光稳定剂
产品名称:LS-144
Product name:Light Stabilizer 144
Chemical name :[[3,5-di-tert-butyl-4-hydroxyphenyl]methyl]-butylmalonate(1,2,2,6,6-pentamethyl-4-piperidinyl)ester
CAS No. 63843-89-0
Structure formula
Appearance:white to light yellow powder
Melting point:146-150℃
Content:≥99%
Loss on dry:≤0.5%
Ash:≤0.1%
Transmittance:425nm: ≥97%
460nm: ≥98%
500nm: ≥99%
Application
LS-144 is recommended for applications such as: automotive coatings ,coll coatings , powder coatings
The performance of LS-144 can besignificantly improved when used in combination with a UV absorber such anrecommended below.These synergistic combinations give superior protection against glossreduction, cracking,blistering delamination and color change inautomotive coatings. LS-144 can also reduce yellowing caused by overbake.
The light stabilizers may be added in twocoat automotive finishes to the base and clear coat.However, according to ourexperience the optimum protection is achieved by adding the light stabilizer tothe topcoat.
Possible interactions of LS-144 required foroptimum performance should be determined in trials covering a concentrationrange.