Patent · US Expired

Carrier resin for pigment pastes, preparation and use thereof

US5055542A · kind A · utility

6Cited by

11References

15Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Michael Honel · Mainz, DE
Peter Ziegler · Mainz, DE
Walter Sprenger · Dieburg, DE
Wolfgang Wendt · Wuppertal, DE

Key dates

Filing date	Jun 13, 1989
Grant date	Oct 8, 1991
Priority date	—
Expiry date	Jun 13, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09D17/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Carrier resin for pigment pastes, preparation and use thereof The invention relates to paste resins comprising (a) quaternary ammonium groups, (b) hydroxyl groups, (c) urethane radicals and (d) groups of the formula (I) ##STR1## in which R.sup.1 to R.sup.4 independently of one another represent hydrogen or a hydrocarbon radical of 1 to 10 carbon atoms and X denotes hydroxyl or a urethane radical, the average molecular weight (Mn) of these paste resins being 500 to 10,000. The invention further relates to the preparation of these paste resins, their use for pigment pastes as well as these pigment pastes. Water-thinnable paints, especially electrocoating paints which comprise the pigment pastes according to the invention, furnish, from a variety of substrates, surfaces free from defects and comparable film thicknesses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.