公开(公告)号：US12104052B2

公开(公告)日：2024-10-01

申请号：US17471478

申请日：2021-09-10

Applicant: BASF SE

Inventor： Henrik Schmidt ,  Stefan Jesberger ,  Thorsten Habeck

IPC: C08L33/26 ,  C08L3/02 ,  C08L25/14 ,  C08L29/04 ,  C08L33/08 ,  C08K3/22 ,  E04D1/20 ,  E04D1/22

CPC classification number: C08L33/26 ,  C08L3/02 ,  C08L25/14 ,  C08L29/04 ,  C08L33/08 ,  C08K2003/2206 ,  E04D1/205 ,  E04D1/22

Abstract: The present invention relates to a consolidated nonwoven consolidated by treatment with an aqueous binder composition comprising:



a polymer P,
a polyvinyl alcohol,
optional a starch compound S and
optional at least one metal compound M selected from the group consisting of magnesium, calcium and zinc, in the form of an oxide, hydroxide, carbonate or bicarbonate,

wherein the polymer P is obtainable by free radical aqueous emulsion polymerization of a monomer mixture of

75 to 99% by weight of one or more monomers a) selected from the group consisting of esters of acrylic and/or methacrylic acid with alkanols of 1 to 12 carbon atoms, aliphatic conjugated diene and aromatic vinyl compound
1 to 25% by weight of one or more monomers b) selected from the group consisting of N-methylolacrylamide, N-methylolmethacrylamide, glycidyl methacrylate and carboxylic acid-functional ethylenically unsaturated monomers
≥0 to 15% by weight of one or more further ethylenically unsaturated monomer c) different from any of monomers a) and b)

wherein the amounts of monomers a) to c) sum to 100 wt %,

the water-based binder composition, the process of for producing the consolidated nonwoven and its use as reinforcing insert for bituminized roofing membranes.