Kraton Polymers U.S. LLC

Erik Jan Scholten

Willem C Vonk

The present invention provides a polymeric composition that includes a coupled block copolymer having a plurality of arms comprising at least two blocks of a monovinylaromatic hydrocarbon that are located on at least two of the plurality of arms, and at least one block of a conjugated diene located on at least one of the plurality of arms, and optionally one or more block copolymers comprising at least one block of monovinylaromatic hydrocarbon and at least one block of a conjugated diene, the block copolymer may be selected from linear copolymers, linear triblock copolymers, multiarm coupled block copolymers, and mixtures thereof. The molecular weight of the polymeric composition is in the range from about 100 kg/mol to about 400 kg/mol.

Block copolymer and polymer modified bituminous binder composition for use in base course asphalt paving application

An asphalt binder is provided, comprising 85 to 97.5 parts by weight of a bitumen and 16 to 2.5 parts by weigh of a polymer composition, wherein the polymer composition comprises: Furthermore, a porous pavement is claimed, produced from the open or gap-graded mixes, by compacting the asphalt mix mentioned above.

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Amsterdam, Netherlands

Erik Jan Scholten