METHOD FOR PREPARING LIGHT-COLOURED INDENE-COUMARONE RESIN

A method for preparing a light-colored indene-coumarone resin is here disclosed which comprises the step of polymerizing an aromatic coal fraction raw material having a boiling point of 140 to 240 DEG C in the presence of a Friedel-Crafts type catalyst in a polymerization reactor in which the amount...

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Bibliographische Detailangaben
Hauptverfasser:	SATO, HISATAKE, MAKINO, MASAHARU
Format:	Patent
Sprache:	eng
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:	A method for preparing a light-colored indene-coumarone resin is here disclosed which comprises the step of polymerizing an aromatic coal fraction raw material having a boiling point of 140 to 240 DEG C in the presence of a Friedel-Crafts type catalyst in a polymerization reactor in which the amount of oxygen is restricted to 15 ml or less with respect to 100 g of the aromatic coal fraction raw material oil at room temperature. As a raw material, a mixture is also used which is composed of the above-mentioned aromatic coal fraction and a phenol in an amount of 3 to 30 parts by weight with respect to 100 parts by weight of the aromatic coal fraction.