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US 2020/0046869 A1Published application
Use of zinc treated precipitated calcium carbonate in hygienic products
AssigneeOmya International AG
InventorsSteffen Ohr, Christopher Schrul
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Abstract
The present invention relates to the use of zinc treated precipitated calcium carbonate (PCC), which is obtained by slaking calcium oxide with water to obtain a calcium hydroxide slurry, carbonating the calcium hydroxide slurry, and adding a Zn2+ ion provider before and/or during the carbonation, in hygienic products, to the hygienic products comprising said zinc treated precipitated calcium carbonate as well as to a process for the preparation of such hygienic products.
Claims21
1-20. (canceled)
A method of making a hygienic product, the method comprising:
- forming a zinc-treated precipitated calcium carbonate, the forming comprising slaking calcium oxide with water to obtain a calcium hydroxide slurry,
- carbonating the calcium hydroxide slurry, and
- adding a Zn2+ ion provider before and/or during the carbonation;
- and
- applying or adding the zinc-treated precipitated calcium carbonate to a hygienic item, to form the hygienic product.
2 more elements
Dependencies are inferred from the claim text.