Inventor

ZENNER KARL-FRIEDRICH

2 patents

Patents

2 patents

US3954567AMay 4, 1976

Evaporating solutions which contain phosgene in a vacuum liquid ring pump

BAYER AG19 citations75

US3947484AMar 30, 1976

Continuous prephosgenation process for the production of organic isocyanates

BAYER AG18 citations67