GB933502A - Unsymmetrical poly (silarylenesiloxane) liquids - Google Patents

Unsymmetrical poly (silarylenesiloxane) liquids

Info

Publication number
GB933502A
GB933502A GB40409/59A GB4040959A GB933502A GB 933502 A GB933502 A GB 933502A GB 40409/59 A GB40409/59 A GB 40409/59A GB 4040959 A GB4040959 A GB 4040959A GB 933502 A GB933502 A GB 933502A
Authority
GB
United Kingdom
Prior art keywords
formula
silarylenesiloxane
liquids
halo
acid
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
GB40409/59A
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.)
General Electric Co
Original Assignee
General Electric Co
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 Electric Co filed Critical General Electric Co
Publication of GB933502A publication Critical patent/GB933502A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/48—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
    • C08G77/50—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages
    • C08G77/52—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms by carbon linkages containing aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/0834—Compounds having one or more O-Si linkage
    • C07F7/0838—Compounds with one or more Si-O-Si sequences
    • 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
    • C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
    • C10M107/50—Lubricating compositions characterised by the base-material being a macromolecular compound containing silicon
    • 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
    • C10M2229/042—Siloxanes with specific structure containing aromatic substituents
    • C10M2229/0425—Siloxanes with specific structure containing aromatic substituents used as base material
    • 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

Abstract

The invention comprises an acid-equilibrated chain stopped organopolysiloxane liquid comprising either an unsymmetrical, branched poly(silarylenesiloxane) liquid of the formula <FORM:0933502/IV(a)/1> or an unsymmetrically substituted poly(silarylenesiloxane) liquid of the formula <FORM:0933502/IV(a)/2> wherein each R is a lower alkyl, aryl, halo-alkyl or halo-aryl radical, each R1 is H or R, each Ar is an arylene or halo-arylene radical, m is a number from 1 up to the number of C atoms on Ar substitutable by R1, x, y, z and n are numbers from 1 to 50. Liquids of Formula II may be made by reacting an unsymmetricallysubstituted dihalo aromatic hydrocarbon with a dihalosilane, hydrolysing the resulting product with a triorganohalosilane and acid equilibrating the hydrolysate. Liquids of Formula I can be made by reacting an unsymmetrically substituted dihalo aromatic hydrocarbon with a dihalosilane, cohydrolysing the resulting product with an organotrihalosilane and a triorganohalosilane in such amounts that the organo/Si ratio of the mixture is more than 2, and acid-equilibrating the hydrolysate. Examples are given. Uses: As high temperature lubricants and hydraulic and heat transfer fluids.
GB40409/59A 1958-12-15 1959-11-27 Unsymmetrical poly (silarylenesiloxane) liquids Expired GB933502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78025958A 1958-12-15 1958-12-15

Publications (1)

Publication Number Publication Date
GB933502A true GB933502A (en) 1963-08-08

Family

ID=25119077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40409/59A Expired GB933502A (en) 1958-12-15 1959-11-27 Unsymmetrical poly (silarylenesiloxane) liquids

Country Status (1)

Country Link
GB (1) GB933502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114729128A (en) * 2020-03-10 2022-07-08 瓦克化学股份公司 Method for treating (M/D/T) -methylpolysiloxane mixtures from heat transfer applications

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114729128A (en) * 2020-03-10 2022-07-08 瓦克化学股份公司 Method for treating (M/D/T) -methylpolysiloxane mixtures from heat transfer applications
CN114729128B (en) * 2020-03-10 2024-03-22 瓦克化学股份公司 Method for treating (M/D/T) -methylpolysiloxane mixtures from heat transfer applications

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