| 摘要 |
A method for adjusting pH in an aqueous coating composition having an initial pH less than 7 by adding to the aqueous coating composition a compound having formula (V) wherein R2 and R3 independently are hydrogen, methyl, ethyl, hydroxymethyl, or R2 and R3 combine with a carbon to which they are attached to form a five-membered or six-membered saturated carbocyclic ring; R4 is hydrogen or C1-C4 alkyl; R5 is hydrogen, methyl, ethyl or hydroxymethyl; R6 is hydrogen, hydroxyethyl, C1-C10 alkyl or -CH2C(R5)(N(R7)2)CH2OH; and R7 is hydrogen or methyl. |
