公开(公告)号：WO2008043790A3

公开(公告)日：2008-10-16

申请号：PCT/EP2007060778

申请日：2007-10-10

Applicant: BASF SE ,  KARPOV ANDREY ,  HIBST HARTMUT ,  KISSEL JUTTA ,  BECHTLOFF BERND ,  VOSS HARTWIG ,  SCHIERLE-ARNDT KERSTIN ,  ANDRE VALERIE

Inventor： KARPOV ANDREY ,  HIBST HARTMUT ,  KISSEL JUTTA ,  BECHTLOFF BERND ,  VOSS HARTWIG ,  SCHIERLE-ARNDT KERSTIN ,  ANDRE VALERIE

IPC: C01G1/02 ,  C01G3/02 ,  C01G9/02 ,  C01G23/053 ,  C01G25/02 ,  C01G45/02 ,  C01G49/02 ,  C01G51/04 ,  C01G53/04 ,  C09C1/04

CPC classification number: C09C1/043 ,  A61K8/0241 ,  A61K8/27 ,  A61K8/86 ,  A61K2800/614 ,  A61Q17/04 ,  B82Y30/00 ,  C01G1/02 ,  C01G3/02 ,  C01G9/02 ,  C01G23/053 ,  C01G25/02 ,  C01G45/02 ,  C01G49/02 ,  C01G51/04 ,  C01G53/04 ,  C01P2004/64

Abstract: The present invention relates to methods for the production of surface-modified, nanoparticulate particles of at least one metal oxide, metal hydroxide and/or metal oxyhydroxide and of aqueous suspensions of said particles. The invention also relates to the surface-modified, nanoparticulate particles of at least one metal oxide, metal hydroxide and/or metal oxyhydroxide and to the aqueous suspensions of said particles which can be obtained by these methods and their use for cosmetic sunscreen preparations, as stabilisers in plastics and as active antimicrobial active substance.

Abstract translation: 本发明涉及用于至少一种金属氧化物，金属氢氧化物和/或氢氧化金属氧化物和这些颗粒的水性悬浮液的表面改性的纳米颗粒的制备方法。 此外，本发明涉及可获得根据这些方法，至少一个金属氧化物，金属氢氧化物和/或氢氧化金属氧化物和这些颗粒和其用于化妆品防晒制剂中的水性悬浮液的表面改性的纳米粒子，在塑料中作为稳定剂和作为抗菌活性成分。

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

IPC: C09C3/10 ,  A61K8/27 ,  A61Q17/04 ,  C08K3/22 ,  C09C1/04 ,  C09C1/24

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.

公开(公告)号：NZ566962A

公开(公告)日：2010-03-26

申请号：NZ56696206

申请日：2006-09-21

Applicant: BASF SE

Inventor： HIBST HARTMUT ,  RIEGER JENS ,  KISSEL JUTTA ,  ANDRE VALERIE ,  MC KEE GRAHAM EDMUND

IPC: C08K3/22 ,  A61K8/27 ,  C09C1/04 ,  C09C1/24 ,  C09C3/10

Abstract: A method of producing an aqueous suspension of surface-modified nanoparticulate particles of at least one metal oxide, metal hydroxide and/or metal oxide hydroxide, where the metal or metals are chosen from aluminum, magnesium, cerium, iron, manganese, cobalt, nickel, titanium, zinc and zirconium, wherein a) an aqueous solution of at least one metal salt of the above-mentioned metals is mixed with an aqueous solution of at least one polymer at a pH value in the range from 3 to 13 and at a temperature from 0 to 50 degrees C and b) this mixture is then heated at a temperature from 60 to 300 degrees C, at which the surface-modified nanoparticulate particles precipitate. Also disclosed is a method of producing a powder composition in a similar manner including c) the precipitated particles are separated from the aqueous reaction mixture and d) the nanoparticulate particules are then dried. Also disclosed is the use of the said powder for UV protection in cosmetic sunscreen preparations, or as stabilizers in plants, or as an antimicrobial active ingredient.