Isocyanate residue purification

Details Isocyanate residue purification Isocyanate residue purification

1997-10-31

1999-10-05

Sergent, Rabon

Organic compounds -- part of the class 532-570 series

Organic compounds

Isocyanate esters

210770, C07C26320, C07C26318

Patent

active

059627280

ABSTRACT:
The present invention relates to a process for isolating aliphatic isocyanate monomer(s) from a liquid or viscous paste composition comprising polymeric isocyanate residues and the aliphatic isocyanate monomer(s), and for isolating solid polymeric isocyanate residue from said composition. Also disclosed is the aliphatic isocyanate monomer(s) and the solid polymeric isocyanate byproduct produced by this process.

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