C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 211/94 (2006.01) C07D 401/04 (2006.01) C07D 401/14 (2006.01) C07D 471/10 (2006.01) C07D 487/22 (2006.01) C07D 491/107 (2006.01) C07D 491/113 (2006.01) C08F 4/00 (2006.01)
Patent
CA 2264460
The present invention relates to 1-alkoxy-polyalkyl-piperidine derivatives containing a structural element of formula (I) (see fig. I), wherein G1, G2, G3, G4 are independently C1-C6alkyl with the proviso that at least one is not methyl or G, and G2 or G3 and G4, or G1 and G2 and G3 and G4 together form a C5- C12cycloalkyl group; G5, G6 independently are H, C1-C18alkyl, phenyl, naphthyl or a group COOC1- C18alkyl and X represents a group such that the free radical X~ derived from X is capable of initiating polymerization of ethylenically unsaturated monomers, with the proviso that compounds A1 and A2 are excluded (see fig. II)~~(see fig. III) . Further subjects of the invention are a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) a 1-alkoxy-polyalkyl-piperidine derivative, a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-polyalkyl-piperidine derivatives for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator X~, as well as a process for polymerization are also subjects of the present invention.
Kramer Andreas
Nesvadba Peter
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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