ES2002206A6 - Nacreous pigment based on mica flakes coated with metal oxide - Google Patents

Nacreous pigment based on mica flakes coated with metal oxide

Info

Publication number
ES2002206A6
ES2002206A6 ES8602520A ES8602520A ES2002206A6 ES 2002206 A6 ES2002206 A6 ES 2002206A6 ES 8602520 A ES8602520 A ES 8602520A ES 8602520 A ES8602520 A ES 8602520A ES 2002206 A6 ES2002206 A6 ES 2002206A6
Authority
ES
Spain
Prior art keywords
mica flakes
metal oxide
flakes coated
coated
pigment based
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES8602520A
Other languages
Spanish (es)
Inventor
Axel Rau
Ambrosius
Klaus Dieter Franz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Merck Patent GmbH
Original Assignee
Merck Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Merck Patent GmbH filed Critical Merck Patent GmbH
Priority to ES8602520A priority Critical patent/ES2002206A6/en
Publication of ES2002206A6 publication Critical patent/ES2002206A6/en
Expired legal-status Critical Current

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  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

Nacreous pigments (I) are based on mica flakes coated with metal oxides, esp. TiO2. The novelty is that (I) have a top coat of SnO2 and/or CeO2 to increase the stability in glazes and enamels. - Pref. the top coat comprises ca. 5-30 wt..% of the total (I). Prodn. involves treating an aq. suspension of (un)calcined mica flakes coated with metal oxide(s) (esp. rutile TiO2) at least once, with a soln. of a Sn and/or Ce salt, keeping the pH constant (pref. at 1-7) by simultaneous addn. of a base, so that the salt is hydrolysed. The (I) coated with SnO2 and/or CeOs is sepd., washed and dried if necessary and then calcined.
ES8602520A 1986-10-09 1986-10-09 Nacreous pigment based on mica flakes coated with metal oxide Expired ES2002206A6 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES8602520A ES2002206A6 (en) 1986-10-09 1986-10-09 Nacreous pigment based on mica flakes coated with metal oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES8602520A ES2002206A6 (en) 1986-10-09 1986-10-09 Nacreous pigment based on mica flakes coated with metal oxide

Publications (1)

Publication Number Publication Date
ES2002206A6 true ES2002206A6 (en) 1988-07-16

Family

ID=8248560

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8602520A Expired ES2002206A6 (en) 1986-10-09 1986-10-09 Nacreous pigment based on mica flakes coated with metal oxide

Country Status (1)

Country Link
ES (1) ES2002206A6 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2265263A1 (en) * 2005-01-31 2007-02-01 Sociedad Anonima Minera Catalano-Aragonesa Base composition for industrial colored reflecting products consists of pigments precursors in a mix for thermal synthesis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2265263A1 (en) * 2005-01-31 2007-02-01 Sociedad Anonima Minera Catalano-Aragonesa Base composition for industrial colored reflecting products consists of pigments precursors in a mix for thermal synthesis

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2006-10-09

FD1A Patent lapsed

Effective date: 20001102