: TPO - Lambson

UV CURING | UV ABSORBERS | PVP/PVPP | OPTICAL BRIGHTENERS | ANTI OXIDANTS Lambson Limited Lamro House 603 Thorp Arch Estate Wetherby West Yorkshire LS23 7FS Tel +44 (0) 1937 840 150 Fax +44 (0) 1937 840 151 Email Web Chemical Name: 2,4,6-trimethylbenzoyldiphenylphosphine oxide CAS Number: 75980-60-8 EC Number: 278-355-8 Molecular Weight: General Information Speedcure TPO is an extremely efficient Type I homolytic photoinitiator, which absorbs UV light at longer wavelengths, thus making it particularly suitable for curing pigmented formulations. Speedcure TPO undergoes a photo-bleaching reaction that allows the effective curing of thick films. Date issued: 09-09-2011 Page 1 of 2 Applications Wood coatings and filler Glass fibre reinforced polyester laminates Manufacture of printing plates Pigmented printing inks : TPO | Leading the way in product innovation Technical Data Sheet Features and Benefits Absorbs long wavelength UV to undergo bond cleavage providing very reactive radicals (379 nm).

-0.5 0 0.5 1 1.5 2 2.5 3 210 260 310 360 410 nce Wavelength (nm) 0.001% 0.002% 0.005%: TPO Date issued: 09-09-2011 Page 2 of 2 …

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