GB960286A - Composite pigment of high chalk resistance - Google Patents

Composite pigment of high chalk resistance

Info

Publication number
GB960286A
GB960286A GB700462A GB700462A GB960286A GB 960286 A GB960286 A GB 960286A GB 700462 A GB700462 A GB 700462A GB 700462 A GB700462 A GB 700462A GB 960286 A GB960286 A GB 960286A
Authority
GB
United Kingdom
Prior art keywords
titanium
zinc
sulphate
anhydrite
hydrate
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
GB700462A
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.)
NAT LEAD CO
NL Industries Inc
Original Assignee
NAT LEAD CO
NL Industries Inc
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 NAT LEAD CO, NL Industries Inc filed Critical NAT LEAD CO
Publication of GB960286A publication Critical patent/GB960286A/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
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
    • C09C1/0084—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound containing titanium dioxide
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Organic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

A paint comprises an alkyd resin and a titanium dioxide-calcium sulphate pigment prepared by mixing an aqueous slurry of anhydrite in which the average particle size of the anhydrite is 0.3m to 0.7m in diameter with an aqueous titanium salt (e.g. sulphate) solution, hydrolyzing to form a coprecipitated hydrate, adding to said hydrate a titanium sol and zinc or a zinc compound, and calcining. Calcium carbonate and antimony oxide may be added to the coprecipitated hydrate. The zinc compound may be an organo-zinc compound or zinc oxide, hydroxide, sulphate or halide. Specification 848,617 is referred to.ALSO:A process for preparing a titanium dioxidecalcium sulphate composite pigment having improved chalk resistance, comprises preparing an anhydrite aqueous slurry in which the average particle size of the anhydrite is 0.3 m to 0.7 m in diameter, admixing an aqueous titanium salt (e.g. sulphate) solution with said slurry and hydrolysing the titanium salt to form a coprecipitated titanium hydrate, adding to said hydrate a titanium sol and zinc or a zinc compound in amount of at least 1.0%, calculated as titanium dioxide, and 1.0 to 3.0% calculated as zinc oxide, respectively, and calcining e.g. 700 DEG to 1075 DEG C. Calcium carbonate and antimony oxide may be added with the zinc. The titanium sol may comprise articular crystals having a particle size of 50 to 1500 <\>rA in diameter. The zinc compound may be the oxide, hydroxide, sulphate or halide or an organo zinc compound. The anhydrite may be prepared by the reaction of lime, limestone or gypsum with sulphuric acid; and the titanium sol by heat treating an aqueous slurry of an alkali metal titanate or an hydrous titanium dioxide with a monobasic acid or, as in the examples, from titanium tetrachloride, sodium hydroxide with or without hydrochloric acid or sodium titanate and hydrochloric acid. The pigment may be mixed with an alkyd resin vehicle. Specification 848,617 is referred to.ALSO:Ceramic panels are coated with a paint comprising an alkyd resin and a composite titanium dioxide-calcium sulphate pigment (see Division C4). Specification 848,617 is referred to.
GB700462A 1961-03-09 1962-02-22 Composite pigment of high chalk resistance Expired GB960286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9441961A 1961-03-09 1961-03-09

Publications (1)

Publication Number Publication Date
GB960286A true GB960286A (en) 1964-06-10

Family

ID=22245082

Family Applications (1)

Application Number Title Priority Date Filing Date
GB700462A Expired GB960286A (en) 1961-03-09 1962-02-22 Composite pigment of high chalk resistance

Country Status (5)

Country Link
DE (1) DE1169607B (en)
ES (1) ES275276A1 (en)
FR (1) FR1320993A (en)
GB (1) GB960286A (en)
NL (1) NL275380A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102352133B (en) * 2011-06-17 2013-12-25 上海华力索菲科技有限公司 Surface coating method for ultrafine calamine particles and application of ultrafine calamine particles to synthetic fiber

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE373618A (en) * 1929-09-24
US2253551A (en) * 1938-06-22 1941-08-26 Du Pont Titanium pigment production
FR951681A (en) * 1942-01-07 1949-11-02 Titan Co Complex titanium dioxide pigments and method of manufacture
US2406465A (en) * 1942-01-09 1946-08-27 Du Pont Titanium oxide pigment production
US2956859A (en) * 1957-12-26 1960-10-18 Nat Lead Co Preparation of anhydrite

Also Published As

Publication number Publication date
DE1169607B (en) 1964-05-06
ES275276A1 (en) 1962-05-01
FR1320993A (en) 1963-03-15
NL275380A (en)

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