IP Library › Granted Patent US 9,233,419
Granted Patent B2
US 9,233,419 · App. 13/968,770 · Granted Jan 12, 2016

Molybdenum metal powder

Inventor: Benno Gries (Wolfenbuettel, DE)
Assignee: H.C. Starck Inc.
B22F1/0003B22F9/22C22B5/14C22B34/34C22C27/04B22F2201/013B22F2301/20B22F2999/00
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Quick Facts
Patent No.
US 9,233,419
App. No.
13/968,770
Granted
Jan 12, 2016
Kind
B2
Abstract

The invention relates to a process for producing sinterable molybdenum metal powder in a moving bed, sinterable molybdenum powder and its use.

Claims (15)

1. Molybdenum metal powder which has a specific surface area, measured in accordance with ASTM 3663, of from 0.5 to 2 m 2 /g, a flowability of ≧140 sec per 50 g of powder, measured in accordance with ASTM B 213, and an oxygen content of from 0.07 to 0.5%.

2. Molybdenum metal powder according to claim 1 , wherein the powder has an FSSS/FSSS lab milled ratio of ≧1.4 and ≦5.

3. Molybdenum metal powder according to claim 1 , wherein the powder has an FSSS/FSSS lab milled ratio of ≧1.4 and ≦3.

4. Molybdenum metal powder according to claim 1 , wherein the powder has an FSSS/FSSS lab milled ratio of ≧1.4 and ≦2.5.

5. Molybdenum metal powder according to claim 1 , wherein the FSSS particle size of the powder, measured in accordance with ASTM B 330, is from 2 to 8 μm.

6. Molybdenum metal powder according to claim 1 , wherein the FSSS particle size of the powder, measured in accordance with ASTM B 330, is from 2 to 7 μm.

7. Molybdenum metal powder according to claim 1 , wherein the FSSS particle size of the powder, measured in accordance with ASTM B 330, is from 3 to 5 μm.

8. Molybdenum metal powder according to claim 1 , wherein the powder has a specific surface area, measured in accordance with ASTM 3663, of from 0.5 to 1.5 m 2 /g.

9. Molybdenum metal powder according to claim 1 , wherein the powder has a specific surface area, measured in accordance with ASTM 3663, of from 0.5 to 1.2 m 2 /g.

10. Molybdenum metal powder according to claim 1 , wherein the powder has a specific surface area, measured in accordance with ASTM 3663, of from 0.5 to 1.0 m 2 /g.

11. Molybdenum metal powder according to claim 1 , wherein the powder has a specific surface area, measured in accordance with ASTM 3663, of from 0.5 to 0.8 m 2 /g.

12. Molybdenum metal powder according to claim 1 , wherein the powder has an oxygen content of from 0.07 to 0.3%.

13. Molybdenum metal powder according to claim 1 , wherein the powder has an oxygen content of from 0.07 to 0.1%.

14. Molybdenum metal powder according to claim 1 , wherein the powder has an oxygen content of from 0.08 to 0.1%.

15. Molybdenum metal powder according to claim 1 , wherein the powder has a tapped density, measured in accordance with ASTM B 527, of from 1.8 to 2.6 g/cm 3 .

Assignments (8)
SECURITY INTEREST Recorded Nov 6, 2023
From: H.C. STARCK SOLUTIONS COLDWATER, LLC; H.C. STARCK SOLUTIONS EUCLID, LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 065472/0843 →
CHANGE OF NAME Recorded Nov 1, 2023
From: COLDWATER FACILITY HOLDING, LLC
To: H.C. STARCK SOLUTIONS COLDWATER, LLC
Reel/Frame 065415/0744 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 31, 2023
From: H.C. STARCK INC.
To: COLDWATER FACILITY HOLDING, LLC
Reel/Frame 065402/0530 →
RELEASE OF SECURITY INTEREST Recorded Nov 2, 2021
From: GLAS TRUST CORPORATION LIMITED
To: H.C. STARCK INC.
Reel/Frame 058768/0827 →
RELEASE OF SECURITY INTEREST Recorded Nov 2, 2021
From: GLAS TRUST CORPORATION LIMITED
To: H.C. STARCK INC.
Reel/Frame 058769/0242 →
SECURITY INTEREST Recorded Mar 31, 2016
From: H.C. STARCK INC.
To: GLAS TRUST CORPORATION LIMITED, AS SECURITY AGENT FOR THE BENEFIT OF THE SECOND LIEN SECURED PARTIES
Reel/Frame 038311/0472 →
SECURITY INTEREST Recorded Mar 31, 2016
From: H.C. STARCK INC.
To: GLAS TRUST CORPORATION LIMITED, AS SECURITY AGENT FOR THE BENEFIT OF THE SENIOR SECURED PARTIES
Reel/Frame 038311/0460 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2013
From: GRIES, BENNO
To: H.C. STARCK INC.
Reel/Frame 031078/0507 →
Priority Claims (1)
DE 10 2008 051 784 · Oct 17, 2008 · national
Continuity (3)
Division 13124814
Provisional Application 61109347 · Oct 29, 2008
Related Publication 20140037491A1 · Feb 6, 2014