High throw power electrodeposition system

Details High throw power electrodeposition system High throw power electrodeposition system

1991-07-19

1993-04-13

Niebling, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525127, 525440, 525528, 2041817, C08L 7504

Patent

active

052023834

ABSTRACT:
A high throw power electrodeposition system with improved rupture voltage is disclosed. The electrodepositable coating includes an active hydrogen-containing ionic resin and a gamma hydroxy urethane curing agent, such as a curing agent having the structural feature: ##STR1## The gamma hydroxy urethane curing agent can be prepared by reacting a polyisocyanate with a 1,3-polyol, and in particular with 2,2,4-trimethylpentane-1,3-diol. The composition can also include a curing agent having an alkyl urethane structural feature which can be the reaction product of a polyisocyanate and a blocking agent which is a fatty alcohol. A method for coating a conductive substrate with the above-described composition is also disclosed. The method includes passing an electric current between the conductive substrate serving as a first anode and a second anode to deposit the composition and the conductive substrate.

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patent: 4748200 (1988-05-01), Nasu
patent: 5021502 (1991-06-01), Patzschke et al.

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