	US 11,814,469 B2
	Polyurethanes having low emissions of organic compounds
Zeljko Tomovic, Lemfoerde (DE); Sirus Zarbakhsh, Ludwigshafen (DE); and Iran Otero Martinez, Lemfoerde (DE)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 16/964,794
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Jan. 23, 2019, PCT No. PCT/EP2019/051568 § 371(c)(1), (2) Date Jul. 24, 2020, PCT Pub. No. WO2019/149583, PCT Pub. Date Aug. 8, 2019.
Claims priority of application No. 8154960 (EP), filed on Feb. 2, 2018.
Prior Publication US 2021/0054132 A1, Feb. 25, 2021
Int. Cl. C08G 18/76 (2006.01); C08G 18/32 (2006.01); C08G 18/40 (2006.01); C08G 18/42 (2006.01); C08G 18/48 (2006.01); C08G 18/72 (2006.01); C08G 18/79 (2006.01); C08G 18/18 (2006.01); C08G 101/00 (2006.01)

CPC C08G 18/7664 (2013.01) [C08G 18/1808 (2013.01); C08G 18/3281 (2013.01); C08G 18/4018 (2013.01); C08G 18/4238 (2013.01); C08G 18/4241 (2013.01); C08G 18/485 (2013.01); C08G 18/4808 (2013.01); C08G 18/4825 (2013.01); C08G 18/72 (2013.01); C08G 18/724 (2013.01); C08G 18/797 (2013.01); C08G 2101/00 (2013.01); C08G 2110/0083 (2021.01)]

12 Claims

1. A process for producing polyurethanes comprising:

mixing

(a) polyisocyanate,

(b) polymeric compounds having isocyanate-reactive groups,

(d) blowing agents,

(e) chain-extending and/or crosslinking agents, and

(f) auxiliary and/or additive substances

to afford a reaction mixture, and

reacting the reaction mixture to afford a polyurethane,

wherein the polymeric compounds having isocyanate-reactive groups (b) comprise a polyesterol (b1) obtainable by polycondensation of an acid component with an alcohol component, wherein the acid component comprises malonic acid and/or derivatives thereof and the alcohol component comprises an aliphatic dialcohol selected from butanediol, pentanediol, hexanediol, decanediol, or mixtures thereof; and wherein a weight fraction of the polyesterol (b1) based on a total weight of the polymeric compounds having isocyanate-reactive groups (b) is 0.1% to 50% by weight.