Tert-Butyl Peroxybenzoate

。Product description

　tert-Butyl peroxybenzoate

　Active Oxygen content : 8.0%

　CAS No. : 614-45-9 

。Specification 

　Appearance : clear liquid

　Assay : 98.0% min.

　Color : 100 Pt-Co max.

　tert-Butyl hydroperoxide : 1000 mg/kg max.

　Inorganic + organic hydrolyzable chloride : 50 mg/kg max.

。Physical properties

　Density, 20℃ : 1040 kg/m3

　Viscosity, 20℃ : 6 mPa.s

　Freezing point : approx. 8℃

。Packaging 

　Standard packaging size for LQ-TBPB is 25 kg net.

　Smaller packaging size is available on request.

。Application

1. Polymerization of styrene

　LQ-TBPB can be used for the polymerization and copolymerization of styrene in the temperature

　range of 100-140℃. During polymerization the temperature is increased in steps.

2. Polymerization of acrylates and methacrylates

　LQ-TBPB can be used as initiator for the solution (co)polymerization of acrylates and 

　methcrylates in the temperatures range of 100-170℃, amongst others for the coatings.

　LQ-TBPB can also be applied as an initiator for the bulk and suspension (co)polymerization of

　acrylates and methcrylates.

3. Polymerization of ethylene

　LQ-TBPB is an efficient initirtor for the ethylene polymerization under high pressure in both

　autoclave and tubular processes.

　To obtain a wide spectrum of polymerization temperatures, combinations with other peroxides 

　are applied in practice.

　Depending on reaction conditions. LQ-TBPB is active in the temperature range of 220-270℃.

4. Other applications

　LQ-TBPB can also be used for the (co)polymerization of acrylonitrile and vinyl acetate.

5. Crosslinking Peroxides

　LQ-TBPB,is suitable for crosslinking of EPDM rubber compounds at ambient temperature within 

　some weeks.

　Rubber compounds containing LQ-TBPB have moderate processing safety in combination with a 

　very high speed of cure.

6. Peroxides for Thermoset Resins

　LQ-TBPB, tert-butyl peroxybenzoate, is an aromatic perester, which is used for the curing of 

　unsaturated polyester resins at elevated temperatures.

　LQ-TBPB is preferred for the curing of UP resin based Hot Press

　Moulding formulations (SMC, BMC, ZMC etc) in the temperature range of 120 - 170℃.