Coated high strength fibers
AssigneeDsm IP Assets B.V.
InventorsRigobert Bosman, Gerardus Aben, Hans Schneiders
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Abstract
The invention relates to a high strength fibers comprising a coating of cross-linked silicone polymer, and ropes made thereof. The fibers are preferably high performance polyethylene (HPPE) fibers. The coating comprising a cross-linked silicone polymer is made from a coating composition comprising a cross-linkable silicone polymer. The rope shows markedly improved service life performance in bending applications such as cyclic bend-over-sheave applications. The invention also relates to the use of a cross-linked silicone polymer in a rope for an improvement of bend fatigue resistance.
Claims18
A coated high strength fiber comprising a high performance polyethylene (HPPE) fiber, and a coating comprising a cross-linked silicone polymer on the fiber, wherein the cross-linked silicone polymer has a degree of cross-linking of at least 20%.
A rope comprising high performance polyethylene (HPPE) fibers, wherein the rope includes a coating comprising a cross-linked silicone polymer having a degree of cross-linking of at least 20%.
A method of making coated high performance polyethylene (HPPE) fibers, comprising the steps of:
- a) applying a coating composition comprising a cross-linkable silicone polymer to the HPPE fibers;
- and
- b) cross-linking the silicone polymer to achieve a degree of cross-linking thereof of at least 20%.
A method of making a rope comprising high performance polyethylene (HPPE) fibers, comprising the steps of:
- a) applying a coating composition comprising a cross-linkable silicone polymer to the HPPE fibers;
- b) cross-linking the silicone polymer to achieve a degree of cross-linking thereof of at least 20%;
- and
- c) constructing a rope from the coated fibers obtained in step b).
A strand comprising high performance polyethylene (HPPE) fibers, wherein the strand includes a coating comprising a cross-linked silicone polymer having a degree of cross-linking of at least 20%.
Dependencies are inferred from the claim text.