Novel functional fluid
AssigneeCincinnati Milacron Inc.
InventorMark A. Williams
Life of this patent
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Abstract
Corrosion inhibiting aqueous functional fluids having high stability are provided which contain (a) water, (b) a corrosion inhibiting, surface active, water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble carboxylic acid group terminated monoamide, (c) a second surface active agent and optionally, (d) water soluble or dispersible lubricant. These functional fluids are useful as a metal working fluid or hydraulic fluid.
Claims6
A corrosion inhibiting, aqueous functional fluid composition having a pH in the range of from 8 to 12 comprising (a) water, (b) a surface active, corrosion inhibiting, water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble carboxylic acid group terminated amide having one amide linkage ##STR46## per molecule and (c) a second surface active agent, wherein (b) has the following formula ##STR47## where R is a divalent C.sub.4 to C.sub.8 cycloaliphatic radical,
- R.sup.1 is a monovalent organic radical selected from the group of:
- (a) a monovalent C.sub.7 to C.sub.10 aliphatic radical having at least one methyl or ethyl branch when R.sup.2 is hydrogen, or
- (b) a monovalent C.sub.1 to C.sub.9 straight or branched chain aliphatic group when R.sup.2 is a monovalent C.sub.1 to C.sub.9 straight or branched chain aliphatic group with the proviso that R.sup.1 +R.sup.2 shall have a combined total of from 7 to 10 carbon atoms and at least one of R.sup.1 or R.sup.2 has at least 4 carbon atoms,
- R.sup.2 is hydrogen or a monovalent C.sub.1 to C.sub.9 branched or straight chain aliphatic group,
- Z is an alkali metal cation or a nitrogen containing cation having at least one hydrogen attached to the nitrogen, a positive charge equal to x and selected from the group consisting of ammonium cation and cations of a water soluble alkanolamine having 2 to 4 carbon atoms in the alkanol group, C.sub.2 to C.sub.6 alkyl amine, alkyl alkanolamine having 1 to 6 carbon atoms in the alkyl group and 2 to 4 carbon atoms in the alkanol group, heteroaliphatic monoamine in which the heteroatom is oxygen, heteroaliphatic polyamine having oxygen or nitrogen heteroatoms, alkylene diamine having 2 to 6 carbon atoms in the alkylene group, N-alkyl or N-hydroxyalkyl substituted alkylene diamine having 2 to 6 carbon atoms in the alkylene group, morpholine, N-alkyl substituted morpholine or N-aminoalkyl substituted morpholine,
- x is 1 to 3,
- y is 1 and
- m is 1 to 3
A corrosion inhibiting, aqueous functional fluid composition having a pH in the range of from 8 to 12 comprising (a) water, (b) a surface active, corrosion inhibiting, water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble carboxylic acid group terminated amide having one amide linkage ##STR48## per molecule, (c) a second surface active agent and (d) a water soluble or dispersible lubricant, wherein (b) has the following formula ##STR49## where R is a divalent C.sub.4 to C.sub.8 cycloaliphatic radical,
- R.sup.1 is a monovalent organic radical selected from the group of:
- (a) a monovalent C.sub.7 to C.sub.10 aliphatic radical having at least one methyl or ethyl branch when R.sup.2 is hydrogen, or
- (b) a monovalent C.sub.1 to C.sub.9 straight or branched chain aliphatic group when R.sup.2 is a monovalent C.sub.1 to C.sub.9 straight or branched chain aliphatic group with the proviso that R.sup.1 +R.sup.2 shall have a combined total of from 7 to 10 carbon atoms and at least one of R.sup.1 or R.sup.2 has at least 4 carbon atoms,
- R.sup.2 is a hydrogen or a monovalent C.sub.1 to C.sub.9 branched or straight chain aliphatic group,
- Z is an alkali metal cation or a nitrogen containing cation having at least one hydrogen attached to the nitrogen, a positive charge equal to x and selected from the group consisting of ammonium cation and cations of a water soluble alkanolamine having 2 to 4 carbon atoms in the alkanol group, C.sub.2 to C.sub.6 alkyl amine, alkyl alkanolamine having 1 to 6 carbon atoms in the alkyl group and 2 to 4 carbon atoms in the alkanol group, heteroaliphatic monoamine in which the heteroatom is oxygen, heteroaliphatic polyamine having oxygen or nitrogen heteroatoms, alkylene diamine having 2 to 6 carbon atoms in the alkylene group, N-alkyl or N-hydroxyalkyl substituted alkylene diamine having 2 to 6 carbon atoms in the alkylene group, morpholine, N-alkyl substituted morpholine or N-aminoalkyl substituted morpholine,
- x is 1 to 3
- y is 1 and
- m is 1 to 3
A corrosion inhibiting, aqueous functional fluid composition having a pH in the range of from 8 to 12 comprising (a) water, (b) a surface active, corrosion inhibiting, water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble carboxylic acid group terminated amide having one amide linkage ##STR50## per molecule and (c) a second surface active agent, wherein (b) has the following formula ##STR51## where R is a divalent aromatic radical,
- R.sup.1 is a monovalent organic radical selected from the group of:
- (a) a monovalent C.sub.7 to C.sub.10 aliphatic radical having at least one methyl or ethyl branch when R.sup.2 is hydrogen, or
- (b) a monovalent C.sub.1 to C.sub.9 straight or branched chain aliphatic group when R.sup.2 is a monovalent C.sub.1 to C.sub.9 straight or branched chain aliphatic group with the proviso that R.sup.1 +R.sup.2 shall have a combined total of from 7 to 10 carbon atoms and at least one of R.sup.1 or R.sup.2 has at least 4 carbon atoms,
- R.sup.2 is hydrogen or a monovalent C.sub.1 to C.sub.9 branched or straight chain aliphatic group,
- Z is an alkali metal cation or a nitrogen containing cation having at least one hydrogen attached to the nitrogen, a positive charge equal to x and selected from the group consisting of ammonium cation and cations of a water soluble alkanolamine having 2 to 4 carbon atoms in the alkanol group, C.sub.2 to C.sub.6 alkyl amine, alkyl alkanolamine having 1 to 6 carbon atoms in the alkyl group and 2 to 4 carbon atoms in the alkanol group, heteroaliphatic monoamine in which the heteroatom is oxygen, heteroaliphatic polyamine having oxygen or nitrogen heteroatoms, alkylene diamine having 2 to 6 carbon atoms in the alkylene group, N-alkyl or N-hydroxyalkyl substituted alkylene diamine having 2 to 6 carbon atoms in the alkylene group, morpholine, N-alkyl substituted morpholine or N-aminoalkyl substituted morpholine,
- x is 1 to 3,
- y is 1 and
- m is 1 to 3
A corrosion inhibiting, aqueous functional fluid composition having a pH in the range of from 8 to 12 comprising (a) water, (b) a surface active, corrosion inhibiting, water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble carboxylic acid group terminated amide having one amide linkage ##STR52## per molecule, (c) a second surface active agent and (d) a water soluble or dispersible lubricant, wherein (b) has the following formula ##STR53## where R is a divalent aromatic radical,
- R.sup.1 is a monovalent organic radical selected from the group of:
- (a) a monovalent C.sub.7 to C.sub.10 aliphatic radical having at least one methyl or ethyl branch when R.sup.2 is hydrogen, or
- (b) a monovalent C.sub.1 to C.sub.9 straight or branched chain aliphatic group when R.sup.2 is a monovalent C.sub.1 to C.sub.9 straight or branched chain aliphatic group with the proviso that R.sup.1 +R.sup.2 shall have a combined total of from 7 to 10 carbon atoms and at least one of R.sup.1 or R.sup.2 has at least 4 carbon atoms,
- R.sup.2 is hydrogen or a monovalent C.sub.1 to C.sub.9 branched or straight chain aliphatic group,
- Z is an alkali metal cation or a nitrogen containing cation having at least one hydrogen attached to the nitrogen, a positive charge equal to x and selected from the group consisting of ammonium cation and cations of a water soluble alkanolamine having 2 to 4 carbon atoms in the alkanol group, C.sub.2 to C.sub.6 alkyl amine, alkyl alkanolamine having 1 to 6 carbon atoms in the alkyl group and 2 to 4 carbon atoms in the alkanol group, heteroaliphatic monoamine in which the heteroatom is oxygen, heteroaliphatic polyamine having oxygen or nitrogen heteroatoms, alkylene diamine having 2 to 6 carbon atoms in the alkylene group, N-alkyl or N-hydroxyalkyl substituted alkylene diamine having 2 to 6 carbon atoms in the alkylene group, morpholine, N-alkyl substituted morpholine or N-aminoalkyl substituted morpholine,
- x is 1 to 3
- y is 1 and
- m is 1 to 3
A corrosion inhibiting, aqueous functional fluid composition having a pH in the range of from 8 to 12 comprising (a) water, (b) a surface active, corrosion inhibiting, water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble carboxylic acid group terminated amide having one amide linkage ##STR54## per molecule and (c) a second surface active agent, wherein (b) has the following formula ##STR55## where R is a divalent radical selected from the group consisting of a monoethylenically unsaturated C.sub.2 to C.sub.3 aliphatic radical having two free valences in a cis stereo configuration,
- R.sup.1 is a monovalent organic radical selected from the group of:
- (a) a monovalent C.sub.7 to C.sub.10 aliphatic group having at least one methyl or ethyl branch or a monovalent heteroaliphatic group having at least one methyl or ethyl branch and the formula R.sup.3 --OR.sup.4.sub.n (II) wherein R.sup.3 is a straight chain or a methyl or ethyl branched C.sub.6 to C.sub.12 alkyl radical, R.sup.4 is a C.sub.2 to C.sub.3 alkylene radical and n is 1 to 2 when R.sup.2 is hydrogen, or
- (b) a monovalent C.sub.1 to C.sub.11 straight or branched chain aliphatic radical when R.sup.2 is a C.sub.1 to C.sub.11 straight or branched chain monovalent aliphatic radical with the proviso that R.sup.1 +R.sup.2 shall have a combined total of from 8 to 12 carbon atoms and at least one of R.sup.1 or R.sup.2 shall have at least 5 carbon atoms,
- R.sup.2 is hydrogen or a monovalent C.sub.1 to C.sub.11 branched or straight chain aliphatic group,
- Z is an alkali metal cation or a nitrogen containing cation having at least one hydrogen attached to the nitrogen, a positive charge equal to x and selected from the group consisting of ammonium cation and cations of a water soluble alkyl alkanolamine having 1 to 6 carbon atoms in the alkyl group and 2 to 4 carbon atoms in the alkanol group, heteroaliphatic monoamine in which the heteroatom is oxygen, heteroaliphatic polyamine having oxygen or nitrogen heteroatoms, alkylene diamine having 2 to 6 carbon atoms in the alkylene group, N-alkyl or N-hydroxyalkyl substituted alkylene diamine having 2 to 6 carbon atoms in the alkylene group, morpholine, N-alkyl substituted morpholine or N-aminoalkyl substituted morpholine,
- x is 1 to 3,
- y is 1 and
- m is 1 to 3.
A corrosion inhibiting, aqueous functional fluid composition having a pH in the range of from 8 to 12 comprising (a) water, (b) a surface active, corrosion inhibiting, water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble carboxylic acid group terminated amide having one amide linkage ##STR56## per molecule, (c) a second surface active agent and (d) a water soluble or dispersible lubricant, wherein (b) has the following formula ##STR57## where R is a divalent radical selected from the group consisting of a monoethylenically unsaturated C.sub.2 to C.sub.3 aliphatic radical having two free valences in a cis stereo configuration,
- R.sup.1 is a monovalent organic radical selected from the group of:
- (a) a monovalent C.sub.7 to C.sub.10 aliphatic group having at least one methyl or ethyl branch or a monovalent heteroaliphatic group having at least one methyl or ethyl branch and the formula R.sup.3 --OR.sup.4.sub.n (II) wherein R.sup.3 is a straight chain or a methyl or ethyl branched C.sub.6 to C.sub.12 alkyl radical, R.sup.4 is a C.sub.2 to C.sub.3 alkylene radical and n is 1 to 2 when R.sup.2 is hydrogen, or
- (b) a monovalent C.sub.1 to C.sub.11 straight or branched chain aliphatic radical when R.sup.2 is a C.sub.1 to C.sub.11 straight or branched chain monovalent aliphatic radical with the proviso that R.sup.1 +R.sup.2 shall have a combined total of from 8 to 12 carbon atoms and at least one of R.sup.1 or R.sup.2 shall have at least 5 carbon atoms,
- R.sup.2 is hydrogen or a monovalent C.sub.1 to C.sub.11 branched or straight chain aliphatic group,
- Z is an alkali metal cation or a nitrogen containing cation having at least one hydrogen attached to the nitrogen, a positive charge equal to x and selected from the group consisting of ammonium cation and cations of a water soluble alkyl alkanolamine having 1 to 6 carbon atoms in the alkyl group and 2 to 4 carbon atoms in the alkanol group, heteroaliphatic monoamine in which the heteroatom is oxygen, heteroaliphatic polyamine having oxygen or nitrogen heteroatoms, alkylene diamine having 2 to 6 carbon atoms in the alkylene group, N-alkyl or N-hydroxyalkyl substituted alkylene diamine having 2 to 6 carbon atoms in the alkylene group, morpholine, N-alkyl substituted morpholine or N-aminoalkyl substituted morpholine,
- x is 1 to 3
- y is 1 and
- m is 1 to 3.
Dependencies are inferred from the claim text.