DE2511475A1 - Verfahren zum herstellen silanolendgruppen aufweisender diorganopolysiloxane - Google Patents

Verfahren zum herstellen silanolendgruppen aufweisender diorganopolysiloxane

Info

Publication number
DE2511475A1
DE2511475A1 DE19752511475 DE2511475A DE2511475A1 DE 2511475 A1 DE2511475 A1 DE 2511475A1 DE 19752511475 DE19752511475 DE 19752511475 DE 2511475 A DE2511475 A DE 2511475A DE 2511475 A1 DE2511475 A1 DE 2511475A1
Authority
DE
Germany
Prior art keywords
silanol
viscosity
acid
catalyst
radicals
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.)
Withdrawn
Application number
DE19752511475
Other languages
German (de)
English (en)
Inventor
Bruce Allan Ashby
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
Priority claimed from US452940A external-priority patent/US3903047A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of DE2511475A1 publication Critical patent/DE2511475A1/de
Withdrawn legal-status Critical Current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
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes
    • C08G77/08—Preparatory processes characterised by the catalysts used
    • 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
    • C08G77/04—Polysiloxanes
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C08G77/16—Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Silicon Polymers (AREA)
DE19752511475 1974-03-20 1975-03-15 Verfahren zum herstellen silanolendgruppen aufweisender diorganopolysiloxane Withdrawn DE2511475A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US452940A US3903047A (en) 1973-10-23 1974-03-20 Process for the production of silanol-stopped diorgano-polysiloxanes

Publications (1)

Publication Number Publication Date
DE2511475A1 true DE2511475A1 (de) 1975-09-25

Family

ID=23798586

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752511475 Withdrawn DE2511475A1 (de) 1974-03-20 1975-03-15 Verfahren zum herstellen silanolendgruppen aufweisender diorganopolysiloxane

Country Status (7)

Country Link
JP (1) JPS585928B2 (ja)
BE (1) BE826906A (ja)
CA (1) CA1044247A (ja)
DE (1) DE2511475A1 (ja)
FR (1) FR2264837B1 (ja)
GB (1) GB1506734A (ja)
IT (1) IT1034417B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065641A1 (de) * 2007-11-21 2009-05-28 Evonik Goldschmidt Gmbh Verfahren zur herstellung von polydimethylsiloxanen an sulfonsauren kationenaustauscherharzen

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1549344A (en) * 1975-05-19 1979-08-08 Gen Electric Process for producing silanol end-stopped diorganopolysiloxane oils
JP2678371B2 (ja) * 1987-08-31 1997-11-17 東レ・ダウコーニング・シリコーン株式会社 末端にアルケニル基を有するオルガノポリシロキサンの製造方法
JP3862007B2 (ja) 2002-05-31 2006-12-27 信越化学工業株式会社 スルホン化樹脂触媒の再活性化方法
TWI742534B (zh) * 2019-02-20 2021-10-11 日商旭化成股份有限公司 硬化物、硬化物改質體及硬化方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009065641A1 (de) * 2007-11-21 2009-05-28 Evonik Goldschmidt Gmbh Verfahren zur herstellung von polydimethylsiloxanen an sulfonsauren kationenaustauscherharzen
US8609798B2 (en) 2007-11-21 2013-12-17 Evonik Goldschmidt Gmbh Process for preparing polydimethylsiloxanes on sulphonic acid cation exchange resins
US8969502B2 (en) 2007-11-21 2015-03-03 Evonik Degussa Gmbh Process for preparing polydimethylsiloxanes on sulphonic acid cation exchange resins

Also Published As

Publication number Publication date
FR2264837B1 (ja) 1981-06-19
IT1034417B (it) 1979-09-10
JPS50133299A (ja) 1975-10-22
FR2264837A1 (ja) 1975-10-17
JPS585928B2 (ja) 1983-02-02
CA1044247A (en) 1978-12-12
GB1506734A (en) 1978-04-12
BE826906A (fr) 1975-07-16

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8130 Withdrawal