Patent ID: 6639033
Filing Date: 2003-10-28
Classification: C07D,C08F,C08K,C09K

Abstract:
A process for the free radical polymerization of one or more ethylenically unsaturated monomers, said process comprising polymerizing one or more ethylenically unsaturated monomers in the presence of one or more N-oxyl radicals of formula II,whereinX is S, NR5, O, SO or SO2, R5 is C1-C20-alkyl or C5-C8-cycloalkyl and R3 and R4 independently of one another, are C1-C4-alkyl, phenyl, naphthyl or an aromatic five-membered ring, or R3 and R4 together are â€”(CH2)oâ€” and p and o, independently â€ƒof one another, are an integer from 2 to 7.