LOW DRAG COATING CONTAINING BORON NITRIDE POWDER

• US 20140373965A1
• Filed: 02/22/2013
• Published: 12/25/2014
• Est. Priority Date: 02/27/2012
• Status: Active Grant

• Current Assignee: Momentive Performance Materials Quartz Inc (Momentive Performance Materials Incorporated)
• Original Assignee: Momentive Performance Materials Incorporated
• Inventors: Leist, Jon
• Granted Patent: US 9,689,074 B2
• Time in Patent Office: Days
• US Class Current: 138/145
• CPC Class Codes: C08K 2003/385 Binary compounds of nitrogen with boron
• CPC Class Codes: C08K 3/38 Boron-containing compounds
• CPC Class Codes: C08L 101/00 Compositions of unspecified macromolecular compounds
• CPC Class Codes: C23C 26/00 Coating not provided for in groups C23C2/00 - C23C24/00
• CPC Class Codes: F16L 58/04 Coatings characterised by the materials used F16L58/16 takes precedence

Abstract

The present invention relates to coatings having improved resistance to corrosion and/or abrasion. In one embodiment, the compositions disclosed herein comprise at least one resin material in combination with at least one type of boron nitride powder. In another embodiment, the compositions disclosed herein comprise at least one resin in combination with at least one type of boron nitride powder, wherein the amount of boron nitride powder in the coating material is in the range of about 1 weight percent to about 25 weight percent.

Claims

1. A coating composition comprising:

at least one resin material; and

at least one boron nitride powder,

wherein the amount of boron nitride powder in the coating material is in the range of about 1 weight percent to about 25 weight percent.

2. The coating composition of claim 1, wherein the boron nitride powder is chosen from platelet-shaped boron nitride, agglomerates of boron nitride, spherical shaped boron nitride, elliptical shaped boron nitride, and combinations of two or more thereof.

3. The coating composition of claim 1, wherein the boron nitride powder comprises boron nitride having a crystal size of about 1 micron or less.

4. The coating composition of claim 1, wherein the boron nitride powder comprises boron nitride having a crystal size of about 0.7 micron or less.

5. The coating composition of claim 1, wherein the boron nitride powder comprises boron nitride having a crystal size of about 0.5 micron or less.

6. The coating composition of claim 1, wherein the boron nitride powder comprises boron nitride having a crystal size of about 0.1 micron to about 10 microns.

7. The coating composition of claim 1, wherein the boron nitride powder comprises boron nitride having a crystal size of about 0.2 micron to about 0.5 micron.

8. The coating composition of claim 1, wherein the boron nitride powder comprises boron nitride agglomerates having an agglomerate size of from about 0.5 micron to about 50 microns.

9. The coating composition of claim 1, wherein the boron nitride powder comprises boron nitride agglomerates having an agglomerate size of from about 0.7 micron to about 10 microns.

10. The coating composition of claim 1, wherein the resin material comprises a thermoset resin.

11. The coating composition of claim 10, wherein the resin material comprises a phenol-formaldehyde resin, a phenol resin, a melamine resin, an epoxy resin, or a combination of two or more thereof.

12. The coating composition of claim 1, wherein the resin material comprises a thermoplastic resin.

13. The coating composition of claim 12, wherein the resin material comprises an acrylonitrile butadiene styrene (ABS), an acrylic, a cyclic olefinic copolymer (COC), an ethylene-vinyl acetate (EVA), a fluoroplastic, acrylic/PVC alloys, a polyacrylate, a polyacrylonitrile (PANs or acrylonitriles), a polyamide, a polyamide-imide (PAT), a polyaryletherketone, a polybutadiene (PBD), a polybutylene (PB), a polybutylene terephthalate (PBT), a polycaprolactone (PCL), a polychlorotrifluoroethylene (PCTFEs), a polyethylene terephthalate (PET), polycyclohexylene dimethylene terephthalate (PCT), a polycarbonate (PC), a polyhydroxyalkanoate (PHA), polyketone (PK), a polyester, a polyethylene (PE), a polyetheretherketone (PEEK), a polyetherketoneketone (PEKK), a polyetherimide (PEI), a polyethersulfone (PES), a chlorinated polyethylene (CPE), a polyimide (PI), a polymethylpentene (PMP), a polyphenylene oxide (PPO), a polyphenylene sulfide (PPS), a polyphthalamide (PPA), a polypropylene (PP), a polystyrene (PS), a polysulfone (PSU), a polytrimethylene terephthalate (PTT), a polyurethane (PU), a polyvinyl acetate (PVA), a polyvinyl chloride (PVC), a polyvinylidene chloride (PVDC), a styrene-acrylonitrile (SAN), or a combination of two or more thereof.

14. The coating composition of claim 1, wherein the amount of boron nitride in the coating material is in the range of about 2.5 weight percent to about 20 weight percent.

15. The coating composition of claim 1, wherein the amount of boron nitride in the coating material is in the range of about 5 weight percent to about 15 weight percent.

16. The coating composition of claim 1, wherein the amount of boron nitride in the coating material is in the range of about 2.5 weight percent to about 20 weight percent

17. The coating composition of claim 1, wherein the coating composition is a liquid.

18. The coating composition of claim 1, wherein the coating composition is a powder coating.

19. The coating composition of claim 1, wherein a surface coated with the composition has a coefficient of friction (tan α

) of about 0.3 or less.

20. The coating composition of claim 1, wherein a surface coated with the composition has a coefficient of friction (tan α

) of about 0.25 or less.

21. The coating composition of claim 1, wherein a surface coated with the composition has a coefficient of friction (tan α

) of about 0.2 or less.

22. The coating composition of claim 1, wherein a surface coated with the composition has a coefficient of friction (tan α

) of from about 0.15 to about 0.3.

23. The coating composition of claim 1, wherein a surface coated with the composition has a coefficient of friction (tan α

) of from about 0.17 to about 0.27.

24. A pipe for conveying a fluid comprising an outer surface, an inner surface, and a channel disposed radially inward of the inner surface wherein at least a portion of the inner surface of the pipe is coated with the coating composition of claim 1.

25. The pipe of claim 24, wherein the pipe comprises a metal or a metal alloy.

26. The pipe of claim 24, wherein the pipe comprises a steel, titanium, nickel, zirconium, aluminum or alloys of two or more thereof.

27. The pipe of claim 24, wherein the pipe comprises stainless steel or a corrosion resistance steel.

28. The pipe of claim 24, wherein the inner surface coated with the coating composition has a coefficient of friction (tan α

) of about 0.3 or less.

29. The pipe of claim 24, wherein the inner surface coated with the coating composition has a coefficient of friction (tan α

) of about 0.25 or less.

30. The pipe of claim 24, wherein the inner surface coated with the coating composition has a coefficient of friction (tan α

) of about 0.2 or less.

31. The pipe of claim 24, wherein the inner surface coated with the coating composition has a coefficient of friction (tan α

) of from about 0.15 to about 0.3.

32. The pipe of claim 24, wherein the inner surface coated with the coating composition has a coefficient of friction (tan α

) of from about 0.17 to about 0.27.