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US 2021/0040293 A1Published application
Binding resin for nonwoven fabrics, in particular for manufacturing supports for bituminous membranes, a method for preparing it, and a nonwoven fabric obtained by using said resin
AssigneePOLITEX s.a.s. di FREUDENBERG POLITEX s.r.l.
InventorsMassimo MIGLIAVACCA, Marinella LEVI, Stefano TURRI
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Abstract
There is described a binding resin for nonwoven fabrics, in particular for manufacturing supports for bituminous membranes, consisting of 100% natural, sustainable raw materials. The resin is an aqueous solution consisting of starch, a crosslinking agent of natural origin and a catalyst.
Claims21
1-20. (canceled)
A bituminous membrane, particularly for covering roofs, comprising a nonwoven support which is impregnated with bitumen,
- wherein the nonwoven support is manufactured from fibers of synthetic origin,
- wherein the nonwoven support is further impregnated with a binding resin, and
- wherein the binding resin is an aqueous starch-based solution consisting of a starch, a crosslinking agent of natural origin, a catalyst and optionally one or more additives.
Dependencies are inferred from the claim text.