ES8105348A1 - Un procedimiento para la polimerizacion continua de polime- ros de diorganopolisiloxano terminados en silanol - Google Patents

Un procedimiento para la polimerizacion continua de polime- ros de diorganopolisiloxano terminados en silanol

Info

Publication number
ES8105348A1
ES8105348A1 ES492521A ES492521A ES8105348A1 ES 8105348 A1 ES8105348 A1 ES 8105348A1 ES 492521 A ES492521 A ES 492521A ES 492521 A ES492521 A ES 492521A ES 8105348 A1 ES8105348 A1 ES 8105348A1
Authority
ES
Spain
Prior art keywords
continuous manufacture
static mixer
siloxane polymers
chainstopper
triorganosiloxy
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
ES492521A
Other languages
English (en)
Other versions
ES492521A0 (es
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 ES8105348A1 publication Critical patent/ES8105348A1/es
Publication of ES492521A0 publication Critical patent/ES492521A0/es
Granted 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

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

PROCEDIMIENTO DE POLIMERIZACION CONTINUA DE POLIMEROS DE DIORGANO POLISILOXANO. CONSTA DE LAS SIGUIENTES OPERACIONES: 1. SOMETA A REACCION DE POLIMERIZACION CICLOPOLISILOXANOS PREVIAMENTE DESGARIFICADOS, PRECALENTADOS Y COMBINADOS CON UN CATALIZADOR BASICO EN UN MEZCLADOR ESTATICO MANTENIDO A PRESION, INTRODUCIENDOSE EN LA PARTE INICIAL DE LA ZONA LA REACCION DEL MEZCLADOR UN INTERUPTOR DE CADENA. 2. COMBINAR EN EL MEZCLADOR DE REACCION LA MASA DE REACCION CON UN AGENTE NEUTRALIZANTE. 3. LA SOLUCION SE PASA A TRAVES DE UN MEZCLADOR PARA COMPLETAR LA NEUTRALIZACION. COMO CATALIZADOR BASICO SE EMPLEA HIDROXIDO DE CESIO, HIDROXIDO POTASICO, SODICO, SILANOLAFO DE CESIO, SILANOLATO POTASICO Y SODICO. LA PRESION EN LA ZONA DE REACCION ES DE 170 PSIG COMO MINIMO; LA TEMPERATURA OSCILA DE 160 A 200GC.
ES492521A 1979-06-18 1980-06-17 Un procedimiento para la polimerizacion continua de polime- ros de diorganopolisiloxano terminados en silanol Granted ES492521A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/049,524 US4250290A (en) 1979-06-18 1979-06-18 Process for the continuous manufacture of siloxane polymers

Publications (2)

Publication Number Publication Date
ES8105348A1 true ES8105348A1 (es) 1981-05-16
ES492521A0 ES492521A0 (es) 1981-05-16

Family

ID=21960282

Family Applications (1)

Application Number Title Priority Date Filing Date
ES492521A Granted ES492521A0 (es) 1979-06-18 1980-06-17 Un procedimiento para la polimerizacion continua de polime- ros de diorganopolisiloxano terminados en silanol

Country Status (11)

Country Link
US (1) US4250290A (es)
JP (1) JPS5611927A (es)
KR (1) KR840001490B1 (es)
AR (1) AR224774A1 (es)
AU (1) AU5900880A (es)
BE (1) BE883860A (es)
BR (1) BR8003801A (es)
DE (1) DE3022155A1 (es)
ES (1) ES492521A0 (es)
FR (1) FR2459258A1 (es)
NL (1) NL8003524A (es)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356116A (en) * 1981-04-03 1982-10-26 General Electric Company Devolatilized room temperature vulcanizable silicone rubber composition
US4450282A (en) * 1981-07-29 1984-05-22 General Electric Company Catalyst for a process for producing silicones
US4513115A (en) * 1982-02-17 1985-04-23 General Electric Company Low modulus one component RTV compositions processes
US4551515A (en) * 1984-02-27 1985-11-05 General Electric Company Process for the continuous manufacture of silicone gums
DE3519411A1 (de) * 1985-05-30 1986-12-04 Wacker-Chemie GmbH, 8000 München Kontinuierliches verfahren zur aenderung des molekulargewichts von organosiliciumverbindungen
CA1286442C (en) * 1986-10-27 1991-07-16 John Carlton Saam Method of producing polydiorganosiloxane gum
US4719276A (en) * 1986-10-27 1988-01-12 Dow Corning Corporation Neutralization of catalyst in polymerization of polydiorganosiloxane
US4766192A (en) * 1987-07-10 1988-08-23 Dow Corning Corporation Silicone polymer termination
US4766191A (en) * 1987-07-10 1988-08-23 Dow Corning Corporation Silicone polymer termination
US4977289A (en) * 1987-11-25 1990-12-11 General Electric Company Catalyst for producing fluorosilicone polymers
US4897459A (en) * 1987-11-25 1990-01-30 General Electric Company Catalyst for producing fluorosilicone polymers
DE3914912A1 (de) * 1989-05-05 1990-11-08 Wacker Chemie Gmbh Verfahren zur kontinuierlichen herstellung von hochmolekularen organosiliciumverbindungen
US5173558A (en) * 1991-05-20 1992-12-22 Dow Corning Corporation Base catalyzed preparation of polyorganosiloxanes with controlled low levels of hydroxy substitution
IL107810A0 (en) * 1992-12-17 1994-02-27 Exxon Chemical Patents Inc Functionalized polymers and processes for the preparation thereof
US5475067A (en) * 1993-09-16 1995-12-12 Exxon Chemical Patents Inc. Process for polyolefin production using short residence time reactors
AU694338B2 (en) * 1995-04-28 1998-07-16 Minnesota Mining And Manufacturing Company Abrasive article having a bond system comprising a polysiloxane
KR100440224B1 (ko) * 1995-12-29 2004-12-08 고려화학 주식회사 양말단수신기를함유하는폴리다이메틸실록산의제조방법
CN1113923C (zh) * 1996-09-12 2003-07-09 化学工业部晨光化工研究院(成都) 硅橡胶生胶的连续生产方法
US5847180A (en) * 1997-12-15 1998-12-08 Dow Corning Corporation Neutralization method for polyorganosiloxanes
GB9818541D0 (en) * 1998-08-26 1998-10-21 Dow Corning Continuous process for producing a silicone polymer
GB9818543D0 (en) * 1998-08-26 1998-10-21 Dow Corning Continuous process for producing a silicone polymer
JP4488582B2 (ja) * 2000-04-13 2010-06-23 東レ・ダウコーニング株式会社 連続的ヒドロシリル化反応方法、変性された液状有機珪素化合物の連続的製造方法および連続的ヒドロシリル化反応装置
GB0018162D0 (en) * 2000-07-26 2000-09-13 Dow Corning Sa Polymerisation reactor and process
AU2003300035A1 (en) * 2002-12-31 2004-07-29 Gelest, Inc. Continuous cationic polymerization of sil0xanes
US7754800B2 (en) 2005-04-06 2010-07-13 Dow Corning Europe Sa Organosiloxane compositions
JP5207627B2 (ja) * 2006-12-27 2013-06-12 東レ・ダウコーニング株式会社 オルガノポリシロキサンの熱安定性を改善する方法およびオルガノポリシロキサン混合物
DE102007020568A1 (de) * 2007-05-02 2008-11-06 Wacker Chemie Ag Verfahren zur kontinuierlichen Herstellung von Aminoalkylgruppen aufweisenden Organopolysiloxanen
DE102007036069A1 (de) * 2007-08-01 2009-02-05 Wacker Chemie Ag Mehrstufiges Verfahren zur Herstellung von Aminoalkylgruppen aufweisenden Organopolysiloxanen
US20090242384A1 (en) * 2008-03-27 2009-10-01 Curcio Robert A Low Pressure Mixing System for Desalting Hydrocarbons
CN101333293B (zh) * 2008-07-30 2011-06-29 浙江大学城市学院 羟基聚硅氧烷连续化制备系统
GB0905205D0 (en) 2009-03-26 2009-05-13 Dow Corning Preparation of organosiloxane polymer
GB0905204D0 (en) 2009-03-26 2009-05-13 Dow Corning Preparation of organosiloxane polymers
EP2430077B1 (en) 2009-05-13 2018-09-12 Dow Silicones Corporation Continuous process for polymerization and emulsification of siloxane
CN103554499A (zh) * 2013-09-29 2014-02-05 安徽同丰橡塑工业有限公司 一种热硫化硅橡胶生胶的生产工艺
CN103665381B (zh) * 2013-12-27 2017-01-18 蓝星化工新材料股份有限公司江西星火有机硅厂 一种羟基封端聚二甲基硅氧烷的合成方法
CN110551286A (zh) * 2019-09-30 2019-12-10 唐山三友硅业有限责任公司 聚二甲基硅氧烷的连续制备工艺
CN119137190A (zh) 2022-05-09 2024-12-13 美国陶氏有机硅公司 硅氧烷聚合物的聚合
CN115521461B (zh) * 2022-09-09 2023-11-24 湖北兴瑞硅材料有限公司 一种低粘度乙烯基硅油连续化生产工艺
CN117205858B (zh) * 2023-10-24 2025-08-29 亚培烯科技(上海)有限公司 一种连续生产装置及硅氢加成反应的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2883272A (en) * 1955-09-13 1959-04-21 Gen Electric Apparatus for the continuous polymerization of organopolysiloxanes
US3382205A (en) * 1963-09-27 1968-05-07 Gen Electric Compositions containing silanol chainstopped polydimethyl-siloxane, organosilicon proess aid, and curing agent
US3779987A (en) * 1972-10-12 1973-12-18 Gen Electric Process for producing diorganopolysiloxane polymers
US3903047A (en) * 1973-10-23 1975-09-02 Gen Electric Process for the production of silanol-stopped diorgano-polysiloxanes
US3978104A (en) * 1974-04-24 1976-08-31 General Electric Company Process for producing diorganopolysiloxane oils
GB1549344A (en) * 1975-05-19 1979-08-08 Gen Electric Process for producing silanol end-stopped diorganopolysiloxane oils
US4096160A (en) * 1976-04-21 1978-06-20 General Electric Company Continuous devolatilization of silanol-terminated silicone polymer
DE2705563C2 (de) * 1977-02-10 1982-10-14 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen Herstellung von hochviskosen Polydiorganosiloxanen

Also Published As

Publication number Publication date
BR8003801A (pt) 1981-01-13
KR830002835A (ko) 1983-05-30
KR840001490B1 (ko) 1984-09-28
DE3022155A1 (de) 1981-01-08
NL8003524A (nl) 1980-12-22
US4250290A (en) 1981-02-10
BE883860A (fr) 1980-10-16
FR2459258B1 (es) 1984-05-11
FR2459258A1 (fr) 1981-01-09
JPS5611927A (en) 1981-02-05
AU5900880A (en) 1981-01-08
ES492521A0 (es) 1981-05-16
AR224774A1 (es) 1982-01-15
JPS6249890B2 (es) 1987-10-21

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