GB803454A - Improvements in or relating to the preparation of alumina-coated pigments and compositions containing them - Google Patents

Improvements in or relating to the preparation of alumina-coated pigments and compositions containing them

Info

Publication number
GB803454A
GB803454A GB37094/56A GB3709456A GB803454A GB 803454 A GB803454 A GB 803454A GB 37094/56 A GB37094/56 A GB 37094/56A GB 3709456 A GB3709456 A GB 3709456A GB 803454 A GB803454 A GB 803454A
Authority
GB
United Kingdom
Prior art keywords
aluminium
pigments
titanium dioxide
isopropoxide
alumina
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
GB37094/56A
Inventor
Oswin B Willcox
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB37094/56A priority Critical patent/GB803454A/en
Publication of GB803454A publication Critical patent/GB803454A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
    • C09C3/041—Grinding
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/06—Treatment with inorganic compounds
    • C09C3/063—Coating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

Alumina-coated pigments are produced by mixing a pigment with an aluminium alcoholate or with aluminium phenate, and subjecting the mixture to dry grinding in the presence of superheated steam or water vapour, the aluminium compound being thereby hydrolysed. The process may be applied to any heat-stable pulverulent material, e.g. titanium dioxide, calcium and barium base pigments containing titanium dioxide, zinc sulphide, zinc oxide, or lithopone. Suitable aluminium compounds include aluminium methoxide, ethoxide, propoxide, isopropoxide, butoxide, isobutoxide, and pentanoxide, also aluminium phenate. The compound may be dissolved in an inert organic solvent and added, e.g. by spraying, to the pigment. Examples describe the treatment of titanium dioxide pigments with aluminium isopropoxide solutions followed by mixing in a hammer mill and pulverizing in a high fluid energy disintegrator using superheated steam as the distintegrating agent; and comparisons of the products with pigments similarly treated but without the addition of aluminium isopropoxide, and with titanium dioxide pigments coated by a wet process. Specification 432,191, [Group II], is referred to.
GB37094/56A 1956-12-04 1956-12-04 Improvements in or relating to the preparation of alumina-coated pigments and compositions containing them Expired GB803454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB37094/56A GB803454A (en) 1956-12-04 1956-12-04 Improvements in or relating to the preparation of alumina-coated pigments and compositions containing them

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37094/56A GB803454A (en) 1956-12-04 1956-12-04 Improvements in or relating to the preparation of alumina-coated pigments and compositions containing them

Publications (1)

Publication Number Publication Date
GB803454A true GB803454A (en) 1958-10-22

Family

ID=10393668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37094/56A Expired GB803454A (en) 1956-12-04 1956-12-04 Improvements in or relating to the preparation of alumina-coated pigments and compositions containing them

Country Status (1)

Country Link
GB (1) GB803454A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132724A (en) * 1972-03-28 1979-01-02 Manchem Limited Preparation of organoaluminum compositions
EP0249710A2 (en) * 1986-06-20 1987-12-23 Mitsubishi Materials Corporation Process for preparing coated heat-resistant pigment
EP0254861A1 (en) * 1986-06-20 1988-02-03 Mitsubishi Materials Corporation Process for preparing coated cadmiun based pigments

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132724A (en) * 1972-03-28 1979-01-02 Manchem Limited Preparation of organoaluminum compositions
EP0249710A2 (en) * 1986-06-20 1987-12-23 Mitsubishi Materials Corporation Process for preparing coated heat-resistant pigment
EP0254861A1 (en) * 1986-06-20 1988-02-03 Mitsubishi Materials Corporation Process for preparing coated cadmiun based pigments
EP0249710A3 (en) * 1986-06-20 1988-05-04 Mitsubishi Kinzoku Kabushiki Kaisha Process for preparing coated heat-resistant pigment

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