CA2368747A1 - Kaolin pigments, their preparation and use - Google Patents

Kaolin pigments, their preparation and use Download PDF

Info

Publication number
CA2368747A1
CA2368747A1 CA002368747A CA2368747A CA2368747A1 CA 2368747 A1 CA2368747 A1 CA 2368747A1 CA 002368747 A CA002368747 A CA 002368747A CA 2368747 A CA2368747 A CA 2368747A CA 2368747 A1 CA2368747 A1 CA 2368747A1
Authority
CA
Canada
Prior art keywords
less
particles
weight
clay
platy
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.)
Granted
Application number
CA002368747A
Other languages
French (fr)
Other versions
CA2368747C (en
Inventor
Christopher R. L. Golley
Daniel John Panfil
Harry Vincent Brown Jr.
John Claude Husband
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.)
Imerys Pigments Inc
Original Assignee
Imerys Pigments, Inc.
Christopher R. L. Golley
Daniel John Panfil
Harry Vincent Brown Jr.
John Claude Husband
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 Imerys Pigments, Inc., Christopher R. L. Golley, Daniel John Panfil, Harry Vincent Brown Jr., John Claude Husband filed Critical Imerys Pigments, Inc.
Publication of CA2368747A1 publication Critical patent/CA2368747A1/en
Application granted granted Critical
Publication of CA2368747C publication Critical patent/CA2368747C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C09C1/40—Compounds of aluminium
    • C09C1/42—Clays
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/54—Particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • 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
    • C01P2006/12—Surface area
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
    • D21H21/52—Additives of definite length or shape

Abstract

A pigment product suitable for use in a coating composition to provide a glo ss coating on paper, the pigment product comprising a processed particulate kaolin produced from a naturally platy kaolin clay having a particle size distribution such that about 50 % to 60 % by weight of the particles have an esd less than 2 .mu.m and less than 25 % by weight of the particles have an esd less than 0.25 .mu.m and a shape factor of at least 15. This platy clay can be blended with b-fraction clay component. In processing, the crude kaol in is ground to a shape factor greater than 50 to produce even greater "platy" clay. The pigment product has a particle size distribution such that at leas t 80 % by weight of the particles have an esd less than 2 .mu.m and greater th an 12 % and less than 35 % by weight of the particles have an esd less than 0.2 5 .mu.m and whose surface area is greater than 12 m2/g when measured by the BE T method.
CA002368747A 1999-04-01 2000-03-31 Kaolin pigments, their preparation and use Expired - Fee Related CA2368747C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12738099P 1999-04-01 1999-04-01
US60/127,380 1999-04-01
PCT/US2000/008466 WO2000059840A1 (en) 1999-04-01 2000-03-31 Kaolin pigments, their preparation and use

Publications (2)

Publication Number Publication Date
CA2368747A1 true CA2368747A1 (en) 2000-10-12
CA2368747C CA2368747C (en) 2008-02-12

Family

ID=22429805

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002368747A Expired - Fee Related CA2368747C (en) 1999-04-01 2000-03-31 Kaolin pigments, their preparation and use

Country Status (6)

Country Link
US (2) US6537363B1 (en)
AU (1) AU759343B2 (en)
BR (1) BR0009458A (en)
CA (1) CA2368747C (en)
DE (1) DE10084442T1 (en)
WO (1) WO2000059840A1 (en)

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Also Published As

Publication number Publication date
AU759343B2 (en) 2003-04-10
WO2000059840A1 (en) 2000-10-12
US6537363B1 (en) 2003-03-25
BR0009458A (en) 2002-01-08
US20030094120A1 (en) 2003-05-22
US6610137B2 (en) 2003-08-26
DE10084442T1 (en) 2002-05-02
CA2368747C (en) 2008-02-12
AU4051400A (en) 2000-10-23

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