Metal working fluid
AssigneeItalmatch Chemicals SC LLC
InventorsAnthony Jarvis, Carl Williams, Richard Galsworthy, Matthew Ross
Life of this patent
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Abstract
A metal working fluid having increased resistance to bacterial growth. The metal working fluid includes a cross-linked polymeric ester emulsifier; and an amine represented by the formula (H2N)a-Q-(NH2)b, where a and b are each integers, and Q is at least one carbon atom. Q may also be represented by X—Y—Z, where a+b≥2; X is a cyclic ring system including 3 to 24 carbon atoms; and Y and Z are groups that include at least one carbon atom directly attached to the cyclic ring system. The metal working fluid may also include a biocide, and may also include an amide that is formed by reacting the amine with a carboxylic acid.
Claims21
A metal working fluid, comprising:
- a polymeric ester emulsifier that in and of itself is cross-linked;
- and
- an amine represented by the following formula (1):
- (H2N)a-Q-(NH2)b (1),
- where a and b are each integers, and Q is represented by Y—X—Z, where X is a cyclic ring system including 3 to 24 carbon atoms, Y and Z are groups that include at least one carbon atom directly attached to the cyclic ring system, and the amine groups are attached to the Y and Z groups, respectively.
A metal working fluid, comprising an amide that is formed through reaction of an amine with a carboxylic acid,
- wherein the amine is represented by the following formula (1):
- (H2N)a-Q-(NH2)b (1),
- where a and b are each integers, and Q is represented by Y—X—Z, where X is a cyclic ring system including 3 to 24 carbon atoms, Y and Z are groups that include at least one carbon atom directly attached to the cyclic ring system, and the amine groups are attached to the Y and Z groups, respectively;
- and
- wherein the carboxylic acid is a monocarboxylic acid, a dicarboxylic acid, or a tri-carboxylic acid.
Dependencies are inferred from the claim text.