GB744559A - Improvements in or relating to a method for treating calcium sulphate pigments - Google Patents

Improvements in or relating to a method for treating calcium sulphate pigments

Info

Publication number
GB744559A
GB744559A GB26640/53A GB2664053A GB744559A GB 744559 A GB744559 A GB 744559A GB 26640/53 A GB26640/53 A GB 26640/53A GB 2664053 A GB2664053 A GB 2664053A GB 744559 A GB744559 A GB 744559A
Authority
GB
United Kingdom
Prior art keywords
calcium sulphate
amine
amines
relating
pigments
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
GB26640/53A
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 GB744559A publication Critical patent/GB744559A/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
    • C09C1/02—Compounds of alkaline earth metals or magnesium
    • C09C1/025—Calcium sulfates
    • 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

Landscapes

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

Abstract

Pigmentary calcium sulphate, and pigments containing calcium sulphate and another pigment such as titanium dioxide, are improved by the admixture of 0.1-0.5 per cent of a straight chain primary amine containing at least 8 carbon atoms. Saturated amines such as octyl, decyl, dodecyl, tetradecyl, hexadecyl, and octadecyl amine, unsaturated amines such as hexadecenyl, octadecenyl, octadecadienyl, and octadecatrienyl amine, and mixtures of amines, may be used. The amine may be added as a solution, e.g. in ethyl alcohol.
GB26640/53A 1952-10-03 1953-09-28 Improvements in or relating to a method for treating calcium sulphate pigments Expired GB744559A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US744559XA 1952-10-03 1952-10-03

Publications (1)

Publication Number Publication Date
GB744559A true GB744559A (en) 1956-02-08

Family

ID=22119653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26640/53A Expired GB744559A (en) 1952-10-03 1953-09-28 Improvements in or relating to a method for treating calcium sulphate pigments

Country Status (1)

Country Link
GB (1) GB744559A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310360A (en) 1978-10-30 1982-01-12 Supra Aktiebolag Method for producing pigment for use in sizing compositions
CN106590065A (en) * 2017-01-17 2017-04-26 荆门市磊鑫石膏制品有限公司 Preparation method for composite titanium dioxide powder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4310360A (en) 1978-10-30 1982-01-12 Supra Aktiebolag Method for producing pigment for use in sizing compositions
CN106590065A (en) * 2017-01-17 2017-04-26 荆门市磊鑫石膏制品有限公司 Preparation method for composite titanium dioxide powder

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