The invention relates to an efficient process for the preparation of isoolefin polymers such as polyisobutene or butyl rubber by polymerization of isobutene and optionally further monomers in the presence of an initiator system prepared by continuously contacting at least one boron or aluminium compound and at least one initiator.

The present invention provides an organometal catalyst having a cationic metal complex and a borate-based bulky anion, where the metal is one or more selected from the group consisting of metals in group 13, a method for preparing the same, and a method for preparing an oligomer or a polymer using the same.

The present invention provides an organometal catalyst having a cationic metal complex and a borate-based bulky anion, where the metal is one or more selected from the group consisting of metals in group 13, a method for preparing the same, and a method for preparing an oligomer or a polymer using the same.

The present invention provides an organometal catalyst having a cationic metal complex and a borate-based bulky anion, where the metal is one or more selected from the group consisting of metals in group 13, a method for preparing the same, and a method for preparing an oligomer or a polymer using the same.

The invention relates to a thermoplastic resin composition comprising an additive formulation, the use of said formulation as a liquid additive concentrate in a thermoplastic resin composition, methods for improving specific properties of additives in a thermoplastic resin composition, the use of specific carriers for improving said properties, and a kit of parts for preparing a thermoplastic resin composition. In particular, specific carrier substances enhance the technical efficiency of additives, if these are introduced into polymers derived from ethylenically unsaturated monomers, such as polyolefins.

The invention relates to a thermoplastic resin composition comprising an additive formulation, the use of said formulation as a liquid additive concentrate in a thermoplastic resin composition, methods for improving specific properties of additives in a thermoplastic resin composition, the use of specific carriers for improving said properties, and a kit of parts for preparing a thermoplastic resin composition. In particular, specific carrier substances enhance the technical efficiency of additives, if these are introduced into polymers derived from ethylenically unsaturated monomers, such as polyolefins.

The present invention relates to processes and apparatus useful for (fast) ionic polymerisation of liquid monomer(s) containing reaction mixture for the production of the corresponding polymer(s).

The present invention relates to processes and apparatus useful for (fast) ionic polymerisation of liquid monomer(s) containing reaction mixture for the production of the corresponding polymer(s).

The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 80 mol %. The present invention further relates to novel isobutene polymers.

The present invention relates to a novel process for preparing high-reactivity isobutene homo- or copolymers with a content of terminal vinylidene double bonds per polyisobutene chain end of at least 80 mol %. The present invention further relates to novel isobutene polymers.