Cationic resin and capped polyisocyanate curing agent suitable f

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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523415, 525528, 528 45, 528 73, 427386, 204500, 204501, 204502, 204504, 204505, 204506, C08L 6300, C08L 6302

Patent

active

057601070

ABSTRACT:
An electrodepositable composition is provided comprising:
(A) a non-gelled cationic resin which is derived from a polyepoxide and which contains in the resin molecule cationic salt groups and active hydrogen groups selected from aliphatic hydroxyl and primary and secondary amino; and present as a separate component
(B) a fully capped polyisocyanate curing agent containing substantially no free isocyanate groups. The electrodepositable composition contains from about 0.02 to 1.0 milliequivalents phenolic hydroxyl groups per gram of resin solids, and from about 0.1 to 2.0 milliequivalents beta-hydroxy ester groups per gram of resin solids. The composition provides excellent corrosion resistance when electrodeposited over steel substrates, and does not require lead in the formulation nor the use of a conventional chrome rinse for the steel substrate pretreatment before electrodeposition.

REFERENCES:
patent: 3793278 (1974-02-01), De Bona
patent: 3799854 (1974-03-01), Jerabek
patent: 3922253 (1975-11-01), Jerabek et al.
patent: 3928156 (1975-12-01), Wismer et al.
patent: 3935087 (1976-01-01), Jerabek et al.
patent: 3959106 (1976-05-01), Bosso et al.
patent: 3984299 (1976-10-01), Jerabek
patent: 4036795 (1977-07-01), Tominaga
patent: 4104147 (1978-08-01), Marchetti et al.
patent: 4134866 (1979-01-01), Tominaga et al.
patent: 4148772 (1979-04-01), Marchetti et al.
patent: 4278580 (1981-07-01), Schmolzer et al.
patent: 4340523 (1982-07-01), Hazan
patent: 4352842 (1982-10-01), Kooymans et al.
patent: 4420574 (1983-12-01), Moriarity et al.
patent: 4423166 (1983-12-01), Moriarity et al.
patent: 4427805 (1984-01-01), Kooijmans et al.
patent: 4432850 (1984-02-01), Moriarity et al.
patent: 4435559 (1984-03-01), Valko
patent: 4468307 (1984-08-01), Wismer et al.
patent: 4504606 (1985-03-01), Kordomenos
patent: 4536558 (1985-08-01), Kordomenos
patent: 4699955 (1987-10-01), Kordomenos et al.
patent: 4931157 (1990-06-01), Valko et al.
patent: 4933056 (1990-06-01), Corrigan et al.
patent: 5074979 (1991-12-01), Valko et al.
patent: 5096556 (1992-03-01), Corrigan et al.
patent: 5147906 (1992-09-01), Nishida et al.
patent: 5283124 (1994-02-01), Fujibayashi et al.
patent: 5416137 (1995-05-01), Turnquist et al.
USSN 08/334,711, filed Nov. 1994, entitled Cationic Resin Containing Capped Isocyanate Groups Suitable for Use in Electrodeposition, Valko et al.
"Blocked Isocyanates" from Progress in Organic Coatings, by Z. W. Wicks, Jr., 3 (1975) pp. 73-99.
General Motors Engineering Standards, Materials and Processes-Procedures--Chip Resistance of Coating (GM9508P), Jul. 1991, pp. 1-8.
Database WPIL 93-365 441, JP 5-271 583 A (abstract) to Kansai Paint Co. Ltd .

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