Ppg Industries, Inc.

Joseph E Plasynski

Joseph Theodore Valko

Roger M Christenson

Joseph F Bosso

Richard M Nugent, Jr

Roger L Scriven

Robert D Miller

An ungelled reaction product of a polyepoxide and an active hydrogen-containing material containing at least two active hydrogens per molecule is disclosed. The active hydrogen-containing material being a hydroxyalkyl-substituted urethane in which the hydroxy group is in the beta position to the urethane group. The reaction product is useful as a precursor in making cationic resins for use in cationic electrodeposition.

Epoxy resin advancement using urethane polyols and method for use thereof

Formaldehyde-containing cationic electrodepositable compositions to which are added a formaldehyde scavenger are disclosed. Also disclosed are the use of these compositions in a method of cationic electrodeposition. Free formaldehyde in cationic compositions can lower the pH of the compositions making them more corrosive to the metal parts such as ferrous metal tanks and attending piping and pumps in contact with such compositions. The presence of the formaldehyde scavenger in such compositions stabilizes the pH.

Cationic electrodepositable compositions containing formaldehyde

Cationic electrodeposition employing novel chain-extended cationic resinous products is disclosed. The products are formed by chain extending polyepoxides with polymercapto compounds and reacting with amines to provide cationic groups.

Cationic electrodeposition employing novel mercapto chain extended

Novel chain-extended cationic resinous products suitable for use in cationic electrodeposition are disclosed. The products are formed by chain extending polyepoxides with polymercapto compounds and reacting with amines to provide cationic groups.

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Arnold, PA, United States of America

Joseph E Plasynski