Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1999-11-19
2000-10-24
Sellers, Robert E. L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523414, 523417, 523420, 525423, 525504, 525533, C08G 5914, C08G 5944, C08G 5950, C08K 320, C08L 6302
Patent
active
061368946
ABSTRACT:
An aqueous epoxy resin system suitable for coatings comprises (a) water, (b) at least one epoxy resin and (c) a curing agent prepared by (i) reacting at least one polyamine having at least 3 active amine hydrogen atoms per molecule and at least one epoxy resin in an epoxy equivalent to to polyamine mole ratio of from 0.9:1 to 1:10 to obtain an amine-terminated intermediate; (ii) reacting the amine-terminated intermediate with from 0.5 to 25 weight percent, based on the amine-terminated intermediate, of an acid-terminated polyalkylene glycol to yield an amine-terminated curing agent. The amine-terminated intermediate can be capped with a monoepoxide in an amine hydrogen to epoxy groups ratio of from about 1.5:1 to 30:1 prior to reaction with the acid-terminated polyalkylene glycol, or the amine-terminated curing agent following step (ii) can be capped with a monoepoxide in an amine hydrogen atoms to epoxy groups ratio of from about 2:1 to 30:1.
REFERENCES:
patent: 3998771 (1976-12-01), Feneis, Jr. et al.
patent: 4352898 (1982-10-01), Albers
patent: 5017675 (1991-05-01), Marten et al.
patent: 5032629 (1991-07-01), Hansen et al.
patent: 5118729 (1992-06-01), Piechocki
patent: 5204385 (1993-04-01), Naderhoff
patent: 5319004 (1994-06-01), Marten et al.
patent: 5369152 (1994-11-01), Naderhoff et al.
patent: 5382606 (1995-01-01), Butikofer
patent: 5489630 (1996-02-01), Walker
patent: 5643976 (1997-07-01), Arora et al.
patent: 5741835 (1998-04-01), Stark
patent: 5750595 (1998-05-01), Arora et al.
patent: 5786429 (1998-07-01), Allen
Back Gayle Edward
Dangayach Kailash
Elmore Jimmy D.
Ghosh Kalyan
Stark, deceased Charles J.
Iwata Yukike
Sellers Robert E. L.
Shell Oil Company
LandOfFree
Aqueous epoxy resin system with curing agent from reacting acid- does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Aqueous epoxy resin system with curing agent from reacting acid-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aqueous epoxy resin system with curing agent from reacting acid- will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1964896