Process for preparing by catalytic oxidation in oxygen-containing gas mixtures, acrolein from propylene and methacrolein from isobutylene or tertiary butanol

Granted: Apr 10, 1984 Filed: Jun 21, 1982

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.