C - Chemistry – Metallurgy – 09 – C
Patent
C - Chemistry, Metallurgy
09
C
C09C 1/42 (2006.01)
Patent
CA 2717098
This invention relates to particles with bipolar topospecific characteristics and process of preparation thereof. It is an object of the present invention is to provide a particle with bipolar topospecific characteristics with two spatially distinct regions on its surface having non-identical surface characteristics. It has been found that particles prepared by topospecific treatment of an asymmetric clay precursor with an organyl or an organoheteryl group attached to coordinating cations of one of the surface sheets, provides a particle with bipolar topospecific characteristics with two spatially distinct regions on its surface having non-identical surface characteristics.
La présente invention concerne des particules présentant des caractéristiques topospécifiques bipolaires et leur procédé de préparation. Un objet de la présente invention consiste à proposer une particule présentant des caractéristiques topospécifiques bipolaires et comportant sur sa surface deux régions spatialement distinctes dotées de caractéristiques de surface non identiques. Il a été découvert que les particules préparées par le traitement topospécifique dun précurseur argile asymétrique avec un groupe organyle ou organohétéryle attaché à des cations de coordination dune des feuilles de surface, procure une particule présentant des caractéristiques topospécifiques bipolaires et comportant sur sa surface deux régions spatialement distinctes dotées de caractéristiques de surface non identiques.
Bhattacharya Suman K.
Bhattacharyya Tapomay
Dastidar Sudipta G.
Naik Vijay M.
Srivastava Anuj
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Plc Unilever
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