Invention Grant
US08263819B2 Method for manufacturing a metallic hydroxide and oxide powder which is self-dispersing in water, powder and aqueous dispersion obtained, uses thereof
有权
在水中自分散的金属氢氧化物和氧化物粉末的制造方法，粉末和水分散体的制备方法
- Patent Title: Method for manufacturing a metallic hydroxide and oxide powder which is self-dispersing in water, powder and aqueous dispersion obtained, uses thereof
- Patent Title (中): 在水中自分散的金属氢氧化物和氧化物粉末的制造方法，粉末和水分散体的制备方法
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Application No.: US12522353Application Date: 2007-12-11
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Publication No.: US08263819B2Publication Date: 2012-09-11
- Inventor: Yves Kensicher , Jean Moro , Jean-Marc Suau
- Applicant: Yves Kensicher , Jean Moro , Jean-Marc Suau
- Applicant Address: FR Genay
- Assignee: Coatex S.A.S.
- Current Assignee: Coatex S.A.S.
- Current Assignee Address: FR Genay
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0700086 20070109
- International Application: PCT/IB2007/003933 WO 20071211
- International Announcement: WO2008/084317 WO 20080717
- Main IPC: A62D3/33
- IPC: A62D3/33
Abstract:
The invention resides in a method for manufacturing a metallic hydroxide-based and metallic oxide-based powder, which is self-dispersing in water, characterized in that a metallic oxide powder is partially treated with a polymer in the form of an aqueous emulsion and/or solution, in such a way that the level of metallic hydroxide by dry weight within said treated powder is less than 99% of its total weight, and in that said polymer is a water-soluble homopolymer or copolymer containing at least one vinylic monomer. In one particular variant, the polymer is a water-soluble copolymer containing a vinylic monomer and a non-ionic monomer, and the metal is calcium and/or magnesium. The invention also pertains to the powders obtained, their uses in aqueous suspensions, in treating waste, as a chemical additive, or as a soil amendment.
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