Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Preparation of quinonediimines from phenylenediamines using hydrogen peroxide and a catalyst

Preparation of quinonediimines from phenylenediamines using hydrogen peroxide and a catalyst

US Patent 6271420 · Granted Aug 7, 2001

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Preparation of quinonediimines from phenylenediamines using a hypochlorite as an2000
Preparation of quinoneimines from hydroxyphenylamines using hydrogen peroxide an2000
Preparation of quinonediimines from phenylenediamines using oxygen and a metal o2000
Formation of quinonedimines from phenylenediamines by catalytic oxidation1999