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US 9,340,743 B2Granted
Metallurgical lubricant powder and metal powder composition
AssigneeIdemitsu Kosan Co., Ltd.
InventorsHiroki Sekiguchi, Akihiro Shishikura, Nobuhide Tanino
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Abstract
A powder metallurgy lubricant includes an aromatic carboxylic acid represented by a formula (1), (Z)n-Ar—COOH (1) where Ar represents an aryl group and Z represents a substituent directly bonded to the above aryl group and is one of R, OR, OCOR and COOR, R representing one of an alkyl group, alkenyl group and alkynyl group and n being an integer in a range from 1 to 4. Z may be mutually the same or different when n is 2 or larger.
Claims20
A powder metallurgy lubricant comprising
- an aromatic carboxylic acid represented by a formula (1), the aromatic carboxylic acid consisting of carbon, hydrogen and oxygen,
- (Z)n-Ar—COOH (1)
- where Ar represents an aryl group and Z represents a substituent directly bonded to the aryl group and is one of R, OR, OCOR and COOR, wherein R represents one of an alkyl group, alkenyl group and alkynyl group, and n is an integer of 1 to 4, and
- when n is 2 or more, plural Z may be the same or different, wherein
- the powder metallurgy lubricant is in the form of a powder.
2 more elements
The metal powder composition, that comprises:
- an aromatic carboxylic acid represented by formula (1), the aromatic carboxylic acid consisting of carbon, hydrogen and oxygen,
- (Z)n-Ar—COOH (1)
- where Ar represents an aryl group and Z represents a substituent directly bonded to the aryl group and is one of R, OR, OCOR and COOR, wherein R represents one of an alkyl group, alkeny1 group and alkynyl group, and n is an integer of 1 to 4, and
- when n is 2 or more, plural Z may be the same or different;
- a binder;
- and
- graphite.
4 more elements
The powder metallurgy lubricant comprising
- an aromatic carboxylic acid represented by formula (1), the aromatic carboxylic acid consisting of carbon, hydrogen and oxygen,
- (Z)n-Ar—COOH (1)
- wherein Ar represents an aryl group
- n is an integer of 1 to 4,
- wherein each Z is OCOOR, and
- wherein R represents one of an alkyl group, alkenyl group and alkynl group.
3 more elements
Dependencies are inferred from the claim text.