US 12,325,953 B2
Composite component containing a polychloroprene and/or polyurethane binder
Peter Kueker, Leverkusen (DE); Martin Melchiors, Leichlingen (DE); Michael Janz, Hüllhorst (DE); and Anton Naue, Schladming (AT)
Assigned to Covestro Deutschland AG, Leverkusen (DE)
Appl. No. 17/289,787
Filed by Covestro Deutschland AG, Leverkusen (DE)
PCT Filed Oct. 28, 2019, PCT No. PCT/EP2019/079386
§ 371(c)(1), (2) Date Apr. 29, 2021,
PCT Pub. No. WO2020/089163, PCT Pub. Date May 7, 2020.
Claims priority of application No. 18203867 (EP), filed on Oct. 31, 2018.
Prior Publication US 2021/0395945 A1, Dec. 23, 2021
Int. Cl. D06N 3/04 (2006.01); D04H 1/587 (2012.01); D04H 1/64 (2012.01); D06N 3/00 (2006.01); D06N 3/14 (2006.01)
CPC D06N 3/04 (2013.01) [D04H 1/587 (2013.01); D04H 1/64 (2013.01); D06N 3/0088 (2013.01); D06N 3/14 (2013.01); D06N 3/144 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A composite component obtained by a process comprising the steps of:
i) applying an aqueous composition comprising a polychloroprene dispersion and/or a polyurethane dispersion to at least one nonwoven web;
ii) coagulating the aqueous composition on the nonwoven web by contacting with a coagulant and/or heating to 80 to 220° C. in order to form a semifinished product comprising a binder formed from the aqueous composition;
iii) optionally applying a decoration including an adhesive film;
iv) then shaping the semifinished product from step ii) or iii) by pressing and/or heating to 30 to 220° C., in order to obtain the composite component; and
v) optionally applying a layer to a portion or the whole surface of the composite component and then optionally applying a decoration,
wherein the aqueous composition comprises at least one thickener,
wherein the aqueous composition further comprises an aqueous silicon dioxide dispersion in the amount of 9.9 to 90% by weight, based on the total weight of the nonvolatile components of the aqueous composition.