Global Patent Index - EP 0842198 A1

EP 0842198 A1 19980520 - METHOD FOR PREPARING TELECHELIC 1,3-DIENE OLIGOMERS BY THE CONTROLLED FREE RADICAL POLYMERIZATION OF 1,3-DIENES IN PRESENCE OF A STABLE FREE RADICAL

Title (en)

METHOD FOR PREPARING TELECHELIC 1,3-DIENE OLIGOMERS BY THE CONTROLLED FREE RADICAL POLYMERIZATION OF 1,3-DIENES IN PRESENCE OF A STABLE FREE RADICAL

Title (de)

VERFAHREN ZUR HERSTELLUNG VON TELECHELISCHEN 1,3-DIENOLIGOMEREN DURCH KONTROLLIERTE FREIE RADIKALISCHE POLYMERISATION VON 1,3-DIENEN IN GEGENWART EINES STABILEN FREIEN RADIKALS

Title (fr)

PROCEDE DE PREPARATION D'OLIGOMERES DE 1,3-DIENE TELECHELIQUES PAR POLYMERISATION RADICALAIRE CONTROLEE DE 1,3-DIENES EN PRESENCE D'UN RADICAL LIBRE STABLE

Publication

EP 0842198 A1 19980520 (FR)

Application

EP 97926089 A 19970603

Priority

  • FR 9700973 W 19970603
  • FR 9606875 A 19960604

Abstract (en)

[origin: WO9746593A1] The invention features a method for preparing telechelic 1,3-diene oligomers that consists in effecting the free radical polymerization of at least one 1,3-diene with a heat sensitive polymerization initiator such as hydrogen peroxide in the presence of a stable nitroxide radical. The invention also features as new products the said telechelic 1,3-diene oligomers and their use for obtaining di- or multi-blocks.

IPC 1-7

C08F 4/28; C08F 2/38; C08F 136/04

IPC 8 full level

C08F 2/38 (2006.01); C08F 4/00 (2006.01); C08F 4/28 (2006.01); C08F 36/04 (2006.01); C08F 136/04 (2006.01); C08F 293/00 (2006.01); C08G 18/69 (2006.01)

CPC (source: EP KR)

C08F 2/38 (2013.01 - KR); C08F 4/28 (2013.01 - KR); C08F 136/04 (2013.01 - EP KR); C08F 293/00 (2013.01 - EP KR); C08G 18/69 (2013.01 - EP KR)

Citation (search report)

See references of WO 9746593A1

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

WO 9746593 A1 19971211; AU 3098297 A 19980105; BR 9702291 A 19990720; CA 2229978 A1 19971211; CN 1198750 A 19981111; EP 0842198 A1 19980520; JP H11511202 A 19990928; KR 19990036179 A 19990525

DOCDB simple family (application)

FR 9700973 W 19970603; AU 3098297 A 19970603; BR 9702291 A 19970603; CA 2229978 A 19970603; CN 97191040 A 19970603; EP 97926089 A 19970603; JP 50027198 A 19970603; KR 19980700847 A 19980204