Invention Grant
- Patent Title: Process to prepare a surface-reacted calcium carbonate implementing a weak acid, resulting products and uses thereof
- Patent Title (中): 制备实现弱酸的表面反应碳酸钙的方法，得到产物及其用途
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Application No.: US14685885Application Date: 2015-04-14
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Publication No.: US09593244B2Publication Date: 2017-03-14
- Inventor: Patrick A. C. Gane , Daniel E. Gerard
- Applicant: Omya International AG
- Applicant Address: CH Oftringen
- Assignee: Omya International AG
- Current Assignee: Omya International AG
- Current Assignee Address: CH Oftringen
- Agency: Amster, Rothstein & Ebenstein LLP
- Priority: EP09162727 20090615
- Main IPC: C08K3/26
- IPC: C08K3/26 ; C08K9/00 ; C09C1/02 ; D21H17/67 ; C09D7/12 ; C02F1/68 ; C08K9/04 ; D21H17/14 ; D21H17/69
Abstract:
The present application relates to a process for preparing a surface-reacted calcium carbonate in an aqueous environment. The process according to the present invention aims at avoiding the mandatory implementation of medium-strong to strong acids. Another aspect of the present invention is directed to an aqueous suspension of surface-reacted calcium carbonate which is obtainable by the inventive process.
Public/Granted literature
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