Arlanxeo Deutschland Gmbh

Lanxess Deutschland Gmbh

Thomas Gross

Werner Obrecht

Norbert Steinhauser

Heike Kloppenburg

Alex Lucassen

Fernanda Albino

Alicia Le-Sattler

Dave Hardy

David Hardy

Yan Zhang

Judy Elizabeth Douglas

Cold flow-reduced polymers having good processing characteristics have, at the ends of the polymer chains, a silane-containing carboxyl group of the formula (I) where Rand Rare the same or different and are each an H, alkyl, alkoxy, cycloalkyl, cycloalkoxy, aryl, aryloxy, alkaryl, alkaryloxy, aralkyl or aralkoxy; Rand Rare the same or different and are each an H, alkyl, cycloalkyl, aryl, alkaryl or aralkyl radical; A is a divalent organic radical.

Cold flow reduced polymers with good processing behaviour

Polymers are functionalized at chain ends thereof with silane-containing carboxyl groups of the formula (I) where Rand Rare the same or different and are each an H, alkyl, alkoxy, cycloalkyl, cycloalkoxy, aryl, aryloxy, alkaryl, alkaryloxy, aralkyl or aralkoxy radical; Rand Rare the same or different and are each an H, alkyl, cycloalkyl, aryl, alkaryl or aralkyl radical; and A is a divalent organic radical.

Silane-containing carboxy-terminated polymers

The invention relates to methods for achieving a step increase in the Mooney viscosity in production of high-molecular-weight polybutadiene having &#x3e;95% by weight content of cis-1,4 units and &#x3c;1% by weight 1,2-vinyl content, characterized in that

High-mooney NDBR having mooney jump

The invention relates to an NdBR wet masterbatch comprising &#x2014;neodymium-catalyzed polybutadienes having a high proportion of cis-1,4 units of &#x3e;95% and a low proportion of 1,2-vinyl content of &#x3c;1%, with narrow polydispersity of less than 3, with a Mooney viscosity (ML100&#xb0; C.) between 30 and 90 MU, with a high linearity index (ratio of solution viscosity to Mooney viscosity) of 3 to 10 m Pas/MU and with a Mooney relaxation after 30 seconds of 2 to 12%, the latter being prepared by means of solution polymerization, &#x2014;at least one carbon black, the carbon black having an iodine absorption number (ION) between 85 and 210 mg/g, measured to ASTM D1510-1304, and an oil absorption number (OAN) between 75 and 150 ml/100 g, measured to ASTM D2414, and &#x2014;an oil.

NdBR wet masterbatch

The present invention relates to diene polymers or diene copolymers, wherein the diene polymers or diene copolymers have, at the start of the polymer chains, tertiary amino groups of the formula (Ia), (Ib), (IIa) or (IIb) where 

Carbinol-terminated polymers containing allylamine

The present invention relates to diene polymers, wherein the diene polymers have, at the start of the polymer chains, tertiary amino groups of the formula (I) or (II) where or metal salts thereof or semimetal salts thereof, where

Carbinol-terminated polymers containing amine

The invention relates to a high molecular weight bimodal neodymium-catalysed polybutadiene having a high proportion, &#x3e;95%, of cis-1,4 units and a low proportion, &#x3c;1%, of 1,2-vinyl content, wherein the polybutadiene has a linear polymeric main fraction and a long chain branched polymeric fraction, wherein the slope in the RGM relationship is &#x3e;0.5 for the polymeric main fraction and &#x3c;0.3 for the long chain branched polymeric fraction.

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Wuelfrath, Germany

Thomas Gross