DE2517475A1 - Verfahren zum herstellen von diorganopolysiloxanen hohen molekulargewichtes - Google Patents

Verfahren zum herstellen von diorganopolysiloxanen hohen molekulargewichtes

Info

Publication number
DE2517475A1
DE2517475A1 DE2517475A DE2517475A DE2517475A1 DE 2517475 A1 DE2517475 A1 DE 2517475A1 DE 2517475 A DE2517475 A DE 2517475A DE 2517475 A DE2517475 A DE 2517475A DE 2517475 A1 DE2517475 A1 DE 2517475A1
Authority
DE
Germany
Prior art keywords
carbon atoms
cyclic
radicals
catalyst
ppm
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Withdrawn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
DE2517475A
Other languages
German (de)
English (en)
Inventor
John Simon Razzano
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 DE2517475A1 publication Critical patent/DE2517475A1/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Withdrawn legal-status Critical Current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
    • C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing 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)
DE2517475A 1974-04-24 1975-04-19 Verfahren zum herstellen von diorganopolysiloxanen hohen molekulargewichtes Withdrawn DE2517475A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/463,435 US3937684A (en) 1974-04-24 1974-04-24 Process for producing high molecular weight diorganopolysiloxanes for use in heat vulcanizable silicone rubber compositions

Publications (1)

Publication Number Publication Date
DE2517475A1 true DE2517475A1 (de) 1975-11-13

Family

ID=23840068

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2517475A Withdrawn DE2517475A1 (de) 1974-04-24 1975-04-19 Verfahren zum herstellen von diorganopolysiloxanen hohen molekulargewichtes

Country Status (6)

Country Link
US (1) US3937684A (enExample)
JP (1) JPS5639777B2 (enExample)
CA (1) CA1048521A (enExample)
DE (1) DE2517475A1 (enExample)
FR (1) FR2308649A1 (enExample)
GB (1) GB1505747A (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619186A1 (de) * 1975-05-05 1976-11-18 Gen Electric Verfahren zum herstellen von diorganopolysiloxan-oelen
DE2621751A1 (de) * 1975-05-19 1976-12-02 Gen Electric Verfahren zum herstellen von silanolendgruppen aufweisenden diorganopolysiloxan- oelen
FR2310374A1 (fr) * 1975-05-05 1976-12-03 Gen Electric Procede de fabrication de copolymeres de diorgano-polysiloxanes et copolymeres obtenus
EP0119093A3 (en) * 1983-03-14 1986-03-05 Dow Corning Corporation Polymerization of polydiorganosiloxane in the presence of filler

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341888A (en) * 1974-04-24 1982-07-27 General Electric Company Diorganopolysiloxane copolymers and process for the preparation thereof
US4272624A (en) * 1974-04-24 1981-06-09 General Electric Company Process for producing high molecular weight diorganopolysiloxanes for use in heat vulcanizable silicone rubber compositions
US4138349A (en) * 1977-01-10 1979-02-06 General Electric Company Silicone lubricant compositions containing trischloroethyl-phosphite and/or bis-chloroethyl chloroethyl phosphonate
US4089833A (en) * 1977-05-02 1978-05-16 General Electric Company Process aids for fluorosilicone polymers
US4177200A (en) * 1977-11-25 1979-12-04 General Electric Company Silyl phosphates as neutralizing agents for alkali metal hydroxides
US4317899A (en) * 1978-11-13 1982-03-02 General Electric Company Process for producing fluorosilicone polymers
US4348531A (en) * 1979-08-30 1982-09-07 General Electric Company Fluorosilicone polydimethylsiloxane equilibration chainstopper and process for manufacture
US4436846A (en) 1979-11-07 1984-03-13 General Electric Company Composition and method for improving the properties of liquid media
US4267298A (en) * 1979-11-09 1981-05-12 General Electric Company Process for preparing M-stopped silicone fluids from silanol fluids
US4529774A (en) * 1982-08-20 1985-07-16 General Electric Company Treated silica fillers and process for making same
US4599437A (en) * 1984-10-29 1986-07-08 Wacker-Chemie Gmbh Continuous process for varying molecular weight of organopolysiloxanes
US5283308A (en) * 1992-10-05 1994-02-01 Dow Corning Corporation Neutralization of polyorganosiloxanes using triorganosilanes and curable compositions containing said polyorganosiloxanes
JP3546727B2 (ja) * 1998-12-02 2004-07-28 信越化学工業株式会社 オルガノポリシロキサンガムの製造方法
CN103154095A (zh) 2010-08-05 2013-06-12 生物膜Ip有限责任公司 环硅氧烷取代的聚硅氧烷化合物、包含所述化合物的组合物及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3132167A (en) * 1960-02-26 1964-05-05 Gen Electric Process for preparing linear silanol chain-stopped diorganopolysiloxanes
US3598851A (en) * 1963-12-16 1971-08-10 Gen Electric Cyclic organosilicon materials
GB1217335A (en) * 1967-04-10 1970-12-31 Midland Silicones Ltd Polymerisation of siloxanes
US3661962A (en) * 1969-05-09 1972-05-09 Stauffer Wacker Silicone Corp Molecular weight control and polysiloxanes
US3779987A (en) * 1972-10-12 1973-12-18 Gen Electric Process for producing diorganopolysiloxane polymers
US3842110A (en) * 1973-10-11 1974-10-15 Gen Electric Process for producing octaphenyltetracyclosiloxane

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2619186A1 (de) * 1975-05-05 1976-11-18 Gen Electric Verfahren zum herstellen von diorganopolysiloxan-oelen
FR2310371A1 (fr) * 1975-05-05 1976-12-03 Gen Electric Procede de fabrication d'huiles de diorganopolysiloxanes
FR2310374A1 (fr) * 1975-05-05 1976-12-03 Gen Electric Procede de fabrication de copolymeres de diorgano-polysiloxanes et copolymeres obtenus
DE2621751A1 (de) * 1975-05-19 1976-12-02 Gen Electric Verfahren zum herstellen von silanolendgruppen aufweisenden diorganopolysiloxan- oelen
EP0119093A3 (en) * 1983-03-14 1986-03-05 Dow Corning Corporation Polymerization of polydiorganosiloxane in the presence of filler

Also Published As

Publication number Publication date
JPS50143900A (enExample) 1975-11-19
CA1048521A (en) 1979-02-13
FR2308649A1 (fr) 1976-11-19
US3937684A (en) 1976-02-10
GB1505747A (en) 1978-03-30
JPS5639777B2 (enExample) 1981-09-16
FR2308649B1 (enExample) 1980-02-15

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