Modified polymers with a high proportion of cis-position...

C - Chemistry – Metallurgy – 08 – F

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C08F 36/04 (2006.01) C08C 19/26 (2006.01) C08C 19/42 (2006.01) C08F 2/06 (2006.01) C08F 4/44 (2006.01) C08F 12/08 (2006.01) C08F 36/06 (2006.01) C08J 5/00 (2006.01)

Patent

CA 2444713

The invention relates to polymers which are modified along a polymer chain on the basis of conjugated dienes or conjugated dienes and vinyl aromatic compounds having a proportion of vinyl aromatic compounds of up to 60 wt. %, a proportion of cis-position double bonds of >= 92 %, an average molecular weight of between 50 000 - 1 500 000 g/mol and a gel content of <= 5 %. The inventive polymers can be used in the production of all kinds of moulded bodies, whereby the technical and physical characteristics thereof are improved, particularly compared to prior art.

La présente invention concerne des polymères modifiées le long de la chaîne polymère, à base de diènes conjugués ou de diènes conjugués et de composés aromatiques vinyliques, la proportion de composés aromatiques vinyliques pouvant atteindre 60 % en poids, le pourcentage de liaison doubles en position cis étant supérieur ou égal à 92 %, la masse moléculaire moyenne étant comprise entre 50000 et 1500000 g/mole et la quantité de gel étant inférieure ou égale à 5 %. Les polymères selon la présente invention peuvent servir à produire des corps moulés de toutes sortes présentant des caractéristiques techniques et physiques supérieures à celles corps moulés de la technique antérieure.

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