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US 12,454,595 B1Granted
Polyalkylene glycol terminated poly-carbodiimides, and process for forming same
AssigneeEvoco Limited
InventorsJason James Robinson, Alexandros Vasileiou, Janhu Ho, Zhifang Zhang, Guerino Sacripante
Life of this patent
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Abstract
A polyalkylene glycol terminated poly-carbodiimide has formula 1: 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.
Claims14
An aqueous dispersion comprising:
- a polyurethane, and
- a polyalkylene glycol terminated poly-carbodiimide of formula 1:
- 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.
6 more elements
Dependencies are inferred from the claim text.