarbonates · CPC title

• C08K5/25 Primary

  Carboxylic acid hydrazides · CPC title