C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
402/187, 402/2,
C08G 73/06 (2006.01) C08G 18/32 (2006.01) C08G 63/685 (2006.01) C08G 69/26 (2006.01) C08G 71/02 (2006.01) C08G 77/54 (2006.01) C08G 85/00 (2006.01) C08L 79/04 (2006.01) C08L 101/00 (2006.01)
Patent
CA 1126446
Abstract of the Disclosure Condensation polymers or addition polymers which contain sterically hindered polyalkylpiperidine groups are proposed as light stabilizers for plastics. The polymers concerned are relatively low-molecular polymers and a difunctional derivative of a polyalkylpiperidine is additionally used for the manufacture of these. The piperidine radical can be present in the main chain or as a side group of the polymeric stabiliser. Polymeric stabilisers of this type do not tend to migrate out of the plastic or to be removed by extraction; they are therefore very permanent in use.
277921
Rasberger Michael
Rody Jean
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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