	US 11,691,355 B2
	3D spacer fabric reinforced PU composite and its use
YingHao Liu, Shanghai (CN); Feng Chao Hu, Shanghai (CN); Tao Liu, Solna (SE); Hairu Long, Shanghai (CN); Si Chen, Shanghai (CN); and Daniel Freidank, Lemfoerde (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 16/342,593
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Oct. 13, 2017, PCT No. PCT/EP2017/076153 § 371(c)(1), (2) Date Apr. 17, 2019, PCT Pub. No. WO2018/073109, PCT Pub. Date Apr. 26, 2018.
Claims priority of application No. PCT/CN2016/000574 (WO), filed on Oct. 17, 2016.
Prior Publication US 2019/0255783 A1, Aug. 22, 2019
Int. Cl. C08G 18/66 (2006.01); B29C 70/24 (2006.01); B29C 70/48 (2006.01); B29D 35/12 (2010.01); C08G 18/42 (2006.01); C08G 18/48 (2006.01); D04B 21/16 (2006.01); C08G 18/20 (2006.01); B29C 44/12 (2006.01); C08G 18/32 (2006.01); B29C 70/04 (2006.01); B29K 75/00 (2006.01); B29K 267/00 (2006.01)

CPC B29C 70/24 (2013.01) [B29C 44/1276 (2013.01); B29C 70/04 (2013.01); B29C 70/48 (2013.01); B29D 35/122 (2013.01); C08G 18/2063 (2013.01); C08G 18/3206 (2013.01); C08G 18/3275 (2013.01); C08G 18/42 (2013.01); C08G 18/4291 (2013.01); C08G 18/4854 (2013.01); C08G 18/664 (2013.01); C08G 18/6688 (2013.01); D04B 21/16 (2013.01); B29K 2075/00 (2013.01); B29K 2267/003 (2013.01); B29K 2267/006 (2013.01); B29K 2313/00 (2013.01); B29K 2995/0094 (2013.01); C08G 2110/0083 (2021.01); C08G 2410/00 (2013.01); D10B 2401/08 (2013.01); D10B 2403/021 (2013.01); D10B 2501/043 (2013.01)]

19 Claims

1. A 3D spacer fabric reinforced PU composite, which is made from a polyurethane (PU) foam reinforced by a 3D spacer fabric,

wherein the 3D spacer fabric comprises a first layer of material that is separated from a second layer of material by spacer yarns, wherein an inclination angle of the spacer yarns is from 65 to 75°, and

wherein the polyurethane is prepared by reacting

(a) a di- or polyisocyanate,

(b) a polyether polyol or polyester polyol and