Step 17 - Brevetti

Ferrophosphorus containing match head formulations     

US 5259899 A

Numero di pubblicazione	US1329537 A
Tipo di pubblicazione	Concessione
Data di pubblicazione	3 feb 1920
Data di registrazione	20 mag 1919
Data di priorità	20 mag 1919
Inventori	John R Mardick
Assegnatario originale	John R Mardick
Esporta citazione	BiBTeX, EndNote, RefMan

Estratto

Match head formulations suitable for the production of safety matches and matches that may be struck anywhere are described in which chromium compounds, sesqui-based phosphorus compounds, sulphur compounds and oxides of zinc are absent. In their place is described the use of either amorphous phosphorus or, in the case of match head formulations suitable for the production of safety matches, an iron phosphide known as ferrophosphorus. These formulations are environmentally friendly both in manufacture and use. Environmentally friendly match head formulations which may be brightly colored are also described.

Link:

http://www.google.it/patents/US5259899