US 12,084,539 B2
Polyisocyanate composition, a polyurethane foam obtained therefrom and use thereof
David Shtern, Wyandotte, MI (US); and Michael J Krupa, Wyandotte, MI (US)
Assigned to BASF SE, Ludwigshafen am Rhein (DE)
Appl. No. 17/268,562
Filed by BASF SE, Ludwigshafen am Rhein (DE)
PCT Filed Aug. 8, 2019, PCT No. PCT/EP2019/071282
§ 371(c)(1), (2) Date Feb. 15, 2021,
PCT Pub. No. WO2020/035382, PCT Pub. Date Feb. 20, 2020.
Claims priority of application No. 18198597 (EP), filed on Oct. 4, 2018.
Prior Publication US 2021/0317256 A1, Oct. 14, 2021
Int. Cl. C08G 18/50 (2006.01); C08G 18/76 (2006.01); C08J 9/14 (2006.01); C08G 101/00 (2006.01)
CPC C08G 18/5096 (2013.01) [C08G 18/7664 (2013.01); C08J 9/146 (2013.01); C08G 2101/00 (2013.01); C08J 2203/162 (2013.01); C08J 2207/04 (2013.01); C08J 2375/08 (2013.01)] 13 Claims
 
1. An isocyanate composition, comprising:
(a) at least one isocyanate,
(b) a first blowing agent, and
(c) at least one surfactant,
wherein the surfactant does not contain any reactive functional group towards NCO and has a Dynamic Surface Tension (DST) in between 40 mN/m to 60 mN/m, when measured at a concentration of 0.1 wt.-% and frequency of 1 Hz in distilled water, and wherein the first blowing agent has a boiling point in between −50° C. to 5° C., and
wherein said composition excludes a polyol.