Task: Translation
Input (Czech): Polyamid inherentn stabilizovan² v i sv tlu a teplu se vyr b tak, e se polymerace prov d v p° tomnosti a) · inn ho mno stv alespo jednoho deriv tu piperidinu obecn ho vzorce I, kde znamen R.sub.1.n. H, benzyl nebo C.sub.1-20.n.alkyl, R.sub.2.n. a R.sub.5.n. H nebo stejn² nebo r zn² C.sub.1-6.n.alkyl, X m n voln²ch vazebn ch m st a znamen pop° pad substituovan² C.sub.1-30.n.alkylen nebo pop° pad substituovan² C.sub.6-20.n.arylen, m 0 nebo 1, -C(O)-R.sub.6.n. skupinu, kter m e tvo°it amidovou vazbu spolu s aminem a n 1, 2 nebo 3 a b) · inn ho mno stv alespo jednoho deriv tu 4-amino-2,2,6,6-tetramethylpiperidinu obecn ho vzorce II, kde znamen R.sub.7.n. H, benzyl nebo C.sub.1-20.n.alkyl, a je vhodn² pro v²robu nap° klad vl ken, koberc , p° z a l tek.\
Output (English): An inherently light- and heat-stabilized polyamide is prepared by polymerizing polyamide forming monomers in the presence of (a) an effective amount of at least one piperidine derivative of the general formula I: wherein Ri1 represents  hydrogen, benzyl, or a alkyl containing 1 to 20 carbon atoms; Ri2 through Ri5 denote each hydrogen or the same or a different alkyl having 1 to 6 carbon atoms; X has n free valance bonding sites and represents an alkyl or substituted alkylene having from about 1 to about 30 carbon atoms or an arylene having from about 1 to about 20 carbon atoms w; m is 0 or 1; -C(O)-Ri6 represents a group that can form an amide bond together with an amine, and n is equal to 1, 2 or 3 and (b) an effective amount of at least one 4-amino-2,2,6,6-tetramethylpiperidine derivative of the general formula II: wherein Ri7 denotes hydrogen, benzyl, or a alkyl containing 1 to 20 carbon atoms. The inherently light- an heat-stabilized polyamide may be used to form articles such as, for example, fibers, carpets, yarns, and textile fabrics.