Modified beta-amino acid ester (aspartate) hardener and its use in polyurea tissue adhesives

摘要

The present invention relates to a compound of formula (I): ## STR1 ## wherein R1, R2 and R3 are each independently the same or various organic groups having no Zerevitinov active hydrogen; R4 is independently Hydrogen, or the same or different organic group having no Zelevitinov active hydrogen, or taken together to form an unsaturated or aromatic ring which may optionally contain heteroatoms, wherein R4 has no Zerevitinov active hydrogen; X is a linear or branched organic group, in which the carbon atoms in the chain may be replaced by heteroatoms as appropriate, which does not have the Zerevitinov active hydrogen N is 0 n≰2; m is 0≰m 2, and n + m = 2. ] The compound shown by this is provided. The present invention also provides a process for producing the compound of formula (I), as well as a polyurea system containing the compound.