BRANCHED FLUORINE-CONTAINING ELASTOMER

PROBLEM TO BE SOLVED: To provide a fluorine-containing elastomer composition that maintains the normal-state properties of a branched fluorine-containing elastomer while reducing viscosity, without increasing the usage of an expensive monomer.SOLUTION: A vinylidene fluoride (VdF) elastomer has a cro...

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Bibliographische Detailangaben
Hauptverfasser:	FUKUOKA SHOJI, KISHINE MITSURU, FUJISAWA MANABU
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fluorine-containing elastomer composition that maintains the normal-state properties of a branched fluorine-containing elastomer while reducing viscosity, without increasing the usage of an expensive monomer.SOLUTION: A vinylidene fluoride (VdF) elastomer has a crosslinking site that is peroxide-crosslinkable, has a number average molecular weight between 1,000 and 300,000, and has a Mark-Houwink gradient a of less than 0.6 when the absolute molecular weight and intrinsic viscosity is plotted on a Mark-Houwink plot, with the x-axis being absolute molecular weight and the y-axis being intrinsic viscosity.