Removing odorous formaldehyde from stabilized shaped polyoxymeth

Details Removing odorous formaldehyde from stabilized shaped polyoxymeth Removing odorous formaldehyde from stabilized shaped polyoxymeth

1975-06-20

1977-10-25

Phynes, Lucille M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

526 1, 528480, 528499, C08G 228

Patent

active

040555470

ABSTRACT:
Method of removing odorous formaldehyde from stabilized shaped polyoxymethylenes in which an inert gas is caused to flow over stabilized and shaped solid polyoxymethylenes at elevated temperatures not high enough to cause sticking or fusion of the polyoxymethylene, until substantially all of the volatile formaldehyde has been removed.

REFERENCES:
patent: 3477993 (1969-11-01), Alsup et al.
patent: 3488303 (1970-01-01), Heinz
patent: 3718630 (1973-02-01), Leverett

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