Inventor
ASHINA YOSHIRO
JP4 patents
Patents
4 patentsUS4582936AApr 15, 1986
Process for producing dimethylamine in preference to mono- and trimethylamines by gas phase catalytic reaction of ammonia with methanol
NITTO CHEMICAL INDUSTRY CO LTD80 citations93
US4578516AMar 25, 1986
Process for producing dimethylamine in preference to mono- or trimethylamine by vapor-phase catalytic reaction of methanol and ammonia
NITTO CHEMICAL INDUSTRY CO LTD9 citations70
US4485261ANov 27, 1984
Process for producing methylamines
NITTO CHEMICAL INDUSTRY CO LTD17 citations70
US5068442ANov 26, 1991
Method for maintaining the activity of zeolite catalysts
NITTO CHEMICAL INDUSTRY CO LTD8 citations68