| abstract |
The present invention discloses several Michael addition reaction adducts of α, β-unsaturated alkyl carbonyl compounds, in particular acrylamide, comprising vinylamine and amides, esters and acids. In addition, the process for preparing such Michael addition reaction adducts is described. Such adducts are generally useful in paper making and are particularly useful as additives for strengthening dry strength for making paperboard products using paper machines. |