MXPA02002458A - Metodo para controlar distribuciones de peso molecular durante un proceso de polimerizacion. - Google Patents

Metodo para controlar distribuciones de peso molecular durante un proceso de polimerizacion.

Info

Publication number
MXPA02002458A
MXPA02002458A MXPA02002458A MXPA02002458A MXPA02002458A MX PA02002458 A MXPA02002458 A MX PA02002458A MX PA02002458 A MXPA02002458 A MX PA02002458A MX PA02002458 A MXPA02002458 A MX PA02002458A MX PA02002458 A MXPA02002458 A MX PA02002458A
Authority
MX
Mexico
Prior art keywords
initiator
molecular weight
polymerization process
weight distributions
controlling molecular
Prior art date
Application number
MXPA02002458A
Other languages
English (en)
Inventor
M Sosa Jose
Original Assignee
Fina Technology
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 Fina Technology filed Critical Fina Technology
Publication of MXPA02002458A publication Critical patent/MXPA02002458A/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/006—Removal of residual monomers by chemical reaction, e.g. scavenging

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerization Catalysts (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Polyamides (AREA)

Abstract

La presente invencion se proporciona para superar las deficiencias de la tecnica anterior, la cual proporciona un metodo para producir un polimero. El metodo incluye tomar una corriente de producto de un sistema de polimerizacion aromatica de monovinilo, en donde la corriente de producto comprende un monomero polimerizado y un monomero. La corriente de producto es introducida en un intercambiador de calor de flujo ascendente en la presencia de un iniciador, tal como un peroxido, el cual afecta una polimerizacion del monomero en el intercambiador de calor de flujo ascendente a El iniciador puede incluir un iniciador de temperatura baja y un iniciador de temperatura alta, en donde la proporcion del iniciador de temperatura alta al iniciador de temperatura baja puede fluctuar desde aproximadamente 0:600 hasta aproximadamente 50:600.
MXPA02002458A 2001-03-09 2002-03-06 Metodo para controlar distribuciones de peso molecular durante un proceso de polimerizacion. MXPA02002458A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/803,598 US6486271B1 (en) 2001-03-09 2001-03-09 Method of controlling molecular weight distributions during a polymerization process

Publications (1)

Publication Number Publication Date
MXPA02002458A true MXPA02002458A (es) 2004-06-22

Family

ID=25186966

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA02002458A MXPA02002458A (es) 2001-03-09 2002-03-06 Metodo para controlar distribuciones de peso molecular durante un proceso de polimerizacion.

Country Status (11)

Country Link
US (1) US6486271B1 (es)
EP (1) EP1238991B1 (es)
JP (2) JP2002265503A (es)
KR (1) KR100875725B1 (es)
CN (1) CN1232540C (es)
AT (1) ATE340808T1 (es)
BR (1) BR0200686A (es)
DE (1) DE60214918T2 (es)
ES (1) ES2272634T3 (es)
MX (1) MXPA02002458A (es)
TW (1) TW583194B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6608150B1 (en) * 2002-10-08 2003-08-19 Atofina Chemicals, Inc. Preparation of expandable styrene polymers
US20050256216A1 (en) * 2004-05-14 2005-11-17 Berti Douglas A Production of polystyrene for foaming applications using a combination of peroxide initiators
US7754817B2 (en) * 2005-10-31 2010-07-13 Fina Technology, Inc. Low temperature initiators for improving the rubber phase volume of HIPS formulations
US8403925B2 (en) 2006-12-06 2013-03-26 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for assessing lesions in tissue
US9492226B2 (en) 2005-12-06 2016-11-15 St. Jude Medical, Atrial Fibrillation Division, Inc. Graphical user interface for real-time RF lesion depth display
KR100982821B1 (ko) * 2006-08-21 2010-09-16 주식회사 엘지화학 열안정성이 우수한 그라프트 고무 라텍스의 제조방법 및이의 응집방법
US9204927B2 (en) 2009-05-13 2015-12-08 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for presenting information representative of lesion formation in tissue during an ablation procedure
US7858729B2 (en) * 2008-05-29 2010-12-28 Novomer, Inc. Methods of controlling molecular weight distribution of polymers and compositions thereof
CN102746424A (zh) * 2011-04-20 2012-10-24 南京华狮化工有限公司 一种自由基聚合引发剂组合物及其应用

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE786885A (fr) * 1971-07-30 1973-01-29 Basf Ag Procede d'elimination des constituants vaporisables de solutions polymeres
US4125696A (en) * 1977-01-06 1978-11-14 Pennwalt Corporation Polymerization process using di-t-butyl diperoxycarbonate as a finishing catalyst
JPS5918707A (ja) * 1982-07-24 1984-01-31 Mitsui Toatsu Chem Inc 脱揮発重合体の製造方法
US4777210A (en) 1986-07-25 1988-10-11 Cosden Technology, Inc. Continuous production of high impact polystyrene
US5274029A (en) * 1990-09-10 1993-12-28 Kelley Joseph M Styrene polymerization process
JPH06345810A (ja) * 1993-06-10 1994-12-20 Idemitsu Petrochem Co Ltd スチレン系重合体からの揮発性物質の除去方法
US5540813A (en) * 1994-01-19 1996-07-30 Fina Technology, Inc. Method for reducing volatiles in polymerized styrene
US6353066B1 (en) * 2001-02-09 2002-03-05 Fina Technology, Inc. Method for producing copolymers in the presence of a chain transfer agent

Also Published As

Publication number Publication date
JP2008179828A (ja) 2008-08-07
JP2002265503A (ja) 2002-09-18
ES2272634T3 (es) 2007-05-01
CN1374326A (zh) 2002-10-16
EP1238991A3 (en) 2003-10-29
JP4987763B2 (ja) 2012-07-25
EP1238991A2 (en) 2002-09-11
BR0200686A (pt) 2002-12-03
ATE340808T1 (de) 2006-10-15
US6486271B1 (en) 2002-11-26
EP1238991B1 (en) 2006-09-27
TW583194B (en) 2004-04-11
KR100875725B1 (ko) 2008-12-26
DE60214918D1 (de) 2006-11-09
DE60214918T2 (de) 2007-06-06
CN1232540C (zh) 2005-12-21
KR20020072194A (ko) 2002-09-14

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