High-mooney NDBR having mooney jump
Increasing the Mooney viscosity in a stepwise manner in the production of high-molecular-weight polybutadiene having more than 95 wt.% cis-1,4 units and less than 1 wt% 1,2-vinyl units, comprises: (i) polymerizing at least one monomer comprising butadiene and/or isoprene, in the presence of at least...
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| creator | Gross Thomas Hardy Dave Kloppenburg Heike Le-Sattler Alicia Zhang Yan Lucassen Alex |
| description | Increasing the Mooney viscosity in a stepwise manner in the production of high-molecular-weight polybutadiene having more than 95 wt.% cis-1,4 units and less than 1 wt% 1,2-vinyl units, comprises: (i) polymerizing at least one monomer comprising butadiene and/or isoprene, in the presence of at least one inert, organic solvent and in the presence of at least one catalyst based on neodymium carboxylate at temperatures of -20[deg] C to 150[deg] C; (ii) terminating the polymerization by adding protic compounds; and (iii) adding sulfur chlorides to the polymerizate. Increasing the Mooney viscosity in a stepwise manner in the production of high-molecular-weight polybutadiene having more than 95 wt.% cis-1,4 units and less than 1 wt% 1,2-vinyl units, comprises: (i) polymerizing at least one monomer comprising butadiene and/or isoprene, in the presence of at least one inert, organic solvent and in the presence of at least one catalyst based on neodymium carboxylate at temperatures of -20[deg] C to 150[deg] C; (ii) terminating the polymerization by adding protic compounds; and (iii) adding sulfur chlorides to the polymerizate. The sulfur chlorides are treated with a carboxylic acid, fatty acid, and/or fatty acid ester before adding to the polymerizate. Independent claims are also included for: (1) a high molecular weight neodymium-catalyzed polybutadiene obtained by the above mentioned method; and (2) rubber mixtures comprising a polybutadiene. |
| format | Patent |
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Increasing the Mooney viscosity in a stepwise manner in the production of high-molecular-weight polybutadiene having more than 95 wt.% cis-1,4 units and less than 1 wt% 1,2-vinyl units, comprises: (i) polymerizing at least one monomer comprising butadiene and/or isoprene, in the presence of at least one inert, organic solvent and in the presence of at least one catalyst based on neodymium carboxylate at temperatures of -20[deg] C to 150[deg] C; (ii) terminating the polymerization by adding protic compounds; and (iii) adding sulfur chlorides to the polymerizate. The sulfur chlorides are treated with a carboxylic acid, fatty acid, and/or fatty acid ester before adding to the polymerizate. Independent claims are also included for: (1) a high molecular weight neodymium-catalyzed polybutadiene obtained by the above mentioned method; and (2) rubber mixtures comprising a polybutadiene.</description><language>eng</language><subject>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 ; TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20171219&DB=EPODOC&CC=US&NR=9845366B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20171219&DB=EPODOC&CC=US&NR=9845366B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Gross Thomas</creatorcontrib><creatorcontrib>Hardy Dave</creatorcontrib><creatorcontrib>Kloppenburg Heike</creatorcontrib><creatorcontrib>Le-Sattler Alicia</creatorcontrib><creatorcontrib>Zhang Yan</creatorcontrib><creatorcontrib>Lucassen Alex</creatorcontrib><title>High-mooney NDBR having mooney jump</title><description>Increasing the Mooney viscosity in a stepwise manner in the production of high-molecular-weight polybutadiene having more than 95 wt.% cis-1,4 units and less than 1 wt% 1,2-vinyl units, comprises: (i) polymerizing at least one monomer comprising butadiene and/or isoprene, in the presence of at least one inert, organic solvent and in the presence of at least one catalyst based on neodymium carboxylate at temperatures of -20[deg] C to 150[deg] C; (ii) terminating the polymerization by adding protic compounds; and (iii) adding sulfur chlorides to the polymerizate. Increasing the Mooney viscosity in a stepwise manner in the production of high-molecular-weight polybutadiene having more than 95 wt.% cis-1,4 units and less than 1 wt% 1,2-vinyl units, comprises: (i) polymerizing at least one monomer comprising butadiene and/or isoprene, in the presence of at least one inert, organic solvent and in the presence of at least one catalyst based on neodymium carboxylate at temperatures of -20[deg] C to 150[deg] C; (ii) terminating the polymerization by adding protic compounds; and (iii) adding sulfur chlorides to the polymerizate. The sulfur chlorides are treated with a carboxylic acid, fatty acid, and/or fatty acid ester before adding to the polymerizate. 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Increasing the Mooney viscosity in a stepwise manner in the production of high-molecular-weight polybutadiene having more than 95 wt.% cis-1,4 units and less than 1 wt% 1,2-vinyl units, comprises: (i) polymerizing at least one monomer comprising butadiene and/or isoprene, in the presence of at least one inert, organic solvent and in the presence of at least one catalyst based on neodymium carboxylate at temperatures of -20[deg] C to 150[deg] C; (ii) terminating the polymerization by adding protic compounds; and (iii) adding sulfur chlorides to the polymerizate. The sulfur chlorides are treated with a carboxylic acid, fatty acid, and/or fatty acid ester before adding to the polymerizate. Independent claims are also included for: (1) a high molecular weight neodymium-catalyzed polybutadiene obtained by the above mentioned method; and (2) rubber mixtures comprising a polybutadiene.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | 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 TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS |
| title | High-mooney NDBR having mooney jump |
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