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Chimassorb® 81 P

Technical Datasheet | Supplied by BASF
Chimassorb® 81 P by BASF is a benzophenone grade. Acts as a UV absorber. Imparts good light stability when used in combination with a hindered amine light stabilizer (HALS) of the Chimassorb®, Tinuvin® or Uvinul® range. Shows good compatibility with polyolefins and plasticized PVC. Protects a number of other polymers against degradation caused by light exposure such as plasticized PVC and rubbers. It can also be used in combination with antioxidants, phosphites and other light stabilizers. Suitable for low density and linear low density polyethylene as well as ethylene-vinyl acetate copolymers for agricultural films. It can be used as well as a UV barrier to protect the contents of packages for both industrial and consumer applications. Particularly suitable for thick films, typically > 100 μm and thick sections. Its low vapor pressure prevents losses during processing. Low migration rates reduce the risk of blooming. Also, in combination with HALS, Chimassorb® 81 P can be used in high density polyethylene molded articles, e. g. in crates. Recommended dosage is 0.10-0.5% for PE and 0.15-0.5% for LLDPE, LDPE and EVA.
Product Type
Light Stabilizers / UV Absorbers > Benzophenones
Chemical Composition
Benzophenone
CAS Number
1843-05-6
Physical Form
Powder
Appearance
Yellow
Product Status
COMMERCIAL
Applications/ Recommended for
  • Other Thermoplastic > EVA
  • PE > HDPE
  • PE > LLDPE
  • PE > LDPE
  • PVC > PVC, flexible
  • Households products/ Consumer Goods > Boxes & crates
  • Packaging > Industrial / Agriculture / Consumer goods > Films, standard
  • Barriers > UV light filtering

Chimassorb® 81 P Properties

Property

Value & Unit
Test Condition
Test Method
Molecular weight
326.4 g/mol
Melting range
47 - 49 °C
Flashpoint (DIN 51758
> 200 °C

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