White antimicrobial copper alloy

Patent metadata

Field	Value
Publication number	US-9670566-B2
Application number	US-201414175802-A
Country	US
Kind code	B2
Filing date	Feb 7, 2014
Priority date	Oct 26, 2012
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

Copper based alloys exhibiting a white/silver hue. The alloys contain copper, nickel, zinc, manganese, tin, sulfur, and antimony.

First claim

We claim:

1. A composition comprising:
61 wt %-67 wt % copper,
8 wt %-12 wt % nickel,
8 wt %-14 wt % zinc,
10 wt %-16 wt % manganese,
greater than 0 wt % sulfur and less than or equal to 0.25 wt % sulfur, and
0.1 wt %-1.0 wt % antimony
0.2 wt %-1.0 wt % tin
greater than 0 wt % iron and less than or equal to than 0.6 wt % iron
greater than 0 wt % aluminum and less than or equal to 0.6 wt % aluminum
greater than 0 wt % phosphorous and less than or equal to 0.05 wt % phosphorous
greater than 0 wt % lead and less than or equal to 0.09 wt % lead
greater than 0 wt % silicon and less than or equal to 0.05 wt % silicon, and
greater than 0 wt % carbon and less than or equal to 0.10 wt % carbon.

2. The composition of claim 1 , further comprising 0.6 wt % iron.

3. The composition of claim 1 , further comprising 0.6 wt % aluminum.

4. The composition of claim 1 , further comprising 0.05 wt % phosphorous.

5. The composition of claim 1 , further comprising 0.09 wt % lead.

6. The composition of claim 1 , further comprising 0.05 wt % silicon.

7. The composition of claim 1 , further comprising 0.10 wt % carbon.

8. A composition comprising:
66 wt %-70 wt % copper,
3 wt %-6 wt % nickel,
8 wt %-14 wt % zinc,
10 wt %-16 wt % manganese,
greater than 0 wt % sulfur and less than or equal to 0.25 wt % sulfur, and
0.1 wt %-1.0 wt % antimony
0.2 wt %-1.0 wt % tin;
greater than 0 wt % iron and less than or equal to 0.6 wt % iron
greater than 0 wt % aluminum and less than or equal to 0.6 wt % aluminum
greater than 0 wt % phosphorous and less than or equal to 0.05 wt % phosphorous
greater than 0 wt % lead and less than or equal to 0.09 wt % lead
greater than 0 wt % silicon and less than or equal to 0.05 wt % silicon, and
greater than 0 wt % carbon and less than or equal to 0.10 wt % carbon.

9. The composition of claim 8 , further comprising 0.6 wt % iron.

10. The composition of claim 8 , further comprising 0.6 wt % aluminum.

11. The composition of claim 8 , further comprising 0.05 wt % phosphorous.

12. The composition of claim 8 , further comprising 0.09 wt % lead.

13. The composition of claim 8 , further comprising 0.05 wt % silicon.

14. The composition of claim 8 , further comprising 0.10 wt % carbon.

Assignees

• Sloan Valve Co

Inventors

• Murray Michael
• Sahoo Mahi

Classifications

• C22F1/08

  of copper or alloys based thereon · CPC title

• C22C9/05

  with manganese as the next major constituent · CPC title

• C22C9/06 Primary

  with nickel or cobalt as the next major constituent · CPC title

• C22C9/04

  with zinc as the next major constituent · CPC title