C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 211/36 (2006.01) C08G 65/08 (2006.01) C08G 65/22 (2006.01) C08L 71/00 (2006.01) C08L 71/02 (2006.01) C08L 101/00 (2006.01) C09D 171/00 (2006.01) C09K 15/30 (2006.01)
Patent
CA 2127733
Abstract Polyethers containing hindered amines which can be cleaved off as stabilizers The invention relates to polyethers containing recurring units of the formula I Image (I) in which A is -CH2- or -CO-, and, when A is methylene, E is Image , and when A is carbonyl, E is Image ; R1 is hydrogen, and R2 is likewise hydrogen or an aromatic, aliphatic or araliphatic carbonyloxy radical or a corresponding radical of an ether or tertiary amine, or R1 and R2 together are a =O substituent or together with the carbon atom to which they are bonded are a five- or six-membered, substituted, oxygen- and/or nitrogen-containing heterocyclic ring, and R17 is a hydrocarbon radical having a maximum of 18 carbon atoms. The polyethers according to the invention can advantageously be employed for thestabilization of organic material against the harmful effect of light, oxygen and/or heat.
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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