Dsm IP Assets B.v.

Avient Protective Materials B.v.

David Michael Cummins

Roelof R Marissen

Dietrich D Wienke

Martin Antonius Van Es

Koen Van Putten

Joke Hendrix

Francois Antoine Marie Op Den Buijsch

Luigi Balzano

Franciscus Wilhelmus Maria Gelissen

Ronnie Jacob Jensz

The present invention relates to a polyolefin fiber comprising polymeric structures, wherein the polymeric structures individually comprise a polycondensate and a functionalized polymer, and the polyolefin fiber is a gel-spun high-performance polyethylene fiber that has a tenacity of at least 1 N/tex. The polymeric structures are immiscible with and dispersed in the polyethylene fiber. The gel-spun high-performance polyethylene fiber is a gel-spun ultrahigh molecular weight polyethylene fiber. The present invention further relates to a process for making the polyolefin fiber comprising the steps of: melt-mixing the polycondensate or a polycondensate containing at least one additive, the functionalized polymer, and optionally the thermoplastic polymer and/or the at least one additive, to form polymeric structures; mixing polyolefin powder, the polymeric structures and a solvent to form a mixture; and spinning and drawing the mixture obtained in step ii) to form the polyolefin fiber comprising the polymeric structures.

Polymer filled polyolefin fiber

Composite panel comprising at least one layer containing at least one tape comprising a thermoplastic polymer selected from the group consisting of polyolefins, polyesters, polyvinyl alcohols, polyacrylonitriles, polyamides or polyketone, wherein the tape has a tensile strength of at least 1.2 GPa and an areal density of between 5 and 150 g/m, and an adhesive in contact with said layer, whereby the amount of the adhesive in contact with one side of the at least one layer is between 0.2 and 15 g/m, wherein the adhesive is a plastomer wherein said plastomer is a random copolymer of ethylene or propylene and one or more Cto Ca-olefin co-monomers and wherein said plastomer has a density as measured according to 1801183 of between 860 and 930 kg/m. In a preferred embodiment the tape comprises an ultra high molecular weight polyethylene. The composite panel is used in a ballistic resistant article.

Composite panels usefully employed in anti-ballistic products and methods to make the same

Film sheet for antiballistic articles

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Echt, Netherlands

David Michael Cummins