Slip-resistant coating, method of coating a substrate and a coated substrate

Patent metadata

Field	Value
Publication number	US-12264256-B2
Application number	US-201917272322-A
Country	US
Kind code	B2
Filing date	Sep 27, 2019
Priority date	Sep 28, 2018
Publication date	Apr 1, 2025
Grant date	Apr 1, 2025

Abstract

A polymeric coating composition for application to a substrate includes a polymer matrix and an organic polymeric aggregate. The polymeric aggregate is utilized as a partial or complete replacement for aggregate containing free respirable crystalline silica traditionally included in anti-slip or anti-skid coating compositions. Methods of making the coating and coating a substrate with the coating composition to provide a slip- or skid-resistant coating on a surface of a substrate are also disclosed.

First claim

The invention claimed is:

1. A coating comprising:
a polymer matrix; and
an organic polymer aggregate,

wherein:
the density of said polymer aggregate is within +40 percent of the density of said polymer matrix, and
a volume ratio of said polymer matrix to said organic polymer aggregate in said coating is in a range of about 5:1 to about 10:1.

2. The coating of claim 1 , wherein said polymer matrix is selected from the group consisting of epoxy, polyaspartic, polymethacrylate, and polyurethane.

3. The coating of claim 2 , wherein said polymer matrix comprises said polyurethane.

4. The coating of claim 3 , wherein said organic polymer aggregate comprises polycarbonate, melamine, urea and mixtures thereof.

5. The coating of claim 4 , wherein said organic polymer aggregate comprises polycarbonate.

6. The coating of claim 1 , wherein the volume ratio of said polymer matrix to said organic polymer aggregate in said coating is in the range of about 5:1 to about 8:1.

7. A coated substrate comprising:
a substrate having opposite facing first and second major surfaces; and
at least one layer of said coating of claim 1 on one of said first or second major surfaces of said substrate.

8. The coated substrate of claim 7 , wherein said substrate comprises a floor substrate.

9. The coated substrate of claim 7 , wherein said substrate comprises a deck substrate.

10. A method for coating a substrate, the method comprising:
applying at least one layer of the coating of claim 1 to a surface of a substrate.

11. A method for coating a substrate comprising:
applying at least one layer of a polymer matrix to a surface of a substrate; and
applying a plurality of organic polymer aggregates onto said polymer matrix, wherein:
the density of said organic polymer aggregate is within +40 percent of the density of said polymer matrix, and
a volume ratio of said polymer matrix to said organic polymer aggregate in said coating is in a range of about 5:1 to about 10:1.

12. The coating of claim 1 , wherein the volume ratio of said polymer matrix to said organic polymer aggregate in said coating is in the range of about 5:1 to about 7:1.

13. The coating of claim 1 , wherein the volume ratio of said polymer matrix to said organic polymer aggregate in said coating is in the range of about 5:1 to about 6:1.

14. The coating of claim 1 , wherein the density of said polymer aggregate is 10 percent or more and 40 percent or less of the density of said polymer matrix.

15. The coating of claim 1 , wherein:
said polymer matrix comprises polyurethane, and
said organic polymer aggregate comprises polycarbonate.

16. A composition comprising:
a polymer matrix comprising polyurethane; and
an organic polymer aggregate comprising polycarbonate,

wherein:
the density of said polymer aggregate is 10 percent or more and 40 percent or less of the density of said polymer matrix, and
a volume ratio of said polymer matrix to said organic polymer aggregate in said composition is in a range of about 5:1 to about 10:1.

17. The composition of claim 16 , wherein the volume ratio of said polymer matrix to said organic polymer aggregate in said composition is in the range of about 5:1 to about 8:1.

18. The composition of claim 16 , wherein the volume ratio of said polymer matrix to said organic polymer aggregate in said composition is in the range of about 5:1 to about 7:1.

19. The composition of claim 16 , wherein the volume ratio of said polymer matrix to said organic polymer aggregate in said composition is in the range of about 5:1 to about 6:1.

Assignees

• Sika Tech Ag

Inventors

• Wang Chia
• Mullen Brian

Classifications

• C09D5/00 Primary

  Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced {(electrically insulating plastics, resins or waxes H01B3/30)}; Filling pastes · CPC title

• C09D7/65

  macromolecular (C09D7/41-C09D7/48 take precedence) · CPC title

• C08L69/00

  Compositions of polycarbonates; Compositions of derivatives of polycarbonates · CPC title

• C08G18/307

  Atmospheric humidity · CPC title

• C09K3/149

  Antislip compositions · CPC title