Invention Grant
- Patent Title: Method for improving opacity
- Patent Title (中): 改善不透明度的方法
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Application No.: US13380683Application Date: 2010-06-29
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Publication No.: US08821628B2Publication Date: 2014-09-02
- Inventor: Patrick A. C. Gane , Matthias Buri , Samuel Rentsch
- Applicant: Patrick A. C. Gane , Matthias Buri , Samuel Rentsch
- Applicant Address: CH Oftringen
- Assignee: Omya International AG
- Current Assignee: Omya International AG
- Current Assignee Address: CH Oftringen
- Agency: Amster, Rothstein & Ebenstein LLP
- Priority: EP09164353 20090701
- International Application: PCT/IB2010/052963 WO 20100629
- International Announcement: WO2011/001374 WO 20110106
- Main IPC: C09C1/02
- IPC: C09C1/02 ; D21H19/36 ; D21H19/38
Abstract:
The present invention relates to a process for preparing an aqueous suspension of dispersed calcium carbonate, wherein the resulting coating of said suspension provides opaque properties or has a specific light scattering coefficient S. The invention further relates to compositions of such suspensions of dispersed calcium carbonate and to its use in the field of paper coatings and paper mass fillings as well as paints and plastic coatings.
Public/Granted literature
- US20120097069A1 METHOD FOR IMPROVING OPACITY Public/Granted day:2012-04-26
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