Patents by Inventor Anna Maria Bertasa
Anna Maria Bertasa 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: 10745555Abstract: The present invention pertains to a process for the manufacture of a porous membrane, said process comprising the following steps: (i) providing a composition [composition (F)] comprising: —at least one fluoropolymer [polymer (F)] comprising recurring units derived from at least one (meth)acrylic monomer (MA) having formula (I) wherein: —R1, R2 and R3, equal to or different from each other, are independently selected from a hydrogen atom and a C1-C3 hydrocarbon group, and —RX is a hydrogen atom or a C1-C5 hydrocarbon moiety comprising at least one functional group selected from a hydroxyl, a carboxyl, an epoxide, an ester and an ether group, and —at least one poly(alkylene oxide) (PAO); (ii) processing said composition (F) to provide a film; (iii) treating the film so obtained with an aqueous composition to provide said porous membrane.Type: GrantFiled: June 15, 2012Date of Patent: August 18, 2020Assignee: SOLVAY SPECIALTY POLYMER ITALY S.P.A.Inventors: Julio A. Abusleme, Anna Maria Bertasa, Regis Faig, Marco Miele, Stefano Mortara
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Patent number: 10173177Abstract: The invention relates to a process for the production of membranes based on ethylene/chlorotrifluoroethylene polymers having a melting temperature not exceeding 200° C. The process relies on the diffusion induced phase separation of the ethylene/chlorotrifluoroethylene polymer from a solution and comprises the steps of providing a solution comprising an ethylene/chlorotrifluoroethylene polymer having a melting temperature not exceeding 200° C. in a solvent; casting the polymer solution into a film; immersing the film in a non-solvent bath to precipitate the polymer. Membranes made of compositions comprising an ethylene/chlorotrifluoroethylene polymer having a melting temperature not exceeding 200° C. and at least one second polymer are also disclosed.Type: GrantFiled: July 29, 2010Date of Patent: January 8, 2019Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Julio A Abusleme, Ivan Pagin, Anna Maria Bertasa
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Patent number: 10079388Abstract: The present invention pertains to an aqueous composition comprising: (A) an aqueous latex comprising at least one vinylidene fluoride (VDF) polymer [polymer (F)] comprising recurring units derived from vinylidene fluoride (VDF) and at least one (meth)acrylic monomer (MA) having formula (I) here below: wherein: —R1, R2 and R3, equal to or different from each other, are independently selected from a hydrogen atom and a C1-C3 hydrocarbon group, and —ROH is a hydrogen atom or a C1-C5 hydrocarbon moiety comprising at least one hydroxyl group, (B) at least one powdery electrode material, and (C) optionally, less than 10% by weight, based on the total weight of the aqueous composition, of at least one organic solvent (S), wherein the polymer (F) in the aqueous latex is under the form of primary particles having an average primary particle size of less than 1 ?m, as measured according to ISO 13321.Type: GrantFiled: July 13, 2012Date of Patent: September 18, 2018Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Milena Stanga, Riccardo Pieri, Anna Maria Bertasa, Bradley Lane Kent, Giulio Brinati
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Patent number: 9701766Abstract: The present invention pertains to a process for the manufacture of a grafted fluorinated polymer comprising at least one grafted side chain comprising one or more glycosidic recurring units [polymer (F)], said process comprising polymerizing: vinylidene fluoride (VDF), optionally, one or more other fluorinated monomers [monomers (F)], and optionally, one or more (meth)acrylic monomers [monomers (MA)], in the presence of at least one polysaccharide derivative [derivative (P)], said polysaccharide derivative having a dynamic viscosity of less than 15 mPa×s, as measured according to ASTM D445 at 20° C. in an aqueous solution at a concentration of 2% by weight, and by further providing novel polymers (F) as defined above.Type: GrantFiled: December 13, 2011Date of Patent: July 11, 2017Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Julio A. Abusleme, Roberto Biancardi, Fabien Roblot, Anna Maria Bertasa, Giulio Brinati
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Publication number: 20140154573Abstract: The present invention pertains to an aqueous composition comprising: (A) an aqueous latex comprising at least one vinylidene fluoride (VDF) polymer [polymer (F)] comprising recurring units derived from vinylidene fluoride (VDF) and at least one (meth)acrylic monomer (MA) having formula (I) here below: wherein: —R1, R2 and R3, equal to or different from each other, are independently selected from a hydrogen atom and a C1-C3 hydrocarbon group, and —ROH is a hydrogen atom or a C1-C5 hydrocarbon moiety comprising at least one hydroxyl group, (B) at least one powdery electrode material, and (C) optionally, less than 10% by weight, based on the total weight of the aqueous composition, of at least one organic solvent (S), wherein the polymer (F) in the N aqueous latex is under the form of primary particles having an average primary particle size of less than 1 ?m, as measured according to ISO 13321.Type: ApplicationFiled: July 13, 2012Publication date: June 5, 2014Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Milena Stanga, Riccardo Pieri, Anna Maria Bertasa, Bradley Lane Kent, Giulio Brinati
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Publication number: 20140131268Abstract: The present invention pertains to a process for the manufacture of a porous membrane, said process comprising the following steps: (i) providing a composition [composition (F)] comprising: —at least one fluoropolymer [polymer (F)] comprising recurring units derived from at least one (meth)acrylic monomer (MA) having formula (I) wherein: —R1, R2 and R3, equal to or different from each other, are independently selected from a hydrogen atom and a C1-C3 hydrocarbon group, and —RX is a hydrogen atom or a C1-C5 hydrocarbon moiety comprising at least one functional group selected from a hydroxyl, a carboxyl, an epoxide, an ester and an ether group, and —at least one poly(alkylene oxide) (PAO); (ii) processing said composition (F) to provide a film; (iii) treating the film so obtained with an aqueous composition to provide said porous membrane.Type: ApplicationFiled: June 15, 2012Publication date: May 15, 2014Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Julio A. Abusleme, Anna Maria Bertasa, Regis Faig, Marco Miele, Stefano Mortara
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Publication number: 20130267622Abstract: The present invention pertains to a process for the manufacture of a grafted fluorinated polymer comprising at least one grafted side chain comprising one or more glycosidic recurring units [polymer (F)], said process comprising polymerizing: vinylidene fluoride (VDF), optionally, one or more other fluorinated monomers [monomers (F)], and optionally, one or more (meth)acrylic monomers [monomers (MA)], in the presence of at least one polysaccharide derivative [derivative (P)], said polysaccharide derivative having a dynamic viscosity of less than 15 mPa×s, as measured according to ASTM D445 at 20° C. in an aqueous solution at a concentration of 2% by weight, and by further providing novel polymers (F) as defined above.Type: ApplicationFiled: December 13, 2011Publication date: October 10, 2013Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Julio A. Abusleme, Roberto Biancardi, Fabien Roblot, Anna Maria Bertasa, Giulio Brinati
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Publication number: 20120125835Abstract: The invention relates to a process for the production of membranes based on ethylene/chlorotrifluoroethylene polymers having a melting temperature not exceeding 200° C. The process relies on the diffusion induced phase separation of the ethylene/chlorotrifluoroethylene polymer from a solution and comprises the steps of providing a solution comprising an ethylene/chlorotrifluoroethylene polymer having a melting temperature not exceeding 200° C. in a solvent; casting the polymer solution into a film; immersing the film in a non-solvent bath to precipitate the polymer. Membranes made of compositions comprising an ethylene/chlorotrifluoroethylene polymer having a melting temperature not exceeding 200° C. and at least one second polymer are also disclosed.Type: ApplicationFiled: July 29, 2010Publication date: May 24, 2012Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Julio A Abusleme, Ivan Pagin, Anna Maria Bertasa