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chloride tetrahydrate in tert-butyl alcohol according to the procedure of Example 7. The final product is a mixture of oligomers such as prepared in Example 56 although the ratios of the individual components may not be the same as those in the product of Example 56. 

Oligomer of N-{2-[N-[1-(2-Hydroxy-2- methy lpropoxy )-2,2,6,6-tetramethylpiperidin-4-y 1] butylamino ]s-triazin-4-yl }-N,N’-bis[l-(2-hydroxy-2- methylpropoxy)-2,2,6,6-tetramethylpiperidin-4-yl]- 1,6-hexanediamine Terminated with Acetyl 

The compounds prepared in Examples 53B and 53C are mixed together in a 2: 1 molar ratio in xylene at 100---160° C. using sodium hydroxide as the acid acceptor. After the reaction is complete, the reaction mixture is concentrated at reduced pressure. Acetic anhydride is added to the reaction mixture at room temperature, and the mixture is then heated at 130° C. The crude mixture is cooled and neutralized with potassium carbonate. The reaction mixture is concentrated at reduced pressure. The product is a mixture of oligomers that include 2,4, and 6 repeating units as seen in the structure below. 

## EXAMPLE 58 

Poly[ 1-(2-hydroxy-2-methylpropoxy )-2,2,6,6- tetramethylpiperidin-4-y l Acrylate 

The title compound is prepared from the free radical polymerization of the compound obtained in Example 21. The average molecular weight of the polymer is 1500-3000 amu. 

1,4-bis( 4-Hydroxy-2,2,6,6-tetramethylpiperidin-1- yloxy)-2-butanol 

Tributyltin hydride is added dropwise to a solution of 1,4-dibromo-2-propanol and excess 4-hydroxy-l-oxyl-2,2, 6,6-tetramethylpiperidine in chlorobenzene. The mixture is heated to facilitate the reaction. The crude reaction mixture is passed through silica gel with heptane and then heptane/ ethyl acetate to afford the title compound. 

1,3-bis( 4-hydroxy-2,2,6,6-tetramethylpiperidin-1- yloxy)-2-propanol 

Tributyltin hydride is added dropwise to a solution of 1,3-dibromo-2-propanol and excess 4-hydroxy-l-oxyl-2,2, 

## EXAMPLE 61 

## EXAMPLE 62 

## EXAMPLE 63 

<img src='content_image/930031.jpg'>

Oligomer of N-(2-[N-[1-(2-hydroxy-2- methy lpropoxy )-2,2,6,6-tetramethylpiperidin-4-y 1] butylamino ]-s-triazin-4-yl }-N ,N’-bis[l-(2-hydroxy- 2-methylpropoxy)-2,2,6,6-tetramethylpiperidin-4- yl]-1,6-hexanediamine Terminated with Acetyl 

Example 54 is repeated except that acetic anhydride is used in place of 2,4-bis(dibutylamino)-6-chloro-s-triazine according to the procedure of Example 58. The final product 55 is a mixture of oligomers as described in Example 58 although the ratios of the components may not be identical to those of the product prepared in Example 58. 

Poly[ 1-(2-hydroxy-2-methylpropoxy )-2,2,6,6- tetramethy lpiperidin-4-y l Methacrylate 

The title compound is prepared from the free radical polymerization of the compound obtained in Example 16B. 65 The average molecular weight of the polymer is 1500-3000 amu. 

## EXAMPLE 59 

## Example 60 

6,6-tetramethylpiperidine in chlorobenzene. The mixture is heated to facilitate the reaction. The crude reaction mixture is passed through silica gel with heptane and then heptane/ ethyl acetate to afford the title compound. 

2-Hydroxy-2-methylpropane-1,3-diyl bis([l-(2- hydroxy-2-methylpropoxy)-2,2,6,6- tetramethylpiperidin-4-yl](l-oxy-2,2,6,6- tetramethylpiperidin-4-yl) Sebacate 

The title compound is isolated by high pressure liquid chromatography from the crude reaction product obtained in Example 2. 

1,3-bis( 4-octadecanoyloxy-2,2,6,6- tetramethy lpiperidin-1-yloxy )-2-methy 1-2-propanol 

Aqueous hydrogen peroxide is added to a mixture of 4-octadecanoy loxy-l-oxyl-2,2,6,6-tetramethy lpiperidine and ferrous chloride tetrahydrate in tert-butyl alcohol at 

## EXAMPLE 64 

## EXAMPLE 65 

