IP Library › Granted Patent US 4,981,948
Granted Patent Utility
US 4,981,948 · App. 07/389,300

Zinc-containing solid catalyst, process of preparing same and process for preparing polyalkylene carbonate

Inventors: Hideshi Kawachi, Shuji Minami, John N. Armor, Andrzej Rokicki, Beatrice K. Stein
Patented Case View Patent ↗
Granted: Jan 1, 1991 Filed: Aug 3, 1989
Inventors
Hideshi Kawachi
Shuji Minami
John N. Armor
Andrzej Rokicki
Beatrice K. Stein
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.

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Quick Facts
Patent No.
US 4,981,948
App. No.
07/389,300
Filed
1989-08-03
Granted
1991-01-01
Kind
A