Johns Manville

Monika Nagl

Bertrand Claude Weiter

Peter Heidel

Michael Schöps

Jürgen Umminger

Werner Groh

Willi Seiβ

Rolf Schwarz

Hans-J&uuml;rgen Profe

Wofgang Greiser

Michael Zeiner

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

An improved bituminized flame-retardant textile material is provided that effectively overcomes bitumin adhesion difficulties associated with products of the prior art wherein the flame-retardant present on the surface of a textile support interfers with and hinders the achievement of bitumin adhesion. An anti-flame agent is applied in a quantity of 20 to 100 grams per square meter over 30 to 90 percent of the upper surface of the textile support. The remaining portions of the upper-surface of the textile support are free of the anti-flame agent. It surprisingly has been found that the surface portions of the textile support that are free of the anti-flame agent provide areas for the achievement of optimum bitumin adhesion with the textile support while still making possible entirely satisfactory flame retardancy for the overall product.

Flame-retarding support inlay with improved adhesion

Growing community of inventors

Augsburg, Germany

Monika Nagl