IP Library › Granted Patent US 4,563,499
Granted Patent Utility
US 4,563,499 · App. 06/722,538

Extraction of polyoxyalkylene surfactants for phenolic foam stabilization

Inventors: Richard L. Frentzel, Ernest K. Moss
Patented Case View Patent ↗
Granted: Jan 7, 1986 Filed: Apr 12, 1985
Inventors
Richard L. Frentzel
Ernest K. Moss
Assignee (at issue)
Celotex Corporation

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Quick Facts
Patent No.
US 4,563,499
App. No.
06/722,538
Filed
1985-04-12
Granted
1986-01-07
Kind
A