Corrosion-inhibiting paints and lacquers

US4492600A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Horst Brunn · Meerbusch, DE
• Franz Hund · Krefeld, DE
• Wolfgang Rambold · Krefeld, DE
• Peter Kresse · Krefeld, DE
• Gerd von Szadkowski · Krefeld, DE

Key dates

• Filing date: Jul 14, 1982
• Grant date: Jan 8, 1985
• Expiry date: Jul 14, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

This invention relates to corrosion-inhibiting paints and lacquers containing pigments comprising an organic corrosion inhibitor intercalated into an inorganic matrix said pigment having the formula wherein ##EQU1## wherein Me(II)O is at least one divalent metal oxide; PA1 Me(III).sub.2 O.sub.3 is at least one trivalent metal oxide; PA1 A is at least one inorganic acid anhydride; PA1 I is at least one organic corrosion inhibitor; PA1 aq is from 0.5 to 9 moles of water; and PA1 x, y and z are whole or fractional numbers and PA1 x has a value of from 0 to 1, PA1 y has a value of from 0 to 0.7 and PA1 z has a value of from greater than 0 to 0.4, with the proviso that the organic corrosion inhibitor is at least 0.5% by weight of inorganic material a process for the production of these pigments and their use in paints, lacquers and lubricants.