Patent · US Expired

Catalytic hydrogenation of diolefin polymers

US4207409A · kind A · utility

12Cited by

4References

3Claims

0Family size

Assignee

BASF SE

Inventors

Volker Ladenberger · Schwetzingen, DE
Klaus Bronstert · Eisenberg (Pfalz), DE
Gerhard Fahrbach
Wolfgang Groh · Mannheim, DE

Key dates

Filing date	Oct 19, 1978
Grant date	Jun 10, 1980
Priority date	—
Expiry date	Oct 19, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08C19/02
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

In the hydrogenation of polymers or copolymers synthesized from dienes, or containing diene hydrocarbons, which is as a rule carried out in an organic solvent using hydrogen in the presence of conventional complex hydrogenation catalysts based on metals of sub-group 8 of the periodic table of the elements and aluminum trialkyls it is important to have from 0.5 to 50 moles of water present in the hydrogenation zone per mole of the heavy metal component of the catalyst. The hydrogenation time can be substantially reduced by this measure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.