Patents by Inventor Eliana Ieva

Eliana Ieva 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).

  • Publication number: 20230032788
    Abstract: The invention relates to a method for manufacturing low-molecular-weight polytetrafluoroethylene, comprising: a) a first step of mixing high-molecular-weight polytetrafluoroethylene with at least one additive selected from the group consisting of ethers having formula R1—O—R2, wherein R1 and R2 are independently selected among C1-C10 straight or branched aliphatic group, C4-C10 alicyclic or heterocyclic groups, C5-C10 aromatic or heteroaromatic groups; (per)fluorinated vinyl ethers; (per)fluorinated olefins; and optionally substituted aromatic hydrocarbons, and b) a second step of irradiating the so obtained mixture with ionizing radiation, said second step b) being carried out substantially in the absence of oxygen.
    Type: Application
    Filed: December 21, 2020
    Publication date: February 2, 2023
    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Vito Tortelli, Cristiano Monzani, Emanuela Antenucci, Eliana Ieva
  • Patent number: 11555094
    Abstract: The present invention relates to a method for stabilizing aqueous dispersions, notably of polymers based on vinylidene fluoride (VDF), and to the use of the stabilized aqueous dispersion thus obtained in electrochemical applications.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: January 17, 2023
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Serena Carella, Eliana Ieva, Mirko Mazzola, Giulio Brinati
  • Patent number: 11414506
    Abstract: The present invention pertains to a process for manufacturing a semi-crystalline fluoropolymer, to the fluoropolymer obtainable by said process and to uses of said fluoropolymer in various applications.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: August 16, 2022
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Mattia Bassi, Alessio Marrani, Fulvia Roncati, Eliana Ieva, Valeriy Kapelyushko
  • Publication number: 20220089853
    Abstract: The present invention relates to a fluorine-containing thermoplastic elastomer composition comprising a continuous thermoplastic fluorocarbon polymer phase and a dispersed fluorine-containing elastomer phase which are useful, for example, in automotive fuel lines.
    Type: Application
    Filed: March 4, 2020
    Publication date: March 24, 2022
    Inventors: Aldo SANGUINETI, Mattia BASSI, Eliana IEVA, Marco MIRENDA, Matteo FANTONI
  • Publication number: 20210130518
    Abstract: The present invention pertains to a process for manufacturing a semi-crystalline fluoropolymer, to the fluoropolymer obtainable by said process and to uses of said fluoropolymer in various applications.
    Type: Application
    Filed: April 9, 2018
    Publication date: May 6, 2021
    Inventors: Mattia BASSI, Alessio MARRANI, Fulvia RONCATI, Eliana IEVA, Valeriy KAPELYUSHKO
  • Publication number: 20200362118
    Abstract: The present invention relates to a method for stabilizing aqueous dispersions, notably of polymers based on vinylidene fluoride (VDF), and to the use of the stabilized aqueous dispersion thus obtained in electrochemical applications.
    Type: Application
    Filed: March 20, 2018
    Publication date: November 19, 2020
    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Serena CARELLA, Eliana IEVA, Mirko MAZZOLA, Giulio BRINATI
  • Publication number: 20200056064
    Abstract: The invention relates to a coating composition obtained by mixing aqueous latexes of VDF polymers with certain pyridinium salts, to a method of coating a substrate using the same, and to coated layers derived there from, and to its use for the manufacture of electrochemical cell components, such as electrodes and/or composite separators.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 20, 2020
    Inventors: Stefano BOSSOLO, Serena CARELLA, Eliana IEVA, Fulvia RONCATI
  • Patent number: 10138161
    Abstract: The present invention pertains to a process for manufacturing a fluoropolymer composite, said process comprising the following sequential steps: (i) providing an aqueous latex comprising from 10% to 40% by weight, preferably from 15% to 35% by weight of at least one fluoropolymer comprising recurring units derived from vinylidene fluoride (VDF) [polymer (VDF)]; (ii) up-concentrating the aqueous latex provided in step (i) thereby providing an up-concentrated aqueous latex comprising from 45% to 60% by weight, preferably from 45% to 55% by weight of at least one polymer (VDF); (iii) contacting one continuous fiber or a bunch of continuous fibers with the up-concentrated aqueous latex provided in step (ii); (iv) squeezing the impregnated fibrous material provided in step (iii); (v) drying the squeezed fibrous material provided in step (iv), typically at a temperature comprised between 100° C. and 120° C.; (vi) baking the dried fibrous material provided in step (v) at a temperature comprised between 190° C.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: November 27, 2018
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Eliana Ieva, Rui Liu, Elisabetta Sartirana
  • Publication number: 20160122241
    Abstract: The present invention pertains to a process for manufacturing a fluoropolymer composite, said process comprising the following sequential steps: (i) providing an aqueous latex comprising from 10% to 40% by weight, preferably from 15% to 35% by weight of at least one fluoropolymer comprising recurring units derived from vinylidene fluoride (VDF) [polymer (VDF)]; (ii) up-concentrating the aqueous latex provided in step (i) thereby providing an up-concentrated aqueous latex comprising from 45% to 60% by weight, preferably from 45% to 55% by weight of at least one polymer (VDF); (iii) contacting one continuous fibre or a bunch of continuous fibres with the up-concentrated aqueous latex provided in step (ii); (iv) squeezing the impregnated fibrous material provided in step (iii); (v) drying the squeezed fibrous material provided in step (iv), typically at a temperature comprised between 100° C. and 120° C.; (vi) baking the dried fibrous material provided in step (v) at a temperature comprised between 190° C.
    Type: Application
    Filed: May 29, 2014
    Publication date: May 5, 2016
    Inventors: Eliana IEVA, Rui LIU, Elisabetta SARTIRANA
  • Patent number: 9090794
    Abstract: A composition comprising at least one vinylidene fluoride (VDF) polymer [polymer (F)]; and inorganic particles at least partially coated with at least one perfluoropolyether block copolymer [polymer (E)] comprising: A) one or more (per)fluoropolyoxyalkylene segment (chain Rf), comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and B) one or more polyalkylene segment (chain Ra) comprising recurring units of formula: —(CR1R2—CR3R4)—, wherein R1, R2, R3, R4, equal to or different from each other, are selected from the group consisting of H, halogens (preferably F, Cl); C1-C6 (hydro)carbon groups, optionally containing fluorine or other heteroatoms, referably perfluoroalkyl or (per)fluorooxyalkyl. The invention also discloses a method of coating various substrates using said composition.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 28, 2015
    Assignee: SOLVAY SA
    Inventors: Vincenzo Arcella, Eliana Ieva, Shiow-Ching Lin, Marco Avataneo, Giuseppe Marchionni
  • Publication number: 20140343203
    Abstract: Use of an atmospheric plasma for the surface treatment of inorganic particles selected from the group consisting of particles of metal oxides, particles of metal carbonates, particles of metal sulfates, particles of metal phosphates, acicular particles, platy particles and fibrous particles,with a fluorine-containing precursor.
    Type: Application
    Filed: December 5, 2012
    Publication date: November 20, 2014
    Inventors: Hans Edouard Miltner, Eliana Ieva, Valeriy Kapelyushko
  • Publication number: 20130090417
    Abstract: A vinylidene fluoride (VDF) polymer composition comprising: at least one VDF polymer [polymer (F)]; and at least one additive obtained by treating inorganic particles with a mixture of modifying agents comprising: at least one fluoro-containing modifying agent [agent (X)] of formula: X4-mAYm wherein m is an integer from 1 to 3, A is a metal selected from the group consisting of Si, Ti and Zr, each of Y, equal to or different from each other, is a hydrolysable group, each of X, equal to or different from each other is a C1-C24 (hydro)(fluoro)carbon group, wherein at least one of X is a fluorine-containing C1-C24 group; and at least one hydrogen-containing functional modifying agent [agent (Z)] of formula: Z4-pEYp wherein p is an integer from 1 to 3, E is a metal selected from the group consisting of Si, Ti and Zr, each of Y, equal to or different from each other, is a hydrolysable group, each of Z, equal to or different from each other is a C1-C24 hydrocarbon group, wherein at least one of Z compri
    Type: Application
    Filed: June 10, 2011
    Publication date: April 11, 2013
    Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Shiow-Ching Lin, Eliana Ieva
  • Publication number: 20130059961
    Abstract: A composition comprising at least one vinylidene fluoride (VDF) polymer [polymer (F)]; and inorganic particles at least partially coated with at least one perfluoropolyether block copolymer [polymer (E)] comprising: A) one or more (per)fluoropolyoxyalkylene segment (chain Rf), comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and B) one or more polyalkylene segment (chain Ra) comprising recurring units of formula: —(CR1R2—CR3R4)—, wherein R1, R2, R3, R4, equal to or different from each other, are selected from the group consisting of H, halogens (preferably F, Cl); C1-C6 (hydro)carbon groups, optionally containing fluorine or other heteroatoms, preferably perfluoroalkyl or (per)fluorooxyalkyl. The invention also discloses a method of coating various substrates using said composition.
    Type: Application
    Filed: May 19, 2011
    Publication date: March 7, 2013
    Applicant: SOLVAY SA
    Inventors: Vincenzo Arcella, Eliana Ieva, Shiow-Ching Lin, Marco Avataneo, Giuseppe Marchionni