NOVEL BLOCK COPOLYMER COMPOSITIONS

The present invention relates to novel compositions comprising (a) anionic block copolymers of mono alkenyl arenes and conjugated dienes where one of the blocks is a controlled distribution copolymer of a conjugated diene and mono alkenyl arene having a specific arrangement of the monomers in the co...

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Main Authors BENING, ROBERT, C, WILLIS, CARL, L, NISHI, TOMOMI, WRIGHT, KATHRYN, J, HANDLIN, DALE, L, MASUKO, NORIO
Format Patent
LanguageEnglish
French
Published 13.11.2008
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Summary:The present invention relates to novel compositions comprising (a) anionic block copolymers of mono alkenyl arenes and conjugated dienes where one of the blocks is a controlled distribution copolymer of a conjugated diene and mono alkenyl arene having a specific arrangement of the monomers in the copolymer block, and (b) tailored softening modifiers have a particular structure that results in a surprising improvement in properties for the composition. Also included are processes for the manufacturing such novel compositions and various end-uses and applications for such compositions. L'invention concerne de nouvelles compositions qui renferment: (a) des copolymères blocs anioniques d'arènes de monoalcényle et de diènes conjugués parmis lesquels un bloc constitue un copolymère à distribution maîtrisée de diène conjugué et d'arène de monoalcényle où les monomères obéissent à une disposition spécifique dans le bloc de copolymère, et (b) des modificateurs de ramollissement adaptés présentant une structure particulière qui conduit à une amélioration étonnante des propriétés de la composition. Par ailleurs, l'invention concerne des procédés permettant la fabrication de ces nouvelles compositions ainsi que diverses applications et utilisations finales correspondantes.
Bibliography:Application Number: WO2007US06665