| abstract |
An organic amine salt compounds of general formula A n− [B m+ ] p (I) is disclosed, wherein A n− is a CO 2 -donating anion with a valence of −n, wherein n=1, 2 or 3; each B m+ comprises: ammonium ion, hydrazinium ion and/or organic amine B cation; wherein n m = 1 - 10 ; 0 < p ≤ n m ; nand wherein A n− is one or more selected from a group consisting of following anions: (a) carbamate orcarbazate; (b) carbonate; (c) formate; (d) bicarbonate; (e) organic monocarbonate; (f) organic poly-carbamate; (g) orthoformate; or (h) organic poly-carbonate. The compound of general formula (I) has at least one of hydroxyalkyl group linked to N atom, i.e., has alkanolamine residue. They can be used as polyurethane foaming agent, and most of them can be used as polystyrene foaming agent or polyvinyl choride foaming agent. |