Patents Assigned to Solvay Solexis S.p.A.
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Publication number: 20090258273Abstract: MEA 7-layer assemblies with gasket, comprising: a film of ionomeric membrane (3), containing functional acid groups —SO3H and/or —COOH, having in at least one direction, called direction x, a size variation lower than 0.08%; two GDL sheets (1) and (2) in porous material having on one surface an electrocatalytic layer, not shown in the Figures, of which: the first sheet DGL (1) is coextensive with the membrane (3) surface, positioned so as to overlap thereto; the second sheet GDL (2), having a lower width but the same length of the film of membrane (3), measured in the x direction; the two sheets (1) and (2) placed so that the electrocatalytic layer comes into contact, respectively, with each of the two membrane faces; a gasket positioned according to a frame shape along the assembly perimeter.Type: ApplicationFiled: June 25, 2007Publication date: October 15, 2009Applicant: SOLVAY SOLEXIS S.p.A.Inventors: Vincenzo Arcella, Luca Merlo, Alessandro Ghielmi
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Publication number: 20090209442Abstract: A cyclic phosphazene compound complying with formula (I) or (II): wherein: Rf and R?f represent independently a (per)fluoropolyoxyalkylene chain comprising recurring units Ro, said recurring units, distributed randomly through the (per)fluoropolyoxyalkylene chain, being chosen among; (i)—CFXO—, X being F or CF3; (ii) —CF2CFXO—, X being F or CF3; (iii) —CF2CF2CF2O—; (iv) —CF2CF2CF2CF2O—; Z and Z? represent a polar group of formula —O?M+, M being chosen among hydrogen, a monovalent metal, or an ammonium radical of formula NR1R2R3R4, or represent a polar group of formula —O?)2M?2+, M? being a divalent metal; nZ is an integer from 1 to 3; nZ? is an integer from 1 to 4; nf? is an integer such that nZ?+nf? is equal to 8; and nf is an integer such that nZ+nf is equal to 6.Type: ApplicationFiled: June 22, 2007Publication date: August 20, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Antonella Di Meo, Rosaldo Picozzi
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Publication number: 20090203830Abstract: The invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer having a melt flow index (MFI) of less than 10 g/10 min. as measured according to ASTM D-1238 under a piston load of 5 kg polymer A; from 0.05 to 5% by weight of A at least one (per)fluoropolyether, polymer B; and from 0 to 10% by weight of A of at least one per(halo)fluoropolymer polymer C. The addition of a (per)fluoropolyether B and, optionally, of a per(halo) fluoropolymer C advantageously enables improvement of rheological behavior of thermoplastic partially fluorinated fluoropolymer A, making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the inventions are the process for manufacturing said thermoplastic fluoropolymer composition and the articles thereof.Type: ApplicationFiled: June 27, 2006Publication date: August 13, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Julio A. Abusleme, Giulio Brinati, Pier Antonio Guarda
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Publication number: 20090202883Abstract: Catalyst-polymer liquid dispersion (LD) comprising (i) catalyst particles, (ii) polymer particles consisting of at least one (per)fluoro sulfonyl fluoride polymer in the —SO2F form, and (iii) an aqueous suspending medium. Catalyst coated membrane precursor (CCMP), catalyst coated membrane (CCM) and catalytic ionomeric ink (CII) derived therefrom and methods for their manufacture. Catalyst coated membrane (CCM-CII) derived from said (CII).Type: ApplicationFiled: June 25, 2007Publication date: August 13, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Alessandro Ghielmi, Luca Merlo, Gilberto Nucida, Vincenzo Arcella
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Publication number: 20090192259Abstract: Use in LAN cable applications, as materials for the coating of the primary cable and for the external jacket, of TFE thermoprocessable perfluoropolymers comprising perfluoroalkylvinylethers in the following amounts, expressed as percent by weight on the total of the monomers: a) 0-5.5% of perfluoromethylvinylether (PMVE); b) 0.4-4.5% of perfluoroethylvinylether (PEVE) and/or perfluoropropylvinylether (PPVE); when a) is present, then a)+b) ranges from 1.5% to 5.5% by weight on the total of the monomers; optionally c) 0-6% of hexafluoropropene (HFP); the TFE amount being the complement to 100% by weight.Type: ApplicationFiled: February 20, 2007Publication date: July 30, 2009Applicant: Solvay Solexis S.p.AInventors: Pasqua Colaianna, Giulio Brinati, Aldo Sanguineti
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Publication number: 20090171004Abstract: The invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer having a melt flow index (MFI) of less than 10 g/10 min, as measured according to ASTM D-1238 under a piston load of 5 kg polymer A; from 0.05 to 5% by weight of A at least one (per)fluoropolyether, polymer B; and from 0 to 10% by weight of A of at least one per(halo)fluoropolymer polymer C. The addition of a (per)fluoropolyether B and, optionally, of a per(halo)fluoropolymer C advantageously enables improvement of rheological behavior of thermoplastic partially fluorinated fluoropolymer A, making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the inventions are the process for manufacturing said thermoplastic fluoropolymer composition and the articles thereof.Type: ApplicationFiled: June 27, 2006Publication date: July 2, 2009Applicant: Solvay Solexis S.p.AInventors: Julio A. Abusleme, Giulio Brinati, Pier Antonio Guarda
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Patent number: 7544752Abstract: TFE-based thermoprocessable copolymers having the following composition, expressed in percentage by moles on the total of the monomers: A) from 0.01 to 15% of the monomer of formula: CF2?CFOCF2OCF3??(a); A1) tetrafluoroethylene from 99.99 to 85%; optionally B) one or more (per)fluorinated comonomers having at least one unsaturation of ethylene type, different from TFE; the sum of the molar percentages A)+B) being such as to give polymers showing at least one melting peak at the thermogravimetric analysis (DSC).Type: GrantFiled: July 28, 2005Date of Patent: June 9, 2009Assignee: Solvay Solexis S.p.A.Inventors: Francesco Triulzi, Marco Apostolo, Vito Tortelli, Marco Galimberti
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Patent number: 7534845Abstract: Fluorovinyl ethers having the formula CFX?CXOCF2OR, wherein R is a C2-C6 linear, branched or C5-C6 cyclic (per) fluoroalkyl group, or a C2-C6 linear, branched (per)fluoro oxyalkyl group containing from one to three oxygen atoms; when R is fluoroalkyl or fluorooxyalkyl group as above defined, it can contain from 1 to 2 atoms, equal or different, selected from the following: H, Cl, Br, I; X?F, H; and homopolymers or polymers obtainable polymerizing said Fluorovinyl ethers with at least another polymerizable monomer.Type: GrantFiled: December 18, 2006Date of Patent: May 19, 2009Assignee: Solvay Solexis S.p.A.Inventor: Walter Navarrini
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Patent number: 7534323Abstract: Use for the oleo-repellent paper sizing of carboxylic perfluoropolyethers of formula T-O—Rf-T??(I) wherein T=—CF2—COOH or —CF2CF2—COOH and Rf is a (per)fluoropolyoxyalkylene chain.Type: GrantFiled: June 2, 2004Date of Patent: May 19, 2009Assignee: Solvay Solexis, S.p.A.Inventors: Paolo Iengo, Piero Gavezotti
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Patent number: 7534825Abstract: Dispersions of fluorinated polymers substantially free from fluorinated surfactants, having high stability to shear combined with high stability to segregation, said dispersions comprising one or more anionic surfactants having the following general formula (1): Y?-(P1)n-CH(Y)-(P2)n?-Y???(1) wherein: Y, Y? and Y? are anionic or nonionic groups, with the proviso that at least one of Y, Y? or Y? is an anionic group and at least one of the remaining of Y, Y? or Y? is a nonionic group; p1 and p2, equal or different, are linear or branched alkylene groups, optionally containing one or more unsaturations, having a number of carbon atoms from 1 to 10, preferably from 1 to 6; n and n? equal or different, are zero or 1.Type: GrantFiled: December 3, 2004Date of Patent: May 19, 2009Assignee: Solvay Solexis S.p.A.Inventors: Marco Malvasi, Valeri Kapeliouchko
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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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Publication number: 20090108501Abstract: A fluoropolymer [polymer (F)], a polymerisation process for its manufacture, and a moulding process using such fluoropolymer [polymer (F)]. The polymerisation process comprises polymerising at least one fluorinated monomer in a polymerization medium, in which the polymerization medium is mixed by means of a stirring system comprising at least two counter-rotating impellers. Surprisingly and advantageously, the polymerization occurs without fouling or deposit formation on the reactor walls, and moreover, occurs with improved homogeneity, without composition, pressure or temperature gradients, thus enabling obtaining homogeneous polymer composition with no risk of local overheating. A polymer (F) obtained from such process has improved morphology (percentage of organized structures, i.e.Type: ApplicationFiled: April 6, 2007Publication date: April 30, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Vincenzo Arcella, Valeri Kapeliouchko, Stefano Ferrero, Aniello Gargiulo
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Publication number: 20090105420Abstract: This invention pertains to a thermoplastic fluoropolymer composition comprising: at least one thermoplastic hydrogen-containing fluoropolymer [polymer (A)]; and from 0.1 to 10% by weight of (A) of at least one per(halo)fluoropolymer chosen among tetrafluoroethylene (TFE) copolymers having a dynamic viscosity at a shear rate of 1 rad sec?1 of less than 10 Pa sec at a temperature of 280° C. [polymer (B)]. The addition of a TFE copolymer [polymer (B)] of low melt viscosity advantageously enables improvement of rheological behavior of thermoplastic hydrogen-containing fluoropolymer (A), making possible processing in less severe conditions and yielding final parts with outstanding surface aspect and good homogeneity and coherency. Still objects of the invention are a process for manufacturing said thermoplastic fluoropolymer composition and the articles, such as shaped articles, films, cable sheathing, pipes, flexible pipes, hollow bodies comprising said thermoplastic fluoropolymer composition.Type: ApplicationFiled: April 23, 2007Publication date: April 23, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventors: Julio Abusleme, Alessio Marrani
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Patent number: 7514512Abstract: VDF-based curable fluoroelastomers having glass transition temperature lower than ?35° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application.Type: GrantFiled: July 28, 2005Date of Patent: April 7, 2009Assignee: Solvay Solexis S.p.A.Inventors: Marco Apostolo, Francesco Triulzi, Vito Tortelli, Marco Galimberti
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Publication number: 20090042316Abstract: Use of flat surfaces comprising perfluorinated polymers in the determination of the binding constant of two interacting molecular species by using measurements of reflected light intensity, said surface comprising at least one molecule with the receptor function adsorbed or immobilized on said surface, and at least one ligand which interacts with the receptor.Type: ApplicationFiled: March 14, 2007Publication date: February 12, 2009Applicant: SOLVAY SOLEXIS S.P.A.Inventor: Mattia Bassi
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Patent number: 7488787Abstract: Perfluoroelastomers curable by peroxidic way having glass transition temperature lower than ?10° C. and an amount of —COF end groups in the polymer lower than the sensitivity limit of the method using the IR spectroscopy in Fourier transform described in the present application.Type: GrantFiled: July 28, 2005Date of Patent: February 10, 2009Assignee: Solvay Solexis S.p.A.Inventors: Marco Apostolo, Francesco Triulzi, Vito Tortelli, Marco Galimberti
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Publication number: 20090018244Abstract: A fluoropolymer composition comprising: at least one thermoplastic partially fluorinated fluoropolymer [polymer (F)]; water; less than 15% wt (based on total weight of composition) of a water-soluble solvent mixture [mixture (M)] comprising: at least one alcohol solvent [solvent (A)]; at least one glycol derivative solvent having a boiling point of at least 100° C. [solvent (GD)], wherein the solvent (GD) is a derivative of a compound comprising at least two hydroxyl groups, wherein at least one of the hydroxyl group has been derivatized to yield an ether or an ester bond. Another object of the present invention is a process for manufacturing said composition. Still another object of the invention is the use of the composition of the invention for coating. Still another object of the invention is a coated article, obtained using the composition of the invention.Type: ApplicationFiled: December 4, 2006Publication date: January 15, 2009Applicant: SOLVAY SOLEXIS, S.p.A.Inventors: Fabio Polastri, Tiziana Poggio, Julio A. Abusleme
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Publication number: 20090008596Abstract: Use as heat transfer fluids in the presence of metals and/or Lewis acids of mixtures comprising: (A) hydrofluoroethers and/or hydrofluoropolyethers, liquid under the environmental conditions (25° C., 1 atm); (B) a compound having a fluoropolyether structure having end groups selected from the pyridine, amine, aryl classes; and having a number average molecular weight comprised between 400 and 10,000.Type: ApplicationFiled: February 22, 2007Publication date: January 8, 2009Applicant: SOLVAY SOLEXIS S.p.A.Inventors: Silvia Petricci, Pier Antonio Guarda, Giuseppe Marchionni
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Patent number: 7468387Abstract: Imidoalkancarboxylic acids of formula (I) are described, wherein A, X and M are as defined in the application, said acids being in a crystalline form which in contact with water gives rise to crystals having sizes lower than 30 micron.Type: GrantFiled: July 8, 2003Date of Patent: December 23, 2008Assignee: Solvay Solexis S.p.A.Inventors: Ugo Piero Bianchi, Roberto Garaffa
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Patent number: 7439297Abstract: A composition comprising: A) 50-99.9% by weight of at least a copolymer (1) of ethylene (E) with chlorotrifluoroethylene (CTFE) wherein CTFE is comprised between 53 and 70% by moles, having a crystallinity in the range 5-45%; B) 0.1-50% by weight of a fine powder of a nucleating agent, having an average particle size lower than 50 micron and a melting temperature higher than 300° C.Type: GrantFiled: September 24, 2004Date of Patent: October 21, 2008Assignee: Solvay Solexis S.p.A.Inventors: Julio A. Abusleme, Claudia Manzoni