Dsm IP Assets B.v.

Avient Protective Materials B.v.

Martin Pieter Vlasblom

Roelof R Marissen

Pieter Gijsman

Rigobert Bosman

Christiaan Henri Peter Dirks

Johannes Hendrikus Marie Heijnen

Romain Berthoud

Gerardus Aben

Timothy James Kidd

Evert Florentinus Florimondus De Danschutter

Jorn Boesten

Tom Antonius Philomena Engels

Benjamin B Ackers

Johanna Margaretha Van Wunnik

Piotr Matloka

Johannes Gabriël Marie Drieman

Hans Schneiders

The invention relates to a creep optimized gel-spun fiber comprising a polyethylene fiber body obtained by spinning an UHMWPE comprising alkyl branches (AB) and having an elongational stress (ES), and a ratio of at least 0.2 mm/N, wherein a stabilizer is present inside the fiber body, characterized in that the amount of said stabilizer is between 0.05 and 10 parts by weight based on 100 parts by weight of the amount of the PE forming said fiber body.

UHMWPE fiber

Structures are provided with rigid elements connected together by interconnecting elements in such a way to form a statically determined or statically over-determined structure. The structure includes at least one tension element formed of polymeric fibers having a stabilizing creep of at least 0.3% and at most 10% and a minimum creep rate lower than 1&#xd7;10% per second, wherein the said stabilizing creep and minimum creep are measured at a tension of 900 MPa and a temperature of 30&#xb0; C. The structures may include, for example, framing structures (e.g., a space frame), suspended bodies, platforms, (e.g., a marine platform), or spoked wheels.

Structures having at least one polymeric fiber tension element

The invention relates to an offshore drilling or production vessel comprising a platform and a mooring system attached thereto, said mooring system comprising: i.) a support frame with a winch-drum mounted thereon; ii.) a mooring line for mooring said platform to the ocean floor, said mooring line comprising a first portion and a second portion; wherein said first portion is hauled on and paid off by said winch-drum; wherein said second portion is anchored to the ocean floor; characterized in that the mooring line is a single length mooring line comprising high strength polyolefin fibers; wherein the first portion of the mooring line has a first mass (M1) of polyolefin fibers per unit length and the second portion of the mooring line has a second mass (M2) of polyolefin fibers per unit length; wherein the ratio M1/M2 is greater than 1 and wherein said first portion extends continuously into said second portion through a tapered portion of the mooring line.

Offshore drilling or production vessel with single length mooring line of high strength polyolefin fibers

A product comprising a plurality of interlaced yarns wherein at least a first yarn having a tensile strength, having a value TS in N/tex, said first yarn containing a plurality of UHMWPE fibers having a titer, having a value T in den, wherein the ratio T/TS is at least 5 den.tex/N. The tensile strength is obtained by adjusting the drawing ratio or the UHMWPE filaments/fibers accordingly. The product shows resistance to abrasion. The product can be a rope or round slings, comprising a sheath/jacket comprising said first yarn.

Abrasion resistant product

The invention relates to a creep-optimized ultrahigh molecular weight polyethylene (UHMWPE) fiber obtained by spinning an UHMWPE comprising olefinic branches (OB) and having an elongational stress (ES), and a ratio (OB/1000 C/ES) between the number of olefinic branches per thousand carbon atoms (OB/1000 C) and the elongational stress (ES) of at least 0.2, wherein said UHMWPE fiber when subjected to a load of 600 MPa at a temperature of 70&#xb0; C., has a creep lifetime of at least 90 hours.

Creep-optimized UHMWPE fiber

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Echt, Netherlands

Martin Pieter Vlasblom