US 12,458,150 B2
Shaped PU foam articles
Annegret Terheiden, Alpen (DE); Rüdiger Landers, Essen (DE); Daniela Hermann, Düsseldorf (DE); Jane Garrett Kniss, Kempton, PA (US); Robert Borgogelli, Midlothian, VA (US); Kathie W. Hogg, Mechanicsville, VA (US); and Isabelle Denise Wessely, Karlsruhe (DE)
Assigned to Evonik Operations GmbH, Essen (DE)
Filed by Evonik Operations GmbH, Essen (DE)
Filed on Jun. 12, 2020, as Appl. No. 16/899,883.
Claims priority of provisional application 62/876,062, filed on Jul. 19, 2019.
Prior Publication US 2021/0015269 A1, Jan. 21, 2021
Int. Cl. A47C 27/00 (2006.01); A47C 27/05 (2006.01); A47C 27/20 (2006.01); B65B 31/02 (2006.01); C08G 18/16 (2006.01); C08G 18/18 (2006.01); C08G 18/24 (2006.01); C08G 18/32 (2006.01); C08G 18/48 (2006.01); C08G 18/73 (2006.01); C08G 18/76 (2006.01); C08J 9/00 (2006.01)
CPC A47C 27/05 (2013.01) [A47C 27/20 (2013.01); B65B 31/02 (2013.01); C08G 18/3203 (2013.01); C08G 18/73 (2013.01); C08G 18/7621 (2013.01); C08G 18/7657 (2013.01); C08G 2110/0008 (2021.01); C08G 2110/0083 (2021.01)] 17 Claims
 
1. A shaped polyurethane foam article, wherein the shaped polyurethane foam article has been obtained by reaction of at least one polyol component and at least one isocyanate component in the presence of a compound (1a) and at least one compound of formula (1b) and at least one blowing agent,
wherein formula (1b) is defined as follows:

OG Complex Work Unit Chemistry
wherein in formula (1b):
X represents nitrogen, amines of formula NR3R4, urea of formula N(R5)C(O)N(R6) or urea of formula N(R5)C(O)NR6R7,
Y represents an amine group of formula NR8R9 or an ether group of formula OR9,
R1 and R2 represent identical or different hydrocarbon radicals having 1 or 3 carbon atoms optionally bearing an OH group,
R3 and R4 represent hydrogen or methyl,
R5, R6 and R7 represent hydrogen, and
R8 and R9 represent methyl,
m=3,
n=3,
i=0 to 2,
wherein at least one of the groups X, Y, OF R1, R2, R3, R4, R5, R6, and R7, bears a functionality which is reactive with a component which forms the polyurethane matrix,
based on its starting volume the shaped polyurethane foam article is compressed by at least 30% and kept in compressed form by an auxiliary means for at least 20 hours said compound (1a) is N, N, N′-trimethyl-N′-(3-aminopropyl) bis (aminoethyl) ether and
said shaped polyurethane foam article has a rebound resilience of 1 to <10%, measured in accordance with DIN EN ISO 8307:2008-03.