Solvay Solexis, Inc.

Solvay Specialty Polymers Italy S.p.a.

Solvay Sa

Milena Stanga

Margherita Albano

Claudia Manzoni

Giovanni Comino

Francesco Triulzi

Giulio Brinati

Riccardo Pieri

Bradley Lane Kent

Vincenzo Arcella

Alessio Marrani

Christine Hamon

Stefano Arrigoni

Francesco Maria Triulzi

Anna Maria Bertasa

The present invention pertains to a process for manufacturing a solid composite separator, said process comprising the following steps: (i) providing a liquid composition [composition (L)] comprising, preferably consisting of:

Solid composite fluoropolymer separator

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: &#x2014;R, Rand R, equal to or different from each other, are independently selected from a hydrogen atom and a C-Chydrocarbon group, and &#x2014;Ris a hydrogen atom or a C-Chydrocarbon 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 &#x3bc;m, as measured according to ISO 13321. The present invention also pertains to a process for manufacturing an electrode using said aqueous composition, to an electrode comprising a metal substrate coated on at least one surface with said aqueous composition and to use of said electrode for manufacturing a non-aqueous-type electrochemical device. 

Aqueous vinylidene fluoride-(meth)acrylic co-polymer latex, electrode and lithium ion secondary battery using the same

A peroxide curable perfluoroelastomer comprising: recurring units derived from tetrafluoroethylene (TFE); recurring units derived from perfluoroethylvinylether (EVE), in an amount of between 2 and 17% by moles, with respect to total recurring units derived from TFE, perfluoromethylvinylether (MVE) and EVE; and recurring units derived from perfluoromethylvinylether (MVE), in an amount of between 23 and 35% by moles, with respect to total recurring units derived from TFE, perfluoromethylvinylether (MVE) and EVE. A process for its manufacture and its use for the manufacture of cured articles.

Perfluoroelastomer

The present invention pertains to a fluoropolymer [polymer (F)] comprising: wherein: The invention also pertains to a process for the manufacture of said polymer (F) and to use of said polymer (F) as binders for the manufacture of electrodes or for the manufacture of membranes.

Vinylidene fluoride copolymers

A peroxide curable perfluoroelastomer comprising: recurring units derived from tetrafluoroethylene (TFE); and recurring units derived from perfluoromethylvinylether (MVE); such perfluoroelastomer possessing a Mooney Viscosity (ML2+9) at 121&#xb0; C. of from 25 to 140 MU, when measured according to ASTM D1646 standard, and comprising such MVE recurring units in an amount of from 26 to 33% by moles with respect to total moles of TFE and MVE. A process for the manufacture of such perfluoroelastomer, and cured articles obtainable therefrom.

A (per)fluoroelastomeric composition curable by peroxidic way comprising for 100 phr of (per)fluoroelastomer: 

(Per)fluoroelastomeric compositions

This invention pertains to sealing articles of vulcanized (per)fluoroelastomer compositions incorporating particles of a vinylidene fluoride (VDF) polymers having a Shore A hardness of at least 85 when determined according to ASTM D 2240 Type A Durometer method, and a compression set of less than 30%, when determined according to ASTM D395 at 200&#xb0; C. for 70 h on O-ring according to ASTM D1414, and to a process for their manufacture by vulcanizing-molding and thermal post-treating at a temperature above the melting point of the VDF polymer.

Vulcanized (per) fluoroelastomer sealing articles

Extrudable (per)fluoroelastomer compositions comprising crosslinkable (per)fluoroelastomers having:

Vulcanizable fluoroelastomer compositions comprising:

Vulcanisable fluoroelastomeric compositions

A (per)fluoroelastomeric composition curable by peroxidic way comprising: 

VDF-based curable fluorelastomers, having a glass transition temperature from &#x2212;10&#xb0; C. to &#x2212;35&#xb0; C., comprising: B) monomer of formula: CF&#x2550;CFOCFOCF(a), C) one or more comonomers selected from: tetrafluoroethylene (TFE), per-fluoromethylvinylether (PMVE), perfluoropropene (HFP), and an amount of &#x2014;COF end groups in the polymer lower than the sensitivity limit of the method which uses the FT-IR spectroscopy described in the present application.

Fluoroelastomers

VDF-based curable fluoroelastomers, having a glass transition temperature lower than &#x2212;49&#xb0; C., preferably lower than &#x2212;50&#xb0; C., and having the following composition, as percent moles: A) from 25% to 50%, preferably from 30% to 45%, of the monomer of formula: CF2&#x2550;CFOCFOCF(a); B) one or more (per)fluorinated comonomers having at least one unsaturation of ethylene type in amounts from 75% to 50%; preferably from 70% to 55%; said one or more comonomers comprising vinylidene fluoride (VDF) in amounts from 50% to 75% on the total of the monomer moles; the sum of the molar percentages of the monomers being 100%; said fluoroelastomers containing an amount of &#x2014;COF end groups in the polymer lower than the sensitivity limit of the method reported in the description.

VDF curable fluoroelastomers, ionically cured, having a compression set after a time of 24 h (ASTM D 39/B) at &#x2212;10&#xb0; C. lower than 60%, preferably lower than 50% and at &#x2212;25&#xb0; C. lower than 90%, preferably lower than 75%, comprising hexafluoropropene (HFP) in amounts higher than 10% by moles and one vinylether of formula: CF&#x2550;CFOCFOCF(a), an amount of &#x2014;COF and groups in the polymer lower than the sensitivity limit of the method using the FT-IR spectroscopy described in the present application.

Ionically curable fluoroelastomers based on vinylidenfluoride (VDF) comprising:

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Milena Stanga