METHOD FOR PRODUCING CARBON FIBER-CONTAINING POLYBUTADIENE COMPOSITION, CARBON FIBER-CONTAINING POLYBUTADIENE COMPOSITION, CARBON FIBER-CONTAINING RUBBER COMPOSITION, METHOD FOR PRODUCING RUBBER COMPOSITION FOR BELT, RUBBER COMPOSITION FOR BELT AND RUBBER BELT

• Main Author: HARUTA ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 02.07.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

To provide a method for producing a carbon fiber-containing polybutadiene composition excellent in fatigue characteristics, tensile characteristics or the like with less carbon fiber content.SOLUTION: There is provided a method for producing a carbon fiber-containing polybutadiene composition which comprises: a 1-1 step of preparing a mixture of 1,3-butadiene and an inactive organic solvent; a 1-2 step of adding a catalyst comprising water, an organoaluminium compound and a soluble cobalt compound or a catalyst comprising an organoaluminium compound, a nickel compound and a fluorine compound to the mixture prepared in the 1-1 step, followed by subjecting the 1,3-butadiene to cis-1,4-polymerization; a 1-3 step of subjecting the 1,3-butadiene in the polymerization reaction mixture obtained in the 1-2 step to syndiotactic-1,2-polymerization; and a 1-4 step of mixing the polymerization reaction mixture or a polybutadiene composition obtained through the 1-3 step with a carbon fiber (a).SELECTED DRAWING: None 【課題】少ない炭素繊維含有量で疲労特性、引張特性などに優れた炭素繊維含有ポリブタジエン組成物の製造方法を提供する。【解決手段】本発明の炭素繊維含有ポリブタジエン組成物の製造方法は、１，３−ブタジエンと、不活性有機溶媒との混合物を調製する第１−１工程と、前記第１−１工程で調製された前記混合物に水、有機アルミニウム化合物及び可溶性コバルト化合物からなる触媒、又は、有機アルミニウム化合物、ニッケル化合物及びフッ素化合物からなる触媒を添加して、前記１，３−ブタジエンをシス−１，４重合する第１−２工程と、前記第１−２工程で得られた重合反応混合物中の前記１，３−ブタジエンをシンジオタクチック−１，２重合する第１−３工程と、前記第１−３工程を経て得られた重合反応混合物或いはポリブタジエン組成物と炭素繊維（ａ）を混合する第１−４工程と、を備えることを特徴とする。【選択図】なし