US2137147A - Rust or corrosion preventing material or lubricant - Google Patents

Rust or corrosion preventing material or lubricant Download PDF

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Publication number
US2137147A
US2137147A US127316A US12731637A US2137147A US 2137147 A US2137147 A US 2137147A US 127316 A US127316 A US 127316A US 12731637 A US12731637 A US 12731637A US 2137147 A US2137147 A US 2137147A
Authority
US
United States
Prior art keywords
lubricant
lead
soap
rust
rubber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US127316A
Inventor
Styles Eric Rofe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SILVERTOWN LUBRICANTS Ltd
Original Assignee
SILVERTOWN LUBRICANTS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SILVERTOWN LUBRICANTS Ltd filed Critical SILVERTOWN LUBRICANTS Ltd
Application granted granted Critical
Publication of US2137147A publication Critical patent/US2137147A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/18—Natural waxes, e.g. ceresin, ozocerite, bees wax, carnauba; Degras
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/402—Castor oils
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/08—Groups 4 or 14
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Definitions

  • This invention relates to solid, semi-liquid or liquid materials havinglubricating and/or rust or corrosion-resisting. or preventing properties.
  • the object'of the present invention is to provide 1 a stable lubricant and/or material adapted to afford protection against rust or corrosion, which is substantially innocuous or relatively harmless to rubber, rubber-like masses or rubber C0111:
  • lubricant or material may be freely used in situations where it is difficult or impossible to avoid its coming into contact with rubber or the like or with materials incorporating it, vulcanized or otherwise.
  • 'It is a further object of theinvention to provide a substantially anhydrous lubricant having the above mentioned qualities. 1
  • the invention is based upon the observatio that no appreciable deleterious action on rubber and rubber-like masses results from treatment with "castor oil in the absence of petroleum hydrocarbons and free fatty acids and that castor .oil assumes desirable physicalcharacteristics when incorporated with an oil soluble metal soap.
  • a material suitable for use as a lubricant or corrosion-resisting coating material comprises castor oil and a metal soap (other than an alkali metal'soap) and is substantially free from free fatty acids and petroleum hydrocarbons.
  • amaterial suitable for use as a lubricant or corrosionresisting coating material is prepared by? in- 10% and, preferably, not morethan'about 2 /2% 10 1 stances should be avoided.
  • a lubricant of medium hardness may be prepared by proceeding in the manner described above 'andincreasing the lead stearate content to 15% of the castor oil.
  • a hard lubricant is obtained when an amount of lead ,stearate of from 3Q corporating castor oil with a metal soap (other.
  • the heavy metal soaps and in particular the lead soaps.
  • the lead soaps produce an unctuous, sticky, free-flowinggrease with excellent properties as an extreme pressure lubricant.
  • the amount of the. metal soap'employed is desirably adjusted according to the, d'esiredviscosity or consistency of the material, a con"-' venient range of concentration being fromabout 8% to about 30% of the castor oil.
  • a material having 7 resisting qualities and suitable for use in contact withrubber consisting of castor oil and a metal soap, other than an alkali metal soap, and a basic substance capable'of neutralizing the free fatty acids present in the oil.
  • a material is claimed in claim 1 wherein the I metal soap is lead stearate.
  • resisting properties and suitable for use in contact with rubber formed essentially from castor oil, a heavy metal soap, and the carbonate of the heavy metal of the soap in amount at least equivalent to free acid present in the oil.
  • a material having lubricating and corrosion resisting properties and suitable for use in contact with rubber formed essentially of castor oil, a lead soap'and lead carbonate in amount at least equivalentto ,free fatty acid present in the oil.

Description

Patented Nov. 15, 1938 UNITED SIT-ATE nus'r omcoaaosioN ranvnu'rmc Mari-mm on. LUBRICANT Eric Rofe Styles, Minoco Wharf, West Silvertown, London, England, assignor to Sllvertown Lnbricants Limited, London, England No Drawing. Application February 23, 1937, Serial-No. 127,316. In Great Britain February 4,
This invention relates to solid, semi-liquid or liquid materials havinglubricating and/or rust or corrosion-resisting. or preventing properties.
' it Claims. (01. s'i-s) Other substanceswhich are free from petroleum hydrocarbons may be added to the material for r the purpose of modifying its properties; for ex- The object'of the present invention is to provide 1 a stable lubricant and/or material adapted to afford protection against rust or corrosion, which is substantially innocuous or relatively harmless to rubber, rubber-like masses or rubber C0111:
pounds, with-the advantage that the lubricant or material may be freely used in situations where it is difficult or impossible to avoid its coming into contact with rubber or the like or with materials incorporating it, vulcanized or otherwise. 'It is a further object of theinvention to provide a substantially anhydrous lubricant having the above mentioned qualities. 1 The invention is based upon the observatio that no appreciable deleterious action on rubber and rubber-like masses results from treatment with "castor oil in the absence of petroleum hydrocarbons and free fatty acids and that castor .oil assumes desirable physicalcharacteristics when incorporated with an oil soluble metal soap.
According to the invention, a material suitable for use as a lubricant or corrosion-resisting coating material comprises castor oil and a metal soap (other than an alkali metal'soap) and is substantially free from free fatty acids and petroleum hydrocarbons.
Also in accordance with the invention, amaterial suitable for use as a lubricant or corrosionresisting coating material is prepared by? in- 10% and, preferably, not morethan'about 2 /2% 10 1 stances should be avoided.
ample neutral wool grease may be included to increase the anti-corrosive properties. As, however, it appears that such additional substances are not without some deleterious effect on'rubber,
even in the case of neutral wool grease, it is de- I sirable to limit the addition to not more than of the lubricant; while if it is'desired to obtain the maximum inertness towards rubber in the composition of the invention such additional sub- In carrying the invention into effect according 15 to one convenient method for producing a soft lubricant having a melting point in the range 75 to 100 C., castor oil is heated together with from 8 to 10% of lead stearate, the temperature employed being sufficient only to melt the lead 0 soap completely, e. g. 125 'C.,-since the use of higher temperatures mayresult in discoloration of the product. Any'acidity in the mixture is neutralized by addition of the amount of leadcarbonate.
A lubricant of medium hardness may be prepared by proceeding in the manner described above 'andincreasing the lead stearate content to 15% of the castor oil. A hard lubricant is obtained when an amount of lead ,stearate of from 3Q corporating castor oil with a metal soap (other.
A treatment of the castor oil with any suitable basic substance in quantity at least equivalent to the free fatty acid content; a preferred basic sub-'- stance being the carbonate of the metal 01' the soap employ especiallyif the quantity of free fatty acid is relatively large.
In carrying out the. invention, it is' preferred to employ-the heavy metal soaps and in particular the lead soaps. The lead soaps produce an unctuous, sticky, free-flowinggrease with excellent properties as an extreme pressure lubricant.
The amount of the. metal soap'employed is desirably adjusted according to the, d'esiredviscosity or consistency of the material, a con"-' venient range of concentration being fromabout 8% to about 30% of the castor oil.
- 25 to 30% is employed. v
A's lead stearate hasa higher melting point than most common lead soaps, the substitution of other lead soap for the leadstearate in the exappropriate amples given above will usually result in a lubricant of lower melting point. Having now described claim as new and desire to Patent is:
1. A material having 7 resisting qualities and suitable for use in contact withrubber, consisting of castor oil anda metal soap, other than an alkali metal soap, and a basic substance capable'of neutralizing the free fatty acids present in the oil.
secure by Letters metal soap in amount from 8% to 30% of the my invention, what I lubricating and corrosion- 40 2. A material having lubricating and corrosionamount of castor oil, and a basic substance capable of neutralizing the free fatty acids in the oil. 3. A material as claimed in claim 1 wherein the metal soap, is a lead soap.
4. A material is claimed in claim 1 wherein the I metal soap is lead stearate.
resisting properties and suitable for use in contact with rubber, formed essentially from castor oil, a heavy metal soap, and the carbonate of the heavy metal of the soap in amount at least equivalent to free acid present in the oil.
9. A material having lubricating and corrosion resisting properties and suitable for use in contact with rubber, formed essentially of castor oil, a lead soap'and lead carbonate in amount at least equivalentto ,free fatty acid present in the oil.
' 10. A material as claimed in claim 9 wherein 10 the lead soap is lead stearate.
ERIC ROFE STYLES,
US127316A 1936-02-04 1937-02-23 Rust or corrosion preventing material or lubricant Expired - Lifetime US2137147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2137147X 1936-02-04

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500120A (en) * 1948-03-19 1950-03-07 Standard Oil Dev Co Hard film corrosion preventive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500120A (en) * 1948-03-19 1950-03-07 Standard Oil Dev Co Hard film corrosion preventive

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