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Interaction of Benzoate-type Ultraviolet Absorbers with Hindered Amine Light Stabilizers
HALS HALS nitrosonium Photo-antioxidant activity Benzoate-type UVA
2009/8/4
The interaction of benzoate-type ultraviolet absorbers (UVA) with hindered amine light stabilizers (HALS) was investigated. Benzoate-type UVA showed antagonism or synergism with HALS, depending on th...
Synergism between Hydrogen Bond-type Ultraviolet Absorbers and Hindered Amine Light Stabilizers
HALS UVA Photo-antioxidant activity Antagonism Synergism
2009/8/4
The synergism of hydrogen bond-type ultraviolet absorbers (UVA), such as phenyl salicylate and benzotriazole type UVA, and hindered amine light stabilizers (HALS) was investigated and compared with t...
Search for Unified Action Mechanism of Hindered Amine Light Stabilizers
HALS HALS nitrosonium Synergism Antagonism Action mechanism
2009/8/4
Hindered amine light stabilizers (HALS) possess many functions unlike other additives and are frequently used to extend the service life of polymeric materials, but show particular compatibility with...
Interaction of Hindered Amine Light Stabilizers and Ultraviolet Absorbers
HALS UVA Antagonism Synergism Photo-oxidation Quinone
2009/8/4
The reason is discussed, why ultraviolet absorbers (UVA) having phenolic moiety show the synergism with HALS apparently, on the contrarily to phenolic antioxidants. A HALS nitrosonium is a substrate ...
Influence of Ultraviolet Absorbers on Decomposition of Hydroperoxide by Hindered Amine Light Stabilizers
Hydroperoxide Decomposition HALS UVA Synergism
2009/8/4
The interaction between hindered amine light stabilizers (HALS), and ultraviolet absorbers (UVA) was investigated, in order to clarify the reason why they generally show synergism, although UVA belong...
Interaction between Nitroxide of Hindered Amine Light Stabilizers and Phenol
HALS Phenol Antagonism HALS nitrosonium HALS nitroxide
2009/8/4
The antagonism between nitroxides of hindered amine light stabilizers (HALS NO) and phenolic antioxidants, such as 2,6-di-t-butyl-4-methylphenol (BHT), was investigated. Identification of the reactio...
New Antagonism of Hindered Amine Light Stabilizers with Acidic Compounds Including Phenolic Antioxidants (Part 2) Formation Mechanism of Active Species of Peroxide Decomposition Reaction
HALS Phenolic antioxidant Antagonism Nitrosonium salt
2009/7/27
The effect of acidic compound on the formation of active species in homolytic hydroperoxide decomposition by hindered amine light stabilizers (HALS) was studied. The hydroperoxide decomposition activ...
