-
公开(公告)号：MX2008012190A
公开(公告)日：2008-10-02
申请号：MX2008012190
申请日：2007-04-03
Applicant: BASF SE
Inventor： MITULLA KONRAD , KEE GRAHAM EDMUND MC , ARMITT CHRIS DE
Abstract: Se propone un proceso para la coagulación de una dispersión polimérica acuosa, el cual comprende, durante o después de a coagulación, convertir la sal de coagulación disuelta en una forma insoluble.
-
公开(公告)号：AU2006296647A1
公开(公告)日：2007-04-05
申请号：AU2006296647
申请日：2006-09-21
Applicant: BASF SE
Inventor： RIEGER JENS , KISSEL JUTTA , HIBST HARTMUT , ANDRE VALERIE , KEE GRAHAM EDMUND MC
Abstract: Preparation of an aqueous suspension of surface-modified nano-particles of a metallic oxide, a metal hydroxide and/or a metallic oxide hydroxide, where the metal is aluminum, magnesium, cerium, iron, titanium, zinc and zirconium, comprises mixing an aqueous solution of a metal salt with an aqueous solution of a polymer at a pH of 3-13 and at a temperature (T1) of 0-50[deg]C and precipitating the surface-modified nanoparticles of the metallic oxide, metal hydroxide and/or the metallic oxide hydroxide by heating the mixture at a temperature (T2) of 60-300[deg]C. Independent claims are included for: (1) a method for the production of a powdered surface-modified nanoparticles of metallic oxide, metal hydroxide and/or metallic oxide hydroxide, comprising mixing an aqueous solution of a metal salt with an aqueous solution of a polymer at a pH value of 3-13 and at a temperature (T1) of 0-50[deg]C, precipitating the surface-modified nano-particle of the metallic oxide, metal hydroxide and/or the metallic oxide hydroxide by heating the mixture at 60-300[deg]C, isolating the precipitated nanoparticles from the aqueous reaction mixture, and drying the nanoparticles; and (2) a powdered surface-modified nanoparticles of a metallic oxide, metal hydroxide, and/or a metallic oxide hydroxide, having a coating with polyasparaginic acid, with a BET surface area of 25-500 m 2>/g.
-
Search Results
2
records
(took 0.015 seconds)
