Invention Grant
- Patent Title: Precipitated calcium carbonate with improved resistance to structural breakdown
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Application No.: US15744187Application Date: 2016-07-29
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Publication No.: US10676620B2Publication Date: 2020-06-09
- Inventor: Holger Spiegel , Wolfgang Kreuger , Mathieu Skrzypczak , Joe Wenk , Michael Dalton , Aaro Salonen , Marc Maurer , Patrick A. C. Gane , Catherine Jean Ridgway
- Applicant: Omya International AG
- Applicant Address: CH Oftringen
- Assignee: OMYA INTERNATIONAL AG
- Current Assignee: OMYA INTERNATIONAL AG
- Current Assignee Address: CH Oftringen
- Agency: Fay Sharpe LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6a033b56
- International Application: PCT/EP2016/068188 WO 20160729
- International Announcement: WO2017/021313 WO 20170209
- Main IPC: C09C1/02
- IPC: C09C1/02 ; C01F11/18 ; B01J10/00 ; B01F3/04 ; D21H19/38 ; D21H21/18
Abstract:
The present invention is directed to a process for producing precipitated calcium carbonate with improved resistance to structural breakdown, wherein the milk of lime is carbonated in the presence of at least one gas other than carbon dioxide, or the carbonation is carried out in the presence of a static gas bubble comminution unit as well as to precipitated calcium carbonate obtained by such a process.
Public/Granted literature
- US20180201789A1 PRECIPITATED CALCIUM CARBONATE WITH IMPROVED RESISTANCE TO STRUCTURAL BREAKDOWN Public/Granted day:2018-07-19
Information query
