IP Library › Granted Patent US 4,910,240
Granted Patent Utility
US 4,910,240 · App. 07/076,969

Thermally stable diphosphonate-type flame retardant additive for plastics

Inventors: Edward D. Weil, John Tomko
Patented Case View Patent ↗
Granted: Mar 20, 1990 Filed: Jul 23, 1987
Inventors
Edward D. Weil
John Tomko
Assignee (at issue)
Akzo America Inc.

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Quick Facts
Patent No.
US 4,910,240
App. No.
07/076,969
Filed
1987-07-23
Granted
1990-03-20
Kind
A