Global Patent Index - EP 1525235 A1

EP 1525235 A1 20050427 - MICROSTRUCTURE CHAIN TRANSFER AGENTS FOR ANIONIC POLYMERIZATION

Title (en)

MICROSTRUCTURE CHAIN TRANSFER AGENTS FOR ANIONIC POLYMERIZATION

Title (de)

MIKROSTRUKTURREGLER FÜR DIE ANONISCHE POLYMERISATION

Title (fr)

REGULATEUR DE MICROSTRUCTURES POUR LA POLYMERISATION ANIONIQUE

Publication

EP 1525235 A1 20050427 (DE)

Application

EP 02787664 A 20021113

Priority

  • DE 10233988 A 20020725
  • DE 10243618 A 20020919
  • EP 0212689 W 20021113

Abstract (en)

[origin: WO2004014966A1] The invention relates to a method for producing optionally coupled, non-blocked polymers based on conjugated dienes or optionally coupled, non-blocked copolymers based on conjugated dienes and vinyl aromatic compounds by anionic polymerization in an inert organic solvent in the presence of a lithium organic compound as initiator and a microstructure chain transfer agent and/or randomizer, certain ether compounds being used as the microstructure chain transfer agent and/or randomizer. The polymers produced in this manner are particularly suitable for producing damping materials, tires and tire components (e.g. tire treads or side walls) and commercial rubber products.

IPC 1-7

C08F 36/04; C08F 4/48; C07C 217/08; C07D 317/22; C07D 307/12

IPC 8 full level

C07D 307/12 (2006.01); C07D 317/22 (2006.01); C07D 319/06 (2006.01); C08F 4/48 (2006.01); C08F 36/04 (2006.01)

CPC (source: EP)

C07D 307/12 (2013.01); C07D 317/22 (2013.01); C07D 319/06 (2013.01); C08F 36/04 (2013.01)

Citation (search report)

See references of WO 2004014966A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

DOCDB simple family (publication)

WO 2004014966 A1 20040219; AU 2002351991 A1 20040225; EP 1525235 A1 20050427

DOCDB simple family (application)

EP 0212689 W 20021113; AU 2002351991 A 20021113; EP 02787664 A 20021113