Patents by Inventor Ugo De Patto
Ugo De Patto 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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Publication number: 20230089683Abstract: The present invention relates to polymers obtained by the copolymerization of (per)fluoropolyether (PFPE), tetrafluoroethylene (TFE) and at least one non-homopolymerizable olefin.Type: ApplicationFiled: February 22, 2021Publication date: March 23, 2023Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Michela Bea, Ugo De Patto
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Publication number: 20220332854Abstract: The invention pertains to a method of making fluoropolymer dispersions using certain polyfunctional perfluoropolyether derivatives including a plurality of ionisable groups selected from the group consisting of —SO.sub.3X.sub.a, —PO.sub.3X.sub.a and —COOX.sub.a, whereas X.sub.a is H, an ammonium group or a monovalent metal, and whereas said groups are comprised as pendant groups in the perfluoropolyether chain, and to fluoropolymer dispersions therefrom.Type: ApplicationFiled: June 28, 2022Publication date: October 20, 2022Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Marco Avataneo, Ugo De Patto, Giuseppe Marchionni, Mirko Tavano
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Patent number: 11401352Abstract: The invention pertains to a method of making fluoropolymer dispersions using certain polyfunctional perfluoropolyether derivatives including a plurality of ionisable groups selected from the group consisting of —SO3Xa, —PO3Xa and —COOXa, whereas Xa is H, an ammonium group or a monovalent metal, and whereas said groups are comprised as pendant groups in the perfluoropolyether chain, and to fluoropolymer dispersions therefrom.Type: GrantFiled: September 4, 2018Date of Patent: August 2, 2022Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Marco Avataneo, Ugo De Patto, Giuseppe Marchionni, Mirko Tavano
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Publication number: 20210324291Abstract: The present invention relates to a composition suitable to be used as working fluid, said composition being in the form of a solution and comprising at least one (per)fluoropolyether polymer [polymer (P)] and at least one amorphous polymer [polymer (F)].Type: ApplicationFiled: March 30, 2018Publication date: October 21, 2021Inventors: Giovanni BOCCALETTI, Sara ROVINETTI, Ugo DE PATTO
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Patent number: 10906999Abstract: The invention pertains to a (per)fluoroelastomer composition comprising: —a (per)fluoroelastomer [fluoroelastomer (A)]; and —at least one (per)fluoropolyether additive [polymer (E)] comprising a (per)fluoropolyether chain comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and comprising at least one chain end comprising at least one per(halo)fluorinated aromatic group [group (ArF)], said polymer (E) being comprised in the composition in an amount of 0.5 to 30 phr, with respect to fluoroelastomer (A).Type: GrantFiled: December 14, 2016Date of Patent: February 2, 2021Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Marco Avataneo, Liubov Chernysheva, Ugo De Patto
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Publication number: 20200262941Abstract: The invention pertains to a method of making fluoropolymer dispersions using certain polyfunctional perfluoropolyether derivatives including a plurality of ionisable groups selected from the group consisting of —SO3Xa, —PO3Xa and —COOXa, whereas Xa is H, an ammonium group or a monovalent metal, and whereas said groups are comprised as pendant groups in the perfluoropolyether chain, and to fluoropolymer dispersions therefrom.Type: ApplicationFiled: September 4, 2018Publication date: August 20, 2020Inventors: Marco AVATANEO, Ugo DE PATTO, Giuseppe MARCHIONNI, Mirko TAVANO
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Publication number: 20180371134Abstract: The invention pertains to a (per)fluoroelastomer composition comprising: —a (per)fluoroelastomer [fluoroelastomer (A)]; and —at least one (per)fluoropolyether additive [polymer (E)] comprising a (per)fluoropolyether chain comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and comprising at least one chain end comprising at least one per(halo)fluorinated aromatic group [group (AO], said polymer (E) being comprised in the composition in an amount of 0.5 to 30 phr, with respect to fluoroelastomer (A).Type: ApplicationFiled: December 14, 2016Publication date: December 27, 2018Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Marco AVATANEO, Liubov CHERNYSHEVA, Ugo DE PATTO
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Publication number: 20180051226Abstract: The present invention relates to the use of highly viscous (per)fluoropolyether polymers as damping fluids and to a method for counteract vibrations and/or shocks in a device using highly viscous (per)fluoropolyether polymers.Type: ApplicationFiled: March 22, 2016Publication date: February 22, 2018Inventors: Ugo DE PATTO, Sara ROVINETTI, Giovanni BOCCALETTI, Fabio RIGANTI
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Patent number: 9249260Abstract: A process for preparing perfluoropolyethers of formula T-O—(RF)z-T???(I) wherein: T, T' are end groups, z=0 or 1; RF is a perfluoro(poly)oxyalkylene chain containing one or more fluorooxyalkylene repeating units selected from the group consisting of (CF2O), —(CF(CF3)O)—, —(CF2CF2O)—, —(CF2CF(CF3)O)—, —(CF(CF3)CF2O)—, —(CF2CF2CF2O)—, —(CF2CF2CF2CF2O)—, and —(CF2)j—CFZ—O— wherein j is an integer from 0 to 3, and Z is a fluorooxyalkylene chain comprising from 1 to 20 repeating units selected from the above reported fluorooxyalkylene units; comprising the reduction of peroxidic perfluoropolyethers comprising one or more of the above defined repeating units by using gaseous hydrogen in the presence of a catalyst comprising one or more metals of the VIII group supported on graphitic materials.Type: GrantFiled: April 8, 2008Date of Patent: February 2, 2016Assignee: SOLVAY SOLEXIS S.P.A.Inventors: Ugo De Patto, Giuseppe Marchionni, Pier Antonio Guarda
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Patent number: 8946136Abstract: Hydrofluoro alcohols of formula (I): A-(Rf)a—CFX—O—RhO—(CFX—(Rf)a*—CFX—O—RhO—)nH in which: Rh is a hydrocarbon-based chain; X is F or a C1-C6 (per)fluoroalkyl; a or a* is 0 or 1; Rf is a (per)fluoro(poly)oxyalkylene chain or a (per)fluoroalkyl chain; A is selected from the group consisting of —F, —Cl, and —H (possible only when a=1) or is HO—Rh—O—CFX—; n is an integer from 0 to 200, with the condition that n=0 when A is selected from the group consisting of —F, —Cl, and —H.Type: GrantFiled: August 7, 2009Date of Patent: February 3, 2015Assignee: Solvay Specialty Polymers Italy S.p.A.Inventors: Giuseppe Marchionni, Ugo De Patto, Marco Avataneo
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Publication number: 20130244131Abstract: A method for the preparation of corrugated fuel cell units from a composite laminate comprising an ion conductive membrane having first and second surface; a first electrocatalyst layer in contact with the first surface of the membrane; a second electrocatalyst layer in contact with the second surface of the membrane; a first metallic mesh in contact with said first electrocatalyst layer and a second metallic mesh in contact with said second electrocatalyst layer.Type: ApplicationFiled: November 28, 2011Publication date: September 19, 2013Applicant: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Vincenzo Arcella, Giuseppe Marchionni, Ugo De Patto, Pier Antonio Guarda
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Patent number: 8008523Abstract: A process for preparing monocarboxylic perfluoropolyethers of formula: A-O—(RF)z—(CFY)t—C(O)OX (I) wherein: X is H, C1-C10 alkyl, or an aryl group; Y=F, CF3; t=1, 2 or 3; A is a C1-C4 perfluoroalkyl end group; z=0 or 1; RF is a perfluorooxyalkylene chain; having a number average molecular weight in the range 180-8,000; comprising the following steps: a) one or more distillations of perfluoropolyethers (PFPE) of formula T-O—(RF)z-T? (II) wherein: z and RF are as above defined; T, T?, equal to or different from each other, are selected from acyl fluoride or carbonyl-containing functional end groups and non functional end groups to obtain one PFPE fraction of formula (II) wherein the difference between the minimum and the maximum molecular weight of the components is lower than or equal to 600; b) partial fluorination of the fraction obtained in a); c) esterification c1) and/or hydrolysis c2) of the mixture obtained in b); d) distillation of the product obtained in c2) or in c1).Type: GrantFiled: April 3, 2007Date of Patent: August 30, 2011Assignee: Solvay Solexis S.p.A.Inventors: Giuseppe Marchionni, Ugo De Patto, Pier Antonio Guarda
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Publication number: 20110136713Abstract: Hydrofluoro alcohols of formula (I): A—(Rf)a—CFX—O—RhO—(CFX—(Rf)a*—CFX—O—RhO—)nH in which: Rh is a hydrocarbon-based chain; X is F or a C1-C6 (per)fluoroalkyl; a or a* is 0 or 1; Rf is a (per)fluoro(poly)oxyalkylene chain or a (per)fluoroalkyl chain; A is selected from the group consisting of —F, —Cl, and —H (possible only when a=1) or is HO—Rh—O—CFX—; n is an integer from 0 to 200, with the condition that n=0 when A is selected from the group consisting of —F, —Cl, and —H.Type: ApplicationFiled: August 7, 2009Publication date: June 9, 2011Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Giuseppe Marchionni, Ugo De Patto, Marco Avataneo
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Publication number: 20100121106Abstract: A process for preparing perfluoropolyethers of formula T-O—(RF)z-T???(I) wherein: T, T? are end groups, z=0 or 1; RF is a perfluoro(poly)oxyalkylene chain containing one or more fluorooxyalkylene repeating units selected from the group consisting of (CF2O), —(CF(CF3)O)—, —(CF2CF2O)—, —(CF2CF(CF3)O)—, —(CF(CF3)CF2O)—, —(CF2CF2CF2O)—, —(CF2CF2CF2CF2O)—, and —(CF2)j—CFZ—O— wherein j is an integer from 0 to 3, and Z is a fluorooxyalkylene chain comprising from 1 to 20 repeating units selected from the above reported fluorooxyalkylene units; comprising the reduction of peroxidic perfluoropolyethers comprising one or more of the above defined repeating units by using gaseous hydrogen in the presence of a catalyst comprising one or more metals of the VIII group supported on graphitic materials.Type: ApplicationFiled: April 8, 2008Publication date: May 13, 2010Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Ugo De Patto, Giuseppe Marchionni, Pier Antonio Guarda
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Publication number: 20090118550Abstract: A process for preparing monocarboxylic perfluoropolyethers of formula: A-O-(RF)z-(CFY)t-C(O)OX (I) wherein: X is H, C1-C10 alkyl, or an aryl group; Y=F, CF3; t=1, 2 or 3; A is a C1-C4 perfluoroalkyl end group; z=0 or 1; RF is a perfluorooxyalkylene chain; having a number average molecular weight in the range 180-8,000; comprising the following steps: a) one or more distillations of perfluoropolyethers (PFPE) of formula T-O-(RF)z-T? (II) wherein: z and RF are as above defined; T, T?, equal to or different from each other, are selected from acyl fluoride or carbonyl-containing functional end groups and non functional end groups to obtain one PFPE fraction of formula (II) wherein the difference between the minimum and the maximum molecular weight of the components is lower than or equal to 600; b) partial fluorination of the fraction obtained in a); c) esterification c1) and/or hydrolysis c2) of the mixture obtained in b); d) distillation of the product obtained in c2) or in c1).Type: ApplicationFiled: April 3, 2007Publication date: May 7, 2009Applicant: Solvay Solexis S.p.A.Inventors: Giuseppe Marchionni, Ugo De Patto, Pier Antonio Guarda
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Patent number: 7247737Abstract: Perfluoropolyethers obtained by oxidation of perfluorodioxoles of formula (I) wherein Rf=—F, —(O)yCnF2n+1 with y=0, 1 and n=1, 2, 3, 4, 5, and with W=—F, —CnF2n+1, optionally in the presence of tetrafluoroethylene and/or hexafluoropropene, and subsequent reduction of the obtained peroxidic perfluoropolyethers.Type: GrantFiled: June 11, 2003Date of Patent: July 24, 2007Assignee: Solvay Solexis, S.p.A.Inventors: Giuseppe Marchionni, Ugo De Patto
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Patent number: 7132051Abstract: A liquid-liquid extraction process of ketones, alcohols, aldehydes, alkyl esters of carboxylic acids, carboxylic acids, ethers, amines and heterocyclic compounds, from their aqueous solutions, comprising the addition under stirring to said aqueous solutions of a fluorinated extracting liquid selected from A) hydrofluoropolyethers, B) hydrofluorocarbons, C) hydrofluoroethers, or mixtures thereof, with formation of an aqueous phase and of an organic phase; the separation of the organic phase from the aqueous phase; the fractional distillation of the organic phase to separate the polar organic substance from the extractant.Type: GrantFiled: March 11, 2003Date of Patent: November 7, 2006Assignee: Solvay Solexis, S.p.A.Inventors: Giuseppe Marchionni, Ugo De Patto, Marco Avataneo
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Publication number: 20030232922Abstract: Perfluoropolyethers obtained by oxidation of perfluorodioxoles of formula (I) 1Type: ApplicationFiled: June 11, 2003Publication date: December 18, 2003Applicant: SOLVAY SOLEXIS S.p.A.Inventors: Giuseppe Marchionni, Ugo De Patto
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Publication number: 20030173310Abstract: A liquid-liquid extraction process of ketones, alcohols, aldehydes, alkyl esters of carboxylic acids, carboxylic acids, ethers, amines and heterocyclic compounds, from their aqueous solutions, comprising the addition under stirring to said aqueous solutions of a fluorinated extracting liquid selected fromType: ApplicationFiled: March 11, 2003Publication date: September 18, 2003Applicant: Solvay Solexis, S.p.A.Inventors: Giuseppe Marchionni, Ugo De Patto, Marco Avataneo
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Patent number: 6403539Abstract: Perfluoropolyether lubricants containing sulphonylfluoride groups pending along the perfluoropolyether chain and having the following formula: wherein: T are end groups selected from —CF2X (X═F,CF3Cl), —C3F7, —COF, —CF(CF3)COF, —CF2COF, —CF2COCF3; d,e,f,h are integers; a,b,c can be zero or integers; said units are statistically distributed along the chain, being a+b+c+d+e+f+h such that the number average molecular weight ranges from 500 to 5×105, preferably from 1,000 to 50,000.Type: GrantFiled: August 2, 2000Date of Patent: June 11, 2002Assignee: Ausimont S.p.A.Inventors: Giuseppe Marchionni, Ugo De Patto