BR8806293A - Processo para a preparacao de diorganopolissiloxanos apresentando nas unidades terminais cada uma,um grupo hidroxila si-ligado - Google Patents

Processo para a preparacao de diorganopolissiloxanos apresentando nas unidades terminais cada uma,um grupo hidroxila si-ligado

Info

Publication number
BR8806293A
BR8806293A BR888806293A BR8806293A BR8806293A BR 8806293 A BR8806293 A BR 8806293A BR 888806293 A BR888806293 A BR 888806293A BR 8806293 A BR8806293 A BR 8806293A BR 8806293 A BR8806293 A BR 8806293A
Authority
BR
Brazil
Prior art keywords
diorganopolysiloxanes
presenting
preparation
hydroxyl group
terminal units
Prior art date
Application number
BR888806293A
Other languages
English (en)
Inventor
Karl-Heinrich Wegehaupt
Karl Braunsperger
Guenter Von Au
Fridolin Stary
Original Assignee
Wacker Chemie Gmbh
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 Wacker Chemie Gmbh filed Critical Wacker Chemie Gmbh
Publication of BR8806293A publication Critical patent/BR8806293A/pt

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
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C08G77/16—Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxyl groups
    • 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
    • C08G77/32—Post-polymerisation treatment
    • C08G77/34—Purification

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)
BR888806293A 1987-12-11 1988-11-30 Processo para a preparacao de diorganopolissiloxanos apresentando nas unidades terminais cada uma,um grupo hidroxila si-ligado BR8806293A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873742068 DE3742068A1 (de) 1987-12-11 1987-12-11 Verfahren zur herstellung von in den endstaendigen einheiten je eine si-gebundene hydroxylgruppe aufweisenden diorganopolysiloxanen

Publications (1)

Publication Number Publication Date
BR8806293A true BR8806293A (pt) 1989-08-15

Family

ID=6342404

Family Applications (1)

Application Number Title Priority Date Filing Date
BR888806293A BR8806293A (pt) 1987-12-11 1988-11-30 Processo para a preparacao de diorganopolissiloxanos apresentando nas unidades terminais cada uma,um grupo hidroxila si-ligado

Country Status (7)

Country Link
US (1) US4902813A (pt)
EP (1) EP0319978A3 (pt)
JP (1) JPH01190732A (pt)
AU (1) AU613996B2 (pt)
BR (1) BR8806293A (pt)
CA (1) CA1288889C (pt)
DE (1) DE3742068A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0751582B2 (ja) * 1989-08-08 1995-06-05 信越化学工業株式会社 両末端にシラノール基を有する直鎖状オルガノテトラシロキサンの製造方法
JP2564018B2 (ja) * 1990-04-10 1996-12-18 株式会社トクヤマ ポリジアルキルシロキサンの製造方法
GB9103666D0 (en) * 1991-02-21 1991-04-10 Dow Corning Sa Method of making organopolysiloxanes
US5510441A (en) * 1993-07-15 1996-04-23 General Electric Company Process for producing octamethyltrisiloxane
US5457220A (en) * 1994-04-29 1995-10-10 General Electric Company Process for the production of crosslinked siloxanes by disproportionation
GB9727136D0 (en) * 1997-12-24 1998-02-25 Dow Corning Catalyst composition
US6040412A (en) * 1998-10-14 2000-03-21 Dow Corning S.A. Process for preparing chain-extended organopolysiloxanes
GB9827069D0 (en) 1998-12-09 1999-02-03 Dow Corning Polymerisation catalyst

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830967A (en) * 1953-01-13 1958-04-15 Wacker Chemie Gmbh Process for polymerizing polyorganosiloxanes with phosphorus-nitrogen compounds
US3160601A (en) * 1959-07-13 1964-12-08 Dow Corning Amine salts of phosphoric acid and amine salts of carboxylic acid as silanol condensation catalysts
DE1279019B (de) * 1967-01-04 1968-10-03 Wacker Chemie Gmbh Verfahren zur Herstellung von Organohalogensiliciumverbindungen
US3705205A (en) * 1969-02-25 1972-12-05 Dow Corning Hydroxylated copolymers composed of monomethylsiloxane units and diphenylsiloxane units
DE2229514C3 (de) * 1972-06-16 1979-01-04 Wacker-Chemie Gmbh, 8000 Muenchen Verfahren zur Förderung von Kondensations- und/oder Äquilibrierungsreaktionen von Organosiliciumverbindungen
US3902047A (en) * 1973-08-31 1975-08-26 Ferranti Packard Ltd Label reader with rotatable television scan
DE2538818C3 (de) * 1975-09-01 1980-04-30 Wacker-Chemie Gmbh, 8000 Muenchen Verfahren zur Förderung von Kondensations- und/oder Äquilibrierungsreaktionen von Organosiliciumverbindungen
DE3629381A1 (de) * 1986-08-29 1988-03-03 Wacker Chemie Gmbh Verfahren zur herstellung von lineareen organopolysiloxandiolen

Also Published As

Publication number Publication date
DE3742068A1 (de) 1989-06-22
AU613996B2 (en) 1991-08-15
EP0319978A2 (de) 1989-06-14
US4902813A (en) 1990-02-20
CA1288889C (en) 1991-09-10
JPH01190732A (ja) 1989-07-31
EP0319978A3 (de) 1990-11-07
AU2674388A (en) 1989-06-15

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