INORGANIC DRY POWDER BUILDING COATING AND PREPARING METHOD THEREFOR

• US 20140329951A1
• Filed: 08/10/2012
• Published: 11/06/2014
• Est. Priority Date: 12/28/2011
• Status: Active Grant

• Current Assignee: Qiangte Energy-Saving Materials Co. Ltd.
• Original Assignee: Qiangte Energy-Saving Materials Co. Ltd.
• Inventors: Guo, Silong
• Granted Patent: US 9,688,861 B2
• Time in Patent Office: Days
• US Class Current: 524/417
• CPC Class Codes: C04B 14/04 Silica-rich materials; Silicates
• CPC Class Codes: C04B 14/06 Quartz; Sand
• CPC Class Codes: C04B 14/26 Carbonates
• CPC Class Codes: C04B 14/32 Carbides; Nitrides; Borides ; Silicides
• CPC Class Codes: C04B 2103/0057 added as redispersable powders
• CPC Class Codes: C04B 2103/10 Accelerators; Activators
• CPC Class Codes: C04B 2103/54 Pigments; Dyes
• CPC Class Codes: C04B 2111/00482 Coating or impregnation materials
• CPC Class Codes: C04B 22/0013 Boron compounds
• CPC Class Codes: C04B 22/06 Oxides, Hydroxides C04B22/0013 takes precedence
• CPC Class Codes: C04B 22/126 Fluorine compounds, e.g. silico-fluorine compounds
• CPC Class Codes: C04B 22/16 containing phosphorus in the anion, e.g. phosphates
• CPC Class Codes: C04B 24/2641 Polyacrylates; Polymethacrylates
• CPC Class Codes: C04B 28/26 Silicates of the alkali metals
• CPC Class Codes: C08K 2003/2296 of zinc
• CPC Class Codes: C08K 2003/327 Aluminium phosphate
• CPC Class Codes: C08K 3/22 of metals
• CPC Class Codes: C08K 3/32 Phosphorus-containing compounds
• CPC Class Codes: C08K 3/34 Silicon-containing compounds
• CPC Class Codes: C09D 1/00 Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
• CPC Class Codes: C09D 1/02 : alkali metal silicates
• CPC Class Codes: C09D 1/04 : with organic additives

Abstract

An inorganic dry powder building coating comprises inorganic gel system consisting of alkali metal silicates and hardener, organic re-dispersed emulsoid powder, and may also comprise filler, pigment and auxiliaries. The coating of the present invention has good storage stability, scrub resistance, weather resistance, and is easy to transport. No salting-out and no harmful substances, such as volatile organic compound, benzene, formaldehyde, heavy metal, appear after being solidified to perform film.

Claims

1. An inorganic dry-powdered architectural paint, wherein the inorganic dry-powdered architectural paint comprises:

an alkali metal silicate;

a hardening agent; and

an organic re-dispersible emulsion powder;

wherein, the hardening agent is selected from substances that form a cross-linked consolidation body with the alkali metal silicate.

2. The inorganic dry-powdered architectural paint according to claim 1, wherein the hardening agent is selected from inorganic compounds.

3. The inorganic dry-powdered architectural paint according to claim 2, wherein the hardening agent is one or a mixture of several of fluorosilicate, phosphate, borate, metallic oxide and metal hydroxide.

4. The inorganic dry-powdered architectural paint according to claim 3, wherein the metal of metallic oxide or metal hydroxide is one or more metals selected from IA, IIA, IIIA and IIB, IB groups in Mendeleev'"'"'s periodic table;

the fluorosilicate, phosphate or borate is one or more metal salts, wherein, the metal is selected from IA, IIA, IIIA and IIB, IB groups in Mendeleev'"'"'s periodic table.

5. The inorganic dry-powdered architectural paint according to claim 1, wherein the re-dispersible emulsion powder is obtained from polymer emulsion by drying;

wherein, the polymer is one or a mixture of several of homopolymer, binary copolymer, ternary copolymer from alkene, alkadiene, acrylic acid, acrylic ester, methacrylic acid, methacrylate ester and vinyl aliphatate ester;

further wherein, the vinyl aliphatate ester is represented by R—

CO—

O—

CH═

CH₂, and the R is hydrocarbonyl.

6. The inorganic dry-powdered architectural paint according to claim 1, wherein R is straight or branched C1-C20 alkyl.

7. The inorganic dry-powdered architectural paint according to claim 1, wherein the alkali metal silicate is one or a mixture of several of sodium silicate, potassium silicate and lithium silicate.

8. The inorganic dry-powdered architectural paint according to claim 1, wherein a weight ratio of the alkali metal silicate, the hardening agent, and the re-dispersible emulsion powder is:

9. The inorganic dry-powdered architectural paint according to claim 1, wherein the inorganic dry-powdered architectural paint further contains filler and/or pigment.

10. The inorganic dry-powdered architectural paint according to claim 9, wherein the filler contains one or a mixture of several of silicon oxide, silicate salt, carbonate salt, carbide, sulfate, sulfide, nitride, metal oxide, metal hydroxide and metal.

11. The inorganic dry-powdered architectural paint according to claim 9, wherein the pigment contains one or a mixture of several of titanium pigment, iron oxide red, iron oxide yellow, iron oxide black, lithopone, carbon black, cadmium red, cadmium yellow, lead chromium yellow, chromium oxide green, iron blue, zinc oxide, cobalt blue, and the pigment with a structure of phthalocyanin, azo type pigment, the pigment with a structure of quinacridinone.

12. The inorganic dry-powdered architectural paint according to claim 9, wherein a weight ratio of the components is:

13. The inorganic dry-powdered architectural paint according to claim 1, wherein the inorganic dry-powdered architectural paint further contains an auxiliary suitable for paint field.

14. The inorganic dry-powdered architectural paint according to claim 13, wherein a weight ratio of the components is:

15. A method of producing the inorganic dry-powdered architectural paint according to claim 1, wherein the alkali metal silicate, the hardening agent and the re-dispersible emulsion powder are dry mixed, optionally, together with a pigment powder, and/or a filler powder, and/or an auxiliary powder.