CURING METHODS AND PRODUCTS PRODUCED THEREFROM

• US 20150336130A1
• Filed: 01/17/2014
• Published: 11/26/2015
• Est. Priority Date: 01/17/2013
• Status: Abandoned Application

• Current Assignee: AFI Licensing LLC (Armstrong World Industries Incorporated)
• Original Assignee: Armstrong World Industries Incorporated
• Inventors: LEININGER, Larry W., TIAN, Dong
• Application Number:
  US14/760,060
• Publication Number:
  US 20150336130A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B05D 2252/02 of indefinite length
• CPC Class Codes: B05D 3/02 by baking B05D3/04 takes precedence
• CPC Class Codes: B05D 3/0486 Operating the coating or treatment in a controlled atmosphere
• CPC Class Codes: B05D 3/062 Pretreatment
• CPC Class Codes: B05D 3/067 Curing or cross-linking the coating

Abstract

Described herein are methods for producing a wear layer on a substrate comprising: applying a radiation curable composition comprising an acrylate component to a surface of a substrate; and irradiating the substrate to which said composition has been applied with a source of radiation having a wavelength from 100-280 rim, to form a wear layer. Uses of the products produced by the methods are also described herein.

Claims

1. A method for producing a wear layer on a substrate comprising:

applying a radiation curable composition comprising an acrylate component to a surface of a substrate; and

irradiating the substrate to which said composition has been applied with a source of radiation having a wavelength from 100-280 nm, to form a wear layer; and

wherein the substrate to which the coating has been applied is irradiated for a time and intensity sufficient to provide a total energy density of from about 0.1 J/cm² to about 0.4 J/cm².

2. The method of claim 1, further comprising the step of pre-curing the radiation curable composition prior to the step of applying said composition to the substrate.

3. The method of claim 2, wherein the pre-curing comprises irradiating the radiation curable composition with a source of radiation having a wavelength of from 100-280 nm.

4. The method of claim 1, further comprising the step of heating said substrate to a temperature of from about 65°

F. to about 150°

F. prior to irradiating said composition.

5. The method of claim 1, wherein the composition further comprises from about 0.1 to about 25 wt. % of an amine synergist.

6. The method of claim 1, wherein the composition further comprises an abrasive.

7. The method of claim 1, wherein the nitrogen flow rate is about 40 Nm³/hour.

8. The method of claim 1, wherein the coated substrate is irradiated in an environment having an oxygen concentration of from about 50 to about 1500 ppm per square meter of material surface.

10. The method of claim 1, wherein the coated substrate is irradiated at a line speed of from about 10 ft./min to about 60 ft./min.

13. The method of claim 1, wherein the composition comprises from about 65 wt. % to about 95 wt. % of an acrylate component.

14. The method of claim 1, wherein the acrylate component comprises an acrylate selected from polyester acrylate;

urethane acrylate;

epoxy acrylate;

silicone acrylate; and

a combination of two or more thereof.

15. The method of claim 1, wherein the source of radiation used to irradiate the substrate to which said composition has been applied, comprises an amalgam germicidal lamp.

17. The method of claim 1, wherein the substrate to which the coating has been applied is irradiated a plurality of times.

18. The method of claim 17, wherein the substrate to which the coating has been applied is irradiated with at least one of UVA, UVB, UVC or VUV radiation.

19. The method of claim 2, wherein the pre-curing is carried out at a temperature of from about 110°

F. to about 125°

F.

21. The method of claim 1, wherein the radiation curable composition is applied to the substrate in an amount sufficient to provide a coating having a density of from about 1 g/m² to about 3 g/m².

22. The method of claim 1, wherein the composition further comprises at least one of a photoinitiator, a flattening agent, and an ink.

24. The method of claim 15, wherein the substrate to which said composition has been applied is irradiated with a source of radiation having a peak of 254 nm and a lower peak at 185 nm.

9. (canceled)

11. (canceled)

12. The method of claim 12, wherein the coated substrate is irradiated at a line speed of 38 ft./min.

16. (canceled)

20. (canceled)

23. (canceled)

25. (canceled)