Back to results
US 4,007,154 AGranted
Novel pigment paste for cationic electrodeposition
AssigneePPG Industries, Inc.
InventorsKarl F. Schimmel, Percy E. Pierce, James E. Jones
Life of this patent
Estimating the term…
Abstract
A pigment paste suitable for use in cationic electrodeposition is disclosed. The paste contains pigment dispersed in a resinous vehicle which is the reaction product of an epoxy-containing organic material and an organic tertiary amine acid salt containing blocked isocyanate groups capable of unblocking at elevated temperature.
Claims5
A pigment paste suitable for cationic electrodeposition comprising:
- A. a resinous vehicle comprising the acidified reaction product of:
- 1. an organic polyepoxide material
- 2. an organic tertiary amine containing blocked isocyanate groups capable of unblocking at elevated temperature;
- B. a pigment dispersed therein;
- the pigment to resinous vehicle weight ratio being at least 2:1.
2 more elements
Dependencies are inferred from the claim text.