Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Nitrogen-containing reactant
Reexamination Certificate
2003-09-16
2008-05-06
Truong, Duc (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Nitrogen-containing reactant
C528S424000, C528S425000, C528S486000, C528S490000, C528S492000, C528S503000, C524S099000, C252S397000
Reexamination Certificate
active
07368525
ABSTRACT:
The instant invention pertains to polymeric alkoxyamines, which are prepared by atom transfer radical addition polymerization (ATRA). Further aspects of the invention are a process for their preparation and their use as light stabilizers, flame retardants and polymerization regulators/initiators in controlled radical polymerization processes. Yet another aspect of the invention are novel monomeric intermediate alkoxyamines, which are also useful as polymerization regulators/initiators.
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Pastor et al; Transition metal catalyzed—alkoxyamines and compositions, 2002, Ciba Speciality Chemicals holding Inc., Switz., Chem abstract 137: 295596.
Couturier et al; Method for preparing alkoxyamines from nitroxides; 2002, Atofina, France., Chem abstract 136;169419.
Couturier et al; Method for preparing alkoxyamines from nitroxides; 2000; Elf Atochem S. A., Fr., Chem abstract 133:309685.
Bugnon Lucienne
Nesvadba Peter
Ciba Specialty Chemicals Corp.
Stevenson Tyler A.
Truong Duc
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