Abstract: A cationic resin suitable for use as a pigment grinding vehicle is disclosed. The cationic resin is derived from an epoxy resin and contains ternary sulfonium groups and alkyl phenoxide groups. Pigment pastes derived from this cationic resin can be used in a method of cationic electrodeposition where they provide for films with high build and good appearance.

Abstract: A removable modular housing for providing and maintaining electromagnetic shielding, produceability and servicability of circuits producing and sensitive to RF energy.

Abstract: A quaternary ammonium group-containing material which is obtained from reacting a polyepoxide with an amine containing at least one acyclic group of about 8 to 30 carbon atoms and optionally an amine containing an alkylarylpoly ether moiety is disclosed. The resins are useful as pigment grinding vehicles and in the formulation of pigment paste, particularly pigment paste with high pigment loadings. When formulated into cationic electrodepositable compositions, the pigment grinding vehicles provide for cured electrodeposited coatings of excellent corrosion resistance, particularly over untreated and oily steel.

Abstract: A quaternary ammonium group-containing material and its method of preparation are disclosed. The quaternary ammonium group contains at least one organic group which contains an acyclic group of at least 8 carbon atoms and also contains a group of the structure ##STR1## wherein R.sub.1 is hydrogen or lower alkyl. The quaternary ammonium group-containing materials are useful as pigment grinding vehicles and in the formulation of pigment paste, particularly pigment paste with high pigment loadings. When formulated in cationic electrodepositable compositions, the pigment grinding vehicles provide for cured electrodeposited coatings of excellent corrosion resistance, particularly over untreated and oily steel.

Abstract: A novel quaternary ammonium group-containing material which is obtained from reacting a monoepoxide with an amine containing at least one organic group containing an acyclic moiety of from about 8 to 30 carbon atoms is disclosed. The quaternary ammonium group-containing materials are useful as pigment grinding vehicles and in the formulation of pigment paste, particularly pigment paste with high pigment loadings. When formulated in cationic electrodepositable compositions, the pigment grinding vehicles provide for cured electrodeposited coatings of excellent corrosion resistance, particularly over untreated and oily steel.