Polyester
AssigneeClariant Finance (BVI) Limited
InventorJoseph R. Webster
Life of this patent
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Abstract
The disclosure pertains to an intimate molecular mixture of polyester with an effective amount of compound (A) ##STR1## where n=2 and at least one R.sup.4 group represents a sterically hindered amine group adjacent to the carbonyl, and preferably each R.sup.4 group is a hindered amino group. Exemplary R.sup.4 groups are according to formulae ##STR2##
Claims7
A polyester polymer in intimate mixture of polyester with an effective amount of compound (A) ##STR20## wherein n=2 or 3 and at least one R.sup.4 group represents a sterically hindered amine group adjacent to the carbonyl, and said R.sup.4 is selected from the group consisting of formulae (.alpha.) ##STR21## wherein for either .alpha. structure R' is hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or alkamino, C.sub.1 -C.sub.18 alkylamino substituted by halogen, C.sub.1 -C.sub.18 hydroxy, carboxyl groups, carbamyl groups, C.sub.1 -C.sub.12 alkoxycarbonyl groups, C.sub.3 -C.sub.5 alkenyloxy, unsubstituted benzyloxy, benzyloxy substituted by halogen or C.sub.1 -C.sub.5 alkyl, aliphatic acyloxy containing up to 18 carbon atoms, unsubstituted benzoyloxy, benzoyloxy substituted with halogen, and benzoyloxy substituted with C.sub.1 -C.sub.4 alkyl, --CO--C.sub.4 alkyl.
Dependencies are inferred from the claim text.