Invention Grant
US09260610B2 Use of 2-amino-2-methyl-1-propanol as additive in aqueous suspensions of calcium carbonate comprising materials
有权
2-氨基-2-甲基-1-丙醇作为添加剂在含碳酸钙的含水悬浮液中的应用
- Patent Title: Use of 2-amino-2-methyl-1-propanol as additive in aqueous suspensions of calcium carbonate comprising materials
- Patent Title (中): 2-氨基-2-甲基-1-丙醇作为添加剂在含碳酸钙的含水悬浮液中的应用
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Application No.: US13386786Application Date: 2010-08-05
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Publication No.: US09260610B2Publication Date: 2016-02-16
- Inventor: Matthias Buri , Samuel Rentsch , Patrick Arthur Charles Gane
- Applicant: Matthias Buri , Samuel Rentsch , Patrick Arthur Charles Gane
- Applicant Address: CH Oftringen
- Assignee: Omya International AG
- Current Assignee: Omya International AG
- Current Assignee Address: CH Oftringen
- Agency: Amster, Rothstein & Ebenstein LLP
- Priority: EP09167246 20090805
- International Application: PCT/IB2010/053546 WO 20100805
- International Announcement: WO2011/016003 WO 20110210
- Main IPC: H01B1/12
- IPC: H01B1/12 ; C07C215/00 ; C09C1/02 ; H01B1/06
Abstract:
Use of 2-amino-2-methyl-1-propanol (AMP) as an additive in an aqueous suspension, containing from 25 to 62 vol. % of at least one calcium carbonate-comprising material and having a pH of between 8.5 and 11, to increase the suspension pH by at least 0.3 pH units, the AMP being added to said suspension in an amount of from 500 to 15000 mg per litre of the aqueous phase of the suspension, wherein the suspension conductivity change is maintained to within 100 μS/cm/pH unit.
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