JP2008510875A - 超微細含水カオリン顔料、前記顔料の製造方法そして前記顔料を光沢塗料配合で用いる方法 - Google Patents
超微細含水カオリン顔料、前記顔料の製造方法そして前記顔料を光沢塗料配合で用いる方法 Download PDFInfo
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- JP2008510875A JP2008510875A JP2007529895A JP2007529895A JP2008510875A JP 2008510875 A JP2008510875 A JP 2008510875A JP 2007529895 A JP2007529895 A JP 2007529895A JP 2007529895 A JP2007529895 A JP 2007529895A JP 2008510875 A JP2008510875 A JP 2008510875A
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- kaolin
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 title claims abstract description 210
- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 204
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 204
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000000049 pigment Substances 0.000 title claims description 73
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 239000003973 paint Substances 0.000 title description 56
- 238000005188 flotation Methods 0.000 claims abstract description 47
- 239000002994 raw material Substances 0.000 claims abstract description 45
- 239000008199 coating composition Substances 0.000 claims abstract description 13
- 238000000746 purification Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 89
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 58
- 238000000576 coating method Methods 0.000 claims description 34
- 239000011248 coating agent Substances 0.000 claims description 33
- 238000005238 degreasing Methods 0.000 claims description 18
- 238000000703 high-speed centrifugation Methods 0.000 claims description 17
- 239000006260 foam Substances 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 abstract description 10
- 239000002270 dispersing agent Substances 0.000 description 29
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 26
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 23
- 239000000203 mixture Substances 0.000 description 23
- 239000000047 product Substances 0.000 description 20
- 239000004606 Fillers/Extenders Substances 0.000 description 17
- 239000002002 slurry Substances 0.000 description 16
- 230000002776 aggregation Effects 0.000 description 15
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- 235000019198 oils Nutrition 0.000 description 15
- 238000009826 distribution Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000005054 agglomeration Methods 0.000 description 12
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- 229910052500 inorganic mineral Inorganic materials 0.000 description 10
- 239000011707 mineral Substances 0.000 description 10
- 235000010755 mineral Nutrition 0.000 description 10
- 239000004801 Chlorinated PVC Substances 0.000 description 9
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- 229920000180 alkyd Polymers 0.000 description 8
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- 238000004061 bleaching Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 238000010298 pulverizing process Methods 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 239000004927 clay Substances 0.000 description 6
- 238000000227 grinding Methods 0.000 description 6
- 238000006385 ozonation reaction Methods 0.000 description 6
- 229910010413 TiO 2 Inorganic materials 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 238000001694 spray drying Methods 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000002320 enamel (paints) Substances 0.000 description 4
- 238000003801 milling Methods 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- 239000002516 radical scavenger Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
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- 239000003513 alkali Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052622 kaolinite Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 241000894007 species Species 0.000 description 3
- 238000001238 wet grinding Methods 0.000 description 3
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000004455 differential thermal analysis Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 other clays Chemical compound 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 244000035744 Hura crepitans Species 0.000 description 1
- FOQXTRLJMXMESG-UHFFFAOYSA-N OS(=O)S(O)=O.OS(=O)S(O)=O Chemical compound OS(=O)S(O)=O.OS(=O)S(O)=O FOQXTRLJMXMESG-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium peroxydisulfate Substances [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- VAZSKTXWXKYQJF-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)OOS([O-])=O VAZSKTXWXKYQJF-UHFFFAOYSA-N 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 229910001649 dickite Inorganic materials 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 238000007922 dissolution test Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 229920006334 epoxy coating Polymers 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000006115 industrial coating Substances 0.000 description 1
- 239000010423 industrial mineral Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000009896 oxidative bleaching Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007560 sedimentation technique Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/51—Particles with a specific particle size distribution
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- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
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- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- 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
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- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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- C01P2006/22—Rheological behaviour as dispersion, e.g. viscosity, sedimentation stability
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- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
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- C01P2006/62—L* (lightness axis)
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- 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
- C01P2006/63—Optical properties, e.g. expressed in CIELAB-values a* (red-green axis)
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
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- C01P2006/64—Optical properties, e.g. expressed in CIELAB-values b* (yellow-blue axis)
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- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
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- Physics & Mathematics (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Paper (AREA)
- Paints Or Removers (AREA)
Abstract
Description
PVC%=100xVpigment/Vtotal
[式中、Vpigmentは、乾燥した塗膜に入っている顔料と他の非揮発物の体積であり、そしてVtotalは、Vpigment+塗料用媒体/樹脂の体積である]。臨界顔料体積濃度(本明細書では以降CPVC)は顔料を基準にした結合剤の量が充分でないことが理由で乾燥した塗膜の中に空気界面が生じる時のPVCであるとして定義する。数多くの塗料の体積特性はCPVCの所で劇的に変化することが良く知られている。PVCとCPVCの間の関係は典型的に非線形である。多くの場合、いろいろな塗料の比較は等しい低顔料体積濃度(equal reduced pigment volume concentration)(本明細書では以降RPVC)を基にして適切に行われる。RPVCを下記の式で定義する:
RPVC=PVC/CPVC
光沢等級の塗料が示すRPVCは屋外用または屋内用のいずれも一般に約1未満である。
Claims (10)
- カオリンを処理する方法であって、逐次的に、
グレーカオリンを超主要量で含有するカオリン原料に浮選を受けさせることでチタニア含有量が低下したカオリンを生じさせ、
前記チタニア含有量が低下したカオリンを高速の遠心分離にかけることで、少なくとも約70重量%が2ミクロン以下の大きさを有するカオリンを含有する粗流れと、少なくとも約80重量%が1ミクロン以下の大きさを有するカオリンを含有する微細流れを生じさせ、そして
前記微細流れに精製を受けさせることで超微細なカオリン顔料を生じさせる、
ことを含んで成る方法。 - 高速の遠心分離が約1,000から約10,000の「g」力を用いることを伴う請求項1記載の方法。
- 前記カオリン原料がグレーカオリンを少なくとも約75重量%含有して成る請求項1記載の方法。
- 浮選によって前記カオリンのチタニア含有量を約1重量%未満にまで低下させる請求項1記載の方法。
- 浮選が泡沫浮選、限外浮選およびTREP浮選の中の1つを含んで成る請求項1記載の方法。
- 更に、前記カオリン原料に浮選を受けさせる前に前記カオリン原料にデグリッテイングを受けさせておくことも含んで成る請求項1記載の方法。
- 超微細含水カオリンであって、粒子の少なくとも約97重量%が2ミクロン以下の大きさを有し、粒子の少なくとも約96重量%が1ミクロン以下の大きさを有し、粒子の少なくとも約89重量%が0.5ミクロン以下の大きさを有し、粒子の少なくとも約67%が0.3ミクロン以下の大きさを有し、粒子の表面積が少なくとも約23m2/gでありかつ粒子の輝度が少なくとも約91である粒子を含有して成る超微細含水カオリン。
- 粒子の少なくとも約98重量%が2ミクロン以下の大きさを有し、粒子の少なくとも約97重量%が1ミクロン以下の大きさを有し、粒子の少なくとも約90重量%が0.5ミクロン以下の大きさを有し、粒子の少なくとも約70%が0.3ミクロン以下の大きさを有しかつ粒子の表面積が少なくとも約25m2/gである請求項7記載の超微細含水カオリン。
- 粒子の輝度が約92より高い請求項7記載の超微細含水カオリン。
- 塗料組成物であって、
塗料用媒体を主要量で含有し、そして
請求項7記載の超微細含水カオリンを主要ではない量で含有、
して成る塗料組成物。
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PCT/US2005/027845 WO2006026066A2 (en) | 2004-08-26 | 2005-08-05 | Ultrafine hydrous kaolin pigments, methods of making the pigments, and methods of using the pigments in gloss paint formulations |
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WO2006026066B1 (en) | 2006-11-02 |
KR20070051343A (ko) | 2007-05-17 |
CN101048468A (zh) | 2007-10-03 |
JP5279271B2 (ja) | 2013-09-04 |
AU2005280483A1 (en) | 2006-03-09 |
WO2006026066A2 (en) | 2006-03-09 |
BRPI0514668A (pt) | 2008-06-17 |
KR101247866B1 (ko) | 2013-03-26 |
BRPI0514668B1 (pt) | 2019-07-09 |
US20060047047A1 (en) | 2006-03-02 |
US8557037B2 (en) | 2013-10-15 |
EP1791914A2 (en) | 2007-06-06 |
EP1791914B1 (en) | 2013-10-16 |
WO2006026066A3 (en) | 2006-07-27 |
US20090025612A1 (en) | 2009-01-29 |
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