A cation aminomethylation polyacrylamide which reacted with formaldehyde and amine was prepared by Mannich reaction.

Study and development of a Mannich based corrosion inhibitor for hydrochloric acid acidifying;

Synthesis and antiinflammatory activity of the Mannich bases of the substituted cyclopentanones;

According to the characteristics of oil reservoir at high temperature, the two corrosion inhibitors that are imidazoline and Mannich base were synthesized.

A mannich's bases inhibitors XY-3 was synthesized by a new method.

Some MC indexes are calculated for 5 Mannich's bases, namely: DEAP, PDPP, PAMCH, CHAP, and PAP, for which the corrosion inhibitory capacity can be found in literature where else.

Mannich base ashless dispersants were synthesized by the following two steps: the reaction of high active polyisobutylene(PIB) with phenol in the presence of a Lewis acid catalyst to form alkylphenols,then the reaction of alkylphenols with formaldehyde and polyalkenepolyamines to obtain Mannich bases.