54.
    发明专利
    未知

    公开(公告)号:DE59006927D1

    公开(公告)日:1994-10-06

    申请号:DE59006927

    申请日:1990-01-25

    Applicant: BASF AG

    Abstract: Glossy pigments consist of a carrier on a coloured organic lamellar colour pigment having film-like coatings of metal oxides applied thereto. The coatings are reacted in the gas phase by reaction of the corresponding metal compounds with a reaction component which reacts with these compounds to give metal oxides. The glossy pigments having high colouring power are used for colouring paints, plastics, cosmetics and printing inks.

    55.
    发明专利
    未知

    公开(公告)号:DE58904063D1

    公开(公告)日:1993-05-19

    申请号:DE58904063

    申请日:1989-08-31

    Applicant: BASF AG

    Abstract: The novel carriers consist of steel cores which have an iron oxide- containing coating of the formula (FeO)x . Fe2O3 where x = 0.1 - 1. The carriers are stable and effective over long cycle times (6 .10 prints). … The carriers are obtained by treating steel cores (steel spheres) with defined small amounts of sulphuric acid of defined concentration, partial oxidation of the treated cores and drying at 60-150 DEG C at

    Bismuth vanadate or mixed pigment coated with hardly soluble iron cpd. - to minimise photochromic effect, prodn. and use in paint, printing ink or plastics

    公开(公告)号:DE3926870A1

    公开(公告)日:1991-02-21

    申请号:DE3926870

    申请日:1989-08-16

    Applicant: BASF AG

    Abstract: Bi vanadate pigments or pigments contg. Bi vanadate are coated with hardly soluble inorganic Fe cpds. (I). Pref. (I) are used in amts. of 0.001-2.0, pref. 0.05-0.5 wt.% w.r.t. the pigment. The pigments are produced by sepg. them from a suspension in an aq. Fe salt soln. and drying. The Fe salt is Fe2(SO4)3, Fe(NO3)3 or FeCl3. USE/ADVANTAGE - For pigmenting paints, printing inks and plastics. The (I) coating greatly reduced the photochromic effect. In an example, a suspension of 80 g pigment with the compsn. BiVO4.0.75 Bi2MoO6 and 120 g water was ball milled for 60 min. at 1200 rpm (A) without additive or with addn. of (B) 11.4 g Fe(NO3)3.9H2O or 6.8 g Fe2(SO4)3 in dissolved form. The suspension was filtered, washed and dried, giving a pigment contg. (A) 0.003, (B) 0.05, (C) 0.02 wt.% Fe. Paint contg. 20 g pigment in 80 g alkyl-melamine resin was sprayed onto sheet metal and half the sheet was exposed to a 1000 W lamp, 50 cm away, for 1 h. The difference in colour between the exposed and unexposed areas was (A) 2.2, (B) 1.1, (C) 0.7 immediately after exposure and (A) 1.0, (B) 0.2, (C) 0.1, 24 h after exposure.

    58.
    发明专利
    未知

    公开(公告)号:DE3861109D1

    公开(公告)日:1991-01-03

    申请号:DE3861109

    申请日:1988-05-26

    Applicant: BASF AG

    Abstract: A plateletlike two-phase pigment which has a core with a hematite structure of the composition AlxFe2-xO3 where x is from 0.02 to 0.5, and an outer layer with a spinal structure of the composition AlyFe3-yO4+z where y is from 0.03 to 0.75 and z is from 0 to 0.5, can be prepared by a hydrothermal treatment of plateletlike AlxFe2-xO3 pigments (x from 0.02 to 0.5) in the presence of a reducing agent dissolved in the aqueous phase.

    59.
    发明专利
    未知

    公开(公告)号:DE3903023A1

    公开(公告)日:1990-08-09

    申请号:DE3903023

    申请日:1989-02-02

    Applicant: BASF AG

    Abstract: Glossy pigments consist of a carrier on a coloured organic lamellar colour pigment having film-like coatings of metal oxides applied thereto. The coatings are reacted in the gas phase by reaction of the corresponding metal compounds with a reaction component which reacts with these compounds to give metal oxides. The glossy pigments having high colouring power are used for colouring paints, plastics, cosmetics and printing inks.

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