Abstract: The present invention relates to a low-flammability shingle comprising at least one double-sidedly bituminized textile sheet material to whose surface has been applied a pulverulent or flaky flame protectant at least single-sidedly, and to roofs comprising these shingles.

Abstract: 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.

Abstract: There is disclosed a multilayered filter material comprising nonwovens made of fibers or filaments of identical or different polymers, said filter material being composed of a depth filter and a fine filter which both have a homogeneous density perpendicular to their surface and have been joined together in such a way that the area covered by the bonding dots does not exceed 75%. The depth filter is from 2 to 20 times thicker than the fine filter, and they have different densities. There is also disclosed a process for manufacturing the filter material.

Abstract: A carrier web of a sheet-like fiber material consisting of a glass fiber mat and a mat of synthetic fibers, which and are needled together and are end-consolidated with a polymer-free low-formaldehyde melamine-formaldehyde precondensate, and a process for its preparation are described.The carrier web is preferably end-consolidated with a melamine-formaldehyde precondensate which is partly etherified and/or sulfamate-modified.

Abstract: A nonwoven which comprises fibers or filaments consolidated with a binder and which is suitable for use as a carrier web in roofing sheets which are resistant to jump fire and radiant heat is obtained by applying, together with the binder, solid particles which are resistant to heat and fire and whose spatial extension in at least one dimension is large compared with the effective hole size of the web layer. This size ratio ensures that the solid particles form a layer on the web which becomes firmly bonded to the fiber or filament web.

Abstract: Disclosed is a tubular casing comprising a fiber-reinforced regenerated cellulose wherein the fiber-reinforcement comprises a fiber web comprising first and second edge regions, parallel to the longitudinal axis, which are overlapped and bonded to form a tube; an impregnation layer of a thermoplastic synthetic resin applied on the entire inwardly-facing surface of the fiber-reinforcement and present in a weight per unit area of less than about 50 g/m.sup.2, the impregnation layer comprising the bond for the edge regions; and a regenerated cellulose surface on the outer surface of the fiber-reinforcement. Also disclosed is a process for manufacturing the tubular casing.