PRODUCTION OF REINFORCED POLYBUTADIENE RUBBER

PRODUCTION OF REINFORCED POLYBUTADIENE RUBBER

PURPOSE:To produce the titled rubber of excellent properties in good yields, by effecting the cis-1,4-polymerization of 1,3-butadiene, adding 1,3-polybutadiene and effecting the 1,2-polymerization of 1,3-butadiene in the presence of a specified 1,2-polymerization catalyst. CONSTITUTION:0.01-20mmol o...

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Hauptverfasser: UTADA NORIBUMI, ASHITAKA HIDETOMO, ISHIKAWA HIDEO, MAEHARA NOBUNORI, ODA YASUSHI
Format: Patent
Sprache:eng
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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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creator UTADA NORIBUMI
ASHITAKA HIDETOMO
ISHIKAWA HIDEO
MAEHARA NOBUNORI
ODA YASUSHI
description PURPOSE:To produce the titled rubber of excellent properties in good yields, by effecting the cis-1,4-polymerization of 1,3-butadiene, adding 1,3-polybutadiene and effecting the 1,2-polymerization of 1,3-butadiene in the presence of a specified 1,2-polymerization catalyst. CONSTITUTION:0.01-20mmol of CS2 and 0.2-5mmol of water are added to 1l of the total volume of 1,3-butadiene and an inert organic solvent, and the 1,3- butadiene is polymerized in the presence of a cis-1,4-polymerization catalyst obtained from a Co compound and a halogen-containing organoaluminum compound to form a cis-1,4-polybutadiene. To 100pts.wt. produced polymerization mixture are added 1-50pts.wt. 1,3-butadiene, an organoaluminum compound of the formula (wherein R is a 1-6C alkyl, phenyl or cycloalkyl), which acts as a 1,2-polymerization catalyst beside CS2, and a Co compound. The 1,3-butadiene is polymerized to form a polybutadiene rubber comprising a boiling n-hexane-insoluble portion of 5-30wt% and a boiling n-hexane-soluble portion of 95- 70wt%.
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CONSTITUTION:0.01-20mmol of CS2 and 0.2-5mmol of water are added to 1l of the total volume of 1,3-butadiene and an inert organic solvent, and the 1,3- butadiene is polymerized in the presence of a cis-1,4-polymerization catalyst obtained from a Co compound and a halogen-containing organoaluminum compound to form a cis-1,4-polybutadiene. To 100pts.wt. produced polymerization mixture are added 1-50pts.wt. 1,3-butadiene, an organoaluminum compound of the formula (wherein R is a 1-6C alkyl, phenyl or cycloalkyl), which acts as a 1,2-polymerization catalyst beside CS2, and a Co compound. 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CONSTITUTION:0.01-20mmol of CS2 and 0.2-5mmol of water are added to 1l of the total volume of 1,3-butadiene and an inert organic solvent, and the 1,3- butadiene is polymerized in the presence of a cis-1,4-polymerization catalyst obtained from a Co compound and a halogen-containing organoaluminum compound to form a cis-1,4-polybutadiene. To 100pts.wt. produced polymerization mixture are added 1-50pts.wt. 1,3-butadiene, an organoaluminum compound of the formula (wherein R is a 1-6C alkyl, phenyl or cycloalkyl), which acts as a 1,2-polymerization catalyst beside CS2, and a Co compound. 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subjects 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
title PRODUCTION OF REINFORCED POLYBUTADIENE RUBBER
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