BASF and China UV Absorber Compare

The chemical market in China is by far the largest in the world and will make up two-thirds of the total growth of the global chemical market over the next five years. BASF is the leading company in several polymer antioxidants. In recent years, with technical accumulation and development. More and more Chinese manufacturer enter polymer additives’ market and reshaped the competing.

BASF Tinuvin P vs China UV P

item unit basf tinuvin  p standard BASF tinuvin p
COA
our uv p standard result
appearance / slight yellowish powder ok slight yellowish powder ok
melting range 128-132 NT 128-131 130
Volatiles ≤0.50 0.05 ≤0.50 0.12
Transmittance 440nm≥96.0 99.6 440nm≥96.0 97.5
460nm≥97.0 100 500nm≥97.0 99.2
Clarity of Solution / clear clear clear clear
assay ≥99.0 99.84% ≥99.0 99.86

BASF Tinuvin 326 vs China UV 326

item unit basf standard BASF tinuvin 326 our uv 326 standard result
appearance / slight yellowish powder ok slight yellowish powder ok
melting range 138-141 nt 137-142 140-141.5
Volatiles ≤0.10 ≤0.10 ≤0.50 0.03
Transmittance 460nm ≥93.0 98.9 ≥93.0 95.3
500nm ≥95.0 99.8 ≥96.0 98.3
Clarity of Solution / clear clear clear clear
assay ≥98.0 99.90% ≥99.0 99.38

BASF Tinuvin 329 vs China UV 329

item unit basf tinuvin 329 standard BASF tinuvin 329 COA our uv 329 standard result
appearance / slight yellowish powder ok slight yellowish powder ok
melting range 103-105 nt 102.0-108.0 103.9-105.5
Volatiles ≤0.20 ≤0.10 ≤0.50 0.06
Transmittance 440nm ≥96.0 99.4 ≥96.0 99.2
500nm ≥98.0 99.9 ≥97.0 99.5
Clarity of Solution / clear clear clear clear
assay ≥99.0 99.90% ≥99.0 99.86

BASF Chimassorb 81 P vs China UV 531

item unit basf chimassorb 81 standard BASF chimassorb 81 COA our uv 531 standard result
appearance / slight yellowish powder ok slight yellowish powder ok
melting range 47.0-49.0 47.6 47.0-49.0 47.5-48.2
loss on drying nt nt ≤0.50 0.22
ash nt nt ≤0.10 0.01
Volatiles ≤0.50 0.3 ≤0.50 0.06
Transmittance 425nm ≥79.0 82.3 ≥90.0 93.8
500nm ≥89.0 95.2 ≥95.0 98.8
Clarity of Solution clear clear clear clear
assay nt nt ≥99.0 99.53
color value gardner ≤7.5 6.8 NT NT

BASF Tinuvin 622 vs China Light Stabilizer 622

item unit basf standard BASF tinuvin 622 COA our uv 622 standard result
appearance / coarse, white to slightly yellow powder ok white  powder pass
molecule weight / 3100-4000 3325 ≥3100 3342
solution viscosity 1.99-2.23 2.05 NT NT
Volatiles ≤0.50 0.1 ≤0.50 0.1
Transmittance 425nm ≥97.0 99 ≥95.0 98.5
500nm NT NT ≥97.0 99.6
Clarity of Solution clear clear clear clear
ash NT NT ≤0.10 0.02
melting Point NT NT 50-70 64.5

BASF Tinuvin 770 vs China Light Stabilizer 770

item unit basf tinuvin 622 standard BASF tinuvin 622 COA our uv 622 standard result
appearance / white to off-white granules ok white  powder pass
Volatiles ≤0.50 0.2 ≤0.50 0.2
Transmittance 425nm ≥98.0 99.4 ≥98.0 99
500nm NT NT ≥98.0 99.7
Clarity of Solution / clear clear clear clear
assay ≥98.0 99 ≥98.0 99.35
melting Point NT NT 80-85 82.5
ash NT NT ≤0.10 0.02
monoester NT NT ≤1.9 0.07
color, APHA / NT NT ≤50 5.5

BASF Chimassorb 944 vs China Light Stabilizer 944

item unit basf Chimassorb 944 standard BASF Chimassorb 944 COA our uv 944 standard result
appearance / slightly yellow,transparent pastilles ok white  powder pass
Volatiles ≤1.0 0.2 ≤1.0 0.3
Transmittance 425nm ≥92.0 97.3 ≥93.0 95.8
500nm ≥95.0 98.9 ≥95.0 97.5
Molecule Weight / 2000-3000 2263 2100-3000 2432
assay ≥98.0 99 ≥98.0 99.35
melting point NT NT 105-135 115
ash NT NT ≤0.10 0.02

 

Conclusion

In mature polymer UV absorber species, Chinese producer is able to replace the leading brands in most applications. Innovation and product stability is the breakthrough point of local manufacturers.

what we do – only right partner

To provide customers with satisfied goods on time, the supply chain is highly valued and really it is where added value start. We strictly choose a manufacturer with Supply Management Module and we invest in the really good ones. Leading manufacturer of each product becomes our partner. Only by doing this, we able to be our customers’ right partner.

Source:

[1] BASF product standard is pick up from BASF website site. product date is a random pick from certification of analysis(COA).