EP 1289946 A1 20030312 - MULTIREACTIVITY POLYMERCAPTANS, STAR POLYMERS AND METHODS OF PREPARATION
Title (en)
MULTIREACTIVITY POLYMERCAPTANS, STAR POLYMERS AND METHODS OF PREPARATION
Title (de)
POLYMERCAPTANE MIT MULTIREAKTIVITÄT, STERNPOLYMERE UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
POLYMERCAPTANS A MULTIREACTIVITE, POLYMERES EN FORME D'ETOILES ET PROCEDES DE PREPARATION
Publication
Application
Priority
US 0015109 W 20000602
Abstract (en)
[origin: WO0196291A1] The present invention is directed to multireactivity polymercaptans, star-shaped copolymers and methods of preparing wherein the polymer comprises a polyvalent mercaptan core and three or more polymeric arms which extend radially from the core. The polyvalent mercaptan core comprises three or more thiol groups, wherein at least two of the thiol groups are of different reactivities, such that the core is of differential reactivity. These multifunctional thiols, which will be referred to as cores of differential reactivity, act as chain transfer agents in a free radical polymerization process.
IPC 1-7
IPC 8 full level
C07C 323/52 (2006.01); C08F 293/00 (2006.01); C09J 153/00 (2006.01)
CPC (source: EP)
C07C 323/52 (2013.01); C08F 293/00 (2013.01); C08F 293/005 (2013.01); C09J 153/00 (2013.01); C08L 2666/02 (2013.01)
Citation (search report)
See references of WO 0196291A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0196291 A1 20011220; AU 5456500 A 20011224; EP 1289946 A1 20030312
DOCDB simple family (application)
US 0015109 W 20000602; AU 5456500 A 20000602; EP 00939486 A 20000602