Method for the flow coating of a polymeric material

Patent metadata

Field	Value
Publication number	US-8962089-B2
Application number	US-201113697818-A
Country	US
Kind code	B2
Filing date	Jun 6, 2011
Priority date	Jun 14, 2010
Publication date	Feb 24, 2015
Grant date	Feb 24, 2015

Abstract

Method for flow coating a polymeric material, wherein
a. at least one component ( 1 ) is inserted at an angle of 25° to 90° relative to the floor ( 5 ) into a holder ( 2 ), and b. the component ( 1 ) is coated from the upper edge ( 1 a ) with a varnish ( 3 ), containing 10 wt.-% to 30 wt.-% of 4-methyl-2-pentanone and/or derivatives thereof.

First claim

The invention claimed is:

1. A method for flow coating a component, the method comprising:
inserting the component into a holder at an angle of 25° to 90° relative to a floor; and
coating the component from an upper edge with a varnish comprising 10 wt.-% to 30 wt.-% of 4-methyl-2-pentanone and/or a derivative of 4-methyl-2-pentanone,
wherein the component comprises a polymeric material; and
wherein the method further comprises:
impinging on greater than 0 and up to 30% of a surface of the component adjacent to the upper edge with a stream consisting essentially of air during the coating of the component,
and/or
maintaining greater than 0% and up to 30% of a surface of the component adjacent to the upper edge at a temperature of 25° C. to 100° C. before and/or during the coating of the component.

2. The method of claim 1 , comprising impinging on greater than 0 and up to 30% of a surface of the component adjacent to the upper edge with a stream consisting essentially of air during the coating of the component.

3. The method of claim 2 , wherein the stream consisting essentially of air has a speed of 1 m/s to 5 m/s.

4. The method of claim 3 , wherein the stream consisting essentially of air has a speed of 2 m/s to 4 m/s.

5. The method of claim 4 , wherein the stream consisting essentially of air has a temperature of 40° C. to 80° C.

6. The method of claim 2 , wherein the stream consisting essentially of air has a temperature of 30° C. to 150° C.

7. The method of claim 6 , wherein the stream consisting essentially of air has a temperature of 40° C. to 80° C.

8. The method of claim 1 , comprising maintaining greater than 0 and up to 30% of a surface of the component adjacent to the upper edge at a temperature of 25° C. to 100° C. before and/or during the coating of the component.

9. The method of claim 1 , further comprising repeating the coating at least once after at least 30 s and before or at 120 s.

10. The method of claim 1 , wherein the component is inserted at an angle of 35° to 70° relative to the floor into the holder.

11. The method of claim 10 , wherein the component is inserted at an angle of 40° to 60° relative to the floor into the holder.

12. The method of claim 1 , wherein the varnish comprises a topcoat, a primer, or a mixture thereof.

13. The method of claim 12 , wherein the topcoat, the primer, or the top coat and the primer comprises an organically modified silicone resin, a polyacrylate, or a mixture thereof.

14. The method of claim 1 , wherein the varnish further comprises a solvent in addition to the 4-methyl-2-pentanone and/or derivative of 4-methyl-2-pentanone.

15. The method of claim 14 , wherein the solvent is water, an alcohol, a phenol, a ketone, or any mixture thereof.

16. The method of claim 15 , wherein the solvent is ethanol, methanol, 2-propanol, n-butanol, 1-methoxy-2-propanol, 4-hydroxy-4-methyl-2-pentanone, or any mixture thereof.

Assignees

• Schmidt Sebastian
• Tschurl Thomas
• Zerr Juri
• Saint Gobain

Inventors

• Schmidt Sebastian
• Tschurl Thomas
• Zerr Juri

Classifications

• B05D3/042

  Directing or stopping the fluid to be coated with air · CPC title

• B05D1/30 Primary

  performed by gravity only, i.e. flow coating · CPC title

• B05D3/0413

  Heating with air · CPC title

• B05D7/02

  to macromolecular substances, e.g. rubber (treatment or coating of shaped articles made of macromolecular substances C08J7/00) · CPC title

• B05D7/54

  No clear coat specified · CPC title