Bituminous membranes with biodegradable binder
AssigneeCarl Freudenberg KG
InventorsArno Bieser, Katharina Ellmer, Sandra Villing-Falusi, Antonio La Porta, Luca Assumma
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Abstract
Subject of the invention is a nonwoven, wherein the nonwoven fibers are organic polymer fibers, and wherein the nonwoven is consolidated with an aqueous binder, wherein the binder comprises protein and a polyphenolic compound from natural origin. Preferably, the nonwoven carrier is highly suitable for producing bituminous membranes. Subject of the invention are also uses, methods, bituminous membranes, binders and building materials, which are related to the nonwoven carrier.
Claims20
A porous nonwoven for preparing membranes by impregnation of the nonwoven with bitumen, wherein all nonwoven fibers of the porous nonwoven are organic polymer fibers, wherein the nonwoven is consolidated with an aqueous binder, and wherein the binder comprises protein and a polyphenolic compound from natural origin.
A method for consolidating a porous nonwoven substrate and/or for improving the mechanical resistance of the porous nonwoven substrate and/or improving the dimensional stability of the porous nonwoven substrate at a temperature of at least 180° C., comprising impregnating the nonwoven substrate with an aqueous binder, wherein all the nonwoven fibers of the porous nonwoven are organic polymer fibers, and wherein the binder comprises protein and a polyphenolic compound from natural origin.
Dependencies are inferred from the claim text.