US 12,454,595 B1
Polyalkylene glycol terminated poly-carbodiimides, and process for forming same
Jason James Robinson, Toronto (CA); Alexandros Vasileiou, Toronto (CA); Janhu Ho, Woodbridge (CA); Zhifang Zhang, Toronto (CA); and Guerino Sacripante, Oakville (CA)
Assigned to Evoco Limited, Toronto (CA)
Filed by Evoco Limited, Toronto (CA)
Filed on Feb. 7, 2025, as Appl. No. 19/048,541.
Application 19/048,541 is a continuation of application No. 18/823,137, filed on Sep. 3, 2024.
Int. Cl. C08G 18/64 (2006.01); C07C 267/00 (2006.01); C08G 81/00 (2006.01); C09J 5/00 (2006.01); C09J 175/04 (2006.01); D06N 3/00 (2006.01); D06N 3/14 (2006.01); D06N 3/18 (2006.01)
CPC C08G 18/6415 (2013.01) [C07C 267/00 (2013.01); C08G 81/00 (2013.01); C09J 5/00 (2013.01); C09J 175/04 (2013.01); D06N 3/0006 (2013.01); D06N 3/0047 (2013.01); D06N 3/0095 (2013.01); D06N 3/14 (2013.01); D06N 3/183 (2013.01); D06N 2209/10 (2013.01)] 14 Claims
 
1. An aqueous dispersion comprising:
a polyurethane, and
a polyalkylene glycol terminated poly-carbodiimide of formula 1:

OG Complex Work Unit Chemistry
where:
R1 is an aliphatic group from about 5 to about 12 carbon atoms, a cycloaliphatic moiety of from about 6 to about 20 carbon atoms, an isosorbide moiety, a 1,3-furan moiety, an L-lysine alkyl ester moiety, a rosin moiety, a cycloaliphatic unsaturated moiety, or a cardanol moiety;
R2 is hydrogen or a methyl group;
R3 is a methyl, ethyl, or propyl moeity; and
n and m are integers and are each independently between 1 and about 30,
wherein an article made from the aqueous dispersion has a hydrolytic stability in accordance with SATRA™ 344 of between 10 and 16 days.