Cariflex Pte. Ltd.

Laurens Engelen

Wouter De Jong

Henk Van De Weg

Maarten Cornelis Tromp

Adrie Van Der Huizen

Branched block copolymers, derived from alkenyl aromatic hydrocarbon-1,3-diene monomer system, and branched polyisoprene homopolymers, derived from isoprene, are obtained by polymerization in the presence of an anionic initiator; at a temperature from 0° C. to 100° C.; followed by coupling with a multifunctional coupling agent of formula (RO)Si—Y—Si(OR), wherein Rand Rare independently C-Calkyl groups; and Y is a C-Calkylene group. The polymers thus obtained can be used in many applications, including rubber cements having high solids content and low zero shear viscosities, and for producing aqueous latices therefrom.

Growing community of inventors

Amsterdam, Netherlands

Laurens Engelen