UV absorbers for polymers

Mfsorb® 1600
Summary Brief: Chemical Name:2-[4,6-Bis([1,1'-biphenyl]-4-yl)-1,3,5-triazin-2-yl]-5-[(2-ethylhexyl)oxy]phenol CAS NO.: 204583-39-1
Mfsorb® 312
Summary Brief: Chemical Name:N-(2-Ethoxyphenyl)-N'-(2-ethylphenyl)oxamide CAS NO.: 23949-66-8
Mfsorb® 120
Summary Brief: Chemical Name:2,4-Di-tert-butylphenyl-4’-hydroxy-3’,5’-di-tert-butyl benzoate CAS NO.: 4221-80-1
Mfsorb® 3638
Summary Brief: Chemical Name:2,2-(1,4-phenylene)bis((4H-3,1-benzoxazine-4-one) CAS NO.: 18600-59-4
Mfsorb® 2908
Summary Brief: Chemical Name:hexadecyl 3,5-di-tert-butyl-4-hydroxybenzoate CAS NO.: 67845-93-6
Mfsorb® 400
Summary Brief: Chemical Name:1, 3- Benzenediol, 4- [4, 6-bis (2, 4- dimethylphenyl)-1, 3, 5- triazin- 2-yl]-, reaction products with [(dodecyloxy) methyl]oxirane and oxirane mono...
Mfsorb® 531
CAS No.: 1843-05-6
EINECS No. : 217-421-2
Chemical Formula: C₂₁H₂₆O₃
Mfsorb® 201
Product Name: Mfsorb® 201
Chemical Name: Bis-(2,4-Dihydroxy-Phenyl)-Methanone
Mfsorb® 501
Product Name: Mfsorb® 501
INCI Name: Benzophenone-1
Chemical Name: 2,4-Dihydroxy Benzophenone
Mfsorb® 329
CAS No.: 3147-75-9
EINECS No.: 221-573-5
Chemical Formula: C₂₀H₂₅N₃O
Mfsorb® 360
CAS No.: 103597-45-1
EINECS No.: 403-800-1
Chemical Formula: C₄₁H₅₀N₆O₂
Mfsorb® 328
CAS No.: 25973-55-1
EINECS No.: 247-384-8
Chemical Formula: C₂₂H₂₉N₃O

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UV susceptibility varies significantly between different polymers. Certain polycarbonates, polyesters and polyurethanes are highly susceptible, degrading via a Photo-Fries rearrangement. UV filters absorb and dissipate the energy from UV rays as heat, typically by reversible intramolecular proton transfer. This reduces the absorption of UV rays by the polymer matrix and hence reduces the rate of weathering.Benzotriazoles and hydroxyphenyltriazines.

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