| 摘要 |
An aqueous foundry mould coating composition comprising as a suspending agent a synthetic trioctahedral mineral having the general formula: [Mg6-xLIxSi80200H4-yFy]<->M<n+> in which x may have a value of from 0 to 1.2, y may have a value of from 0 to less than 4, n<-> is the negative charge imbalance of the magnesium silicate lattice and M is an alkali metal, alkaline earth metal or onium cation. |
