HALS hindered amine light stabilization

Tinuvin 765 (HALS hindered amine light stabilizer) Ciba-Geigy Corp. Bis(1,2,2,6,6-pentamethyl-4-piperidinyl)sebacate(minor component proprietory)... [Pg.96]

Thioethers increase long-term stability in conjunction with phenolic antioxidants. Their use is limited to applications where possible effect on odour or taste and negative interaction with HALS (hindered amine light stabilizers) is not important. [Pg.131]

HALS hindered amine light stabilizer PBMA polybutyl methacrylate... [Pg.1159]

HALS (Hindered Amine Light Stabilizers) 95, 1008, 1014, 1133-1136, 1139, 1148, 1205 Hansen s solubility parameters, 3 162-166, 897, 901-904 Hardness measurements Hardness... [Pg.1407]

Radical Scavengers (Sterically Hindered Amines). Two typical sterically hindered amines (HALS = Hindered Amine Light Stabilizer) follow ... [Pg.169]

Hindered amine light stabilizers (HALS). Hindered amine light stabilizers are the newest type of UV light stabilizer. They were introduced in 1975 by Ciba and Sankyo. HALS do not screen ultraviolet light, but stabilize the resin via free-radical termination. HALS are used at lower levels than benzophenones and benzotriazoles, and are widely used in polyolefins for their cost-effectiveness and performance. The successful growth of HALS has been directly related to their substitution for benzophenones and benzotriazoles in many applications as well as their blending with benzophenones. [Pg.287]

The latest class of photostabilizers developed commercially is based on hindered amines (known as HALS, hindered amine light stabilizers)... [Pg.586]

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