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| Number | Title | Issue Date |
| 6641649 | Fire resistant compositions An aqueous fire resistance treatment composition consisting of water, sodium silicate, a calcined filler and a latent acid catalyst is disclosed. The composition may be applied to cardboard substrates such as corrugated cardboard. The composition is then ... | 11/04/2003 |
| 5674617 | Granulated alkali metal cyanide New alkali metal cyanide granulates based on sodium cyanide or potassium cyanide and a method for their preparation are disclosed. Commercially available alkali metal cyanide granulates consist of irregular particles; disadvantages are in particular the t... | 10/07/1997 |
| 4469517 | Silicate treatment of impure silica sands A process is provided for treating impure silica-containing sands to make them more suitable for foundry use. The sands are treated with aqueous alkali metal silicate solutions and the resulting mixture is heated before the sands are coated with a resin b... | 09/04/1984 |
| 4344797 | Shaped articles made from expanded minerals Shaped articles made from expanded minerals, obtained by solidification of a mixture of water glass, catalyst and an expanded mineral pretreated with a hydrophobizing agent which comprises substantially (a) a fatty amine of the formula ##STR1## in w... | 08/17/1982 |
