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 silanolInfo
- 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
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.
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 |
---|---|
ES492521A0 ES492521A0 (es) | 1981-05-16 |
ES8105348A1 true ES8105348A1 (es) | 1981-05-16 |
Family
ID=21960282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES492521A Expired ES8105348A1 (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) | ES8105348A1 (es) |
FR (1) | FR2459258A1 (es) |
NL (1) | NL8003524A (es) |
Families Citing this family (37)
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 |
US4719276A (en) * | 1986-10-27 | 1988-01-12 | Dow Corning Corporation | Neutralization of catalyst in polymerization of polydiorganosiloxane |
CA1286442C (en) * | 1986-10-27 | 1991-07-16 | John Carlton Saam | Method of producing polydiorganosiloxane gum |
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 |
US4897459A (en) * | 1987-11-25 | 1990-01-30 | General Electric Company | Catalyst for producing fluorosilicone polymers |
US4977289A (en) * | 1987-11-25 | 1990-12-11 | 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 |
JP4047926B2 (ja) * | 1995-04-28 | 2008-02-13 | スリーエム カンパニー | ポリシロキサンを含む結合系を有する研磨製品 |
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 |
GB9818543D0 (en) * | 1998-08-26 | 1998-10-21 | Dow Corning | Continuous process for producing a silicone polymer |
GB9818541D0 (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 |
US20040176561A1 (en) * | 2002-12-31 | 2004-09-09 | Gelest, Inc. | Continuous cationic polymerization of siloxanes |
WO2006106361A1 (en) | 2005-04-06 | 2006-10-12 | Dow Corning Corporation | 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 |
KR101696949B1 (ko) | 2009-05-13 | 2017-01-16 | 다우 코닝 코포레이션 | 실록산의 중합 및 유화를 위한 연속공정 |
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 |
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 |
Family Cites Families (8)
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 |
-
1979
- 1979-06-03 AU AU59008/80A patent/AU5900880A/en not_active Abandoned
- 1979-06-18 US US06/049,524 patent/US4250290A/en not_active Expired - Lifetime
-
1980
- 1980-06-13 DE DE19803022155 patent/DE3022155A1/de not_active Withdrawn
- 1980-06-13 AR AR281401A patent/AR224774A1/es active
- 1980-06-17 FR FR8013415A patent/FR2459258A1/fr active Granted
- 1980-06-17 JP JP8099480A patent/JPS5611927A/ja active Granted
- 1980-06-17 BE BE0/201061A patent/BE883860A/fr not_active IP Right Cessation
- 1980-06-17 ES ES492521A patent/ES8105348A1/es not_active Expired
- 1980-06-17 BR BR8003801A patent/BR8003801A/pt unknown
- 1980-06-18 NL NL8003524A patent/NL8003524A/nl not_active Application Discontinuation
- 1980-06-18 KR KR1019800002401A patent/KR840001490B1/ko active
Also Published As
Publication number | Publication date |
---|---|
FR2459258B1 (es) | 1984-05-11 |
AU5900880A (en) | 1981-01-08 |
DE3022155A1 (de) | 1981-01-08 |
ES492521A0 (es) | 1981-05-16 |
JPS6249890B2 (es) | 1987-10-21 |
KR830002835A (ko) | 1983-05-30 |
JPS5611927A (en) | 1981-02-05 |
KR840001490B1 (ko) | 1984-09-28 |
BE883860A (fr) | 1980-10-16 |
BR8003801A (pt) | 1981-01-13 |
FR2459258A1 (fr) | 1981-01-09 |
AR224774A1 (es) | 1982-01-15 |
US4250290A (en) | 1981-02-10 |
NL8003524A (nl) | 1980-12-22 |
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