Method for removing AlCl.sub.3 -based catalyst residues from pol

Details Method for removing AlCl.sub.3 -based catalyst residues from pol Method for removing AlCl.sub.3 -based catalyst residues from pol

1990-08-03

1992-12-29

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

526237, 526238, C08F 608

Patent

active

051752476

ABSTRACT:
A method is described for removing catalyst residues comprising AlCl.sub.3 and/or its complexes from polymer products deriving from the (co)polymerization of olefinic cuts, the method comprising bringing the polymerized mass into contact with organometallic compounds, treating the resultant mixture with water or with aqueous acid or basic solutions, and separating the organic phase, which is substantially free of inorganic residues.

REFERENCES:
patent: 3929747 (1975-12-01), Kudo et al.
patent: 4151338 (1979-04-01), Hasser et al.

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