Compositions stabilized by dioxopiperazinyl derivatives

Details Compositions stabilized by dioxopiperazinyl derivatives Compositions stabilized by dioxopiperazinyl derivatives

C - Chemistry, Metallurgy

07

D

C07D 241/08 (2006.01) C07D 403/14 (2006.01) C07D 405/14 (2006.01) C08K 5/3462 (2006.01) C08K 5/3492 (2006.01) C08L 55/02 (2006.01) C08L 59/00 (2006.01) C08L 69/00 (2006.01) G03C 1/34 (2006.01) C08L 59/02 (2006.01)

Patent

CA 2273386

Polyoxymethylene, blends of polycarbonate with acrylonitrile-butadiene-styrene terpolymer, and coatings based on a functional acrylate resin and a crosslinking agent, which are stabilized by addition of a compound of the formula I (see formula I) wherein s is from the range 1 to 8; R1, R2, R3 and R4, independently of each other, are C1-C4alkyl, or R1 and R2 or R3 and R4, together with the carbon atom to which they are bound, form a cyclopentyl or cyclohexyl ring; R5 is hydrogen; C1-C18alkyl; oxyl; OH; CH2CN; C1-C18alkoxy; C5-C12cycloalkoxy; C3-C8alkenyl; C3-C8alkynyl; C7-C12phenylalkyl; C7-C15phenylalkyl, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; C7-C15phenylalkoxy; C7-C15phenylalkoxy, which is substituted on the phenyl ring by 1, 2 or 3 radicals selected from C1-C4alkyl and C1-C4alkoxy; or R5 is C1-C8alkanoyl; C3- C5alkenoyl; C1-C18alkanoyloxy; glycidyl; or a group -CH2CH(OH)-G, in which G is hydrogen, methyl or phenyl; and A is as described in claim 1, show a good resistance against harmful effects of light, oxygen and heat.

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