Weather-resistant resin coating material and its manufacturing method

• US 20070072977A1
• Filed: 12/20/2005
• Published: 03/29/2007
• Est. Priority Date: 09/27/2005
• Status: Abandoned Application

• Current Assignee: Taiwan Textile Research Institute
• Original Assignee: Taiwan Textile Research Institute
• Inventors: Chen, Hung-Chang, Chiu, Hsien-Yi
• Application Number:
  US11/312,700
• Publication Number:
  US 20070072977A1
• Time in Patent Office: Days
• US Class Current: 524/425
• CPC Class Codes: C08K 3/22 of metals
• CPC Class Codes: C08K 3/26 Carbonates; Bicarbonates
• CPC Class Codes: C08L 29/00 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers

Abstract

A composition of a weather-resistant resin coating material is provided that comprises polyvinyl alcohol, metal oxide nanoparticles, a salt, a cross-linking agent and water. A manufacturing method of a weather-resistant resin coating material is also provided. First, a solution of polyvinyl alcohol and a solution of metal oxide nanoparticles are prepared. Then, these two solutions are mixed to form a mixture solution. A salt and a cross-link agent are added in the mixture solution. Finally, the mixture solution is stirred to form the weather-resistant resin coating material.

Claims

1. A composition of a weather-resistant resin, comprising:

polyvinyl alcohol;

metal oxide nanoparticles;

a salt;

a cross-linking agent; and

water.

2. The composition of a weather-resistant resin of claim 1, wherein an amount of the polyvinyl alcohol in the coating material is about 5˜

40 wt %.

3. The composition of a weather-resistant resin of claim 1, wherein a molecular weight of the polyvinyl alcohol is about 9000˜

400000.

4. The composition of a weather-resistant resin of claim 1, wherein the alkalization ratio of the polyvinyl alcohol is about 79˜

99%.

5. The composition of a weather-resistant resin of claim 1, wherein an amount of the metal oxide nanoparticles in the polyvinyl alcohol is about 1˜

25 wt %.

6. The composition of a weather-resistant resin of claim 1, wherein the metal oxide nanoparticles are silicon oxide, titanium oxide, zirconium oxide, calcium carbonate, zinc oxide or a mixture thereof.

7. The composition of a weather-resistant resin of claim 1, wherein the metal oxide nanoparticles are silicon oxide.

8. The composition of a weather-resistant resin of claim 1, wherein a size of the metal oxide nanoparticles is about 1˜

100 nm.

9. The composition of a weather-resistant resin of claim 1, wherein an amount of the salt in the polyvinyl alcohol is about 5˜

30 mole %.

10. The composition of a weather-resistant resin of claim 1, wherein the salt is a metal salt.

11. The composition of a weather-resistant resin of claim 1, wherein the salt is sodium chloride, magnesium chloride, calcium chloride or a mixture thereof.

12. The composition of a weather-resistant resin of claim 1, wherein the salt is sodium chloride.

13. The composition of a weather-resistant resin of claim 1, wherein an amount of the cross-linking agent in the coating material is about 1˜

10 wt %.

14. The composition of a weather-resistant resin of claim 1, wherein the cross-linking agent is NCO cross-linking agent.

15. A manufacturing method of a weather-resistant resin coating material, comprising:

preparing a solution of polyvinyl alcohol and a solution of metal oxide nanoparticles;

mixing the solution of polyvinyl alcohol and the solution of metal oxide nanoparticles to form a mixture solution;

adding a salt to the mixture solution;

adding a cross-link agent to the mixture solution; and

stirring the mixture solution.

16. The manufacturing method of a weather-resistant resin coating material of claim 15, wherein a size of the metal oxide nanoparticles is about 1˜

100 nm.

17. The manufacturing method of a weather-resistant resin coating material of claim 15, wherein the metal oxide nanoparticles are silicon oxide, titanium oxide, zirconium oxide, calcium carbonate, zinc oxide or a mixture thereof.

18. The manufacturing method of a weather-resistant resin coating material of claim 15, wherein the salt is sodium chloride, magnesium chloride, calcium chloride or a mixture thereof.

19. The manufacturing method of a weather-resistant resin coating material of claim 15, wherein the cross-linking agent is NCO cross-linking agent.

20. The manufacturing method of a weather-resistant resin coating material of claim 15, wherein the steps of mixing or stirring are done by a high-speed shear cut dispersion method.