Synthesis of modified epoxy resins for cathodic electrodepositio

Details Synthesis of modified epoxy resins for cathodic electrodepositio Synthesis of modified epoxy resins for cathodic electrodepositio

1996-12-13

1998-05-19

Gulakowski, Randy

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

Synthetic resins

Processes of preparing a desired or intentional composition...

525506, 525523, C08K 320, C08L 6300

Patent

active

057537267

ABSTRACT:
Epoxy resins for preparing water-dispersible binders for cathodic electrodeposition coating materials, the epoxy resin being preparable by reacting a) polyepoxides having at least one glycidyl group per molecule b) and, optionally, up to 60% by weight, based on the overall epoxy resin reaction product, of aliphatic and/or alicyclic hydroxy compounds having preferably two or on average less than two hydroxyl groups per molecule and a molecular weight of less than 9000 g/mol, c) in the presence of a catalyst consisting of neutral metal salts, such as alkali metal salts and alkaline earth metal salts, zinc salts and nickel salts of tetrafluoroboric, tetrachloroboric, hexafluoro- antimonic,hexachloroantimonic,hexafluorophosphoric, perchlorate and periodic acid, and d) adding a deactivating agent which prevents the epoxy groups reacting further or effectively reduces the rate of such reaction as soon as the phenolic hydroxyl groups have already substantially reacted and at least 0.6% by weight of epoxy groups are still present, based on the overall weight of the epoxy resin reaction product.

REFERENCES:
patent: 4112231 (1978-09-01), Weibull et al.
patent: 4393181 (1983-07-01), Allen
patent: 4692504 (1987-09-01), Frank
patent: 4704331 (1987-11-01), Robins et al.
patent: 4795791 (1989-01-01), Koenig et al.
patent: 5130198 (1992-07-01), Swisher et al.
patent: 5358982 (1994-10-01), Geisler et al.
patent: 5616634 (1997-04-01), Pfeil et al.

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