Ems-chemie Ag

Coltene Whaledent Ag

Regenhu Ag

Simon Sutter

J&uuml;rgen Spindler

Martin Schaufelberger

Marc Thurner

Jürgen Spindler

Michael Kuster

Werner Barth

Gunther Sch&auml;ch

Thomas Weller

The invention describes a new synthetic fiber material of polyhydroxyether, as well as a melt-spinning method for its production. The new material can be used, in particular, for stabilization of the reinforcement fibers of high-performance fiber composite materials before they are embedded in the matrix material. During this usage, the polyhydroxyether fiber material dissolves at a temperature above its glass transition temperature entirely in the matrix material, so that the reinforcement fibers can be arranged largely free of kinking. In addition, it forms cross-links with the matrix material to form a homogeneous matrix and thus does not constitute a disruptive third phase in the composite material. The compatibility of the matrix and reinforcement fiber is also improved. It was possible to improve the bending strength of test slabs by 12% as compared to that of reference slabs with polyester filament.

Method for making structural parts with reinforcement fiberes embedded in a matrix material using thermoplastic fibers containing polyhydroxyether

In a core-shroud bicomponent fiber, which exhibits a core and a shroud at least partially enveloping the core, an elevated abrasion behavior, a low compaction under exposure to temperature and pressure and a high strength of the fibers is achieved by having the shroud consist of 45-98% w/w of a first polyamide having a melting point exceeding 280&deg; C., and 2-20% w/w of a layer silicate.

Sheath-core bicomponent fiber and its applications

Growing community of inventors

Chur, Switzerland

Simon Sutter