Patents by Inventor Cecilia Querci

Cecilia Querci 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: 10738135
    Abstract: The present invention relates to the sector of the industry for extracting and processing natural rubber, and other components, from plant material. In particular, the invention relates to a process for extracting resin and rubber from guayule and/or guayule type plants, which comprises harvesting, preserving and mechanically and chemically treating the parts of the plant, applicable both in the laboratory and on an industrial scale, characterized by significantly high quantity yields and high quality of the extracted products.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: August 11, 2020
    Assignee: Versalis S.P.A.
    Inventors: Cecilia Querci, Maria Caldararo, Mirko Oliosi, Matteo Russo
  • Patent number: 10654945
    Abstract: The present invention relates to the industrial sector of extracting and processing natural rubber, and other components, from plant material. In particular, the invention relates to a process for extracting latex, resin and rubber from guayule and/or guayule-type plants, which comprises harvest, preservation, mechanical and chemical treatment of the plant parts, which is applicable both in the laboratory and on an industrial scale and is characterised by significantly high yields and high quality of the extracted products.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 19, 2020
    Assignee: Versalis S.P.A.
    Inventors: Cecilia Querci, Alessandro Del Seppia, Mirko Oliosi, Tommaso Prando
  • Patent number: 10570312
    Abstract: Method for the separation of at least one isoprenic constituent from the resin of a plant of guayule and/or of the guayule type comprising the steps of: a) providing a defatted resin of guayule and/or of the guayule type; b) subjecting the defatted resin to partitioning of the liquid-liquid type with solvents that are immiscible in each other thus obtaining an apolar extract containing the isoprenic constituents guayulin A, guayulin B and argentatin B; and a polar extract containing the isoprene constituents argentatin A, argentatin C and argentatin D; and c) separating at least one isoprenic constituent from said polar extract and/or from the apolar extract thus obtained, wherein step c) comprises a step in which the polar extract is subjected to partitioning of the liquid-liquid type with solvents immiscible in each other and/or a step in which the apolar extract is subjected to partitioning of the solid-liquid type.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: February 25, 2020
    Assignee: versalis S.p.A
    Inventors: Cecilia Querci, Danilo Del Prete, Maria Caldararo, Gianni Girotti
  • Publication number: 20180371112
    Abstract: The present invention relates to the sector of the industry for extracting and processing natural rubber, and other components, from plant material. In particular, the invention relates to a process for extracting resin and rubber from guayule and/or guayule type plants, which comprises harvesting, preserving and mechanically and chemically treating the parts of the plant, applicable both in the laboratory and on an industrial scale, characterized by significantly high quantity yields and high quality of the extracted products.
    Type: Application
    Filed: December 13, 2016
    Publication date: December 27, 2018
    Inventors: Cecilia QUERCI, Maria CALDARARO, Mirko OLIOSI, Matteo RUSSO
  • Publication number: 20180371111
    Abstract: The present invention relates to the industrial sector of extracting and processing natural rubber, and other components, from plant material. In particular, the invention relates to a process for extracting latex, resin and rubber from guayule and/or guayule-type plants, which comprises harvest, preservation, mechanical and chemical treatment of the plant parts, which is applicable both in the laboratory and on an industrial scale and is characterised by significantly high yields and high quality of the extracted products.
    Type: Application
    Filed: December 13, 2016
    Publication date: December 27, 2018
    Applicant: Versalis S.P.A.
    Inventors: Cecilia QUERCI, Alessandro DEL SEPPIA, Mirko OLIOSI, Tommaso PRANDO
  • Publication number: 20180171178
    Abstract: Method for the separation of at least one isoprenic constituent from the resin of a plant of guayule and/or of the guayule type comprising the steps of: a) providing a defatted resin of guayule and/or of the guayule type; b) subjecting the defatted resin to partitioning of the liquid-liquid type with solvents that are immiscible in each other thus obtaining an apolar extract containing the isoprenic constituents guayulin A, guayulin B and argentatin B; and a polar extract containing the isoprene constituents argentatin A, argentatin C and argentatin D; and c) separating at least one isoprenic constituent from said polar extract and/or from the apolar extract thus obtained, wherein step c) comprises a step in which the polar extract is subjected to partitioning of the liquid-liquid type with solvents immiscible in each other and/or a step in which the apolar extract is subjected to partitioning of the solid-liquid type.
    Type: Application
    Filed: July 29, 2016
    Publication date: June 21, 2018
    Applicant: versalis S.p.A.
    Inventors: Cecilia QUERCI, Danilo DEL PRETE, Maria CALDARARO, Gianni GIROTTI
  • Patent number: 9969818
    Abstract: The present invention relates to an integrated process for processing and utilizing every part of the guayule plant (Parthenium argnetatum) which comprises the following steps in sequence: separating the stem and branches from the leaves of said plant with a mechanical treatment; treating the leaves to produce waxes and essential oils, and a fraction containing cellulose, hemicellulose (carbohydrates) and, to a minor extent, salts, organic compounds and lignin; extracting from the stem and branches a liquid phase, so forming a first solid woody residue, indicated with bagasse in the present text; treating said first solid woody residue to prepare sugars, resin, rubber and lignin.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: May 15, 2018
    Assignee: Versalis S.p.a.
    Inventors: Ezio Battistel, Stefano Ramello, Cecilia Querci
  • Publication number: 20170218094
    Abstract: The present invention relates to an integrated process for processing and utilising every part of the guayule plant (Parthenium argentatum) which comprises the following steps in sequence: separating the stem and branches (3) from the leaves (2) of said plant with a mechanical treatment (1); treating the leaves (100) to produce waxes and essential oils (102), and a fraction (101) containing cellulose, hemicellulose (carbohydrates) and, to a minor extent, salts, organic compounds and lignin; extracting (200) from the stem and branches a liquid phase (4), so forming a first solid woody residue (5), indicated with bagasse in the present text; treating said first solid woody residue (5) to prepare sugars, resin, rubber and lignin.
    Type: Application
    Filed: October 21, 2015
    Publication date: August 3, 2017
    Inventors: Ezio BATTISTEL, Stefano RAMELLO, Cecilia QUERCI
  • Patent number: 8722824
    Abstract: Copolymers of acrylamide or methacrylamide, suitably modified with appropriate percentages of units deriving from comonomers of a hydrophobic nature and comonomers containing a positively charged ionic group, which are capable of effectively reducing the water permeability of a porous medium.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: May 13, 2014
    Assignee: ENI S.p.A.
    Inventors: Cecilia Querci, Matteo Russo, Riccardo Po′, Maria Anna Cardaci
  • Publication number: 20120130037
    Abstract: Copolymers of acrylamide or methacrylamide, suitably modified with appropriate percentages of units deriving from comonomers of a hydrophobic nature and comonomers containing a positively charged ionic group, which are capable of effectively reducing the water permeability of a porous medium.
    Type: Application
    Filed: December 10, 2009
    Publication date: May 24, 2012
    Applicant: ENI S.p.A.
    Inventors: Cecilia Querci, Matteo Russo, Riccardo Po', Maria Anna Cardaci
  • Publication number: 20080132744
    Abstract: A process is described for the preparation of a heterogeneous catalyst containing rhecnium as active component and C)an inert carrier medium. characterized in that said inert carrier is previously treated with a silanizing compound containing chlorine, before the laying of the active component on the carrier, and the activation of the heterogeneous catalyst takes place by means of thermal treatment followed by a rapid final cooling. The catalyst is particularly active in metathesis reactions of olefins.
    Type: Application
    Filed: October 26, 2004
    Publication date: June 5, 2008
    Applicant: POLIMERI EUROPA S.p.A.
    Inventors: Cecilia Querci, Aldo Bosetti, Rinaldo Guerrini, Francesco Panella, Matteo Russo
  • Publication number: 20070225478
    Abstract: A heterogeneous catalyst is described, active in the metathesis reaction of olefins comprising alumina as inert carrier and a rhenium compound as active component, characterized in that rhenium is present in an amount of less than 5% by weight with respect to the total preferably from 1 to 4% by weight, and the inert carrier is impregnated with at least one inorganic halide selected from FeCl3, CuCl2, TiCl4, RuCl3, ZnCl2 and NH4Cl, and/or the corresponding bromides or iodides and, subsequently, treated at a high temperature.
    Type: Application
    Filed: March 8, 2005
    Publication date: September 27, 2007
    Inventors: Cecilia Querci, Aldo Bosetti, Antonio Gennaro, Rinaldo Guerrini, Matteo Russo
  • Publication number: 20030224930
    Abstract: A process is described for the preparation of a heterogeneous catalyst containing rhenium as active component and an inert carrier, characterized in that said inert carrier is previously subjected to thermal treatment before the supporting of the active component and the activation of the heterogeneous catalyst is effected by means of thermal treatment followed by a rapid final cooling. The catalyst is particularly active in the metathesis reaction of olefins.
    Type: Application
    Filed: March 19, 2003
    Publication date: December 4, 2003
    Applicant: POLIMERI EUROPA S.p.A.
    Inventors: Cecilia Querci, Francesco Panella, Rinaldo Guerrini, Matteo Russo
  • Patent number: 5936051
    Abstract: Metallocene complexes of a metal M selected from titanium, zirconium and hafnium, comprising at least one anionic group A containing an .eta..sup.5 -cyclopentadienyl ring co-ordinated with the metal M, wherein the anionic group is substituted in at least one position of the cyclopentadienyl ring with a radical having the formula:Ph*--(CR.sup.6 R.sup.7).sub.nwherein: R.sup.6 and R.sup.7 are independently hydrogen, halogen or a C.sub.1 -C.sub.4 alkyl group, preferably hydrogen, "n" is 0 or 1, preferably 1, Ph* is a C.sub.6 -C.sub.14 group comprising an aromatic ring linked to --CR.sup.6 R.sup.7 -- or to A and substituted with at least one and up to a maximum of three electron-attractor groups, on the condition that, when A is an .eta..sup.5 -indenyl group and "n" is 0, at least one Ph group is linked to A in position 1 or 3 of indenyl.These complexes can be used in (co)polymerization processes of .alpha.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: August 10, 1999
    Assignee: Enichem S.p.A.
    Inventors: Roberto Santi, Giampiero Borsotti, Cecilia Querci, Liliana Gila, Antonio Proto
  • Patent number: 5500285
    Abstract: Phosphino oxide group containing compounds useful as flame retardant additives, having the general formula (I): ##STR1## wherein: X and X.sub.1 represent a hydrogen atom or, when taken jointly, they represent an NR.sub.1 moiety in which R.sub.1 stands for a hydrogen atom; a linear or branched aliphatic C.sub.1 -C.sub.5 moiety; a linear or branched C.sub.2 -C.sub.6 acyl moiety; a phenyl moiety;R represents a cyclic or polycyclic C.sub.4 -C.sub.9 moiety containing two carboxy groups, possibly esterified with univalent alcohols or glycols, or transformed into anhydrides, or two hydroxy groups.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: March 19, 1996
    Assignees: Great Lakes Chemical Italia S.r.l., Eniricerche S.p.A.
    Inventors: Vittorio Carletti, Gianfranco Longhini, Riccardo Po', Roberto Podesta', Anna M. Romano, Cecilia Querci
  • Patent number: 5395992
    Abstract: Disclosed is the synthesis of terminal diols, which are organic intermediates used in order to produce polymeric materials, by starting from terminal diolefins, which synthesis is based on the oxidation of diolefins to yield diepoxides, in a double-phase aqueous-organic system with hydrogen peroxide and in the presence of catalysts soluble in the organic phase, followed by a reaction of reduction of the resulting diepoxides.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: March 7, 1995
    Assignee: Enichem S.p.A.
    Inventors: Marco Ricci, Francesco Gementi, Francesco Panella, Cecilia Querci, Raffaele Ungarelli