| 摘要 |
1,150,848. Condensation catalysts. TOYO RAYON K.K. 3 Oct., 1967 [4 Oct., 1966], No. 44905/67. Heading B1E [Also in Division C5] Catalysts used in the co-dimerisation of ethylene and a conjugated diene (see Division C5) comprise:- a) a cobalt salt (including inorganic and organic salts, and chelate compounds), b) a sulphur-containing tertiary phosphine having one 'of the formulae where the R's are organic groups and n is 2 or 3, and c) an organo-aluminium compound of formula where R<SP>4</SP> and R<SP>5</SP> are C 1-10 hydrocarbon groups and X is halogen or a C 1 _ 10 hydrocarbon group. |
