ES2007524A6 - Un metodo para producir polidiorganosiloxano sustancialmente libre de grupos hidroxilo. - Google Patents

Un metodo para producir polidiorganosiloxano sustancialmente libre de grupos hidroxilo.

Info

Publication number
ES2007524A6
ES2007524A6 ES8802138A ES8802138A ES2007524A6 ES 2007524 A6 ES2007524 A6 ES 2007524A6 ES 8802138 A ES8802138 A ES 8802138A ES 8802138 A ES8802138 A ES 8802138A ES 2007524 A6 ES2007524 A6 ES 2007524A6
Authority
ES
Spain
Prior art keywords
gum
lowered
hydroxyl content
silicone polymer
component
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
ES8802138A
Other languages
English (en)
Inventor
Nedeljko Vladi Gvozdic
Terrence Keith Hilty
John Carlton Saam
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
Publication of ES2007524A6 publication Critical patent/ES2007524A6/es
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
    • C08G77/04—Polysiloxanes
    • C08G77/32—Post-polymerisation treatment
    • 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

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)

Abstract

SE PUEDE REDUCIR EL CONTENIDO HIDROXILICO DE UNA GOMA DE POLIDIORGANOXILOXANO, DEL TIPO PRODUCIDO POR POLIMERIZACION DE ORGANOCICLOHEXANOS CATALIZADA CON METALES ALCALINOS, MEZCLANDO LA GOMA CON UN COMPONENTE FOSFORICO DE NATURALEZA ACIDA O PRODUCTOR DE ACIDO, DEJANDO QUE LA MEZCLA REACCIONE HASTA QUE SE REDUZCA EL CONTENIDO HIDROXILICO HASTA EL VALOR DESEADO, Y POSTERIORMENTE DESVOLATILIZANDO LA GOMA. EL CONTENIDO HIDROXILICO SE PUEDE REDUCIR SIN PRODUCIR UN CAMBIO CONSIDERABLE EN EL PESO MOLECULAR DE LA GOMA. EL CONTENIDO HIDROXILICO SE PUEDE REDUCIR SUSTANCIALMENTE A CERO.
ES8802138A 1987-07-10 1988-07-07 Un metodo para producir polidiorganosiloxano sustancialmente libre de grupos hidroxilo. Expired ES2007524A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/071,965 US4766191A (en) 1987-07-10 1987-07-10 Silicone polymer termination

Publications (1)

Publication Number Publication Date
ES2007524A6 true ES2007524A6 (es) 1989-06-16

Family

ID=22104708

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8802138A Expired ES2007524A6 (es) 1987-07-10 1988-07-07 Un metodo para producir polidiorganosiloxano sustancialmente libre de grupos hidroxilo.

Country Status (7)

Country Link
US (1) US4766191A (es)
EP (1) EP0299640B1 (es)
JP (1) JPH062816B2 (es)
AU (1) AU601859B2 (es)
CA (1) CA1305816C (es)
DE (1) DE3878763T2 (es)
ES (1) ES2007524A6 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5512650A (en) * 1986-06-20 1996-04-30 Minnesota Mining And Manufacturing Company Block copolymer, method of making the same, diamine precursors of the same, method of making such diamines and end products comprising the block copolymer
JPH0733505B2 (ja) * 1989-02-28 1995-04-12 信越化学工業株式会社 撥水処理剤
WO1994003405A1 (en) * 1991-04-12 1994-02-17 Allied-Signal Inc. Black glass ceramic from rapid pyrolysis in oxygen-containing atmospheres
WO1992021728A1 (en) * 1991-06-05 1992-12-10 Raychem Corporation Flame retarded gel compositions
JP3632736B2 (ja) * 1998-11-13 2005-03-23 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
CN101479343B (zh) * 2006-06-27 2011-08-31 Nok株式会社 硅氧烷橡胶组合物

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739952A (en) * 1953-06-24 1956-03-27 Gen Electric Organopolysiloxanes stabilized with organophosphorus compounds
US3153007A (en) * 1960-12-12 1964-10-13 Gen Electric Process for making organopolysiloxanes using bromoalkane decatalyzing agents for excess alkali-metal catalysts
US4341888A (en) * 1974-04-24 1982-07-27 General Electric Company Diorganopolysiloxane copolymers and process for the preparation thereof
US4020044A (en) * 1975-07-16 1977-04-26 Dow Corning Corporation Method of increasing the molecular weight of hydroxyl endblocked polydiorganosiloxanes
AU5900880A (en) * 1979-06-18 1981-01-08 General Electric Company Continuous manufacture of siloxane polymers
DE3139316A1 (de) * 1981-10-02 1983-04-21 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von polydiorganosiloxanen mit triorganosilylendgruppen
US4551515A (en) * 1984-02-27 1985-11-05 General Electric Company Process for the continuous manufacture of silicone gums
DE3524484A1 (de) * 1985-07-09 1987-01-15 Wacker Chemie Gmbh Verfahren zur herstellung von linearen organopolysiloxanen mit triorganosiloxygruppen als endstaendigen einheiten
US4683277A (en) * 1986-07-02 1987-07-28 Dow Corning Corporation Method for preparing vinyl terminated fluorine-containing polydiorganosiloxane

Also Published As

Publication number Publication date
DE3878763T2 (de) 1993-09-23
JPS6431834A (en) 1989-02-02
EP0299640A2 (en) 1989-01-18
AU1888888A (en) 1989-01-12
EP0299640B1 (en) 1993-03-03
JPH062816B2 (ja) 1994-01-12
DE3878763D1 (de) 1993-04-08
EP0299640A3 (en) 1989-11-23
CA1305816C (en) 1992-07-28
AU601859B2 (en) 1990-09-20
US4766191A (en) 1988-08-23

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