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  • MULTILAYERED MATERIAL
    Publication number: 20210347457
    Abstract: The present invention refers to a new multilayered material, reinforced with fibres and having an improved adhesion between the layers throughout its entire structure; to a process for its preparation and to the articles made with such material, intended to be exposed to adverse conditions, such as strong winds, stretching, temperature changes, such as for example sails for boat.
    Type: Application
    Filed: September 20, 2019
    Publication date: November 11, 2021
    Applicant: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA
    Inventors: Ilker BAYER, Gabriele NANNI
  • HYDROPHOBIC COATINGS THAT INCLUDE NANOPARTICLES
    Publication number: 20190169460
    Abstract: A coating and related methods useful for reducing insect residue on moving surfaces, such as turbine blades or aircraft. The coating can include alternating layers of a perfluorinated acrylic copolymer and silicon dioxide nanoparticles that have been infused into one another via thermal annealing processes. The coating may be super-hydrophobic and exhibits desirable durability characteristics.
    Type: Application
    Filed: December 6, 2017
    Publication date: June 6, 2019
    Inventors: Eric Loth, Ilker Bayer, K Ghokulla Krishnan
  • A BIODEGRADABLE BIOCOMPOSITE AND A PROCESS FOR ITS PREPARATION
    Publication number: 20220314515
    Abstract: The present invention relates to biodegradable composites based on blends of a thermoplastic polymer material with cellulosic materials, useful for several industrial and packaging applications, in particular for the manufacture of biodegradable films and articles of complex shape, having improved mechanical properties, oxygen barrier properties, biodegradation and heat resistance; and to a process for the manufacture of these biodegradable composites.
    Type: Application
    Filed: August 10, 2020
    Publication date: October 6, 2022
    Applicants: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA, NOVACART S.P.A.
    Inventors: Gianmario ANGHILERI, Athanasia ATHANASIOU, Ilker BAYER, Roberto CINGOLANI, Alexander Jerome DAVIS, Maria Erminia GENOVESE, Michele GEROSA, Malena Esther OLIVEROS, Uttam Chandra PAUL, Anshu Anjali SINGH
  • Process for providing hydrorepellent properties to a fibrous material and thereby obtained hydrophobic materials
    Patent number: 9512567
    Abstract: Process for treating a fibrous material, to make said material hydrophobic and/or water-repellent, comprising the operation of impregnating said material with a suspension comprising nanoparticles of a hydrophobic material and a cyanoacrylate in an organic solvent and causing the crosslinking of said cyanoacrylate; the process uses an amount of cyanoacrylate and a weight ratio with the nanoparticles such as to produce complete or partial coating of the fibrous material with a matrix of crosslinked cyanoacrylate in which said nanoparticles are dispersed.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: December 6, 2016
    Assignee: Fondazione Istituto Italiano Di Tecnologia
    Inventors: Roberto Cingolani, Athanasia Athanasiou, Ilker Bayer
  • Process for the preparation of biodegradable plastic films
    Patent number: 11242437
    Abstract: A process for the manufacture of biodegradable plastic films in aqueous environment, starting from vegetal wastes in powder form includes dissolution at a temperature lower than 50° C. of waste material in form of a powder in an aqueous solution of hydrochloric acid, and transfer of the aqueous solution in a casting mould and evaporation of the aqueous solution, to yield the biodegradable plastic film. The total concentration of the hydrochloric acid is equal to or lower than 5% by weight. The aqueous solution may include acetic acid. The aqueous solution may also be filtered or centrifuged and/or subjected to dialysis against pure water.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: February 8, 2022
    Assignee: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA
    Inventors: Giovanni Perotto, Ilker Bayer, Athanasia Athanasiou
  • Method for preparing micro-patterned superhydrophobic/superhydrophilic coatings
    Patent number: 9139739
    Abstract: Provided herein are methods and materials for the production of hydrophobic coatings, which may be thermally treated to produce binary hydrophobic-hydrophilic regions.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: September 22, 2015
    Assignee: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Constantine M. Megaridis, Thomas M. Schutzius, Ilker S. Bayer
  • PROCESS FOR THE PREPARATION OF GRAPHENE DISPERSIONS
    Publication number: 20190300656
    Abstract: The present invention refers to a process for the preparation of a graphene dispersion comprising the following steps: i) providing cellulose acetate flakes or powders; ii) swelling the cellulose acetate flakes or powders in an alcohol having from 1 to 3 carbon atoms; iii) adding acetic anhydride in a concentration range from 30 to 50 wt % referred to the total weight of the mixture; iv) adding graphene nanoplatelets to yield a graphene dispersion. The graphene dispersion is used as ink for composite materials that are employed in the field of foldable electronics.
    Type: Application
    Filed: July 20, 2017
    Publication date: October 3, 2019
    Applicants: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA, UNIVERSITA' DEGLI STUDI DI GENOVA
    Inventors: Pietro Cataldi, Ilker Bayer, Athanasia Athanasiou
  • Process for the preparation of graphene dispersions
    Patent number: 10913825
    Abstract: The present invention refers to a process for the preparation of a graphene dispersion comprising the following steps: i) providing cellulose acetate flakes or powders; ii) swelling the cellulose acetate flakes or powders in an alcohol having from 1 to 3 carbon atoms; iii) adding acetic anhydride in a concentration range from 30 to 50 wt % referred to the total weight of the mixture; iv) adding graphene nanoplatelets to yield a graphene dispersion. The graphene dispersion is used as ink for composite materials that are employed in the field of foldable electronics. The invention relates also to a composite material comprising uniformly dispersed graphene nanoplatelets and its use for manufacturing electronic devices.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 9, 2021
    Assignees: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA, UNIVERSITA' DEGLI STUDI DI GENOVA
    Inventors: Pietro Cataldi, Ilker Bayer, Athanasia Athanasiou
  • METHOD FOR PREPARING MICRO-PATTERNED SUPERHYDROPHOBIC/SUPERHYDROPHILIC COATINGS
    Publication number: 20140017457
    Abstract: Provided herein are methods and materials for the production of hydrophobic coatings, which may be thermally treated to produce binary hydrophobic-hydrophilic regions.
    Type: Application
    Filed: July 15, 2013
    Publication date: January 16, 2014
    Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
    Inventors: Constantine M. Megaridis, Thomas M. Schutzius, Ilker S. Bayer
  • SUPERHYDROPHOBIC NANOCOMPOSITE COATINGS
    Publication number: 20140113144
    Abstract: The invention relates to a superhydrophobic coating composition containing a polyurethane; a fluoropolymer; a nanofiller; and an organic solvent. The polyurethane to fluoropolymer are present in a weight ratio from about 1:2 to about 15:1. Coated substrate having at least a portion of one surface coated with a hydrophobic coating using the superhydrophobic coating composition are disclosed as are methods for forming a superhydrophobic coating on a substrate. The invention also relates to a method of forming a superhydrophobic coating on a surface of a substrate by spray casting a superhydrophobic coating composition onto a surface of a substrate to form a coating using an ultrasonic nozzle or at an air pressure of about 20 to about 60 psi and from a height of about 3 to about 12 inches above the surface to form a coating, and curing the coating.
    Type: Application
    Filed: June 8, 2012
    Publication date: April 24, 2014
    Applicant: UNIVERSITY OF VIRGINIA PATENT FOUNDATION
    Inventors: Eric Loth, Adam Steele, Ilker Bayer
  • SUPERHYDROPHOBIC COMPOSITIONS
    Publication number: 20130030098
    Abstract: The present invention relates to a stable dispersion comprising at least, but not limited to, three key elements that, when combined accordingly, can achieve the desired superhydrophobic results; the at least three elements being a hydrophobic component, nano-structured particles and water.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Inventors: Constantine M. Megaridis, Thomas M. Schutzius, Ilker S. Bayer, Jian Qin
  • Composite Material Compositions and Methods
    Publication number: 20100068434
    Abstract: Compositions comprising a substrate having a layer thereover, the layer comprising a fluoropolymer and a nanofiller. Compositions comprising a substrate having a layer thereover, the layer comprising a fluoropolymer and a clay material. Methods for preparing a composite coating material solution, comprising: preparing a first solution comprising a fluoropolymer and an acetate; preparing a second solution comprising a clay material and a nanofiller suspension; and mixing the first and second solutions to form a composite coating material solution. Methods for applying a composite material layer to a substrate, comprising depositing a solution onto a substrate, wherein the solution comprises a clay material and fluoropolymer. Methods for applying a composite material layer to a substrate, comprising depositing a solution onto a substrate, wherein the solution comprises a fluoropolymer and a nanofiller.
    Type: Application
    Filed: August 10, 2009
    Publication date: March 18, 2010
    Inventors: Adam P. Steele, Ilker Bayer, Eric Loth
  • Superhydrophobic compositions
    Patent number: 9217094
    Abstract: The present invention relates to a stable dispersion comprising at least, but not limited to, three key elements that, when combined accordingly, can achieve the desired superhydrophobic results; the at least three elements being a hydrophobic component, nano-structured particles and water.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: December 22, 2015
    Assignee: The Board of Trustees of the University of Illinois
    Inventors: Constantine M. Megaridis, Thomas M. Schutzius, Ilker S. Bayer, Jian Qin
  • POLYMERIC COMPOSITE MATERIALS WITH ANTIMICROBIAL AND BIODEGRADABLE PROPERTIES AND USES THEREOF
    Publication number: 20150050234
    Abstract: A composite material for the production of a medical device having an antiseptic action includes a matrix of alginate in which the complex of iodopovidone is dispersed. The composite material is used particularly for the production of films, micro-capsules, and suture threads with iodine controlled release.
    Type: Application
    Filed: March 21, 2013
    Publication date: February 19, 2015
    Inventors: Athanasia Athanasiou, Ilker S. Bayer, Ioannis Liakos, Loris Rizzello, Roberto Cingolani, Stefania Sabella, Pier Paolo Pompa
  • SUPERHYDROPHOBIC SURFACES
    Publication number: 20130029551
    Abstract: The present invention relates to a surface of a substrate, or the substrate itself, exhibiting superhydrophobic characteristics when treated with a formulation comprising a hydrophobic component, nano-structured particles and water. The superhydrophobicity can be applied either over the entire surface, patterned throughout or on the substrate material, and/or directly penetrated through the z-directional thickness of the substrate material.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Inventors: Jian Qin, Donald E. Waldroup, Constantine M. Megaridis, Thomas M. Schutzius, Ilker S. Bayer
  • METHODS FOR THE PRODUCTION OF POLY(CYANOACRYLATE) FIBERS
    Publication number: 20160115339
    Abstract: Methods are provided for the production of poly(cyanoacrylate) micro- or nanofibers which include mixing the cyanoacrylate monomer with a dipolar aprotic solvent to form a poly(cyanoacrylate) gel, dissolving the gel in a solvent for acrylates to form a solution suitable for electrospinning, and submitting the solution thus obtained to electrospinning to form said micro- or nanofibers. The micro- or nanofibers thus obtained can be used to form coatings that adhere to a substrate as a result of thermal treatment.
    Type: Application
    Filed: May 15, 2014
    Publication date: April 28, 2016
    Inventors: Ilker S. BAYER, Elisa MELE, Roberto CINGOLANI, Athanasia ATHANASIOU
  • Superhydrophobic surfaces
    Patent number: 9364859
    Abstract: The present invention relates to a surface of a substrate, or the substrate itself, exhibiting superhydrophobic characteristics when treated with a formulation comprising a hydrophobic component, nano-structured particles and water. The superhydrophobicity can be applied either over the entire surface, patterned throughout or on the substrate material, and/or directly penetrated through the z-directional thickness of the substrate material.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: June 14, 2016
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jian Qin, Donald E. Waldroup, Constantine M. Megaridis, Thomas M. Schutzius, Ilker S. Bayer
  • Methods of fabricating surface enhanced raman scattering substrates
    Patent number: 8576394
    Abstract: A method of fabricating a surface enhanced Raman scattering (SERS) substrate. In one embodiment, the method has the steps of simultaneously evaporating a metal at a first evaporation rate and a polymer at a second evaporation rate different from the first evaporation rate, to form a nanocomposite of the metal and the polymer, depositing the nanocomposite onto a substrate, and applying an etching process to the deposited nanocomposite on the substrate to remove the polymer material, thereby forming an SERS substrate.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: November 5, 2013
    Assignee: Board of Trustees of the University of Arkansas
    Inventors: Alexandru S. Biris, Abhijit Biswas, Ilker S. Bayer, Lloyd A. Bumm
  • Polymeric composite materials with antimicrobial and biodegradable properties and uses thereof
    Patent number: 9931444
    Abstract: A composite material for the production of a medical device having an antiseptic action includes a matrix of alginate in which the complex of iodopovidone is dispersed. The composite material is used particularly for the production of films, micro-capsules, and suture threads with iodine controlled release.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: April 3, 2018
    Assignee: FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA
    Inventors: Athanasia Athanasiou, Ilker S. Bayer, Ioannis Liakos, Loris Rizzello, Roberto Cingolani, Stefania Sabella, Pier Paolo Pompa
  • Process For Encapsulating A Liquid
    Publication number: 20160325258
    Abstract: Globular microstructures comprising a liquid core and a solid shell that envelops the core comprising polymeric micro- or nanofibres, preferably obtained by electrospinning, comprising a hydrophobic polymer or a mixture of hydrophobic polymer with polymers derived from cellulose or with polyacrylates; the microstructures may have a further coating of nanoparticles or polymeric coating. The microstructures have applications similar to those of “liquid marbles” with improved mechanical properties.
    Type: Application
    Filed: December 16, 2014
    Publication date: November 10, 2016
    Applicant: Fondazione Istituto Italiano di Tecnologia
    Inventors: Elisa Mele, Ilker S. Bayer, Pier Paolo Pompa, Gabriele Maiorano, Athanasia Athanasiou, Roberto Cingolani
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