公开(公告)号：US10557039B2

公开(公告)日：2020-02-11

申请号：US16078466

申请日：2017-02-21

Applicant: Surfactis Technologies

Inventor： Stéphane Bejanin ,  David Portet

IPC: C09D5/00 ,  B05D1/28 ,  B05D5/00 ,  C09D127/12 ,  C23C22/03 ,  B05D1/02 ,  C23C22/02 ,  B05D5/08 ,  B05D1/30 ,  B05D1/18 ,  C09D127/16 ,  G04B31/08 ,  C09D7/20 ,  C08K5/5337

Abstract: A liquid composition comprising at least one bisphosphonic compound bearing at least one partially fluorinated, perfluorinated (PF) or perfluorpolether (PFPE) group. The bisphosphonic compound is dissolved in at least one non-flammable fluorinated solvent or in a mixture of non-flammable fluorinated solvents. A method for increasing the lipophobic or hydrophobic properties of a surface is also disclosed, wherein a liquid composition comprising at least one bisphosphonic compound bearing at least one partially fluorinated, perfluorinated (PF) or perfluorpolether (PFPE) group is applied to the surface. The method may include preliminary oxidation of the surface, if necessary; contacting the surface with the liquid composition until the bisphosphonic compound contained therein is assembled in a layer coating the surface; and drying the surface thus coated.

公开(公告)号：US20170120294A1

公开(公告)日：2017-05-04

申请号：US15311938

申请日：2015-05-20

Applicant: Centre National de la Recherche Scientifique (CNRS) ,  Surfactis Technologies

Inventor： David Portet ,  Nicolas Lefevre ,  Stéphane Bejanin ,  Abdelhafed Taleb ,  Dorra Ben Jazia Dallel ,  Olivier Favrat

IPC: B05D5/08 ,  B05D3/04 ,  B05D3/14 ,  B05D1/36 ,  B05D1/28 ,  B05D1/18 ,  B05D1/12 ,  B05D1/00 ,  B05D1/30 ,  B05D3/06 ,  B05D3/10

Abstract: The present invention relates to a process for texturing surfaces providing the latter with superhydrophobic, superoleophobic, superhydrophilic or even superoleophilic properties. This process comprises i) a step of texturing the surface (via the deposition of nanoparticles of different sizes); ii) a step of curing the surface thus textured (with a curing agent); and, optionally, a step of modifying the properties of the surface with perfluorinated (and therefore hydrophobic) molecules. This process is suitable, inter alia, for treating transparent and/or heat-sensitive materials and surfaces. Specifically, none of the steps of the process use a temperature higher than 100° C. Thus, the process of the invention is particularly suitable for treating transparent surfaces composed of non-mineral materials, such as polycarbonate for example, as it wilt affect neither their transparency nor their optical properties.

公开(公告)号：US20230219050A1

公开(公告)日：2023-07-13

申请号：US17766402

申请日：2020-10-05

Applicant: Surfactis Technologies

Inventor： Olivier Favrat ,  David Portet

IPC: B01J13/20

CPC classification number: B01J13/20

Abstract: The present invention relates to a method for preparing a dispersed suspension of nanoparticles called “raspberry nanoparticles” having a diameter of less than or equal to 130 nm, the raspberry nanoparticles being optionally functionalised with a hydrophobic organic molecule. The present invention also relates to a suspension which comprises the raspberry nanoparticles and can be produced by the method and to the use thereof for making a surface superhydrophobic or superhydrophilic, depending on whether the nanoparticles are functionalised with a hydrophobic organic molecule. Finally, the present invention relates to a method for covering the surface using a suspension according to the invention in one single step.

公开(公告)号：US10668501B2

公开(公告)日：2020-06-02

申请号：US15311938

申请日：2015-05-20

Applicant: Centre National de la Recherche Scientifique (CNRS) ,  Surfactis Technologies

Inventor： David Portet ,  Nicolas Lefevre ,  Stéphane Bejanin ,  Abdelhafed Taleb ,  Dorra Ben Jazia Dallel ,  Olivier Favrat

IPC: B05D5/00 ,  B05D5/08 ,  B05D1/18 ,  B05D1/00 ,  B05D1/12 ,  B05D1/28 ,  B05D1/30 ,  B05D1/36 ,  B05D3/04 ,  B05D3/06 ,  B05D3/10 ,  B05D3/14

Abstract: The present invention relates to a process for texturing surfaces providing the latter with superhydrophobic, superoleophobic, superhydrophilic or even superoleophilic properties. This process comprises i) a step of texturing the surface (via the deposition of nanoparticles of different sizes); ii) a step of curing the surface thus textured (with a curing agent); and, optionally, iii) a step of modifying the properties of the surface with perfluorinated (and therefore hydrophobic) molecules. This process is suitable, inter alia, for treating transparent and/or heat-sensitive materials and surfaces. Specifically, none of the steps of the process use a temperature higher than 100° C. Thus, the process of the invention is particularly suitable for treating transparent surfaces composed of non-mineral materials, such as polycarbonate for example, as it will affect neither their transparency nor their optical properties.

公开(公告)号：US20190048204A1

公开(公告)日：2019-02-14

申请号：US16078466

申请日：2017-02-21

Applicant: Surfactis Technologies

Inventor： Stéphane Bejanin ,  David Portet

IPC: C09D5/00 ,  C09D7/20

Abstract: The invention relates to a liquid composition characterised in that it contains at least one bisphosphonic compound bearing at least one partially fluorinated, perfluorinated (PF) or perfluorpolyether (PFPE) group, and in that the bisphosphonic compound is dissolved in at least one non-flammable fluorinated solvent.