Friction and wear modifiers using solvent partitioning of hydrophilic surface-interactive chemicals contained in boundary layer-targeted emulsions
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10M-173/00
C10M-169/02
출원번호
US-0027472
(2011-02-15)
등록번호
US-8420582
(2013-04-16)
발명자
/ 주소
Richmond, Robert Chafee
Schramm, Jr., Harry F.
Defalco, Francis G.
출원인 / 주소
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
대리인 / 주소
Walsh, Gerald M.
인용정보
피인용 횟수 :
1인용 특허 :
4
초록▼
A wear and/or friction reducing additive for a lubricating fluid in which the additive is a combination of a moderately hydrophilic single-phase compound and an anti-wear and/or anti-friction aqueous salt solution. The aqueous salt solution produces a coating on boundary layer surfaces. The lubricat
A wear and/or friction reducing additive for a lubricating fluid in which the additive is a combination of a moderately hydrophilic single-phase compound and an anti-wear and/or anti-friction aqueous salt solution. The aqueous salt solution produces a coating on boundary layer surfaces. The lubricating fluid can be an emulsion-free hydrophobic oil, hydraulic fluid, antifreeze, or water. Preferably, the moderately hydrophilic single-phase compound is sulfonated castor oil and the aqueous salt solution additionally contains boric acid and zinc oxide. The emulsions produced by the aqueous salt solutions, the moderately hydrophilic single-phase compounds, or the combination thereof provide targeted boundary layer organizers that significantly enhance the anti-wear and/or anti-friction properties of the base lubricant by decreasing wear and/or friction of sliding and/or rolling surfaces at boundary layers.
대표청구항▼
1. A wear and/or friction reducing additive for a lubricating fluid, comprising: a) one or more single-phase compounds; andb) an aqueous salt solution, wherein said salts in said aqueous salt solution are inorganic salts, wherein said one or more single-phase compounds and said aqueous salt solution
1. A wear and/or friction reducing additive for a lubricating fluid, comprising: a) one or more single-phase compounds; andb) an aqueous salt solution, wherein said salts in said aqueous salt solution are inorganic salts, wherein said one or more single-phase compounds and said aqueous salt solution are combined in a ratio of 1 part to 2 parts by volume or 2 parts to 1 part by volume or in a ratio therebetween, wherein said additive forms an emulsion in said lubricating fluid, and wherein said single-phase compound is selected from the group consisting of castor oil, sulfonated castor oil, ethoxylated castor oil, lanolin, triethylamine, 1-octyl-3-methylimidazoliumbis(trifluoromethylsulfonyl)imide, 1-dodecyl-3-methyl-imidazoliumbis(trifluoromethylsulfonyl)imide, and 1-butyl-3-methylimidazolium-bis(trifluoromethylsulfonyl)imide, or combinations thereof. 2. The wear and/or friction reducing additive of claim 1 wherein said aqueous salt solution consists of salts formulated such that, when said aqueous salt solution is coated on a surface, said aqueous salt solution forms a conversion coating on said surface without the application of external electromotive force. 3. The wear and/or friction reducing additive of claim 1 wherein said aqueous salt solution contains two or more inorganic non-hydroxy metal compounds wherein said non-hydroxy metal is selected from Groups I-VII of the Periodic Table and wherein said aqueous salt solution comprises salts obtained from separate acid-base reactions of sulfuric acid or phosphoric acid with ammonium hydroxide and alkali metal hydroxide. 4. The wear and/or friction reducing additive of claim 1 wherein said single-phase compound comprises one or more imidazolium-based ionic liquids. 5. The wear and/or friction reducing additive of claim 1 wherein the single-phase compound is sulfonated castor oil. 6. The wear and/or friction reducing additive of claim 3 wherein said non-hydroxy metal compounds in said aqueous salt solution are boric acid and zinc oxide. 7. A wear and/or friction reducing additive for a lubricating fluid, comprising: a) one or more single-phase compounds selected from the group consisting of castor oil, sulfonated castor oil, ethoxylated castor oil, lanolin, triethylamine, 1-octyl-3-methylimidazoliumbis(trifluoromethylsulfonyl)-imide, 1-dodecyl-3-methyl-imidazoliumbis(trifluoromethylsulfonyl)imide, and 1-butyl-3-methylimidazolium-bis(trifluoromethylsulfonyl)imide; andb) an anti-wear and/or anti-friction aqueous salt solution which consists of salts formulated such that, when said aqueous salt solution is coated on a surface, said aqueous salt solution forms a conversion coating on said surface without the application of external electromotive force, wherein said anti-wear and/or anti-friction aqueous salt solution contains two or more inorganic non-hydroxy metal compounds wherein said non-hydroxy metal is selected from Groups I-VII of the Periodic Table, and wherein said anti-wear and/or anti-friction aqueous salt solution comprises salts obtained from separate acid-base reactions of sulfuric acid or phosphoric acid with ammonium hydroxide and alkali metal hydroxide. 8. The wear and/or friction reducing additive of claim 7 wherein said single-phase compound comprises one or more imidazolium-based ionic liquids. 9. The wear and/or friction reducing additive of claim 7 wherein the lubricating fluid is an emulsion-free hydrophobic oil, hydraulic fluid, antifreeze, or water. 10. The wear and/or friction reducing additive of claim 7 wherein said single-phase compound is sulfonated castor oil. 11. The wear and/or friction reducing additive of claim 9 wherein said single-phase compound and said anti-wear and/or anti-friction aqueous salt solution alone or in combination produces an emulsion in said lubricating fluid. 12. The wear and/or friction reducing additive of claim 7 wherein said non-hydroxy metal compounds in said anti-wear and/or anti-friction aqueous salt solution are boric acid and zinc oxide. 13. A wear and/or friction reducing additive for a lubricating fluid, comprising: a) a single-phase compound selected from the group consisting of castor oil, sulfonated castor oil, ethoxylated castor oil, lanolin, triethylamine, 1-octyl-3-methylimidazoliumbis(trifluoromethylsulfonyl)-imide, 1-dodecyl-3-methyl-imidazoliumbis(trifluoromethylsulfonyl)imide, and 1-butyl-3-methylimidazolium-bis(trifluoromethylsulfonyl)imide, or combinations thereof;b) an anti-wear and/or anti-friction aqueous salt solution, which consists of salts formulated such that, when said aqueous salt solution is coated on a surface, said aqueous salt solution forms a conversion coating on said surface without the application of external electromotive force, and which contains two or more inorganic non-hydroxy metal compounds wherein said non-hydroxy metal is selected from Groups I-VII of the Periodic Table, and wherein said anti-wear and/or anti-friction aqueous salt solution comprises obtained from separate acid-base reactions of sulfuric acid or phosphoric acid with ammonium hydroxide and alkali metal hydroxide; andc) said lubricating fluid is an emulsion-free hydrophobic oil, hydraulic fluid, antifreeze, or water, wherein said single-phase compound and said anti-wear and/or anti-friction aqueous salt solution alone or in combination produces an emulsion in said lubricating fluid. 14. The wear and/or friction reducing additive of claim 13 wherein said single-phase compound comprises one or more imidazolium-based ionic liquids. 15. The wear and/or friction reducing additive of claim 13 wherein said single-phase compound is sulfonated castor oil. 16. The wear and/or friction reducing additive of claim 15 wherein said non-hydroxy metal compounds in said anti-wear and/or anti-friction aqueous salt solution are boric acid and zinc oxide. 17. A wear and/or friction reducing additive for a non-emulsified lubricating fluid, comprising an anti-wear and/or anti-friction aqueous salt solution having two or more inorganic non-hydroxy metal compounds and a single-phase compound wherein said single-phase compound is an imidazolium-based ionic liquid, and wherein said additive is not an emulsion but forms an emulsion in said non-emulsified lubricating fluid when added to said non-emulsified lubricating fluid. 18. The wear and/or friction reducing additive of claim 17 wherein said anti-wear and/or anti-friction aqueous salt solution consists of salts formulated such that, when said aqueous salt solution is coated on a surface, said aqueous salt solution forms a conversion coating on said surface without the application of external electromotive force. 19. The wear and/or friction reducing additive of claim 18 wherein said non-hydroxy metal is selected from Groups I-VII of the Periodic Table and wherein said anti-wear and/or anti-friction aqueous salt solution comprises salts obtained from separate acid-base reactions of sulfuric acid or phosphoric acid with ammonium hydroxide and alkali metal hydroxide. 20. The wear and/or friction reducing additive of claim 19 wherein said non-hydroxy metal compounds in said anti-wear and/or anti-friction aqueous salt solution are boric acid and zinc oxide.
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이 특허에 인용된 특허 (4)
Yasuo Imai JP; Shuji Nagata JP, Composition and process for lubricated plastic working of metals.
Richmond, Robert Chaffee; Schramm, Jr., Harry F.; Defalco, Francis G., Friction and wear modifiers using solvent partitioning of hydrophilic surface-interactive chemicals contained in boundary layer-targeted emulsions.
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