Coating processes – With post-treatment of coating or coating material – Chemical agent applied to treat coating
Patent
1986-11-17
1988-11-29
Bell, Janyce
Coating processes
With post-treatment of coating or coating material
Chemical agent applied to treat coating
4273855, 427426, 502152, 502155, 502156, 502168, 502169, 502170, 502216, 502242, 502349, 502353, 521118, 521121, 528 55, 528 58, B01J 3100, B05D 304, C08G 1822
Patent
active
047880830
ABSTRACT:
Disclosed is an activatable catalyst which is effective for the reaction of a hydroxyl compound and an isocyanate. Preferably, the catalyst is utilized in the cure of a coating composition of a polyol and a polyisocyanate. The activatable catalyst is activated in the presence of an amine activator or heat and comprises the reaction product of a metal catalyst selected from a tin catalyst, a bismuth catalyst, and mixtures thereof; and a molar excess of a complexing agent. The complexing agent is selected from a mercapto compound, a polyphenol characterized by being reactable with an isocyanate group in the presence of a tertiary amine activator, and mixtures thereof. A single polyol resin may bear both the complexing functionality and the activatable catalyst. Advantageusly, the polyol and polyisocyanate both are aliphatic.
REFERENCES:
patent: 3124543 (1964-03-01), Fowk et al.
patent: 3219589 (1965-01-01), Burke et al.
patent: 3392128 (1968-07-01), Hostettier
patent: 3446780 (1969-05-01), Bertozzi et al.
patent: 3635906 (1972-01-01), Jayawant
patent: 3783152 (1974-01-01), Larsen
patent: 3914198 (1975-10-01), Olstowski
patent: 3972829 (1976-08-01), Michalko
patent: 4022721 (1977-05-01), Ashida
patent: 4038114 (1977-07-01), Oberth
patent: 4081429 (1978-03-01), Wyman
patent: 4237235 (1980-12-01), Mazzucco
patent: 4517222 (1985-05-01), Blegen
Carlson Gary M.
Dammann Laurence G.
Ashland Oil Inc.
Bell Janyce
LandOfFree
Tin or bismuth complex catalysts and trigger cure of coatings th does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tin or bismuth complex catalysts and trigger cure of coatings th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tin or bismuth complex catalysts and trigger cure of coatings th will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-362853