Process for the separation of polyurethane foam hydrolysates int

Details Process for the separation of polyurethane foam hydrolysates int Process for the separation of polyurethane foam hydrolysates int

1979-12-19

1981-08-04

Cockeram, H. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

521174, 521914, 568621, C08G 1848, C08G 1814

Patent

active

042823676

ABSTRACT:
The instant invention is directed to a process for the separation of polyurethane hydrolysates into polyamines and polyols which can be used again for the production of polyurethanes, comprising introducing gaseous hydrogen chloride into the hydrolysate mixture which has optionally been diluted with an inert solvent, and removing the precipitated amine salt by filtration, characterized in that

REFERENCES:
patent: 4035314 (1977-07-01), Lohr et al.

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