C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/59 (2006.01) C07C 239/22 (2006.01) C07D 209/44 (2006.01) C07D 211/94 (2006.01) C07D 233/32 (2006.01) C07D 241/08 (2006.01) C07D 295/24 (2006.01) C07D 401/14 (2006.01) C07D 487/10 (2006.01) C08F 4/00 (2006.01) C08F 8/50 (2006.01)
Patent
CA 2406255
The invention relates to novel cyclic and open-chain hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer. The invention also relates to use as polymerization initiators and to the use of known hydroxylamine esters selected from the group consisting of HALS compounds and the novel hydroxylamine esters for the controlled degradation of polypropylene and for achieving a controlled increase in the molecular weight of polyethylene.
L'invention concerne de nouveaux esters d'hydroxylamine cycliques et à chaîne ouverte et des compositions polymérisables comprenant ces esters d'hydroxylamine et un monomère ou un oligomère non saturé en éthylène. L'invention concerne également leur utilisation en tant qu'initiateurs de polymerisation et l'utilisation d'esters d'hydroxylamine connus sélectionnés dans le groupe formé de composés HALS et des nouveaux esters d'hydroxylamine pour la dégradation contrôlée du polypropylène et pour une augmentation contrôlée du poids moléculaire du polyéthylène.
Nesvadba Peter
Pfaendner Rudolf
Roth Michael
Zink Marie-Odile
Ciba Specialty Chemicals Holding Inc.
Ciba-Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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