Patents by Inventor Margherita Fontana

Margherita Fontana 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).

  • Patent number: 10431745
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: October 1, 2019
    Assignee: BASF SE
    Inventors: Mathias Duggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G. R. Turbiez, Beat Schmidhalter, Jean-Charles Flores
  • Patent number: 10224484
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: March 5, 2019
    Assignee: BASF SE
    Inventors: Mathias Duggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Frederic Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G. R. Turbiez, Beat Schmidhalter, Jean-Charles Flores
  • Publication number: 20190027690
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Application
    Filed: November 30, 2016
    Publication date: January 24, 2019
    Applicant: BASF SE
    Inventors: Mathias Duggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Frederic Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G.R. Turbiez, Beat Schmidhalter, Jean-Charles Flores
  • Publication number: 20180331296
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Applicant: BASF SE
    Inventors: Mathias Duggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G. R. Turbiez, Beat Schmidhalter, Jean-Charles Flores
  • Patent number: 9893288
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: February 13, 2018
    Assignee: BASF SE
    Inventors: Mathias Duggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G. R. Turbiez, Beat Schmidhalter, Jean-Charles Flores
  • Publication number: 20170148991
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 25, 2017
    Applicant: BASF SE
    Inventors: Mathias Duggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Frederic Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G.R. Turbiez, Beat Schmidhalter, Jean-Charles Flores
  • Publication number: 20170148992
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Application
    Filed: November 30, 2016
    Publication date: May 25, 2017
    Applicant: BASF SE
    Inventors: Mathias Duggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Frederic Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G.R. Turbiez, Beat Schmidhalter, Jean-Charles Flores
  • Patent number: 9403987
    Abstract: 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: Grant
    Filed: June 11, 2010
    Date of Patent: August 2, 2016
    Assignee: BASF SE
    Inventors: Pascal Hayoz, Bernd Lamatsch, Achim Lamatsch, Margherita Fontana, Stephan Burkhardt, Laurent Michau, Urs Lehmann, Philippe Bugnon
  • Patent number: 9018397
    Abstract: The present invention relates to compounds of the formula I wherein the substituents are as defined in claim 1, and their use as organic semiconductor in organic devices, like diodes, organic field effect transistors and/or a solar cells. The compounds of the formula I have excellent solubility in organic solvents. High efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when said compounds are used in semiconductor devices or organic photovoltaic (PV) devices (solar cells).
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: April 28, 2015
    Assignee: BASF SE
    Inventors: Zhimin Hao, Beat Schmidhalter, Jean-Luc Budry, Margherita Fontana, Matheiu G. R. Turbiez, Frank Bienewald, Mathias Duggeli, Oliver Frederic Aebischer, Pascal Hayoz, Marta Fondrodona Turon
  • Publication number: 20150056746
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Application
    Filed: October 30, 2014
    Publication date: February 26, 2015
    Applicant: BASF SE
    Inventors: Mathias Düggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Frédéric Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G.R. Turbiez, Beat Schmidhalter, Jean-Charles Flores
  • Patent number: 8912305
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: December 16, 2014
    Assignee: BASF SE
    Inventors: Mathias Düggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Frédéric Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G. R. Turbioz, Beat Schmidhalter, Jean-Charles Flores
  • Patent number: 8674006
    Abstract: Described is a pigment dispersion which is useful for electrophoretic displays comprising ?) a bis-oxodihydro-indolylene-benzodifuranone colorant of the Formula (I) wherein the substituents are defined as in claim 1, ?) a specific polymeric dispersant, and ?) a solvent which is suitable for dispersions used in electrophoretic displays. Also described are novel colourants and dispersants.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: March 18, 2014
    Assignee: BASF SE Ludwigshafen
    Inventors: Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas Gernandt, Dario Perera, Thomas Ruch, Christoph Krebs, Thomas Eichenberger, Achim Lamatsch
  • Patent number: 8610998
    Abstract: The present invention relates to the preparation and use of (colored) organic particles carrying electric charge as electrophoretic (image) displaying particles, to electrophoretic dispersions comprising the organic particles carrying electric charge, electrophoretic (image) devices (especially displays) comprising the colored organic particles carrying electric charge, to the novel functionalized particles, and to their use. The particles are obtainable according to a method represented by the reaction scheme as given in FIG. 1.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: December 17, 2013
    Assignee: BASF SE
    Inventors: Gabriele Baisch, Reinhold Öhrlein, Peter Simmendinger, Gerardus De Keyzer, Margherita Fontana, Vilas N. Mumbaikar
  • Patent number: 8456733
    Abstract: 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: Grant
    Filed: October 16, 2006
    Date of Patent: June 4, 2013
    Assignee: BASF SE
    Inventors: Margherita Fontana, Gabriele Baisch, Thomas Giesenberg, Laurent Michau, Reinhold Öhrlein, Andreas Mühlebach
  • Patent number: 8404864
    Abstract: The present invention relates to compounds of the formula (I) wherein the substituents are as defined in claim 1, and their use as organic semiconductor in organic devices, like diodes, organic field effect transistors and/or a solar cells. The compounds of the formula I have excellent solubility in organic solvents. High efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when said compounds are used in semiconductor devices or organic photovoltaic (PV) devices (solar cells).
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: March 26, 2013
    Assignee: BASF SE
    Inventors: Zhimin Hao, Beat Schmidhalter, Jean-Luc Budry, Margherita Fontana, Mathieu Turbiez, Frank Bienewald, Mathias Düggeli, Oliver Frédéric Aebischer, Pascal Hayoz, Marta Fonrodona Turon
  • Patent number: 8270063
    Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and a cationic pigment orcationic pigment derivative, and the dispersantis selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers, with the proviso that the cationic pigment or cationic pigment derivative is not a reaction product of carbonblack with diazotated procaine hydrochloride. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole cationic pigment or cationic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the cationic pigment or cationic pigment derivative physically distinct from the aggregates.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: September 18, 2012
    Assignee: BASF SE
    Inventors: Margherita Fontana, Gerardus De Keyzer, Philippe Bugnon, Marcel Hahn, Kishor Kumar Mistry, Clemens Auschra
  • Publication number: 20120229884
    Abstract: 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: Application
    Filed: June 11, 2010
    Publication date: September 13, 2012
    Applicant: BASF SE
    Inventors: Pascal Hayoz, Bernd Lamatsch, Achim Lamatsch (Sole Heir), Margherita Fontana, Stephan Burkhardt, Laurent Michau, Urs Lehmann, Philippe Bugnon
  • Publication number: 20120172498
    Abstract: Described is a pigment dispersion which is useful for electrophoretic displays comprising ?) a bis-oxodihydro-indolylene-benzodifuranone colorant of the Formula (I) wherein the substituents are defined as in claim 1, ? a specific polymeric dispersant, and ?) a solvent which is suitable for dispersions used in electrophoretic displays. Also described are novel colourants and dispersants.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 5, 2012
    Applicant: BASF SE
    Inventors: Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas Gernandt, Dario Perera, Thomas Ruch, Christoph Krebs, Thomas Eichenberger, Bernd Lamatsch, Achim Lamatsch (Heir)
  • Patent number: 8040592
    Abstract: The invention relates to an electrophoretic display, comprising electrodes and cells containing at least one kind of ionic, monochrome particles, a non-polar liquid and a dispersant, wherein the ionic, monochrome particles of at least one kind are essentially aggregates consisting of a carbon containing pigment and an anionic pigment or anionic pigment derivative, and the dispersant is selected from the group consisting of polyacrylates, polyesters, polyurethanes and copolymers. In general, the whole quantity of the pigment and the main part, preferably at least 80%, most preferred from 95% to 100%, of the whole anionic pigment or anionic pigment derivative present within the cells is comprised in the aggregates, with essentially no pigment and only a minor part of the anionic pigment or anionic pigment derivative physically distinct from the aggregates.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: October 18, 2011
    Assignee: BASF SE
    Inventors: Margherita Fontana, Gerardus De Keyzer, Philippe Bugnon, Marcel Hahn, Kishor Kumar Mistry, Clemens Auschra
  • Publication number: 20110240981
    Abstract: The present invention relates to polymers comprising a repeating unit of the formula I, or III and their use as organic semiconductor in organic devices, especially an organic field effect transistor (OFET), or a device containing a diode and/or an organic field effect transistor. The polymers according to the invention have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors.
    Type: Application
    Filed: October 21, 2009
    Publication date: October 6, 2011
    Applicant: BASF SE
    Inventors: Mathias Düggeli, Mahmoud Zaher Eteish, Pascal Hayoz, Olivier Frédéric Aebischer, Marta Fonrodona Turon, Margherita Fontana, Marian Lanz, Mathieu G.R. Turbiez, Beat Schmidhalter, Jean-Charles Flores