HINDERED AMINE LIGHT STABILIZERS (HALS)

 

HALS function as light stabilizers by scavenging the radical intermediates in the photo-oxidation process. An important feature differentiating hindered amines from other classes of stabilizers is their ability to act by a regenerative mechanism. While the exact nature of this mechanism is still subject to debate, it is generally accepted that a single hindered amine is capable of deactivating multiple photo-oxidation chains. As a result, they have proven to be highly effective for the light stabilization of polyolefins and other plastics. Some HALS (such as LA-52MP, LA-57, LA-63P, and LA-68) also contribute to the thermal stability of plastics. Combinations of HALS and UV absorbers often provide synergistic performance.

Amfine offers a complete range of HALS products, including conventional low molecular weight types (LA-72, LA-77Y), unique medium molecular weight types (LA-52MP, LA-57), high molecular weight types (LA-63P, LA-68), non-basic NO-Alkyl HALS (LA-81), and a co-polymerizable product (LA-82). We also provide innovative, fully formulated light stabilization systems based on proprietary technology from ADEKA (LA-402AF, LA-502XP).

LA-52MP
Medium molecular weight HALS masterbatch for use in the stabilization of automotive PP and TPO compounds

LA-57
Medium molecular weight HALS for use in the light stabilization of polyolefins, styrenic polymers, and other plastics

LA-63P
High molecular weight HALS for the light stabilization of polyolefin films and fibers, styrenic polymers, engineering plastics, and sealants

LA-68
High molecular weight HALS for the light stabilization of polyolefin films and fibers, styrenic polymers, engineering plastics, and sealants

LA-72
General purpose liquid HALS for use in the light stabilization of plastics and coatings

LA-77Y
General purpose HALS for the light stabilization of styrenic polymers, polyolefins, and other plastics

LA-81
Liquid, non-basic NO-Alkyl type HALS for use in the light stabilization of plastics, coatings, and sealants

LA-82
Unique co-polymerizable HALS for use in the light stabilization of thermoplastic and thermoset systems

LA-402AF
Fully-formulated light stabilization system for automotive PP and TPO compounds based on proprietary technology from ADEKA

LA-502XP
Fully-formulated light stabilization system for mineral-filled automotive PP and TPO compounds based on proprietary technology from ADEKA

 

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