NITRILE GROUP-CONTAINING COPOLYMER RUBBER

The present invention provides a nitrile group-containing copolymer rubber comprising 10 to 60 wt% of an α,β-ethylenically unsaturated nitrile monomer unit and 1 to 60 wt% of an α,β-ethylenically unsaturated dicarboxylic acid monoester monomer unit, and having an iodine value of 120 or less, wherein...

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Bibliographische Detailangaben
1. Verfasser:	SHIONO, Atsuhiro
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The present invention provides a nitrile group-containing copolymer rubber comprising 10 to 60 wt% of an α,β-ethylenically unsaturated nitrile monomer unit and 1 to 60 wt% of an α,β-ethylenically unsaturated dicarboxylic acid monoester monomer unit, and having an iodine value of 120 or less, wherein a processability index Ipro(Ipro= CC× SA) is 0.0030 or less, where the processability index Iprois the product of the carboxyl group content CC, which is the number of moles of carboxyl groups per 100 g of nitrile group-containing copolymer rubber, and the absorbance area SAof a carboxylic anhydride group determined by infrared spectroscopy.