Johns Manville

Other

Johnsmanville Europe Gmbh

Werner Groh

Kiarash Alavi

Uranchimeg Lester

Thomas Stehlin

Michael Schöps

Jörg Lehnert

Jürgen Umminger

Monika Nagl

Hermann Weizenegger

Willi Seiβ

Rolf Schwarz

Wofgang Greiser

Michael Zeiner

Thomas Miowsky

Markus Kohler

Hans-Jürgen Profé

Composites made from at least two plies are described, where one of the outer layers is a layer comprising glass fibers, and in particular is a staple glass fiber nonwoven. The layers have been bonded to one another by needling, and the extent of this needling is such that some of the fibers of the organic nonwoven emerge from the surface of the glass fiber sheet. The composite is then provided with a binder by using a rotating roll for single-side application to the glass fiber surface. The composites are particularly suitable for producing bituminized prefabricated roofing and waterproofing sheets, and as backings for coatings, e.g. PVC coatings.

Laminate with improved properties

In accordance with the invention, a laminate of two or more layers and the method of making it is provided. The laminate includes at least one organic synthetic filament non-woven layer, and at least one woven web or scrim of glass fibers pre-consolidated by a binding agent. The polyester non-wovens and the woven webs or scrims are bound by needling such that a part of the (e.g., polyester) filaments penetrate through the laminate and emerge at the lower surface of the laminate and lie adjacent thereto The formed laminate is subjected to a final consolidation by an acrylate or a styrene binder.

Laminates including two or more layers of organic synthetic filament non-wovens and glass fiber webs and scrims

The present invention provides non-woven laminate that is not subjected to final consolidation by a binder and the production thereof. The laminate includes at least one non-woven mat containing glass staple fibers pre-consolidated with a resin, and at least one non-woven layer of synthetic fibers. The synthetic non-woven layers and the pre-consolidated non-woven mat of glass fibers are bounded together by needling such that a portion of the fibers of the upper synthetic non-woven layer passes through the non-woven mat of glass fibers possibly through the underlying synthetic non-woven layer. The synthetic fibers are heat shrunken and the laminate is binder free.

Non-woven laminate composite

Growing community of inventors

Schwabmünchen, Germany

Werner Groh