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Different UV stabilizers are utilized depending upon the substrate, intended functional life, and sensitivity to UV degradation. UV stabilizers, such as benzophenones, work by absorbing the UV radiation and preventing the formation of free radicals. Depending upon substitution, the UV absorption spectrum is changed to match the application ...
2-(2-Hydroxyphenyl)-2H-benzotriazoles, also referred to as phenolic benzotriazoles, are an important class of UV absorbers [1] comprising the benzotriazole building block. Structure [ edit ]
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UV-328 is a light stabilizer for a variety of plastics and other organic substrates. Its use is recommended for the stabilization of styrene homopolymers and copolymers , acrylic polymers, unsaturated polyesters , polyvinyl chloride , polyolefins , polyurethanes , polyacetals , polyvinyl butyral , elastomers and adhesives . [ 5 ]
Pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate): A primary antioxidant consisting of sterically hindered phenols with para-propionate groups. Primary antioxidants (also known as chain-breaking antioxidants) act as radical scavengers and remove peroxy radicals (ROO•), as well as to a lesser extent alkoxy radicals (RO•), hydroxyl radicals (HO•) and alkyl radicals (R•).
Hindered amine light stabilizers (HALS) are chemical compounds containing an amine functional group that are used as stabilizers in plastics and polymers. [1] These compounds are typically derivatives of tetramethylpiperidine and are primarily used to protect the polymers from the effects of photo-oxidation; as opposed to other forms of polymer degradation such as ozonolysis.
Each primary Kyuranger carries a Seiza Blaster (セイザブラスター, Seiza Burasutā, Constellation Blaster) gauntlet, which they can use to transform, access their Kyutamas' power, [2] [4] and perform the All-Star Crash (オールスタークラッシュ, Ōru Sutā Kurasshu), Kyuren All-Star Crash (キ ...
He traveled between 15 cities, while appearing in stage shows for Kyuranger on weekends. In April, a mobile fan club site is launched. [ 5 ] After officially graduating from Kyuranger in the summer movie Uchu Sentai Kyuranger vs Space Squad , he held a birthday live in Shibuya and announced his major debut in December.