Borealis Ag

Ricardo Godoy-Lopez

Markku Vahteri

Ravindra Tupe

John Jamieson

Jarmo Kela

Alexandra Romina Albunia

Floran Prades

Anh Tuan Tran

The present invention is directed to a multimodal polyethylene copolymer comprising a first and a second copolymer of ethylene and at least two alpha-olefin comonomers. Such multimodal copolymers are highly suitable for conversion processes that require a high Draw Down Ratio, like the production of thin films. Such multimodal polyethylene copolymers provide a good impact strength in the sense of a high Dart drop impact strength (DDI) and good isotropy of the films produces thereof. The invention further presents final articles such as films made therefrom.

Multimodal copolymer of ethylene and at least two alpha-olefin comonomers and final articles made thereof

The present invention is directed to a multimodal polyethylene copolymer comprising a first and a second copolymer of ethylene and at least two alpha-olefin comonomers. The multimodal polyethylene copolymer is highly suitable for the production of films providing high impact strength in the sense of high Dart drop impact strength (DDI) and low extractables. The invention further presents final articles such as films made therefrom.

Multimodal polyethylene copolymer

The present invention provides a process of producing a modified polymer composition, which composition comprises a free-radical polymeriseable monomer grafted to a polyolefin backbone. The process comprises contacting, in an extruder, an olefin polymer and the free-radical polymeriseable monomer in the presence of a stable radical in an extruder and extruding the composition.

Process for producing graft copolymers on polyolefin backbone

Growing community of inventors

Linz, Austria

Ricardo Godoy-Lopez