Test plaques are mounted in metal frames and exposed in an Atlas Ci65 Xenon Arc Weather-Ometer with intermittent light/dark cycles and water spray following the ASTM G26 test procedure. Specimens are tested at periodic intervals for changes in tensile properties. Failure in this test is deter- mined by the observation of the loss of tensile properties. The longer it takes for the loss in properties to occur, the more effective is the stabilizer system. 

The test samples containing the instant compounds exhibit good light stabilization properties. 

Molded test specimens are prepared by injection molding thermoplastic olefin (TPO) pellets as described in Example 76. In addition to the instant compounds, selected flame retardants are also included in the test specimens. The flame retardants are tris(3-bromo-2,2-bis(bromomethyl)propyl) phosphate, decabromodiphenyl oxide, ethylene bis› (tetrabromophthalimide ), or ethylene bis-( dibromo› norbomanedicarboximide ). 

The samples including the instant hindered amines exhibit good light stabilizing activity. 

Film grade polyethylene is compounded and blown into film at 200° C. as described in Example 82 using a DOLCI film line. In addition to the instant compounds, selected flame retardants are included in the formulation. The flame retardants are tris(3-bromo-2,2-bis(bromomethyl)propyl) phosphate, decabromodiphenyl oxide, ethylene bis- (tetrabromophthalimide ), or ethylene bis-( dibromo› norbomanedicarboximide ). 

When tested for light stabilizing activity as described in Example 82, the films containing the instant compounds exhibit good stabilization. 

Molded test specimens are prepared by injection molding thermoplastic olefin (TPO) pellets containing the instant compounds, pigments and other coadditives as described in Example 77. 

The test specimens are painted with one-pack paint sys› tems and tested for TPO/paint interactions. Before painting, the test specimens are first wiped with isopropanol and air blasted to remove any dust. After a five minute flash, these specimens are coated with the adhesion promoter, then the base coat, and then optionally a clear coat. Typical film thickness of these various coatings are 0.1-0.3 mils for the adhesion promoter, 0.6-0.8 mils for the base coat, and 1.2-1.5 mils for the clear coat. After painting, the specimens are cured in an over at 120° C. for 30 minutes. 

Samples are tested to evaluate the TPO/paint interactions as follows: In the initial adhesion test, a clear cellophane adhesive tape is used to pull on a 3 mm cross hatched paint surface or; in the humidity test, the painted plaques are exposed for 240 hours at 38° C. in an atmosphere having 98% relative humidity. The blister rating is tested by visual observation according to ASTM D 714. 

The samples containing the instant compounds exhibit good TPO/paint interaction properties as determined by the criteria above. 

Resin materials of the general class known as thermo› plastic elastomers, examples of which include, copolymers 

## EXAMPLE 87 

## EXAMPLE 88 

## EXAMPLE 89 

## EXAMPLE 90 

Thermoplastic Elastomers 

of styrene with butadiene or isoprene and/or ethylene› cobutylene such as SES, SEES and SIS, are dry blended with the instant compounds and melt compounded into pellets. Typical formulations contain the instant compounds at levels from 0.05% to 2.0%, a metal stearate such as calcium stearate at 0.05% to 0.5%, pigments from 0% to 5%, UV absorbers at levels of 0.05% to 2.0%, phosphites at 0.0%-0.1 %, phenolic antioxidants at 0.0%-1.25%, N,N› dialkylhydroxylamine at 0.0%-0.1 %, and optionally other hindered amine stabilizers at levels of 0.0% to 2.0%. 

The pelletized fully formulated resin is then processed into a useful article such as blown or cast extrusion into film; injection molded into a molded article; thermoformed into molded articles; extruded into wire and cable housing; or rotational molded into hollow articles. 

The materials containing the instant compounds exhibit stability against deleterious effects of UV light and thermal exposure. 

Articles prepared according to Example 90 which addi› tionally contain selected organic pigments as well as the instant compounds also exhibit stability against the delete› rious effects of actinic light and thermal exposure. 

Articles prepared according to Example 90 which addi› tionally contain a hindered phenolic antioxidant selected from the group consisting of neopentanetetrayl tetrakis(3,5- di-tert-buty 1-4-hydroxyhydrocinnamate, octadecy 1 3,5-di› tert-buty l-4-hydroxyhydrocinnamate, 1,3,5-trimethyl-2,4,6- tris(3,5,-di-tert-butyl-4-hydroxybenzyl)benzene, 1,2-bis(3, 5-di-tert-bu ty 1-4-h ydroxy h ydrocinnamoy 1 )hydrazine, calcium [bis(monoethyl 3,5-ditert-butyl-4-hydroxybenzyl)› phosphonate ], 1,3,5-tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate and 1,3,5-tris(3-hydroxy-4-tert-buty 1-2,6- dimethylbenzyl) isocyanurate, as well as the instant com› pounds also exhibit stability against the deleterious effects of actinic light and thermal exposure. 

Articles prepared according to Example 90 which addi› tionally contain an organophosphorus stabilizer selected from the group consisting of tris(2,4-di-tert-butylphenyl) phosphite, bis(2,4-di-tert-buty 1-6-methy lpheny 1) ethy 1 phosphite, 2,2’,2"-nitrilo[triethyl-tris -(3,3’, 5,5’-tetra-tert› butyl-1,1’-biphenyl-2,2’-diyl) phosphite ], tetrakis(2,4-di› buty lpheny l) 4,4’-biphenylenediphosphonite, tris (nony lphenyl) phosphite, bis(2,4-di-tert-butylphenyl) pentaerythrityl diphosphite, 

2,2’-e thy lidene bis(2,4-di-te rt-bu ty lpheny 1) fluorop hos› phite and 2-butyl-2-ethylpropan-1,3-diyl 2,4,6-tri-tert› butylphenyl phosphite as well as the instant compounds of also exhibit stability against the deleterious effects of actinic light and thermal exposure. 

Articles prepared according to Example 90 which addi› tionally contain a benzofuranone stabilizer which is 5,7-di› tert-butyl-3-(3,4-dimethylphenyl)-2H-benzofuran-2-one, as well as the instant compounds also exhibit stability against the deleterious effects of UV light and thermal exposure. 

Articles prepared according to Example 90 which addi› tionally contain a dialkylhydroxylamine stabilizer which is 

## EXAMPLE 91 

## EXAMPLE 92 

## EXAMPLE 93 

## EXAMPLE 94 

## EXAMPLE 95 

