Functionalized ketone-aldehyde condensation resins

A process for preparing a functionalized resin, comprising:

• condensing a ketone selected from the group consisting of:
• acetone;
• acetophenone;
• ortho-, meta- or para-phenylacetophenone;
• methyl ethyl ketone;
• 3-pentanone;
• 2-heptanone;
• 3-heptanone;
• 4-heptanone;
• 2-octanone;
• 3-octanone;
• 2-undecanone;
• 5-methylhexan-2-one;
• 4-methylpentan-2-one;
• cyclopentanone;
• cyclododecanone;
• mixtures of 2,2,4- and 2,4,4-trimethylcyclopentanone;
• cycloheptanone;
• cyclooctanone;
• cyclohexanone;
• o-, m- or p-methoxyacetophenone;
• o-, m- or p-[N,N-dialkylaminophenyl]ethanone;
• alkyl-substituted cyclohexanones or diones or mixtures thereof
• and an aldehyde in the presence of at least one amino alcohol selected from the group consisting of:
• N,N-dimethylaminoethanol, trimethylaminoethylethanolamine, 3-dimethylaminopropan-1-ol, butyldiethanolamine, butylethanolamine, dibutylethanolamine, diethylethanolamine, ethylethanolamine, dimethylaminoethoxyethanol, methyldiethanolamine, N,N-dimethylisopropanolamine, N-methylethanolamine, diethanolamine, diisopropanolamine, triisopropanolamine, N-(2-hydroxyethyl)piperidine, diisopropanol-p-toluidine, N,N-di(2-hydroxyethyl)aniline, N-(2-hydroxyethyl)aniline, 2-(2-aminoethoxy)ethanol, 3-amino-1-propanol, 5-amino-1-pentanol, monoethanolamine, N-(2-aminoethyl)ethanolamine, isopropanolamine, 2,2′-(phenylamino)diethanol, 1-(2-hydroxyethyl)piperazine, 4-(2-hydroxyethyl)morpholine, or derivatives or mixtures thereof,
• wherein said aldehyde used is a 20% to 40% by weight aqueous formaldehyde solution, said amino alcohol is incorporated covalently into said resin and said condensation is conducted in situ.