Aqueous lubricant and surface conditioner for formed metal surfaces
AssigneeHenkel Corporation
InventorsJames P. Bershas, Timm L. Kelly, Gary L. Rochfort, Henry A. Rossmaier
Life of this patent
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Abstract
A lubricant and surface conditioner for formed metal surfaces, particularly aluminum and tin beverage containers, reduces the coefficient of static friction of said metal surfaces and enables drying said metal surfaces at a lower temperature. The conditioner includes a water-soluble organic material selected from amine oxides and quaternary ammonium salts, fluozirconate, fluohafnate, or fluotitanate ion, and preferably also phosphate and nitrate ions. Good resistance to damaging the friction reducing effect by overheating and to staining of the domes of treated containers during pasteurization can be achieved.
Claims15
A concentrate additive suitable for dilution with water to form a lubricant and surface conditioner forming aqueous composition for treating metal surfaces to reduce the coefficient of friction thereof, said additive consisting essentially of water and:
- (A) a component selected from the group consisting of quaternary ammonium salt and amine oxide surfactants conforming to general formula I:
- ##STR5## where R.sup.1 is a monovalent aliphatic moiety, which may be saturated or unsaturated and contains from 8 to 22 carbon atoms;
- each of R.sup.2 and R.sup.3 is a monovalent moiety independently selected from the group consisting of (i) alkyl and hydroxyalkyl moieties having from 1 to 8 carbon atoms and (ii) aryl and arylalkyl moieties having from 6 to 10 carbon atoms;
- R.sup.4 is a monovalent moiety selected from the same group as for R:
- and R.sup.3 plus the --O.sup.- moiety;
- X.sup.- is a monovalent anion or monovalent fraction of an anion with a valence higher than 1;
- and a=0 if R.sup.4 is --O.sup.- and =1 if R.sup.4 is not --O.sup.- ;
- and
- (B) a component of complex fluoride anions;
- and, optionally but preferably,
- (C) a component of phosphate ions, optionally also including sulfate or nitrate ions or both;
- and, optionally,
- (D) aluminate anions, including fluoroaluminate anions;
- and, optionally
- (E) aluminum cations, including complex fluoroaluminum cations, and, optionally, one or both of:
- (F) a water soluble and/or water dispersible polymer including amino-substituted vinyl phenolic moieties;
- and
- (G) a foam reducing component.
A working lubricant and surface conditioner forming composition having a pH in the range from about 2.3 to about 3.3, a fluoride activity corresponding to a reading of about -30 to about -120 mv on a fluoride sensitive electrode, and consisting essentially of water and:
- (A) from about 0.14 to about 2.25 mM of a component selected from the group consisting of quaternary ammonium salt and amine oxide surfactants conforming to general formula I:
- ##STR6## where R.sup.1 is a monovalent aliphatic moiety which may be saturated or unsaturated and contains from 8 to 22 carbon atoms;
- each of R.sup.2 and R.sup.3 is a monovalent moiety independently selected from the group consisting of (i) alkyl and hydroxyalkyl moieties having from 1 to 8 carbon atoms and (ii) aryl and arylalkyl moieties having from 6 to 10 carbon atoms;
- R.sup.4 is a monovalent moiety selected from the same group as for R.sup.2 and R.sup.3 plus the --O.sup.- moiety;
- X.sup.- is a monovalent anion or monovalent fraction of an anion with a valence higher than 1;
- and a=0 if R.sup.4 is --O.sup.- and =1 if R.sup.4 is not --O.sup.- ;
- and
- (B) from about 0.4 to about 2.0 mM of complex fluoride anions;
- and
- (C) from about 0.28 to about 3.4 mM of phosphate ions, optionally also including sulfate or nitrate ions or both;
- and, optionally,
- (D) aluminate anions, including fluoroaluminate anions;
- and, optionally
- (E) aluminum cations, including complex fluoroaluminum cations, and, optionally, one or both of:
- (F) a water soluble and/or water dispersible polymer including amino-substituted vinyl phenolic moieties, as described in detail in one or more of U.S. Pat. Nos. 5,116,912, 5,068,299, 5,063,089, 4,944,812, 4,517,028, 4,457,790, 4,433,015, and 4,376,000;
- and
- (G) a foam reducing component.
Dependencies are inferred from the claim text.