| 主权项 |
1. A composition comprising one or more sources of metal ions, one or more sources of glyoxylic acid, salts or mixtures thereof and one or more tertiary amine compounds, salts, halides or mixtures thereof having a formula:wherein R1, R2 and R3 may be the same or different and are linear or branched, substituted or unsubstituted hydroxy(C1-C10)alkyl, linear or branched, substituted or unsubstituted carboxy(C1-C10)alkyl, linear or branched, substituted or unsubstituted (C1-C10)alkylamine, linear or branched, substituted or unsubstituted (C1-C10)alkyl phosphonic acid, a moiety having a formula:wherein R4 and R5 may be the same or different and are linear or branched, substituted or unsubstituted hydroxy(C1-C10)alkyl, linear or branched, substituted or unsubstituted carboxy(C1-C10)alkyl, linear or branched, substituted or unsubstituted (C1-C10)alkylamine, linear or branched, substituted or unsubstituted (C1-C10)alkyl phosphonic acid, or moiety —(CH2)a—N—((CH2)b)2—(P(O)(OH)2) (IIa) where a and b may be the same or different and are integers of 1 to 6, m is an integer from 1 to 6, B is a moiety having a formula:wherein R6 and R7 may be the same or different and are hydrogen, hydroxyl, carboxyl, hydroxy(C1-C3)alkyl, carboxy(C1-C3)alkyl, (C1-C3)alkyl, or B may be a substituted or unsubstituted (C5-C6)cycloalkyl ring and m=1, A is a chemical bond with the nitrogen of formula (I) or a moiety having a formula:wherein R8, R9, R10 and R11 are the same or different and are hydrogen, hydroxyl, (C1-C3)alkyl, n, p, q may be the same or different and are integers of 1 to 6, with the proviso that when any two of R1, R2 and R3 are carboxymethyl moieties or salts thereof the third cannot be formula (II) where A is a chemical bond, m is 2, R6 and R7 are hydrogen and R4 and R5 are carboxymethyl moieties or salts thereof; and a molar ratio of the one or more tertiary amine compounds to the glyoxylic acid or salts thereof is 0.05:1 to 15:1, the compositions are formaldehyde-free. |
