Abstract
The present invention relates to the use of calcium oxalate as a filler or pigment. In particular described herein is a method of reducing the combustion residue of coated paper or cardboard products by replacing at least a part of the conventional pigments and filler needed for achieving predetermined optical properties with calcium oxalate.
| Original language | English |
|---|---|
| Patent number | EP0942099 |
| IPC | D21H 27/ 20 A I |
| Priority date | 13/03/1998 |
| Publication status | Published - 15 Sept 1999 |
| MoE publication type | H1 Granted patent |
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