IP Library Granted Patent US 4,923,939
Granted Patent Utility
US 4,923,939 · App. 07/312,151

Ring opening polymerization with organophosphonium and organoarsonium metathesis catalysts

Inventor: Brian L. Goodall
Patented Case View Patent ↗
Granted: May 8, 1990 Filed: Feb 21, 1989
Inventor
Brian L. Goodall
Assignee (at issue)
B. F. Goodrich Company

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Quick Facts
Patent No.
US 4,923,939
App. No.
07/312,151
Filed
1989-02-21
Granted
1990-05-08
Kind
A