Dual cure cathodic electrocoating process

Details Dual cure cathodic electrocoating process Dual cure cathodic electrocoating process

1976-02-17

1977-05-24

Williams, Howard S.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25D 1306, C25D 1310

Patent

active

040254097

ABSTRACT:
An electrocoating composition containing a polymer having pendant tertiary amine groups, a polymer containing pendant mercaptan groups, a bis-maleimide cross-linking agent, and a photosensitizer can be electrodeposited onto a cathode substrate disposed within an aqueous electrocoating bath. The amine groups and the mercaptan groups are protonated with acid to render the polymers water dispersible prior to electrodeposition and are adapted to become deprotonated upon electrodeposition. Full cure of the electrodeposited coating on the cathode substrate is obtained by the combination of heat curing and ultraviolet radiation curing. In a specific embodiment of the present invention, a single polymer contains both the pendant tertiary amine groups and pendant mercaptan groups.

REFERENCES:
patent: 3875067 (1975-04-01), DeSorgo et al.
patent: 3954587 (1976-04-01), Kokawa
Journal of Paint Technology, vol. 44, No. 571 (Aug. 1972) pp. 33-36.

Affiliated with

Also associated with

Rating

Dual cure cathodic electrocoating process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual cure cathodic electrocoating process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual cure cathodic electrocoating process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-535289