Selective hydrogenation of conjugated diolefin polymers with Teb

Details Selective hydrogenation of conjugated diolefin polymers with Teb Selective hydrogenation of conjugated diolefin polymers with Teb

1993-04-16

1994-08-02

Lipman, Bernard

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

25218311, 5253592, 526124, B01J 3100

Patent

active

053345665

ABSTRACT:
This is a process for the hydrogenation of conjugated diolefin polymers which comprises polymerizing or copolymerizing at least one conjugated diolefin with an organo alkali metal polymerization initiator in a suitable solvent thereby creating a living polymer, terminating the polymerization by the addition of hydrogen and effecting selective hydrogenation of the unsaturated double bonds in the conjugated diolefin units of the terminated polymer by contacting the polymer with hydrogen in the presence of an organo alkali metal promoter and Tebbe's reagent.

REFERENCES:
patent: 4501857 (1985-02-01), Kishimoto et al.
patent: 4673714 (1987-06-01), Kishimoto et al.
patent: 4980421 (1990-12-01), Kunio et al.
patent: 5039755 (1991-08-01), Chamberlain et al.

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