Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate
Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, identified by CAS number 41556-26-7, is a high-performance hindered amine light stabilizer (HALS) widely utilized in the polymer and coatings industries. This chemical compound appears as a clear to slightly yellowish liquid and is characterized by its low volatility and excellent compatibility with various organic substrates. Its chemical structure, featuring methylated piperidyl groups, allows it to effectively scavenge free radicals generated by ultraviolet radiation, thereby preventing the degradation of materials exposed to harsh environmental conditions.
In industrial and research settings, this material is valued for its ability to maintain the physical integrity and aesthetic appearance of polymers over extended periods. It functions by inhibiting the photo-oxidation process, which otherwise leads to cracking, gloss loss, and mechanical failure. Proper handling involves standard industrial safety protocols, ensuring the material is stored in a cool, dry environment to maintain its chemical stability and efficacy as a functional additive.
• This compound is extensively used in the automotive and industrial coatings sector to enhance the durability of clear coats and pigmented finishes. By neutralizing free radicals formed during UV exposure, it prevents surface defects such as chalking, yellowing, and loss of gloss, ensuring that exterior finishes retain their protective properties and visual appeal under intense sunlight.
• In the plastics industry, it serves as a critical additive for polyurethanes, polypropylenes, and various engineering thermoplastics. It is particularly effective in applications where long-term thermal and light stability are required, such as in agricultural films, outdoor furniture, and construction materials, where it helps preserve tensile strength and flexibility.
• The material is frequently employed in the formulation of adhesives, sealants, and elastomers to prevent premature aging and embrittlement. Its liquid form allows for easy incorporation into complex formulations, providing uniform protection throughout the polymer matrix and extending the service life of components used in aerospace, marine, and electronic applications.
Product Name: Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate
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