Patents by Inventor Laurent Michau
Laurent Michau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9403987Abstract: Disclosed is a composition comprising a charged particle of volume 5 nm3 to 50 million nm3 preferably having an inorganic core of SiO2, AI2O3, and/or TiO2, or a core essentially consisting of an organic pigment and/or pigment derivative, and a counter ion which is separable from the particle and is not covalently linked to the particle, said counter ion comprising a silicon atom which is directly bound to a carbon atom. Preferably, said charged particle comprises a dye attached to said inorganic core and said counter ion comprises a (poly)siloxane moiety linked via suitable bridge members to a quaternary, positively charged, nitrogen or phosphorus atom, or to a moiety carrying an anionic functional group. Said composition may be used e.g. in the form of a homogenous dispersion in an electrophoretic display.Type: GrantFiled: June 11, 2010Date of Patent: August 2, 2016Assignee: BASF SEInventors: Pascal Hayoz, Bernd Lamatsch, Achim Lamatsch, Margherita Fontana, Stephan Burkhardt, Laurent Michau, Urs Lehmann, Philippe Bugnon
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Patent number: 8877954Abstract: The present invention discloses functionalized nanoparticles comprising on the surface a covalently bound radical of the formula (I) wherein the nanoparticles are SiO2, Al2O3 or mixed SiO2 and Al2O3 nanoparticles, and wherein the general symbols are as defined in claim 1. These functionalized nanoparticles are for example useful as stabilizers and/or compatibilizers in organic materials, or as photoinitiators in pre-polymeric or pre-crosslinking formulations, or as reinforcer of coatings and improver of scratch resistance in coating compositions for surfaces.Type: GrantFiled: June 28, 2013Date of Patent: November 4, 2014Assignee: BASF SEInventors: Thomas Giesenberg, Andreas Muhlebach, Tunja Jung, Francois Rime, Laurent Michau, Martin Muller, Didier Bauer
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Publication number: 20130296453Abstract: The present invention discloses functionalized nanoparticles comprising on the surface a covalently bound radical of the formula (I) wherein the nanoparticles are SiO2, Al2O3 or mixed SiO2 and Al2O3 nanoparticles, and wherein the general symbols are as defined in claim 1. These functionalized nanoparticles are for example useful as stabilizers and/or compatibilizers in organic materials, or as photoinitiators in pre-polymeric or pre-crosslinking formulations, or as reinforcer of coatings and improver of scratch resistance in coating compositions for surfaces.Type: ApplicationFiled: June 28, 2013Publication date: November 7, 2013Inventors: Thomas GIESENBERG, Andreas MUHLEBACH, Tunja JUNG, Francois RIME, Laurent MICHAU, Martin MULLER, Didier BAUER
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Patent number: 8456733Abstract: The present invention discloses the use of functionalized particles as electrophoretic displaying particles, wherein the functionalized particles are SiO2, Al2O3 or mixed SiO2 and Al2O3 particles comprising, covalently bound to an oxygen atom on the surface, a radical of formula (1), wherein R1 and R2 are independently of each other hydrogen, particle surface-O—, or a substituent, n is 1, 2, 3, 4, 5, 6, 7 or 8, B is the direct bond or a bridge member, and D is the residue of an organic chromophore.Type: GrantFiled: October 16, 2006Date of Patent: June 4, 2013Assignee: BASF SEInventors: Margherita Fontana, Gabriele Baisch, Thomas Giesenberg, Laurent Michau, Reinhold Öhrlein, Andreas Mühlebach
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Publication number: 20120229884Abstract: Disclosed is a composition comprising a charged particle of volume 5 nm3 to 50 million nm3 preferably having an inorganic core of SiO2, AI2O3, and/or TiO2, or a core essentially consisting of an organic pigment and/or pigment derivative, and a counter ion which is separable from the particle and is not covalently linked to the particle, said counter ion comprising a silicon atom which is directly bound to a carbon atom. Preferably, said charged particle comprises a dye attached to said inorganic core and said counter ion comprises a (poly)siloxane moiety linked via suitable bridge members to a quaternary, positively charged, nitrogen or phosphorus atom, or to a moiety carrying an anionic functional group. Said composition may be used e.g. in the form of a homogenous dispersion in an electrophoretic display.Type: ApplicationFiled: June 11, 2010Publication date: September 13, 2012Applicant: BASF SEInventors: Pascal Hayoz, Bernd Lamatsch, Achim Lamatsch (Sole Heir), Margherita Fontana, Stephan Burkhardt, Laurent Michau, Urs Lehmann, Philippe Bugnon
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Publication number: 20100178512Abstract: A process for modifying the surface of an inorganic or organic substrate with strongly adherent nanoparticles is described, providing to the surface modified substrate durable effects like hydrophobicity, hydrophilicity, electrical conductivity, magnetic properties, flame retardance, color, adhesion, roughness, scratch resistance, UV-absorbance, antimicrobial properties, antifouling properties, antiprotein properties, antistatic properties, antifog properties, release properties. In this process, an optional first step a) a low-temperature plasma, ozonization, high energy irradiation, corona discharge or a flame is caused to act on the inorganic or organic substrate, and in a second step b) one or more defined nanoparticles or mixtures of defined nanoparticles with monomers, containing at least one ethylenically unsaturated group, or solutions, suspensions or emulsions of the afore-mentioned substances, are applied, preferably at normal pressure, to the inorganic or organic substrate.Type: ApplicationFiled: November 26, 2007Publication date: July 15, 2010Applicant: CIBA CORPORATIONInventors: Thomas Giesenberg, Pascal Hayoz, Thomas Vogel, Andreas Muhlebach, Markus Frey, Stephan Ilg, Rachel Kohli Steck, Laurent Michau, Francois Rime
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Publication number: 20090296195Abstract: The present invention discloses the use of functionalized particles as electrophoretic displaying particles, wherein the functionalized particles are SiO2, Al2O3 or mixed SiO2 and Al2O3 particles comprising, covalently bound to an oxygen atom on the surface, a radical of formula (1), wherein R1 and R2 are independently of each other hydrogen, particle surface-O—, or a substituent, n is 1, 2, 3, 4, 5, 6, 7 or 8, B is the direct bond or a bridge member, and D is the residue of an organic chromophore.Type: ApplicationFiled: October 16, 2006Publication date: December 3, 2009Inventors: Margherita Fontana, Gabriele Baisch, Thomas Giesenberg, Laurent Michau, Reinhold Öhrlein, Andreas Mühlebach
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Publication number: 20090099282Abstract: The present invention discloses functionalized nanoparticles comprising on the surface a covalently bound radical of formula (1), wherein the nanoparticles are SiO2, Al2O3 or mixed SiO2 and Al2O3 nanoparticles, R1 and R2 are independently of each other hydrogen, nanoparticle surface-O—, or a substituent, n is 1, 2, 3, 4, 5, 6, 7 or 8, and Y is a radical of formula —B1-D1 (2a), wherein B1 is the direct bond or a bridge member, and D1 is a radical of a cationic dye, a radical of a phthalocyanine dye which carries no water-solubilizing group, or a radical of a fluorescent dye selected from the group consisting of coumarins, benzocoumarins, xanthenes, benzo[a]xanthenes, benzo[b]xanthenes, benzo[c]xanthenes, phenoxazines, benzo[a]phenoxazines, benzo[b]phenoxazines, benzo[c]phenoxazines, napthalimides, naphtholactams, azlactones, methines, oxazines, thiazines, diketopyrrolopyrroles, quinacridones, benzoxanthenes, thio-epindolines, lactamimides, diphenylmaleimides, acetoacetamides, imidazothiazines, benzanthrones, pType: ApplicationFiled: May 17, 2006Publication date: April 16, 2009Inventors: Martin Muller, Andreas Muhlebach, Thomas Giesenberg, Didier Bauer, Thomas Ruch, Francois Rime, Leonhard Feiler, Roman Lenz, Laurent Michau
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Publication number: 20090076198Abstract: The present invention discloses functionalized nanoparticles comprising on the surface a covalently bound radical of the formula (I) wherein the nanoparticles are SiO2, Al2O3 or mixed SiO2 and Al2O3 nanoparticles, and wherein the general symbols are as defined in claim 1. These functionalized nanoparticles are for example useful as stabilizers and/or compatibilizers in organic materials, or as photoinitiators in pre-polymeric or pre-crosslinking formulations, or as reinforcer of coatings and improver of scratch resistance in coating compositions for surfaces.Type: ApplicationFiled: October 17, 2005Publication date: March 19, 2009Inventors: Thomas Giesenberg, Andreas Muhlebach, Tunja Jung, Francois Rime, Laurent Michau, Martin Muller, Didier Bauer