GB825404A - Method for coating titanium dioxide pigment - Google Patents
Method for coating titanium dioxide pigmentInfo
- Publication number
- GB825404A GB825404A GB13766/57A GB1376657A GB825404A GB 825404 A GB825404 A GB 825404A GB 13766/57 A GB13766/57 A GB 13766/57A GB 1376657 A GB1376657 A GB 1376657A GB 825404 A GB825404 A GB 825404A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vapour
- titanium dioxide
- monomer
- coating
- organosilicon
- 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
Links
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title abstract 16
- 238000000576 coating method Methods 0.000 title abstract 9
- 239000011248 coating agent Substances 0.000 title abstract 8
- 239000004408 titanium dioxide Substances 0.000 title abstract 8
- 239000000049 pigment Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title 1
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 abstract 6
- 239000000178 monomer Substances 0.000 abstract 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 4
- 125000000217 alkyl group Chemical group 0.000 abstract 4
- 238000009835 boiling Methods 0.000 abstract 4
- 150000001875 compounds Chemical class 0.000 abstract 4
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 abstract 4
- 229910052739 hydrogen Chemical group 0.000 abstract 4
- 239000001257 hydrogen Chemical group 0.000 abstract 4
- 150000003961 organosilicon compounds Chemical class 0.000 abstract 4
- 238000006116 polymerization reaction Methods 0.000 abstract 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 230000008021 deposition Effects 0.000 abstract 2
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 abstract 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 abstract 2
- RSIHJDGMBDPTIM-UHFFFAOYSA-N ethoxy(trimethyl)silane Chemical compound CCO[Si](C)(C)C RSIHJDGMBDPTIM-UHFFFAOYSA-N 0.000 abstract 2
- CZZBVPSIWUGVPZ-UHFFFAOYSA-N ethyl(tripentoxy)silane Chemical compound CCCCCO[Si](CC)(OCCCCC)OCCCCC CZZBVPSIWUGVPZ-UHFFFAOYSA-N 0.000 abstract 2
- 150000002431 hydrogen Chemical group 0.000 abstract 2
- 230000002209 hydrophobic effect Effects 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052752 metalloid Inorganic materials 0.000 abstract 2
- 150000002738 metalloids Chemical class 0.000 abstract 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 2
- 238000003801 milling Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- 125000005375 organosiloxane group Chemical group 0.000 abstract 2
- 150000004819 silanols Chemical class 0.000 abstract 2
- 239000010703 silicon Substances 0.000 abstract 2
- 229910052710 silicon Inorganic materials 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- 239000010936 titanium Substances 0.000 abstract 2
- 229910052719 titanium Inorganic materials 0.000 abstract 2
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 abstract 2
- FHVAUDREWWXPRW-UHFFFAOYSA-N triethoxy(pentyl)silane Chemical compound CCCCC[Si](OCC)(OCC)OCC FHVAUDREWWXPRW-UHFFFAOYSA-N 0.000 abstract 2
- JCVQKRGIASEUKR-UHFFFAOYSA-N triethoxy(phenyl)silane Chemical compound CCO[Si](OCC)(OCC)C1=CC=CC=C1 JCVQKRGIASEUKR-UHFFFAOYSA-N 0.000 abstract 2
- WVMSIBFANXCZKT-UHFFFAOYSA-N triethyl(hydroxy)silane Chemical compound CC[Si](O)(CC)CC WVMSIBFANXCZKT-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910052726 zirconium Inorganic materials 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 239000000725 suspension Substances 0.000 abstract 1
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
- C09C1/36—Compounds of titanium
- C09C1/3692—Combinations of treatments provided for in groups C09C1/3615 - C09C1/3684
-
- 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
- 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
- C09C3/12—Treatment with organosilicon compounds
-
- 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
-
- 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
- C01P2006/19—Oil-absorption capacity, e.g. DBP 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
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
Titanium dioxide is subjected to the action of the vapour of a halogen-free non-polymerized organosilicon compound R(4-n)Si(OR1)n where R is alkyl, aryl or hydrogen, R1 is alkyl or hydrogen and n is an integer from 1-3, whereby deposition and polymerization take place to form an organosiloxane coating which renders the material hydrophobic and lyophilic and thus readily dispersible in oil and organic solvents such as acetone and acetonitrile. Preferably the titanium dioxide is first coated with 0.2-1.7% of a water-insoluble hydrous oxide of a polyvalent metal or metalloid (e.g. aluminium, silicon, titanium or zirconium) and dried before introduction into the vapour; such coatings may be applied by drying a mixed suspension in water of the titanium dioxide and the hydrous oxide. The siloxane coating may comprise from 0.2-5% of the weight of pigment. The siloxane coating is preferably prepared during the final milling of the titanium dioxide; the organosilicon monomer may be introduced into the mill as a solid, liquid or vapour and the temperature must be maintained high enough to vaporize the monomer or maintain it in the vapour state. Such temperatures may vary from room temperature to 250 DEG C. depending on the compound used, but with higher boiling point compounds having considerable vapour pressures the temperature used may be less than the boiling point. Organosilicon compounds specified are methyl alkoxysilanes (e.g. trimethylmonoethoxysilane, dimethyldiethoxysilane and monomethyltriethoxysilane), vinyltriethoxysilane, amyltriethoxysilane, ethyltriamoxysilane; arylalkoxysilanes (phenyltriethoxysilane) and silanols (trimethyl and triethyl silanol).ALSO:The vapour of a halogen-free non-polymerized organosilicon compound R(4-n)Si(OR1)n, where R is alkyl, aryl or hydrogen, R1 is alkyl or hydrogen and n is an integer from 1-3, is brought into contact with titanium dioxide whereby deposition and polymerization take place to form an organosiloxane coating which renders the material hydrophobic and lyophilic and thus readily dispersible in oil and organic solvents such as acetone and acetonitrile. Preferably the titanium dioxide is first coated with 0.2-1.7% of a water-insoluble hydrous oxide of a polyvalent metal or metalloid (e.g. aluminium, silicon, titanium or zirconium) and dried before introduction into the vapour. The siloxane coating may comprise from 0.2-5% of the weight of pigment. The siloxane coating is preferably prepared during the final milling of the titanium dioxide; the organosilicon monomer may be introduced into the mill as a solid, liquid or vapour and the temperature must be maintained high enough to vaporize the monomer or maintain it in the vapour state. Such temperatures may vary from room temperature to 250 DEG C. depending on the compound used, but with higher boiling point compounds having considerable vapour pressures, the temperature used may be less than the boiling point. Organosilicon compounds specified are: methyl alkoxysilanes (e.g. trimethylmonoethoxysilane, dimethyldiethoxysilane and monomethyltriethoxysilane), vinyltriethoxysilane, amyltriethoxysilane, ethyltriamoxysilane; arylalkoxysilanes (phenyltriethoxysilane) and silanols (trimethyl and triethyl silanol). It is considered that polymerization takes place due to hydrolysis of the monomer vapour with water adsorbed on the pigment or with a hydrous coating applied thereto.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US825404XA | 1956-05-16 | 1956-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB825404A true GB825404A (en) | 1959-12-16 |
Family
ID=22171835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13766/57A Expired GB825404A (en) | 1956-05-16 | 1957-04-30 | Method for coating titanium dioxide pigment |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE557402A (en) |
| FR (1) | FR1170017A (en) |
| GB (1) | GB825404A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4318843A (en) | 1979-06-20 | 1982-03-09 | Bayer Aktiengesellschaft | Inorganic pigments with improved gloss and good distribution in lacquer binders |
| US4318844A (en) | 1979-06-20 | 1982-03-09 | Bayer Aktiengesellschaft | Inorganic pigments with improved gloss and distribution in lacquer binders |
| WO1997020001A1 (en) * | 1995-12-01 | 1997-06-05 | Scm Chemicals, Inc. | Silane treated inorganic pigments |
| US5889090A (en) * | 1994-02-28 | 1999-03-30 | E. I. Dupont Denemours & Company | Processibility and lacing resistance when silanized pigments are incorporated in polymers |
| US9139737B1 (en) | 2011-11-21 | 2015-09-22 | Nanophase Technologies Corporation | Multifunctional coated powders and high solids dispersions |
| WO2017019026A1 (en) | 2015-07-27 | 2017-02-02 | Nanophase Technologies Corporation | Multifunctional coated powders and high solids dispersions |
| WO2018191245A1 (en) | 2017-04-10 | 2018-10-18 | Sarkas Harry W | Coated powders having high photostability |
| US10555892B1 (en) | 2017-03-09 | 2020-02-11 | Nanophase Technologies Corporation | Functionalized siloxane or polysiloxane coated particles with enhanced light filtering properties |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63113081A (en) * | 1985-07-29 | 1988-05-18 | Shiseido Co Ltd | Modified powder |
| EP0224978B1 (en) * | 1985-07-29 | 1992-01-22 | Shiseido Company Limited | Silicone polymer-coated powder or particulate material |
| EP0417866B1 (en) * | 1985-07-29 | 1997-12-03 | Shiseido Company Limited | Silicone polymer-coated powder or particulate material |
| DE3684836D1 (en) * | 1985-07-29 | 1992-05-21 | Shiseido Co Ltd | POWDER COVERED WITH SILICONE POLYMER OR PARTICULAR MATERIAL. |
-
0
- BE BE557402D patent/BE557402A/xx unknown
-
1957
- 1957-03-25 FR FR1170017D patent/FR1170017A/en not_active Expired
- 1957-04-30 GB GB13766/57A patent/GB825404A/en not_active Expired
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4318843A (en) | 1979-06-20 | 1982-03-09 | Bayer Aktiengesellschaft | Inorganic pigments with improved gloss and good distribution in lacquer binders |
| US4318844A (en) | 1979-06-20 | 1982-03-09 | Bayer Aktiengesellschaft | Inorganic pigments with improved gloss and distribution in lacquer binders |
| US5889090A (en) * | 1994-02-28 | 1999-03-30 | E. I. Dupont Denemours & Company | Processibility and lacing resistance when silanized pigments are incorporated in polymers |
| US5959004A (en) * | 1994-02-28 | 1999-09-28 | E. I. Du Pont De Nemours And Company | Processibility and lacing resistance when silanized pigments are incorporated in polymers |
| WO1997020001A1 (en) * | 1995-12-01 | 1997-06-05 | Scm Chemicals, Inc. | Silane treated inorganic pigments |
| US5653794A (en) * | 1995-12-01 | 1997-08-05 | Scm Chemicals, Inc. | Silane treated inorganic pigments |
| US9139737B1 (en) | 2011-11-21 | 2015-09-22 | Nanophase Technologies Corporation | Multifunctional coated powders and high solids dispersions |
| US9657183B2 (en) | 2011-11-21 | 2017-05-23 | Nanophase Technologies Corporation | Multifunctional coated powders and high solids dispersions |
| US10544316B2 (en) | 2011-11-21 | 2020-01-28 | Nanophase Technologies Corporation | Multifunctional coated powders and high solids dispersions |
| WO2017019026A1 (en) | 2015-07-27 | 2017-02-02 | Nanophase Technologies Corporation | Multifunctional coated powders and high solids dispersions |
| EP3369785A1 (en) | 2015-07-27 | 2018-09-05 | Nanophase Technologies Corporation | Multifunctional coated powders and high solids dispersions |
| US10555892B1 (en) | 2017-03-09 | 2020-02-11 | Nanophase Technologies Corporation | Functionalized siloxane or polysiloxane coated particles with enhanced light filtering properties |
| WO2018191245A1 (en) | 2017-04-10 | 2018-10-18 | Sarkas Harry W | Coated powders having high photostability |
| US10590278B2 (en) | 2017-04-10 | 2020-03-17 | Nanophase Technologies Corporation | Coated powders having high photostability |
| US11499054B2 (en) | 2017-04-10 | 2022-11-15 | Nanophase Technologies Corporation | Coated powders having high photostability |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1170017A (en) | 1959-01-08 |
| BE557402A (en) |
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