Habasit Ag

Roland Tröesch

Michael Tyler

Brent Whitehead

Marshall Wright

Andreas Lehmann

Anton Heimen

Bodo Wixmerten

Markus Niederberger

Bernd Roser

A woven fabric comprising: a) A first layer of first uncrimped weft filaments; b) a second layer of second uncrimped weft filaments; wherein for each of the first uncrimped weft filaments there is one corresponding second uncrimped weft filament, and vice versa, to form successive filament pairs of first and second uncrimped weft filaments, c) crimped warp filaments having four different weave types c1-c4, but each weave type consisting of entwining around first uncrimped weft filaments; passing between first and second uncrimped weft filaments; entwining around second uncrimped weft filaments; and passing again between first and second uncrimped weft filaments; and d) uncrimped warp filaments passing between the first uncrimped weft filaments and the second uncrimped weft filaments of all filament pairs; wherein the fabric does not comprise crimped warp filaments which entwine around the first uncrimped weft filaments and the second uncrimped weft filaments in alternating manner. This fabric has good resistance to shear delamination and wear-and-tear delamination of an impregnation () impregnated into the fabric. Accordingly the fabric can be used in belts intended for applications wherein shear stress between the belt's top surface () and the belt's bottom surface () in the belt's longitudinal direction may occur.

Fabric and belt containing it for shear stressing applications

A sheet material () consisting of an mixture consisting essentially of: a) 10-50 percent by weight of random-oriented fibres, and; b) 90-50 percent by weight of a thermoplastic or thermoplastic elastomer; the weight percentages being based on the overall homogeneous mixture; and the sheet material having at room temperature a Shore D hardness of 40 to 85, preferably of 40 to 60, more preferably of 45 to 55. The sheet material () is used as a support in punching applications or as the top layer in punching belts ().

Sheet material and punching tape containing same

Growing community of inventors

Weil am Rhein, Germany

Roland Tröesch