GB795957A - Graphite suspension and method of making the same - Google Patents

Graphite suspension and method of making the same

Info

Publication number
GB795957A
GB795957A GB4788/55A GB478855A GB795957A GB 795957 A GB795957 A GB 795957A GB 4788/55 A GB4788/55 A GB 4788/55A GB 478855 A GB478855 A GB 478855A GB 795957 A GB795957 A GB 795957A
Authority
GB
United Kingdom
Prior art keywords
graphite
molecular weight
mixture
volatile solvent
milling
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
Application number
GB4788/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB795957A publication Critical patent/GB795957A/en
Expired 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
    • 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
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • 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
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • C10M2201/042—Carbon; Graphite; Carbon black halogenated, i.e. graphite fluoride
    • 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
    • C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
    • 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
    • C10M2205/20—Natural rubber; Natural resins
    • 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
    • C10N2040/10—Running-in-oil ; Grinding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

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

Abstract

A stable graphite suspension is made by dispersing finely-divided graphite in a plastic, sticky, aliphatic hydrocarbon polymer or copolymer having a molecular weight of at least 10,000, to form a mixture composed substantially wholly of carbon and hydrogen, milling the mixture between rotating rolls under high pressure to reduce the size of the graphite particles, and dissolving in a liquid hydrocarbon medium. The hydrocarbon medium may be a mixture of a lubricating oil and a volatile solvent, e.g. hexane or petroleum benzine. On heating the solution, the polymer depolymerizes and distils off together with the volatile solvent, leaving a graphite suspension which may be added to lubricating oils, diesel oils or gasoline; addition to a gasoline containing tetra-ethyl lead results in reduced deposition of lead in an engine. The graphite particles have an average size of less than 0.1 micron. Suitable polymers and copolymers are derived from isobutylene, ethylene, partially depolymerized rubber, butadiene, propylene, isoprene and n-butylene. In examples, polyisobutylene of molecular weight 60,000, and polyisoprene of molecular weight 300,000, are used; milling takes place between horizontal cylindrical rolls rotating at different speeds. Specification 535,293 is referred to.
GB4788/55A 1954-02-18 1955-02-17 Graphite suspension and method of making the same Expired GB795957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US795957XA 1954-02-18 1954-02-18

Publications (1)

Publication Number Publication Date
GB795957A true GB795957A (en) 1958-06-04

Family

ID=22151532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4788/55A Expired GB795957A (en) 1954-02-18 1955-02-17 Graphite suspension and method of making the same

Country Status (1)

Country Link
GB (1) GB795957A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127689B (en) * 1961-02-24 1962-04-12 Rheinstahl Eisenwerke Gelsenki Tools for hot pressing and drop forging of metals and alloys
US3384580A (en) * 1967-05-09 1968-05-21 Acheson Ind Inc Graphite dispersions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127689B (en) * 1961-02-24 1962-04-12 Rheinstahl Eisenwerke Gelsenki Tools for hot pressing and drop forging of metals and alloys
US3384580A (en) * 1967-05-09 1968-05-21 Acheson Ind Inc Graphite dispersions
US3384581A (en) * 1967-05-09 1968-05-21 Acheson Ind Inc Solid lubricant and pigment dispersions

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