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Corrosion-inhibiting paints and lacquers

Assignee: Bayer AG
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Filing: 1982-07-14
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Granted: 1985-01-08
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Expires: 2002-07-14
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Abstract

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; Me(III) 2 O 3 is at least one trivalent metal oxide; A is at least one inorganic acid anhydride; I is at least one organic corrosion inhibitor; aq is from 0.5 to 9 moles of water; and x, y and z are whole or fractional numbers and x has a value of from 0 to 1, y has a value of from 0 to 0.7 and 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.

Inventors

  • 👤 Horst Brunn
  • 👤 Franz Hund
  • 👤 Wolfgang Rambold
  • 👤 Peter Kresse
  • 👤 Gerd von Szadkowski

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 13:54
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/082; C09C; C09C1/00; C01; C01P; C01P2002/00; C01P2002/08; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; C01P2006/00; C01P2006/12

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 151 words
Corrosion-inhibiting paints and lacquers pigmented with a corrosion-inhibiting pigment having a specific surface according to BET of from 0.1 to 200 m 2 /g, a content of water-soluble components of less than 0.6%, and comprising an organic corrosion inhibitor intercalated into an inorganic matrix having the formula: ##EQU9## wherein Me(II)O is at least one divalent metal oxide; ME(III) 2 O 3 is at least one trivalent metal oxide; A is at least one inorganic acid anhydride; I is at least one organic corrosion inhibitor; aq is from 0.5 to 9 moles of water; and x, y and z are whole or fractional numbers and x has a value of from 0 to 1, y has a value of from 0 to 0.7 and 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.
Claim 2
Dependent Claim 151 words
Corrosion-inhibiting paints and lacquers pigmented with a corrosion-inhibiting pigment having a specific surface according to BET of from 0.1 to 200 m 2 /g, a content of water-soluble components of less than 0.6%, and comprising an organic corrosion inhibitor intercalated into an inorganic matrix having the formula: ##EQU9## wherein Me(II)O is at least one divalent metal oxide; ME(III) 2 O 3 is at least one trivalent metal oxide; A is at least one inorganic acid anhydride; I is at least one organic corrosion inhibitor; aq is from 0.5 to 9 moles of water; and x, y and z are whole or fractional numbers and x has a value of from 0 to 1, y has a value of from 0 to 0.7 and 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.

References Cited (Backward Citations)

US3137717A Cited
US3200136A Cited
US3391176A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-01-08 1988-07-09 1989-01-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-01-08 1992-07-09 1993-01-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-01-08 1996-07-09 1997-01-08 $7700.00 Window Closed / Lapsed

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