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US 2019/0093289 A1Published application
Paper containing scalenohedral precipitated calcium carbonate (s-pcc)
AssigneePapierfabrik August Koehler SE
InventorsHeinrich FOLLMANN, Michael BOSCHERT, René BAUCH, Anja HOFMANN
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Abstract
The invention relates to paper that contains scalenohedral precipitated calcium carbonate (s-PCC) of a certain specification. The invention further relates to the user of a s-PCC having a certain specification as filler material for paper.
Claims7
Paper, containing scalenohedral precipitated calcium carbonate (s-PCC) having a grain size distribution for which
- D
-
-
- 4.3
- D
-
-
- 90
-
- times
-
-
- 100
- ≥
- 59
- and the average grain size D4.3 is in the range from 1.5 to 5.0 μm.
13 more elements
Use of scalenohedral precipitated calcium carbonate (s-PCC) having a grain size distribution for which
- D
-
-
- 4.3
- D
-
-
- 90
-
- times
-
-
- 100
- ≥
- 59
- and with an average grain size D4.3 in the range from 1.5 to 5.0 μm as filler material for paper.
13 more elements
Dependencies are inferred from the claim text.