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Home › Process for the manufacture of 4,4'-diphenyl-methane diisocyanate and a mixture of diphenyl-methane diisocyanate isomers containing a small amount of uretdiones and hydrolyzable chlorine

Process for the manufacture of 4,4'-diphenyl-methane diisocyanate and a mixture of diphenyl-methane diisocyanate isomers containing a small amount of uretdiones and hydrolyzable chlorine

US Patent 4294666 · Granted Oct 13, 1981

Assignee

Basf Se

Inventors

Hans J. Astheimer (1 patents)
Horst Brandtstaedter (1 patents)
Rainer Ohlinger (16 patents)
Willy van Pee (5 patents)
Jaak Van Steen (1 patents)
Friedrich Sauer (11 patents)
Rudolf Schmidt (38 patents)
Siegfried Krueger (1 patents)

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