| abstract |
Cationically polymerizable materials, such as epoxide resins, phenoplasts, and aminoplasts, are polymerized by passing an electric current through a composition comprising n (A) the cationically polymerizable material, and n (B) a boron trifluoride complex, n between an anode and a cathode in contact with the composition, whereby polymerized material is deposited on the anode. n Typical complexes (B) are those of boron trifluoride with primary, secondary, or tertiary amines or with trialkyl or triaryl phosphines. n The method is a particularly suitable means for coating conductive substrates, giving a rapid cure without the need for special formulations to render the polymers electrodepositable. |