JP6117223B2 - 分散性の改善された処理済み無機コア粒子 - Google Patents
分散性の改善された処理済み無機コア粒子 Download PDFInfo
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- JP6117223B2 JP6117223B2 JP2014538825A JP2014538825A JP6117223B2 JP 6117223 B2 JP6117223 B2 JP 6117223B2 JP 2014538825 A JP2014538825 A JP 2014538825A JP 2014538825 A JP2014538825 A JP 2014538825A JP 6117223 B2 JP6117223 B2 JP 6117223B2
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- 239000007771 core particle Substances 0.000 title claims description 48
- 239000002245 particle Substances 0.000 claims description 59
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 58
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 57
- 239000002002 slurry Substances 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 32
- 239000000377 silicon dioxide Substances 0.000 claims description 29
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 23
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 21
- 239000004408 titanium dioxide Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- -1 alkali metal salt Chemical class 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical group [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 3
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000005083 Zinc sulfide Substances 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000008199 coating composition Substances 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 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 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 229910052863 mullite Inorganic materials 0.000 claims description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052984 zinc sulfide Inorganic materials 0.000 claims description 2
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims 1
- 229910000431 copper oxide Inorganic materials 0.000 claims 1
- KVOIJEARBNBHHP-UHFFFAOYSA-N potassium;oxido(oxo)alumane Chemical compound [K+].[O-][Al]=O KVOIJEARBNBHHP-UHFFFAOYSA-N 0.000 claims 1
- UBXAKNTVXQMEAG-UHFFFAOYSA-L strontium sulfate Inorganic materials [Sr+2].[O-]S([O-])(=O)=O UBXAKNTVXQMEAG-UHFFFAOYSA-L 0.000 claims 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims 1
- 239000000049 pigment Substances 0.000 description 25
- 239000003973 paint Substances 0.000 description 24
- 238000011282 treatment Methods 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 238000005660 chlorination reaction Methods 0.000 description 5
- 230000008021 deposition Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 4
- 150000004645 aluminates Chemical class 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 239000002105 nanoparticle Substances 0.000 description 4
- 239000005049 silicon tetrachloride Substances 0.000 description 4
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 229910003455 mixed metal oxide Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- RYCLIXPGLDDLTM-UHFFFAOYSA-J tetrapotassium;phosphonato phosphate Chemical compound [K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])([O-])=O RYCLIXPGLDDLTM-UHFFFAOYSA-J 0.000 description 3
- 239000012463 white pigment Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000001046 green dye Substances 0.000 description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 239000011101 paper laminate Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000011276 addition treatment Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009837 dry grinding Methods 0.000 description 1
- 238000002296 dynamic light scattering Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 150000002611 lead compounds Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000006194 liquid suspension Substances 0.000 description 1
- 150000002731 mercury compounds Chemical class 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005596 polymer binder Polymers 0.000 description 1
- 239000002491 polymer binding agent Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/025—Applications of microcapsules not provided for in other subclasses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/20—After-treatment of capsule walls, e.g. hardening
- B01J13/22—Coating
-
- 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
-
- 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
- C09C1/027—Barium sulfates
-
- 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
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
- C09C1/3653—Treatment with inorganic compounds
- C09C1/3661—Coating
-
- 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
-
- 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
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- 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
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
- C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
- C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nanotechnology (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Paints Or Removers (AREA)
- Paper (AREA)
Description
(a)多孔質シリカ処理済み無機コア粒子および水を含むスラリーを、少なくとも約90℃、より典型的には、約93〜約97℃、さらに典型的には、約95〜約97℃の温度で加熱するステップと、
(b)pHを約8.0〜9.5に維持しながら、可溶性アルミナ源を、工程(a)からのスラリーに添加して、多孔質シリカ処理済み無機コア粒子上にアルミナ処理物を形成するステップと、を含み、処理済み無機コア粒子は、高密度のシリカまたはアルミナの処理物を含まず、少なくとも約7%〜約14%の量で存在するシリカおよび約4.0%〜約8.0%の量で存在するアルミナを有し、表面処理物が粒子−粒子間で実質的に均質である、分散性の改善された処理済み無機コア粒子、特に処理済み二酸化チタン(TiO2)を製造する方法を提供する。
(a1)無機コア粒子の水中スラリーを提供するステップと、
(a2)スラリーを、約30〜約40℃、より典型的には、33〜37℃まで加熱し、pHを約3.5〜約7.5に調整するステップと、
(a3)pHを約3.5〜約7.5に維持しながら、可溶性ケイ酸塩溶液をスラリーに添加するステップと、
(a4)少なくとも約5分間攪拌するステップと
を含むプロセスにより調製する方法を提供する。
任意の無機コア粒子、特に、二酸化チタン粒子は、本開示に従って処理されるものとする。無機コア粒子とは、ポリマーメルト、コーティングまたはラミネート組成物等の最終生成物全体に分散されて、色や不透明性を付与するものを意味する。無機コア粒子は、チタン、アルミニウム、亜鉛、銅、鉄の酸化物;カルシウム、ストロンチウム、バリウムの硫酸塩;硫化亜鉛;硫化銅、ゼオライト;マイカ;タルク;カオリン、ムライト、炭酸カルシウムまたはシリカであってよい。鉛または水銀化合物も等価のコア材料と考えられるが、毒性のため望ましくはない。より典型的なコア材料は、二酸化チタンTiO2および硫酸バリウム、最も典型的には、二酸化チタンTiO2である。
分散性の改善された処理済み無機コア粒子、特に処理済み二酸化チタン(TiO2)粒子の製造プロセスには、多孔質シリカ処理済み無機コア粒子と水を含むスラリーを、少なくとも約90℃、より典型的には、約93〜約97℃、さらに典型的には、約95〜約97℃の温度で加熱することが含まれる。シリカは、発熱性シリカの発熱無機コア粒子、特に、発熱性二酸化チタン(TiO2)粒子への堆積により、四塩化ケイ素の四塩化チタンとの共酸素化により、または凝縮相水性酸化物の堆積により適用される。
処理済み無機コア粒子、典型的には、無機金属酸化物または混合金属酸化物粒子、より典型的には、二酸化チタンは、塗料等のコーティング組成物、成形物品またはフィルム等のプラスチック部品、または紙ラミネートに用いてよい。本開示の紙ラミネートは、フローリング、家具、カウンタートップ、人工木材表面や人造石表面に有用である。
2000gのTiO2酸化塩基を、4520mlの脱イオン水中でスラリー化して、400gTiO2/リットル(30.7wt%TiO2)の濃度とした。このスラリーを35℃まで加熱し、pHを5.5に調整した。ケイ酸ナトリウム溶液(1210グラム)に、十分なHClを添加して、pHを4〜6に維持した。5分間の硬化後(混合しながら)、スラリーを55℃まで加熱した。695グラムのアルミン酸ナトリウムに、十分なHClを添加して、pHを6に維持した。pHおよび温度を維持しながら、スラリーをさらに30分間攪拌してから、濾過、洗浄、乾燥および蒸気微粉化した。得られた試料のパーセントSiO2値は14%、パーセントアルミナ値は7.6%である。
下記以外は、実施例1に記載した手順を用いた。
・シリカ硬化5分後、スラリーを95℃まで加熱した。
・アルミン酸塩添加中および後、スラリーpHを9.0に、温度を95℃に維持した。
スラリー作製のし易さ:ラテックス塗料製造において、概して、他の塗料成分を含有するスラリーに混合その他組み込むことのできるTiO2顔料の高固体水スラリーを調製するのが望ましい。典型的に、このTiO2顔料スラリーは、サブミクロン粒子を分散するよう特別に設計された機器(例えば、Hockmeyer分散機、KatyミルまたはDispermat分散機)により、別個の分散工程で作製される。試料評価については、各顔料例のスラリーを、以下の量の成分により、Hockmeyer分散機で作製した。
・3000gのTiO2顔料
・1953gの水
・0.9gのTKPP(トリポリリン酸カリウム)分散剤
・0.5gのProxel(登録商標)(殺生物剤)
K/S=[(1−Y)2]/[2*Y]
により、三刺激Y値を用いて、各ドローダウン領域について計算する。着色力値は、当該の顔料で作製した塗料についてのK/S値で除算した標準塗料のK/S値の比率として記録され、パーセンテージで記録される。塗料が乾燥する際の顔料分散安定性の尺度である剪断強度均一性を、ドローダウンのそのままにしてある領域のK/S値と、ブラッシュアウト領域のK/S値を比べることにより求めた。
Claims (8)
- (a)シリカ処理済み無機コア粒子および水を含むスラリーを形成する工程と、
(b)前記シリカ処理済み無機コア粒子および水を含むスラリーを、少なくとも90℃の温度で加熱する工程と、
(c)pHを8.0〜9.5に維持しながら、可溶性アルミナ源を、前記工程(b)からの前記スラリーに添加して、前記シリカ処理済み無機コア粒子上にアルミナ処理物を形成する工程と、を含む、コーティング組成物の製造方法であって、
前記工程(a)が、
(a1)無機コア粒子の水中スラリーを提供するステップと、
(a2)前記(a1)からの水中スラリーを、30〜40℃まで加熱し、pHを3.5〜7.5に調整するステップと、
(a3)前記pHを3.5〜7.5に維持しながら、可溶性ケイ酸塩溶液を前記(a2)からの水中スラリーに添加するステップと、
(a4)前記(a3)からの水中スラリーを少なくとも5分間攪拌するステップと、を含み、
前記工程(c)からの処理済み無機コア粒子は、前記無機コア粒子の全重量を基準として、少なくとも7重量%〜14重量%の量で存在するシリカおよび4.0重量%〜8.0重量%の量で存在するアルミナを有し、
表面処理物が粒子−粒子間で実質的に均質である、製造方法。 - 前記無機コア粒子が、チタン、アルミニウム、亜鉛、銅または鉄の酸化物、カルシウム、ストロンチウムもしくはバリウムの硫酸塩、硫化亜鉛、硫化銅、ゼオライト、マイカ、タルク、カオリン、ムライト、炭酸カルシウムまたはシリカである請求項1に記載の方法。
- 前記無機コア粒子が、二酸化チタン、TiO2または硫酸バリウムである請求項2に記載の方法。
- 前記無機コア粒子が、二酸化チタン、TiO2である請求項3に記載の方法。
- 工程(b)の前記スラリーが、93〜97℃の温度まで加熱される請求項1に記載の方法。
- 工程(b)の前記スラリーが、95〜97℃の温度まで加熱される請求項5に記載の方法。
- 前記可溶性アルミナ源が、アルミン酸塩アニオンのアルカリ金属塩である請求項1に記載の方法。
- 前記可溶性アルミナ源が、アルミン酸ナトリウムまたはアルミン酸カリウムである請求項7に記載の方法。
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