DE69127344D1 - Katalysierte Äquilibrierung von Polyorganosiloxanen und Verfahren zur Herstellung von Cyclosiloxanen - Google Patents

Katalysierte Äquilibrierung von Polyorganosiloxanen und Verfahren zur Herstellung von Cyclosiloxanen

Info

Publication number
DE69127344D1
DE69127344D1 DE69127344T DE69127344T DE69127344D1 DE 69127344 D1 DE69127344 D1 DE 69127344D1 DE 69127344 T DE69127344 T DE 69127344T DE 69127344 T DE69127344 T DE 69127344T DE 69127344 D1 DE69127344 D1 DE 69127344D1
Authority
DE
Germany
Prior art keywords
cyclosiloxanes
polyorganosiloxanes
preparation
catalyzed equilibration
equilibration
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 - Fee Related
Application number
DE69127344T
Other languages
English (en)
Other versions
DE69127344T2 (de
Inventor
Jodi Ann Bourgoin
Steven Kerry Freeburne
Roland Lee Halm
Brian Michael Naasz
David Scott Niswonger
Dennis Gene Vankoevering
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.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
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 Dow Corning Corp filed Critical Dow Corning Corp
Application granted granted Critical
Publication of DE69127344D1 publication Critical patent/DE69127344D1/de
Publication of DE69127344T2 publication Critical patent/DE69127344T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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 Table
    • C07F7/02—Silicon compounds
    • C07F7/21—Cyclic compounds having at least one ring containing silicon, but no carbon in the ring
    • 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 Table
    • 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
    • C07F7/0872—Preparation and treatment thereof
    • C07F7/0874—Reactions involving a bond of the Si-O-Si linkage
    • 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
    • C08G77/06—Preparatory processes
    • C08G77/10—Equilibration processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Silicon Polymers (AREA)
DE69127344T 1990-11-09 1991-11-08 Katalysierte Äquilibrierung von Polyorganosiloxanen und Verfahren zur Herstellung von Cyclosiloxanen Expired - Fee Related DE69127344T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/611,216 US5068383A (en) 1990-11-09 1990-11-09 Catalyzed redistribution of polyorganosiloxanes

Publications (2)

Publication Number Publication Date
DE69127344D1 true DE69127344D1 (de) 1997-09-25
DE69127344T2 DE69127344T2 (de) 1998-01-08

Family

ID=24448096

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127344T Expired - Fee Related DE69127344T2 (de) 1990-11-09 1991-11-08 Katalysierte Äquilibrierung von Polyorganosiloxanen und Verfahren zur Herstellung von Cyclosiloxanen

Country Status (5)

Country Link
US (1) US5068383A (de)
EP (1) EP0484959B1 (de)
JP (1) JP3222511B2 (de)
CA (1) CA2054357C (de)
DE (1) DE69127344T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5196559A (en) * 1992-01-23 1993-03-23 Dow Corning Corporation Equilibration of cyclic siloxanes with novel catalysts
US5247116A (en) * 1992-07-10 1993-09-21 Temple University Of The Commonwealth System Of Higher Education Acid-catalyzed process for the production of cyclosiloxanes
US5239101A (en) * 1992-12-21 1993-08-24 Dow Corning Corporation Anhydrous process for preparation of polyorganosiloxanes
US5233070A (en) * 1992-12-23 1993-08-03 Dow Corning Corporation Process for converting chlorine end-terminated polyorganosiloxanes to polyorganocyclosiloxanes
RU2179550C2 (ru) 1995-06-07 2002-02-20 Новус Интернэшнл, Инк. Способ получения 2-гидрокси-4-метилтиомасляной кислоты или ее солей
US5856567A (en) 1995-06-07 1999-01-05 Novus International, Inc. Continuous hydrolysis process for preparing 2-hydroxy-4-methylthiobutanioc acid or salts thereof
DE19654556A1 (de) 1996-12-27 1998-07-02 Wacker Chemie Gmbh Harnstoffgruppen aufweisende Organosiliciumverbindungen, deren Herstellung sowie deren Verwendung
US6180811B1 (en) * 1998-12-22 2001-01-30 Dow Corning Corporation Reducing low molecular weight cyclic organosiloxanes in a recirculating process stream
US6316655B1 (en) 2001-02-20 2001-11-13 Dow Corning Corporation Method of making hydroxy end-terminated linear siloxanes
FR2850660B1 (fr) * 2003-02-05 2006-08-04 Rhodia Chimie Sa Procede de preparation des resines polymethylvinylsiloxanes avec recyclage des oligoorgano siloxanes volatils
US7368589B2 (en) * 2003-10-31 2008-05-06 Johnson & Johnson Vision Care, Inc. Purification of silicone containing compounds by supercritical fluid extraction
WO2006051663A1 (ja) * 2004-11-09 2006-05-18 Sumitomo Bakelite Company Limited 分解反応装置、再生樹脂組成物原料製造システム、再生樹脂組成物原料製造方法、再生樹脂組成物原料、および成形体
KR20080008360A (ko) * 2005-05-16 2008-01-23 다우 코닝 코포레이션 폴리오가노실록산의 재분배방법
DE102012212007A1 (de) * 2012-07-10 2014-01-16 Wacker Chemie Ag Verfahren zur Herstellung von Organopolysiloxanen
PL404691A1 (pl) 2013-07-15 2015-01-19 Dow Corning Corporation Telomeryzacja cyklicznych poliorganosiloksanów

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421653A (en) * 1944-07-01 1947-06-03 Gen Electric Preparation of polyorganohalogenopolysiloxanes
US2911427A (en) * 1957-12-11 1959-11-03 Dow Corning Chlorosiloxanes
US3169942A (en) * 1959-12-08 1965-02-16 Union Carbide Corp Zeolite catalyzed condensation of hydroxyl and/or alkoxy containing silicon compositions
US3065252A (en) * 1960-12-06 1962-11-20 Dow Corning Catalytic preparation of chlorosiloxanes
US3101361A (en) * 1961-01-05 1963-08-20 Dow Corning Catalytic preparation of chlorosiloxanes in polar solvents
US3162662A (en) * 1961-04-19 1964-12-22 Dow Corning Preparation of linear chlorosiloxanes from cyclotrisiloxanes
US3398177A (en) * 1965-05-10 1968-08-20 Dow Corning Redistribution of sih bonds
DE1279019B (de) * 1967-01-04 1968-10-03 Wacker Chemie Gmbh Verfahren zur Herstellung von Organohalogensiliciumverbindungen
US3642851A (en) * 1968-12-27 1972-02-15 Union Carbide Corp Preparation of linear halosiloxanes and compounds derived therefrom
BE759495A (fr) * 1969-11-27 1971-05-26 Rhone Poulenc Sa Preparation de siloxanes par redistribution
DE2030936C3 (de) * 1970-06-23 1974-03-21 Wacker-Chemie Gmbh, 8000 Muenchen Verfahren zur Herstellung von Organopolysiloxanölen
US3853934A (en) * 1974-01-14 1974-12-10 Gen Electric Continuous process for producing polysiloxane oils
DE2453482B2 (de) * 1974-11-12 1980-04-30 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von endständig chlorsubstituierten, linearen oder verzweigten Organosiloxanen
DE2630744C3 (de) * 1976-07-08 1979-05-23 Wacker-Chemie Gmbh, 8000 Muenchen Verfahren zur Umwandlung von Organosiloxanen
US4329483A (en) * 1981-07-10 1982-05-11 Dow Corning Corporation Preparation of cyclotetrasiloxanes aliphatic chlorides and acyl chlorides
US4329482A (en) * 1981-07-10 1982-05-11 Dow Corning Corporation Preparation of mixed cyclotetrasiloxanes and aliphatic chlorides and/or acyl chlorides
US4831174A (en) * 1987-12-31 1989-05-16 Dow Corning Corporation Production of polydiorganosiloxane fluids with low silanol content
US4895967A (en) * 1988-09-26 1990-01-23 General Electric Company Method for making cyclic poly(siloxane)s

Also Published As

Publication number Publication date
EP0484959A3 (en) 1992-10-28
EP0484959A2 (de) 1992-05-13
JPH04332733A (ja) 1992-11-19
CA2054357C (en) 2001-05-01
DE69127344T2 (de) 1998-01-08
CA2054357A1 (en) 1992-05-10
JP3222511B2 (ja) 2001-10-29
EP0484959B1 (de) 1997-08-20
US5068383A (en) 1991-11-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: KROHER, STROBEL RECHTS- UND PATENTANWAELTE, 80336

8339 Ceased/non-payment of the annual fee