Removal of catalytic residues from hydrogenated thermoplastic or

Details Removal of catalytic residues from hydrogenated thermoplastic or Removal of catalytic residues from hydrogenated thermoplastic or

1977-02-25

1978-07-04

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

260816R, 526 25, 526 26, 526340, C08F 608, C08C 204

Patent

active

040989917

ABSTRACT:
A process for the removal of catalytic residues from hydrogenated thermoplastic or elastomeric polymers is achieved by treating the residue with an amine compound. The amine compound is selected from the class consisting of an HCl salt of an amine or a diamine having an alkyl group containing from 1 to 12 carbon atoms, a cycloalkyl group containing from 4 to 12 carbon atoms, an aryl group containing from 6 to 12 carbon atoms, and combinations thereof; a substituted glyoxime wherein the substituted group is selected from the class consisting of an alkyl having from 1 to 12 carbon atoms, a cycloalkyl having from 4 to 6 carbon atoms, an aryl having from 6 to 12 carbon atoms, and combinations thereof; and the heterocyclic nitrogen compounds of pyrrole and pyridine.

REFERENCES:
patent: 3037011 (1962-05-01), Leibson et al.
patent: 3071566 (1963-01-01), Cassar et al.
patent: 3258456 (1966-06-01), Nelson
patent: 3780138 (1973-12-01), Hassell et al.

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