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Section:	Main.PIGMENT.Light Interference Pigments.Co.: CH. C.Patent.Claims Etc.Claim 1: Effect Pigment Prepn. Core.Metallic Material Reflectivity=40-.80% Dielectric Layer of Metal Oxide.a) Hydrolyzing Fe Compd Etc in.Aqueous Medium; pH=1-4 so that.Fe Etc Precipitated on Core as.Fe Oxides Etc.; b) Heat Core+.Precipitate to 100-900C to Convert.Hydroxides to Oxides & Remove.Water. Claims 5-7: Fe Compd.:.Ferric Chloride. Patent Assignee
Code:	64526
Product:	USA. C
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