US4950415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water washable dry film lubricants
Assignee: ChampionX LLC
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Filing: 1989-11-17
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Granted: 1990-08-21
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Expires: 2009-11-17
Abstract
Abstract Metal working lubricant compositions are provided in which a dry film of a lubricant is formed on the metal being worked. The lubricant comprises an ester having a melting point of at least 100° F. and a solid surfactant having an HLB number in the range of about 7-12. The surfactant is solid at room temperature and will cause the lubricant to disperse in water at a temperature exceeding the lubricant's melting point. Consequently, the solid surfactant incorporated in the dry film lubricant allows lubricant removal by washing of the metal with just hot water. The invention also provides for metal working methods in which the lubricants are used.
Inventors
- 👤 John T. Malito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:40
CPC Classifications
C; C10; C10M; C10M111/00; C10M111/04; C10M105/00; C10M105/08; C10M105/32; C10M107/00; C10M107/20; C10M107/30; C10M107/32; C10M107/34; C10M129/00; C10M129/02; C10M129/68; C10M145/00; C10M145/18; C10M145/24; C10M145/26; C10M145/28; C10M145/36; C10M145/38; C10M169/00; C10M169/04; C10M169/044; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/2805; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/288; C10M2207/289; C10M2207/34; C10M2207/345; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/1033; C10M2209/104; C10M2209/1045; C10M2209/105; C10M2209/1055; C10M2209/106; C10M2209/1065; C10M2209/107; C10M2209/1075; C10M2209/108; C10M2209/1085; C10M2209/109; C10M2209/1095; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
97 words
A dry film lubricant composition for metal working comprising an ester for lubricating the interface of a body of metal and metal working apparatus working the body and having a melting point of at least about 100° F. and a surfactant that is solid at room temperature and has an HLB number in the range of about 7-12, wherein the application of hot water to a metal body having the composition thereon will melt the ester and the surfactant will disperse the ester in the hot water for removal of the lubricant by washing in hot water.
Claim 2
Dependent Claim
97 words
A dry film lubricant composition for metal working comprising an ester for lubricating the interface of a body of metal and metal working apparatus working the body and having a melting point of at least about 100° F. and a surfactant that is solid at room temperature and has an HLB number in the range of about 7-12, wherein the application of hot water to a metal body having the composition thereon will melt the ester and the surfactant will disperse the ester in the hot water for removal of the lubricant by washing in hot water.
Claim 3
Dependent Claim
66 words
The composition as recited in claim 1 wherein the ester is formed from at least one acid selected from the group consisting essentially of lauric, myristic, palmitic, stearic, hydroxystearic, arachidic, behenic, erucic, lignoceric, citric and lactic, and at least one alcohol selected from the group consisting essentially of lauryl, myristyl, palmityl, stearyl, arachidyl, behenyl, erucyl, lignoceryl, glycerol, polyglycerol, trimethylolpropane, ethylene glycols, propylene glycols, sorbitols and polysorbitols.
Claim 4
Dependent Claim
22 words
The composition as recited in claim 1 wherein the surfactant has a melting point temperature in the range of about 120°-160° F.
Claim 5
Dependent Claim
39 words
The composition as recited in claim 3 wherein the surfactant is selected from the group consisting essentially of ethoxylated C12-C18 fatty acids having 2-10 moles of ethylene oxide and ethoxylated C9-C18 fatty alcohols having 2-10 moles of ethylene oxide.
Claim 6
Dependent Claim
21 words
The composition as recited in claim 1 wherein the ester has a melting point in the range of about 120°-160° F.
Claim 7
Dependent Claim
114 words
A process for metal working utilizing a dry film lubricant composition comprising an ester having a melting point of at least about 100° F. and a surfactant that is solid at room temperature and has an HLB number in the range of about 7-12, wherein the application of hot water to a metal body having the composition thereon will melt the ester and the surfactant will disperse the ester in the hot water for removal of the lubricant by washing in hot water, comprising: applying the lubricant composition to the metal to be worked, working the metal to a desired shape, and thereafter washing the metal with hot water to remove the lubricant composition.
Claim 8
Dependent Claim
114 words
A process for metal working utilizing a dry film lubricant composition comprising an ester having a melting point of at least about 100° F. and a surfactant that is solid at room temperature and has an HLB number in the range of about 7-12, wherein the application of hot water to a metal body having the composition thereon will melt the ester and the surfactant will disperse the ester in the hot water for removal of the lubricant by washing in hot water, comprising: applying the lubricant composition to the metal to be worked, working the metal to a desired shape, and thereafter washing the metal with hot water to remove the lubricant composition.
Claim 9
Dependent Claim
12 words
The process as recited in claim 6 wherein the metal is aluminum.
Claim 10
Dependent Claim
95 words
A composition for making an aqueous lubrication mixture to be used in metal working comprising: an ester having a melting point of at least 100° F. and formed from at least one acid selected from the group consisting essentially of lauric, myristic, palmitic, stearic, hydroxystearic, arachidic, behenic, erucic, lignoceric, citric and lactic and at least one alcohol selected from the group consisting essentially of lauryl, myristyl, palmityl, stearyl, arachidyl, behenyl, erucyl, lignoceryl, glycerol, polyglycerol, trimethylolpropane, ethylene glycols, propylene glycols, sorbitols and polysorbitols; and a solid surfactant having an HLB in the range of about 7-12.
Claim 11
Dependent Claim
95 words
A composition for making an aqueous lubrication mixture to be used in metal working comprising: an ester having a melting point of at least 100° F. and formed from at least one acid selected from the group consisting essentially of lauric, myristic, palmitic, stearic, hydroxystearic, arachidic, behenic, erucic, lignoceric, citric and lactic and at least one alcohol selected from the group consisting essentially of lauryl, myristyl, palmityl, stearyl, arachidyl, behenyl, erucyl, lignoceryl, glycerol, polyglycerol, trimethylolpropane, ethylene glycols, propylene glycols, sorbitols and polysorbitols; and a solid surfactant having an HLB in the range of about 7-12.
Claim 12
Dependent Claim
19 words
The composition as recited in claim 8 wherein the composition further includes an effective amount of phosphate corrosion inhibitor.
Claim 13
Dependent Claim
19 words
The composition as recited in claim 9 wherein the composition further includes an effective amount of copper corrosion inhibitor.
Claim 14
Dependent Claim
15 words
The composition as recited in claim 8 wherein the composition further includes an alkoxylated amine.
Claim 15
Dependent Claim
14 words
The composition as recited in claim 8 wherein the composition further includes a glycol.
Claim 16
Dependent Claim
26 words
The composition as recited in claim 8 further includes an alcohol selected from the group consisting essentially of lauryl, myristyl, palmityl, stearyl, arachidyl, behenyl and erucyl.
Claim 17
Dependent Claim
111 words
An aqueous lubrication composition for application to a metal to be worked, comprising: about 60-90% by weight of water; about 10-30% by weight of an ester having a melting point of at least about 100° F.; about 2-6% by weight of a solid surfactant having an HLB number in the range of about 7-12; about 0-1% by weight of a phosphate corrosion inhibitor; about 0-1% by weight of a copper corrosion inhibitor; about 0-1% by weight of an alkoxylated amine; about 0-8% by weight of a glycol; and about 0-2% by weight of a fatty alcohol selected from the group consisting essentially of lauryl, myristyl, palmityl, stearyl, arachidyl, behenyl and erucyl.
Claim 18
Dependent Claim
111 words
An aqueous lubrication composition for application to a metal to be worked, comprising: about 60-90% by weight of water; about 10-30% by weight of an ester having a melting point of at least about 100° F.; about 2-6% by weight of a solid surfactant having an HLB number in the range of about 7-12; about 0-1% by weight of a phosphate corrosion inhibitor; about 0-1% by weight of a copper corrosion inhibitor; about 0-1% by weight of an alkoxylated amine; about 0-8% by weight of a glycol; and about 0-2% by weight of a fatty alcohol selected from the group consisting essentially of lauryl, myristyl, palmityl, stearyl, arachidyl, behenyl and erucyl.
Claim 19
Dependent Claim
25 words
The composition as recited in claim 14 wherein the surfactant, ester, and fatty alcohol all have melting points in the range of about 120°-160° F.
Claim 20
Dependent Claim
138 words
A process for metal working comprising the steps of applying an aqueous lubrication composition comprising: about 60-90% by weight of water; about 10-30% by weight of a ester having a melting point of at least about 100° F.; about 2-6% be weight of a solid surfactant having an HLB number in the range of abut 7-12; about 0-1% by weight of a phosphate corrosion inhibitor; about 0-1% weight of a copper corrosion inhibitor; about 0-1% by weight of an alkoxylated amine; about 0-8% by weight of a glycol; and about 0-2% by weight of a fatty alcohol selected from the group consisting essentially of lauryl, myristyl, palmityl, stearyl, arachidyl, behenyl and erucyl, to the metal to be worked, working the metal to a desired shape, and thereafter washing the metal with hot water to remove the lubricant composition.
Claim 21
Dependent Claim
138 words
A process for metal working comprising the steps of applying an aqueous lubrication composition comprising: about 60-90% by weight of water; about 10-30% by weight of a ester having a melting point of at least about 100° F.; about 2-6% be weight of a solid surfactant having an HLB number in the range of abut 7-12; about 0-1% by weight of a phosphate corrosion inhibitor; about 0-1% weight of a copper corrosion inhibitor; about 0-1% by weight of an alkoxylated amine; about 0-8% by weight of a glycol; and about 0-2% by weight of a fatty alcohol selected from the group consisting essentially of lauryl, myristyl, palmityl, stearyl, arachidyl, behenyl and erucyl, to the metal to be worked, working the metal to a desired shape, and thereafter washing the metal with hot water to remove the lubricant composition.
Claim 22
Dependent Claim
12 words
The process as recited in claim 16 wherein the metal is aluminum.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |