METHOD FOR COATING A FLOOR

• US 20110319558A1
• Filed: 10/16/2009
• Published: 12/29/2011
• Est. Priority Date: 11/17/2008
• Status: Abandoned Application

• Current Assignee: Bwe I Malmo AB
• Original Assignee: Bwe I Malmo AB
• Inventors: Rehnberg, Nicola, Persson, Curt, Lindell, Ronny, Persson, Nils Erik
• Application Number:
  US13/129,138
• Publication Number:
  US 20110319558A1
• Time in Patent Office: Days
• US Class Current: 524/590
• CPC Class Codes: B05D 2503/00 Polyurethanes
• CPC Class Codes: B05D 2530/00 Rubber or the like
• CPC Class Codes: B05D 3/0209 Multistage baking
• CPC Class Codes: B05D 3/0254 After-treatment
• CPC Class Codes: B05D 3/067 Curing or cross-linking the coating
• CPC Class Codes: C04B 2111/60 Flooring materials
• CPC Class Codes: C04B 41/0045 Irradiation; Radiation, e.g. with UV or IR C04B41/0036 takes precedence
• CPC Class Codes: C04B 41/483 Polyacrylates
• CPC Class Codes: C04B 41/4884 Polyurethanes; Polyisocyanates
• CPC Class Codes: C04B 41/502 Water
• CPC Class Codes: C04B 41/52 Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
• CPC Class Codes: C09D 175/04 Polyurethanes
• CPC Class Codes: C09D 175/16 having terminal carbon-to-carbon unsaturated bonds

Abstract

A method for coating a floor, wherein said method comprises applying an aqueous dispersion comprising polyurethane, an acrylate or a hybride or mixture thereof; drying said coating and subjecting the physically dry coating to ultraviolet radiation whereby a cured coating is obtained. Also claimed is reactive additives suitable for use in the methods as well as the floor itself.

Claims

1. A method for coating a floor, wherein said method comprises applying a coating based on one or more radiation curable aqueous dispersion(s) comprising one or more polymerisable functional group(s) to a floor;

drying said coating to obtain a physically dry coating; and

subjecting the physically dry coating to electromagnetic radiation,

whereby a cured coating is obtained.

2. The method according to claim 1, wherein the radiation curable aqueous dispersion is selected from the group consisting of a radiation curable polyurethane dispersion, a radiation curable acrylate dispersion, and a hybride or a mixture thereof.

3. The method according to claim 1, wherein the electromagnetic radiation is UV radiation having a wavelength between about 200-500 nm.

4. The method according to claim 1, wherein the floor is cleaned and/or undressed before applying said coating.

5. The method according to claim 1 wherein said one or more radiation curable aqueous dispersion(s) comprises one or more additive.

6. The method according to claim 1, wherein a reactive additive is added.

7. The method according to claim 6, wherein said reactive additive is selected from the group consisting of a poly- or oligoisocyanate based additive, an aziridine based additive, a silicon derivative, a silicon product having reactive functionalities, old a carbodiimide additive, and any combination thereof.

8. The method of according to claim 7, wherein the poly- or oligoisocyanate based additive comprises one or more additional functional group(s).

9. The method of claim 7, wherein said silicon additive is a radically polymerisable silicon derivative and said silicon product having reactive functionalities is selected from the group consisting of a silica sol, silica particles treated with an unsaturated alkoxysilane, and a mercaptosilane.

10. The method of claim 9, wherein said radically polymerisable silicon derivative is selected from 3-(trimethoxysilyl)propyl methacrylate, 3-(triethoxysilyl)propyl methacrylate, vinyltrimethoxysilane, vinyltriethoxysilane, allyltrimethoxysilane, (methacryloxymethyl) methyldimethoxysilane, and an adduct of an aminosilane and an acrylate;

and said silica sol or silica particles treated with an unsaturated alkoxysilane.

11. The method of claim 10, wherein said aminosilane is one of 3-(trimethoxysilyl)propylamine, 3-(triethoxysilyl)propylamine, and (dimethoxymethylsilyl) methylamine;

and said acrylate is one of tripropylene glycol diacrylate, trimethylolpropane triacrylate, and pentaerythritol pentaethoxylate tetraacrylate.

12. The method according to claim 1, wherein the floor is selected from one of biologically derived flooring materials and mineral derived flooring materials.

13. The method according to claim 12, wherein the biologically derived flooring material is selected from at least one of woods, cork, and bamboos;

and the mineral derived flooring material is selected from one of concrete, terrazzo, ceramic tile, grout, and plastics.

14. The method according to claim 1, wherein one or more polymerisable functional group(s) is selected from acrylates, methacrylates, methacrylamides, other vinyl derivatives, and thiolene components.

17. A coated floor obtainable by a method according to claim 1.

18. The floor according to claim 17, wherein the floor is at least one of cleaned and undressed before applying said coating.

15. A reactive additive wherein the reactive additive is one of a poly- or oligoisocyanate based additive having one or more additional reactive group(s).

16. The reactive hardener according to claim 15, wherein said one or more additional reactive group(s) is selected from an acrylate group and a silyl group.