Saint-Gobain Vetrotex France S.a.

Saint-Gobain Technical Fabrics Europe

Low & Bonar B.v.

Marc Berkhoff

Michel Droux

Eric Daniel

Leonardus Lucas

Ype Van Der Zijpp

Leonie Stigter

A method to manufacture a carrier material including a nonwoven layer of fibers and threads extending in the longitudinal direction of the carrier material includes the steps of supplying a nonwoven layer of fibers, supplying a scrim comprising weft threads including a polymer having a melting temperature equal to or less than the lowest melting temperature of the thermoplastic fibers of the nonwoven layer of fibers, and thermally bonding the scrim to the nonwoven layer of fibers.

Method for providing a carrier material

The invention concerns a process for preparing a complex sheet comprising a layer of drylaid glass fibers and a layer of organic fibers, comprising: The so obtained complex fibrous structure shows a low tendency to delaminate and can be impregnated with asphalt or bitumen, and used in the field of roofing, sealing covering or membranes.

Complex comprising a drylaid veil of glass fibres, and a nonwoven fabric of organic fibres

A process for preparing a complex sheet including a layer of drylaid glass fibers and a layer of organic fibers. The process includes mechanical needling or fluid entanglement, e.g. hydroentanglement, of a nonwoven fabric of continuous organic fibers and of a veil of non-preconsolidated continuous glass fibers, the nonwoven fabric of organic fibers and the veil of glass fibers being juxtaposed and needles being sent from the same side as the nonwoven fabric of organic fibers, to make a sheet, and then application of a binder to the bilayer. The so obtained complex fibrous structure shows a low tendency to delaminate and can be impregnated with asphalt or bitumen, and can be used in the field of roofing, sealing covering, or membranes.

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Ede, Netherlands

Marc Berkhoff