[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

US3379644A - Hydraulic fluid compositions - Google Patents

Hydraulic fluid compositions Download PDF

Info

Publication number
US3379644A
US3379644A US534663A US53466366A US3379644A US 3379644 A US3379644 A US 3379644A US 534663 A US534663 A US 534663A US 53466366 A US53466366 A US 53466366A US 3379644 A US3379644 A US 3379644A
Authority
US
United States
Prior art keywords
parts
weight
ethylene glycol
water
hydraulic fluid
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
US534663A
Inventor
Katzenstein William
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.)
GAF Chemicals Corp
Original Assignee
General Aniline and Film Corp
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 General Aniline and Film Corp filed Critical General Aniline and Film Corp
Priority to US534663A priority Critical patent/US3379644A/en
Application granted granted Critical
Publication of US3379644A publication Critical patent/US3379644A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • 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
    • C10M2201/02—Water
    • 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
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/26—Amines
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/102—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon only in the ring
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
    • C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
    • C10M2219/106—Thiadiazoles
    • 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
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids
    • 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
    • C10N2050/01—Emulsions, colloids, or micelles

Definitions

  • the present invention relates generally to hydraulic fluids useful fortransmitting pressure in closed systems. More particularly, it relates to a new and useful hydraulic fluid composition containing an ethoxylated long chain alkylated phenol thickening agent.
  • Hydraulic fluids having a castor oil base or a polymer-thickened petroleum base have been employed but have not been entirely satisfactory due to the fact that they constitute a serious fire hazard. Because of the inflammability of these conventional hydraulic fluid compositions, there is a'constant danger of fires resulting from breaks in high pressure hydraulic fluid lines or from leaks rising from mechanical or packing failures or from other obvious means. Moreover, these conventional hydraulic fluid compositions are undesirable because they tend to swell the various parts made of rubber or the like, which are used in pressure transmitting systems.
  • one object of the present invention is to provide a new and useful hydraulic fluid composition which will overcome the disadvantages of the prior art compositions.
  • Another object of the present invention is to provide a new and improved, low-cost hydraulic fluid composition intended for use particularly in hydraulic braking systems or servo-mechanisms or the like which is non-flammable, of good viscosity and which will not appreciably corrode, attack or otherwise deliteriously affect the various metallic and non-metallic materials commonly employed in servo systems or hydraulic braking systems or the like.
  • the present invention contemplates a new and improved hydraulic fluid composition prepared by the addition of an eifective, low cost, compatible thickener to an ethylene glycol-water fluid composition.
  • Said new and improved composition may also contain small amounts of appropriate and well known additives, such as corrosion inhibitors, vapor-phase inhibitors and also soluble detergents if desired.
  • the instant invention pertains to hydraulic fluid compositions containing ethylene glycol, water, and as the thickening agent an ethoxylated dinonyl phenol and if desired, a small amount of the above mentioned additives.
  • the ethoxylated dinonyl phenol referred to in this invention is one in which dinonyl phenol has been condensed with about 12 to 18.5 molar proportions of ethylene oxide, in other words, one in which the polyoxyethylene radical comprises 60-70% by weight of the compound. It may also be defined as ethoxylated dinonyl phenol +60-70% EtO. While it is obvious that the amount of thickener to be used depends on the viscosity 3,379,644 Patented Apr.
  • the ethylene glycol-water mixture of this invention may consist essentially of from about 40-65 parts by weight of ethylene glycol and 35-60 parts by Weight of water. However, it is preferred to utilize a glycol-water weight ratio in the range of 50-65 parts of ethylene glycol and 35-50 parts of water.
  • the instant invention is directed to a hydraulic fluid composition
  • a hydraulic fluid composition comprising (1) to 92 parts by weight of an ethylene glycol-water mixture and (2) as a thickening agent, 25 to 8 parts by weiyht of an ethoxylated dinonyl phenol in which its polyoxyethylene radical comprises 60 to 70% by weight of said ethoxylated dinonyl phenol; parts of said ethylene glycol-water mixture consisting essentially of about 40 to 65 parts by weight of ethylene glycol and about 60-35 parts by weight of water.
  • additives that may also be present, if desired, in a small amount such as from about 0.1 to 5.0 parts by weight of the total hydraulic fluid composition, there may be mentioned inhibitors such as sodium mercaptobenzothiazole, orthobenzoic ethanolamine, polymethylsiloxane, 2-amino-2-methyl-l-propanol and diisopropylamine nitrite.
  • inhibitors such as sodium mercaptobenzothiazole, orthobenzoic ethanolamine, polymethylsiloxane, 2-amino-2-methyl-l-propanol and diisopropylamine nitrite.
  • the unique" discovery that the instant ethoxylated dinonyl phenols may be used as viscosity improvers for glycol-water hydraulic fluids is most surprising since other ethoxylated higher alkyl phenols have been found to be unsatisfactory in that they do not appreciably affect the viscosity and/ or precipitate out at lower temperatures.
  • the ethoxylated dinonyl phenols used in this invention may be prepared by the conventional known process of reacting the dialkylphenol with the alkylene oxide, for example, as shown in US. Patent 2,593,112, issued Apr. 15, 1952.
  • Example I A novel hydraulic fluid composition was prepared by adding 8 parts by weight of dinonyl phenol condensed with about 15 molar proportions of ethylene oxide, i.e., one in which the polyoxyethylene radical comprises 65.8% by weight of the compound (hereinafter defined as ethoxylated dinonyl phenol +65.8% EtO), to 92 parts by Weight of a 50:50 percent mixture of ethylene glycol and water.
  • the resulting composition is an excellent hydraulic fluid which is nonflammable.
  • a second composition was prepared by following the same procedure except that 12 parts by weight of the ethoxylated dinonyl phenol +65.8% EtO were used.
  • the viscosities in centistokes at 100 F. and F. of the above prepared compositions were determined and compared to a mixture of 50 parts of ethylene glycol and 50 parts of water free from said ethoxylated dinonyl phenol +65.8% EtO.
  • the results were as follows.
  • TAB LE 1 Ethylene Glycol-Water Cone. of Ethoxylated KV-130 50-50 parts by wt.
  • Example II By way of comparison the procedure in Example I was repeated to prepare two separate compositions, one of which contained 8 parts by weight of nonyl phenol condensed with about 10.5 molar proportions of ethylene oxide (ethoxylated nonyl phenol +67.8% EtO) and the other contained 8 parts by weight of dodecyl phenol condensed with about 18 moles of ethylene oxide (ethoxylated dodecyl phenol +75.3% EtO). The former was found to havea viscosity in centistokes of 3.90 at 100 F., while the latter was found to have a viscosity in centistokes of 3.70 at 100 F.
  • Example IV Three separate hydraulic fluid compositions were prepared. The first composition was made up of 9.0 parts by weight of a mixture of ethylene glycol and water, and parts by weight of ethoxylated dinonyl phenol +65.8% EtO.
  • the second composition was made up of 86 parts by weight of a mixture of ethylene glycol and water, and 14 parts by weight of ethoxylated dinonyl phenol +65.8% EtO and the third composition was made up of 82 parts by weight of a mixture of ethylene glycol and water; and 18 parts by weight of ethoxylated dinonyl phenol +65% EtO.
  • the ethylene glycol-water mixture in all three compositions was made up of 65 percent ethylene glycol and 35 percent water. The viscosities in centistokes of the three compositions at 100 F. were determined and the results were as follows:
  • Example V Three separate hydraulic fluid compositions were prepared.
  • the first composition was made up of 90 parts by weight of a mixture of ethylene glycol and water, and 10 parts by weight of ethoxylated dinonyl phenol +70% EtO.
  • the second composition was made up of 86 parts by Weight of a mixture of ethylene glycol and water, and 14 parts by weight of ethoxylated dinonyl phenol +70% E tO and the third composition was made up of 82 partsby weight of a mixture of ethylene glycol and water, and. 18 parts by weight of ethoxylated dinonyl phenol +70% EtO.
  • the ethylene glycol-water mixture in all three compositions was made up of percent ethylene glycol and 35 percent water. The viscosities in centistokes of the three compositions at 100 F. were determined and the results were as follows:
  • a hydraulic fluid composition comprising (1) to 92 parts by weight of an ethylene glycol-water mixture and (2) as a thickening agent, 25 to 8 parts by weight 0t an ethoxylated dinonyl phenol in which its polyoxethylene radical comprises 60 to 70% by weight of said ethoxylated dinonyl phenol; parts of said ethylene glycol-water mixture consisting essentially of about 40 to 65 parts by weight of ethylene glycol and about 60-35 parts by weight of Water.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Description

United States Patent 3,379,644 HYDRAULIC FLUID COMPOSITIONS William Katzenstein, Broomal, Pa., assignor to General Aniline & Film Corporation, New York, N.Y., a corporation of Delaware No Drawing. Filed Mar. 16, 1966, Ser. No. 534,663 5 Claims. (Cl. 252-73) The present invention relates generally to hydraulic fluids useful fortransmitting pressure in closed systems. More particularly, it relates to a new and useful hydraulic fluid composition containing an ethoxylated long chain alkylated phenol thickening agent.
Considerable work has been done on the problem of developing a suitable pressure transmitting fluid for use in servo-mechanisms and hydraulic braking systems and the like. Hydraulic fluids having a castor oil base or a polymer-thickened petroleum base have been employed but have not been entirely satisfactory due to the fact that they constitute a serious fire hazard. Because of the inflammability of these conventional hydraulic fluid compositions, there is a'constant danger of fires resulting from breaks in high pressure hydraulic fluid lines or from leaks rising from mechanical or packing failures or from other obvious means. Moreover, these conventional hydraulic fluid compositions are undesirable because they tend to swell the various parts made of rubber or the like, which are used in pressure transmitting systems. Various glycolbase hydraulic fluids have heretofore been proposed, but have proven unsatisfactory due to their low viscosity and, more particularly, due to their excessive cost. Various water-base hydraulic fluids have also been proposed, but have proven unsatisfactory due to their low surface tension which results in a marked tendency of the fluid to leak out through materials which would normally confine a fluid of high surface tension.
Accordingly, one object of the present invention is to provide a new and useful hydraulic fluid composition which will overcome the disadvantages of the prior art compositions.
Another object of the present invention is to provide a new and improved, low-cost hydraulic fluid composition intended for use particularly in hydraulic braking systems or servo-mechanisms or the like which is non-flammable, of good viscosity and which will not appreciably corrode, attack or otherwise deliteriously affect the various metallic and non-metallic materials commonly employed in servo systems or hydraulic braking systems or the like. Other objects and advantages of the present invention will be readily apparent from the following detailed description as well as the appended claims.
Generally speaking, the present invention contemplates a new and improved hydraulic fluid composition prepared by the addition of an eifective, low cost, compatible thickener to an ethylene glycol-water fluid composition. Said new and improved composition may also contain small amounts of appropriate and well known additives, such as corrosion inhibitors, vapor-phase inhibitors and also soluble detergents if desired.
More particularly, the instant invention pertains to hydraulic fluid compositions containing ethylene glycol, water, and as the thickening agent an ethoxylated dinonyl phenol and if desired, a small amount of the above mentioned additives. The ethoxylated dinonyl phenol referred to in this invention is one in which dinonyl phenol has been condensed with about 12 to 18.5 molar proportions of ethylene oxide, in other words, one in which the polyoxyethylene radical comprises 60-70% by weight of the compound. It may also be defined as ethoxylated dinonyl phenol +60-70% EtO. While it is obvious that the amount of thickener to be used depends on the viscosity 3,379,644 Patented Apr. 23, 1968 "ice of the fluid that the particular pump and hydraulic system requires, it is preferred to use this thickener in amounts comprising approximately from 8-25% of the total formulation of the hydraulic fluid composition. Due to the use of this low cost thickener, the economics of glycol-water hydraulic fluids are appreciably more attractive and the viscosity of said fluids has been improved. The ethylene glycol-water mixture of this invention may consist essentially of from about 40-65 parts by weight of ethylene glycol and 35-60 parts by Weight of water. However, it is preferred to utilize a glycol-water weight ratio in the range of 50-65 parts of ethylene glycol and 35-50 parts of water. Thus the instant invention is directed to a hydraulic fluid composition comprising (1) to 92 parts by weight of an ethylene glycol-water mixture and (2) as a thickening agent, 25 to 8 parts by weiyht of an ethoxylated dinonyl phenol in which its polyoxyethylene radical comprises 60 to 70% by weight of said ethoxylated dinonyl phenol; parts of said ethylene glycol-water mixture consisting essentially of about 40 to 65 parts by weight of ethylene glycol and about 60-35 parts by weight of water. As examples of the above mentioned additives that may also be present, if desired, in a small amount such as from about 0.1 to 5.0 parts by weight of the total hydraulic fluid composition, there may be mentioned inhibitors such as sodium mercaptobenzothiazole, orthobenzoic ethanolamine, polymethylsiloxane, 2-amino-2-methyl-l-propanol and diisopropylamine nitrite.
The unique" discovery that the instant ethoxylated dinonyl phenols may be used as viscosity improvers for glycol-water hydraulic fluids is most surprising since other ethoxylated higher alkyl phenols have been found to be unsatisfactory in that they do not appreciably affect the viscosity and/ or precipitate out at lower temperatures. The ethoxylated dinonyl phenols used in this invention may be prepared by the conventional known process of reacting the dialkylphenol with the alkylene oxide, for example, as shown in US. Patent 2,593,112, issued Apr. 15, 1952.
The following examples are illustrative of the present invention and are not to be regarded as limitative. It is to be understood that all parts, percentages and proportions referred to herein and in the appended claims are by weight unless otherwise indicated.
Example I A novel hydraulic fluid composition was prepared by adding 8 parts by weight of dinonyl phenol condensed with about 15 molar proportions of ethylene oxide, i.e., one in which the polyoxyethylene radical comprises 65.8% by weight of the compound (hereinafter defined as ethoxylated dinonyl phenol +65.8% EtO), to 92 parts by Weight of a 50:50 percent mixture of ethylene glycol and water. The resulting composition is an excellent hydraulic fluid which is nonflammable. A second composition was prepared by following the same procedure except that 12 parts by weight of the ethoxylated dinonyl phenol +65.8% EtO were used. The viscosities in centistokes at 100 F. and F. of the above prepared compositions were determined and compared to a mixture of 50 parts of ethylene glycol and 50 parts of water free from said ethoxylated dinonyl phenol +65.8% EtO. The results were as follows.
TAB LE 1 Ethylene Glycol-Water Cone. of Ethoxylated KV-130 50-50 parts by wt.
Dinouyl Phenol plus 65.8% EtO 3 Example II By way of comparison the procedure in Example I was repeated to prepare two separate compositions, one of which contained 8 parts by weight of nonyl phenol condensed with about 10.5 molar proportions of ethylene oxide (ethoxylated nonyl phenol +67.8% EtO) and the other contained 8 parts by weight of dodecyl phenol condensed with about 18 moles of ethylene oxide (ethoxylated dodecyl phenol +75.3% EtO). The former was found to havea viscosity in centistokes of 3.90 at 100 F., while the latter was found to have a viscosity in centistokes of 3.70 at 100 F.
Example III TABLE 2 Ethylene Glycol-Water 50-50, parts by weight Cone. 10% Ethoxylated Thickener KV-IOO Cloud Pt. F.)
2. 14 Dodeeyl phenol plus 75.3% EtO 4. 32 210 Nonyl phenol plus 67.8% EtO 4. 3 210 Dinonyl phenol plus 65.8% EtO. 12.65 190 Example IV Three separate hydraulic fluid compositions were prepared. The first composition was made up of 9.0 parts by weight of a mixture of ethylene glycol and water, and parts by weight of ethoxylated dinonyl phenol +65.8% EtO. The second composition was made up of 86 parts by weight of a mixture of ethylene glycol and water, and 14 parts by weight of ethoxylated dinonyl phenol +65.8% EtO and the third composition was made up of 82 parts by weight of a mixture of ethylene glycol and water; and 18 parts by weight of ethoxylated dinonyl phenol +65% EtO. The ethylene glycol-water mixture in all three compositions was made up of 65 percent ethylene glycol and 35 percent water. The viscosities in centistokes of the three compositions at 100 F. were determined and the results were as follows:
TABLE 3 Ethylene Glycol-Water 65-35, Cone. Ethoxylated Dinonyl Phenol parts by weight Plus 65.8% EtO KV-IOO Cloud Pt. F.)
Example V Three separate hydraulic fluid compositions were prepared. The first composition was made up of 90 parts by weight of a mixture of ethylene glycol and water, and 10 parts by weight of ethoxylated dinonyl phenol +70% EtO. The second composition was made up of 86 parts by Weight of a mixture of ethylene glycol and water, and 14 parts by weight of ethoxylated dinonyl phenol +70% E tO and the third composition was made up of 82 partsby weight of a mixture of ethylene glycol and water, and. 18 parts by weight of ethoxylated dinonyl phenol +70% EtO. The ethylene glycol-water mixture in all three compositions was made up of percent ethylene glycol and 35 percent water. The viscosities in centistokes of the three compositions at 100 F. were determined and the results were as follows:
TAB LE 4 Ethylene Glycol-Water 65-35,
parts by weight Cone. Ethoxylated Dinonyl Phenol Plus EtO Various modifications and variations of this invention will be obvious to a worker skilled in the art and it is understood that such modifications and variations are to be included within the purview of this application and the spirit and scope of the appended claims.
I claim:
1. A hydraulic fluid composition comprising (1) to 92 parts by weight of an ethylene glycol-water mixture and (2) as a thickening agent, 25 to 8 parts by weight 0t an ethoxylated dinonyl phenol in which its polyoxethylene radical comprises 60 to 70% by weight of said ethoxylated dinonyl phenol; parts of said ethylene glycol-water mixture consisting essentially of about 40 to 65 parts by weight of ethylene glycol and about 60-35 parts by weight of Water.
2. A hydraulic fluid composition according to claim 1, wherein the ethylene glycol-water mixture consists essentially of about 50-65 parts by weight of ethylene glycol and about 50-35 parts by weight of water.
3. A hydraulic fluid composition according to claim 1, wherein the thickening agent is an ethoxylated dinonyl phenol in which its polyoxyethylene radical comprises 65.8% by weight of said ethoxylated dinonyl phenol.
4. A hydraulic fluid composition according to claim 1, wherein the thickening agent is an ethoxylated dinonyl phenol in which its polyoxethylene radical comprises 70% by weight of said ethoxylated dinonyl phenol.
5. A hydraulic fluid composition according to claim 3, wherein the ethylene glycol-water mixture consists essentially of about 50 parts by weight of ethylene glycol and 50 parts by weight of water.
References Cited UNITED STATES PATENTS MURRAY KATZ, Primary Examiner.
S. D. SCHWARTZ, Assistant Examiner.

Claims (1)

1. A HYDRAULIC FLUID COMPOSITION COMPRISING (1) 75 TO 92 PARTS BY WEIGHT OF AN ETHYLENE GLYCOL-WATER MIXTURE AND (2) AS A THICKENING AGENT, 25 TO 8 PARTS BY WEIGHT OF AN ETHOXYLATED DINONYL PHENOL IN WHICH ITS POLYOXETHYLENE RADICAL COMPRISES 60 TO 70% BY WEIGHT OF SAID ETHOXYLATED DINONYL PHENOL; 100 PARTS OF SAID ETHYLENE GLYCOL-WATER MIXTURE CONSISTING ESSENTIALLY OF ABOUT 40 TO 65 PARTS BY WEIGHT OF ETHYLENE GLYCOL AND ABOUT 60-35 PARTS BY WEIGHT OF WATER.
US534663A 1966-03-16 1966-03-16 Hydraulic fluid compositions Expired - Lifetime US3379644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US534663A US3379644A (en) 1966-03-16 1966-03-16 Hydraulic fluid compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US534663A US3379644A (en) 1966-03-16 1966-03-16 Hydraulic fluid compositions

Publications (1)

Publication Number Publication Date
US3379644A true US3379644A (en) 1968-04-23

Family

ID=24131008

Family Applications (1)

Application Number Title Priority Date Filing Date
US534663A Expired - Lifetime US3379644A (en) 1966-03-16 1966-03-16 Hydraulic fluid compositions

Country Status (1)

Country Link
US (1) US3379644A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52101361A (en) * 1976-01-23 1977-08-25 Sanyo Chemical Ind Ltd Lubricant for point of rail
JPS52101362A (en) * 1976-01-29 1977-08-25 Sanyo Chemical Ind Ltd Lubricant for point of new rail
US4233170A (en) * 1978-02-07 1980-11-11 Sanyo Chemical Industries, Limited Water-glycol hydraulic fluid containing polyoxyalkylene ethers
US4606837A (en) * 1985-01-30 1986-08-19 Texaco Inc. Water-glycol fluids made from polyoxyalkylene thickeners
US8322194B2 (en) * 2006-07-20 2012-12-04 Endress + Hauser Gmbh + Co. Kg Apparatus for ascertaining and/or monitoring a process variable of a medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593112A (en) * 1948-12-15 1952-04-15 Gen Aniline & Film Corp Emulsifying agents
US2947699A (en) * 1955-09-14 1960-08-02 Exxon Research Engineering Co Non-inflammable hydraulic fluid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593112A (en) * 1948-12-15 1952-04-15 Gen Aniline & Film Corp Emulsifying agents
US2947699A (en) * 1955-09-14 1960-08-02 Exxon Research Engineering Co Non-inflammable hydraulic fluid

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52101361A (en) * 1976-01-23 1977-08-25 Sanyo Chemical Ind Ltd Lubricant for point of rail
JPS5527598B2 (en) * 1976-01-23 1980-07-22
JPS52101362A (en) * 1976-01-29 1977-08-25 Sanyo Chemical Ind Ltd Lubricant for point of new rail
JPS5527599B2 (en) * 1976-01-29 1980-07-22
US4233170A (en) * 1978-02-07 1980-11-11 Sanyo Chemical Industries, Limited Water-glycol hydraulic fluid containing polyoxyalkylene ethers
US4606837A (en) * 1985-01-30 1986-08-19 Texaco Inc. Water-glycol fluids made from polyoxyalkylene thickeners
US8322194B2 (en) * 2006-07-20 2012-12-04 Endress + Hauser Gmbh + Co. Kg Apparatus for ascertaining and/or monitoring a process variable of a medium

Similar Documents

Publication Publication Date Title
US2509620A (en) Nonflammable hydraulic fluid
US4260499A (en) Water-based lubricants
US3637507A (en) Aircraft hydraulic fluid and method of controlling acid buildup therein with acid acceptor
JP2812964B2 (en) Water-glycol type hydraulic fluid
US2652361A (en) Grease compositions
US2462694A (en) Nonflammable hydraulic fluid
US2558030A (en) Noninflammable hydraulic fluids and lubricants
US3379644A (en) Hydraulic fluid compositions
US3050465A (en) Water-in-oil emulsion hydraulic fluids
US2967831A (en) Hydraulic fluid and its preparation
US2944976A (en) Functional fluids
US3377288A (en) Hydraulic pressure transmission fluid
US2768141A (en) Noninflammable hydraulic fluids
US3865743A (en) Functional fluids
US2836565A (en) Lubricating compositions
US3769220A (en) Antifreeze composition
US4219434A (en) Hydraulic fluid compositions based on mixed glycol ether-glycol boric acid esters
US3707500A (en) Functional fluid composition
US3432437A (en) Fire resistant hydraulic fluid and lubricant compositions
US2905642A (en) Viscosity hydraulic fluid
CN111575098A (en) Special high-temperature-resistant flame-retardant wear-resistant hydraulic fluid for coking and preparation method thereof
US2588970A (en) Hydraulic fluid composition
JPS6043396B2 (en) Water-based energy transfer fluid compositions
US3538003A (en) Brake fluids
US2528347A (en) Nonflammable hydraulic fluid