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Neodymium phosphate-based catalyst

Neodymium phosphate-based catalysts were used as early as in 1978 for the polymerization of IP by Monakov et al. [249,250]. At a later stage neodymium phosphate-based catalyst systems were claimed by Asahi in a patent issued in the mid 1980s [251,252]. A neodymium-phosphate which is predominantly mentioned in the context of diene polymerization is neodymium bis(2-ethylhexyl)phosphate (NdP). In Chinese scientific literature NdP (Scheme 5) is often abbreviated by its commercial name Nd(P204)3-... [Pg.22]

For the ternary neodymium phosphate-based catalyst systems (NdP/ DIBAH/EASC) a totally different dependence of polymerization rates on Ai/ Nd-rahos was reported [264-269,272]. According to these studies the catalyst system is highly active even at low Ai/MNd-ratios < 5 and polymerization rates decrease with increasing Ai/ Nd-ratios within the Ai/ Nd-range = 5-50 (Sect. 2.1.1.10) [272]. [Pg.40]

See other pages where Neodymium phosphate-based catalyst is mentioned: [Pg.52]    [Pg.54]    [Pg.163]    [Pg.60]   
See also in sourсe #XX -- [ Pg.22 ]



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