ABC-BLOCKCOPOLYMERISATE AUF BASIS VON BUTADIEN UND ISOPREN, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG
ABC block copolymers on the basis of butadiene, isoprene and optionally styrene, are provided by a polymerization process wherein the resultant block copolymer comprises: about 40 to 75 wt % of a block A based on butadiene (uniformly distributed vinyl group content less than about 15 wt %), up to ab...
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Main Authors | , , , , , |
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Format | Patent |
Language | German |
Published |
18.02.1988
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Edition | 4 |
Subjects | |
Online Access | Get full text |
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Summary: | ABC block copolymers on the basis of butadiene, isoprene and optionally styrene, are provided by a polymerization process wherein the resultant block copolymer comprises: about 40 to 75 wt % of a block A based on butadiene (uniformly distributed vinyl group content less than about 15 wt %), up to about 25 wt % of a block B based on butadiene and isoprene (vinyl content less than about 15 wt %) or based on butadiene (vinyl content more than about 75 wt %) about 20 to 55 wt % of a block C based on butadiene and isoprene (vinyl content more than about 75 wt %). The ABC block copolymers are useful for the production of tire treads. |
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Bibliography: | Application Number: DE19873710002 |