Ultraviolet absorbent UV- 2020
Chemical name 1,6-Hexanediamine, N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)- polymer with2,4,6-trichloro-1,3,5-triazine, reaction products with N- butyl-1-butanamine and N-butyl-2,2,6,6-tetramethyl-4- piperidinamine
CAS number 192268-64-7
Structure
Molecular weight 2600 3400 g/mol
Product forms Appearance:slightly yellow granules
Guidelines for use Fibers:UV and thermal stabilization of PP 0.1-1.4 %
Tapes:UV and thermal stabilization of PP and HDPE 0.1- 0.8 %
Thick sections*:UV and thermal stabilization of PP, HDPE, LDPE and LLDPE 0.05- 1.0 %
Films*:UV and thermal stabilization of LDPE, LLDPE, EVA and EBA 0.1- 1.0 %
Physical properties
Melting range 120 150 °C
Flashpoint not tested
Specific gravity (20 °C) 1.01 g/cm³
Vapor pressure (20 °C) 7 E-10 Pa (extrapolated
Solubility (20 °C) % w/w
Water < 0.0001
n-Hexane > 50
Tetrahydrofurane > 15
Dichloromethane > 15
Ethanol/Water 95/5 > 2.5
n-Octanol > 1.0
Isopropanol > 0.2
Volatility Pure substance; TGA-data,heating rate 10 °C/min in air
Weight loss % Temperature °C
0.7 250
0.8 275
1.1 300
1.7 325
3.6 350
Applications
UV 2020 is a higly effective light stabilizer for polyolefins (PP, PE), olefin copolymers such as EVA as well as blends of polypropylene with elastomers.
In addition, in certain instances UV 2020 is highly effective in poly- acetals, polyamides, polyurethanes, flexible and rigid PVC, as well as PVC blends and in certain styrenic elastomer and specialty adhesive applications.
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