Surface coating system and method of using surface coating system

• US 9,868,862 B2
• Filed: 05/25/2012
• Issued: 01/16/2018
• Est. Priority Date: 05/25/2011
• Status: Active Grant

• Current Assignee: Diversey Incorporated (Sealed Air)
• Original Assignee: Diversey Incorporated (Sealed Air)
• Inventors: Liu, Jia, Cypcar, Christopher C.
• Primary Examiner(s): FLETCHER III, WILLIAM P
• Application Number:
  US14/119,999
• Publication Number:
  US 20140087070A1
• Time in Patent Office: 2,062 Days
• Field of Search: None
• CPC Class Codes: B05D 1/36 Successively applying liquids or other fluent materials, e.g. without intermediate treatment
• CPC Class Codes: B05D 2508/00 Polyesters
• CPC Class Codes: B05D 3/02 by baking B05D3/04 takes precedence
• CPC Class Codes: B05D 7/51 One specific pretreatment, e.g. phosphatation, chromatation, in combination with one specific coating pretreatment of metallic substrates C23C; pretreatment before coating in general B05D3/00
• CPC Class Codes: B05D 7/52 Two layers
• CPC Class Codes: B32B 2250/02 2 layers
• CPC Class Codes: B32B 2375/00 Polyureas; Polyurethanes
• CPC Class Codes: B32B 27/00 Layered products comprising a layer of synthetic resin fibrous or filamentary layer made of a synthetic resin B32B5/02; particulate layer made of a synthetic resin B32B5/16; foamed layer made of a synthetic resin B32B5/18
• CPC Class Codes: B32B 27/40 comprising polyurethanes
• CPC Class Codes: B32B 7/06 permitting easy separation
• CPC Class Codes: C08G 18/0819 containing anionic or anionogenic groups
• CPC Class Codes: C08G 2170/80 Compositions for aqueous adhesives
• CPC Class Codes: C08L 75/04 Polyurethanes
• CPC Class Codes: C09D 5/20 for coatings strippable as coherent films, e.g. temporary coatings strippable as coherent films
• CPC Class Codes: C09J 175/04 Polyurethanes
• CPC Class Codes: C09J 2475/00 Presence of polyurethane
• CPC Class Codes: C09J 2475/006 in the substrate
• CPC Class Codes: C09J 7/22 Plastics; Metallised plastics
• CPC Class Codes: C09J 7/35 Heat-activated

Abstract

A coating system for a surface (such as a floor) including a liquid adhesive layer composition including a heat-activated adhesive that forms an adhesive layer upon drying after application to a surface, and a liquid maintenance layer composition comprising a dispersible polymer that forms a maintenance layer upon drying after application to the adhesive layer. The adhesive layer and the maintenance layer may form a peelable coating. An adhesive strength between the adhesive layer and the maintenance layer may be greater than an adhesive strength between the adhesive layer and the surface. The peelable coating may have a tensile strength that is greater than the adhesive strength between the adhesive layer and the surface. The peelable coating may be configured to be peeled from the surface without the adhesive layer and the maintenance layer separating from one another.

Claims

1. A coating system comprising:

a) a liquid adhesive layer composition comprising a heat-activated adhesive, wherein when the adhesive layer composition is applied on top of a surface, the adhesive layer composition dries to form an adhesive layer adhered to the surface, the heat-activated adhesive resulting in a tack-free surface upon drying; and

b) a liquid maintenance layer composition comprising a dispersible polymer, wherein when the maintenance layer composition is applied on top of the adhesive layer, the maintenance layer composition dries to form a maintenance layer adhered to the adhesive layer,

wherein the adhesive layer and maintenance layer form a peelable coating,

wherein an adhesive strength between the adhesive layer and the maintenance layer is greater than an adhesive strength between the adhesive layer and the surface, and

wherein the peelable coating has a tensile strength that is greater than the adhesive strength between the adhesive layer and the surface, such that the peelable coating is configured to be peeled from the surface without the adhesive layer and the maintenance layer separating from one another.

2. The coating system of claim 1, wherein the maintenance layer composition comprises a polyurethane.

3. The coating system of claim 1, wherein the adhesive layer composition or the maintenance layer composition further comprises a wax emulsion.

4. The coating system of claim 3, wherein the wax emulsion comprises oxidized polyethylene and glycerol monostearate.

5. The coating system of claim 1, wherein the adhesive layer composition comprises a polyurethane.

6. The coating system of claim 1, wherein the adhesive layer composition comprises a first polyurethane composition, a second polyurethane composition, or a combination thereof.

7. The coating system of claim 6, wherein the first polyurethane composition comprises a heat-activated polyurethane.

8. The coating system of claim 6, wherein the second polyurethane composition comprises a polyether, a polyester, a polycarbonate, or a combination thereof.

9. The coating system of claim 1, wherein the peelable coating does not whiten and/or blister after exposure to an alcohol for about 30 minutes, wherein the alcohol comprises at least one of methanol, ethanol, and isopropanol.

10. The coating system of claim 1, wherein the peelable coating comprises a peel strength of between about 50 gf/25 mm from the surface and about 500 gf/25 mm from the surface.

11. A method of coating a surface comprising:

a) applying a liquid adhesive layer composition comprising an emulsified heat-activated adhesive on top of a surface;

b) drying the adhesive layer composition to form an adhesive layer adhered to the surface, the heat-activated adhesive resulting in a tack-free surface upon drying;

c) applying a maintenance layer composition comprising an emulsified dispersible polymer on top of the adhesive layer; and

d) drying the maintenance layer composition to form a maintenance layer adhered to the adhesive layer,

wherein the adhesive layer and maintenance layer form a peelable coating,

wherein an adhesive strength between the adhesive layer and the maintenance layer is greater than an adhesive strength between the adhesive layer and the surface, and

wherein the peelable coating has a tensile strength that is greater than the adhesive strength between the adhesive layer and the surface, such that the peelable coating is configured to be peeled from the surface without the adhesive layer and the maintenance layer separating from one another.

12. The method of claim 11, wherein the maintenance layer composition comprises a polyurethane.

13. The method of claim 11, wherein the adhesive layer composition or the maintenance layer composition further comprises a wax emulsion.

14. The method of claim 13, wherein the wax emulsion comprises a non-ionic wax emulsion.

15. The method of claim 11, wherein the heat-activated adhesive comprises a polyurethane.

16. The method of claim 11, wherein the adhesive layer composition comprises a first polyurethane composition, a second polyurethane composition, or a combination thereof.

17. The method of claim 16, wherein the first polyurethane composition comprises heat-activated polyurethane.

18. The method of claim 16, wherein the second polyurethane composition comprises a polyether, a polyester, a polycarbonate, or a combination thereof.

19. The method of claim 11, wherein the peelable coating does not whiten and/or blister after exposure to an alcohol for about 30 minutes, wherein the alcohol comprises at least one of methanol, ethanol, and isopropanol.

20. The method of claim 11, wherein the peelable coating comprises a peel strength of between about 50 gf/25 mm from the surface and about 500 gf/25 mm from the surface.