Invention Grant
- Patent Title: Process for the control of pitch
- Patent Title (中): 球场控制过程
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Application No.: US13068168Application Date: 2011-05-04
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Publication No.: US08372244B2Publication Date: 2013-02-12
- Inventor: Patrick A. C. Gane , Joachim Schölkopf , Daniel Gantenbein
- Applicant: Patrick A. C. Gane , Joachim Schölkopf , Daniel Gantenbein
- Applicant Address: CH Oftringen
- Assignee: Omya Development AG
- Current Assignee: Omya Development AG
- Current Assignee Address: CH Oftringen
- Agency: Amster, Rothstein & Ebenstein LLP
- Priority: EP07005853 20070321
- Main IPC: D21H21/02
- IPC: D21H21/02 ; D21H17/67 ; D21H17/69 ; C09C1/02
Abstract:
The present invention relates to a process for the control of pitch in an aqueous medium by adding surface-reacted natural calcium carbonate or an aqueous suspension comprising surface-reacted calcium carbonate and having a pH greater than 6.0 measured at 20° C., to the medium, wherein the surface-reacted calcium carbonate is a reaction product of natural calcium carbonate with carbon dioxide and one or more acids, the use of the surface-reacted natural calcium carbonate for pitch control, as well as to a combination of a surface-reacted natural calcium carbonate and talc for pitch control, and the resulting composites.
Public/Granted literature
- US20110209841A1 Process for the control of pitch Public/Granted day:2011-09-01
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