Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...
Patent
1994-11-04
1997-05-27
Krass, Frederick
Chemistry: electrical and wave energy
Processes and products
Electrophoresis or electro-osmosis processes and electrolyte...
523415, 523404, 525528, 528 45, 528 73, 427386, 204506, C08L 6300
Patent
active
056332971
ABSTRACT:
An electrodepositable composition is provided comprising: a non-gelled, cationic, water-dispersible resin, electrodepositable on a cathode, which is derived from a polyepoxide and which contains in the resin molecule cationic salt groups, beta-hydroxy ester groups, active hydrogen groups including free phenolic hydroxyl groups, and capped isocyanate groups. 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 during pretreatment before electrodeposition.
REFERENCES:
patent: 3793278 (1974-02-01), De Bona
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), Scholzer et al.
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: 4536558 (1985-08-01), Kordomenos
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.
Progress in Organic Coatings, "Blocked Isocyanates" by Z. W. Wicks, Jr., 3 (1975) pp. 73-99.
General Motors Engineering Standards, Materials and Processes-Procedures--Chip Resistance of Coating (GM9408P), Jul. 1991, pp. 1-8.
Karabin Richard F.
Valko Joseph T.
Krass Frederick
PPG Industries Inc.
Shideler Krisanne
Stachel Kenneth J.
Uhl William J.
LandOfFree
Cationic resin containing capped isocyanate groups suitable for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cationic resin containing capped isocyanate groups suitable for , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cationic resin containing capped isocyanate groups suitable for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2329590