LOTSORB UV 1130 (CAS:104810-48-2)

Product Description

Lotsorb UV 1130 is a liquid UV absorber of the hydroxyphenyl benzotriazole class specifically  developed for industrial coating applications.

Key Features & Benefits

- Versatile product for use in water and solvent based coatings 

- Excellent spectral coverage in the UV-B and UV-A region 

- Hydroxyl functionality can be reacted with melamine and isocyanate crosslinkers to reduce  migration

Chemical Composition

A mixture of: a) 50% β-[3-(2-H-Benzotriazole-2-yl)-4-hydorxy-5-tert.butylphenyl]-propionic acidpoly(ethylene glycol) 300-ester, b) 38% Bis{β-[3-(2-H-Benzotriazole-2-yl)-4-hydroxy- 5tert.butylphenyl]-propionic acid}-poly(ethylene glycol) 300 –ester, and c) 12% polyethylene  glycol

Typical Characteristics

Properties 

Appearance                                                      yellow to light amber viscous liquid

CAS No.                                                            104810-48-2

Molecular weight                                             637 (monomer), 975 (dimer) 

Density at 20°C                                                1.17 g/cm3

Viscosity at 20°C                                             7,400 cps

Miscibility at 20°C (g/100g solution): 

butyl carbitol                                                  > 50 

butanol                                                           > 50 

butyl acetate                                                   > 50 

ethyl glycol                                                     > 50 

1-methoxy propylacetate-2                           > 50 

methylethylketone                                         > 50

xylene                                                            > 50

hexane dioldiacrylate (HDDA)                       > 50

trimethylolpropane triacrylate (TMPTA)        > 50 

water                                                              not miscible 

These typical values should not be interpreted as specifications. Miscibility should be tested for each individual  case. 

Transmittance Spectrum ( in Toluene, cell thickness 1cm)

Top line: 0.001% UV 1130 corresponds to 0.25% in a 40µ film 

Second line: 0.002% UV 1130 corresponds to 0.50% in a 40µ film

Third line: 0.004% UV 1130 corresponds to 1.0% in a 40µ film 

Bottom line: 0.006% UV 1130 corresponds to 1.5% in a 40µ film

Applications

UV 1130 is a liquid UV absorber of the hydroxyphenyl benzotriazole class specifically developed  for industrial coating applications. Its high temperature and extraction resistance makes it especially  suitable for industrial and automotive coatings. Because of its broad UV absorption, it also provides  efficient protection to light sensitive substrates such as wood and plastics.

UV1130 is recommended for both solvent- and water-based coatings such as

• Interior/exterior general industrial metal coating applications

• Interior/exterior plastic component coating applications 

• Interior/exterior wood coatings for floor, furniture, or mill work applications 

• Automotive OEM or refinish applications

Processing

Since UV 1130 is miscible with all common solvents, it is also easily incorporated into  waterborne systems by dilution with a water-miscible solvent such as butylcarbitol.

Recommended Concentrations

1.0 – 3.0%

Safety

The usual safety precautions when handling chemicals must be observed. These include the  measures described in Federal, State, and Local health and safety regulations, thorough ventilation of  the workplace, good skin care, and wearing of protective goggles.