PROCESS FOR PREPARING FLUOROPOLYMERS AND FLUOROELASTOMERS IN PRESENCE OF A NON FLUORINATED SULFONATE TYPE HYDROCARBON CONTAINING SURFACTANT THEREOF

PROCESS FOR PREPARING FLUOROPOLYMERS AND FLUOROELASTOMERS IN PRESENCE OF A NON FLUORINATED SULFONATE TYPE HYDROCARBON CONTAINING SURFACTANT THEREOF

The present invention relates to a process for preparing fluoropolymers or fluoroelastomers in an aqueous medium using a non fluorinated sulfonate type hydrocarbon containing surfactant, said process comprising the steps of: (a) forming an aqueous solution comprising an non-fluorinated, hydrocarbon...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SONI, Navin, CHAUHAN, Rajeev, SHUKLA, Akanksha, DUTTA, Anamika, KUMAR, Gaurav, PATEL, Anand Mohan, RAO, P.s, BHATTACHARYA, B.s
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:The present invention relates to a process for preparing fluoropolymers or fluoroelastomers in an aqueous medium using a non fluorinated sulfonate type hydrocarbon containing surfactant, said process comprising the steps of: (a) forming an aqueous solution comprising an non-fluorinated, hydrocarbon containing, sulfonate anionic type surfactant in a polymerization reactor; (b) pressurizing the reactor with fluoromonomers to form an aqueous emulsion; (c) initiating polymerization of said fluoromonomers; and (d) Propagating the reaction (e) Terminating the reaction after consumption of desired weight of fluoromonomers; wherein the non-fluorinated, hydrocarbon containing, sulfonate type surfactant comprises 18 to 36 carbon atoms, wherein the molecular weight of the fluoropolymer ranges from 1×103 to 9×108 g/mol and wherein said process is devoid of passivating the surfactant.