ES487399A1 - Silica gel - Google Patents
Silica gelInfo
- Publication number
- ES487399A1 ES487399A1 ES487399A ES487399A ES487399A1 ES 487399 A1 ES487399 A1 ES 487399A1 ES 487399 A ES487399 A ES 487399A ES 487399 A ES487399 A ES 487399A ES 487399 A1 ES487399 A1 ES 487399A1
- Authority
- ES
- Spain
- Prior art keywords
- silica gel
- hydrogel
- washing
- surface area
- less
- 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
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title abstract 9
- 239000000741 silica gel Substances 0.000 title abstract 3
- 229910002027 silica gel Inorganic materials 0.000 title abstract 3
- 239000000017 hydrogel Substances 0.000 abstract 3
- 239000011148 porous material Substances 0.000 abstract 3
- 239000000377 silicon dioxide Substances 0.000 abstract 3
- 230000032683 aging Effects 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000005498 polishing Methods 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 229940034610 toothpaste Drugs 0.000 abstract 1
- 239000000606 toothpaste Substances 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/113—Silicon oxides; Hydrates thereof
- C01B33/12—Silica; Hydrates thereof, e.g. lepidoic silicic acid
- C01B33/14—Colloidal silica, e.g. dispersions, gels, sols
- C01B33/157—After-treatment of gels
- C01B33/158—Purification; Drying; Dehydrating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Silicon Compounds (AREA)
- Cosmetics (AREA)
Abstract
A toothpaste may contain as an abrading and polishing agent a silica gel having an average particle size of 1 to 30 microns and a) a surface area of 1 to 600 m<2>/g, b) a pore volume of 0.05 to 0.5 cm<3>/g, c) a product of surface area (in m<2>/g) x pore volume (in cm<3>/g) less than or equal to 240, d) a calculated pore diameter of 1.5 to 2.5 nm, and e) a water content of less than 25% by weight which is produced by gelling an aqueous silicate solution to form a silica hydrogel, washing the silica hydrogel to a purity of about 90 to 99% by weight SiO2 (based on the calcination loss-free substance) at a pH value below 6 and at a temperature of about 0 to 70 DEG C and grinding and drying the washed hydrogel so as to prevent ageing, the washing and drying conditions to prevent ageing being set so that the silica gel product has the desired properties. a
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2853647A DE2853647C3 (en) | 1978-12-13 | 1978-12-13 | Process for the preparation of silica gels and their use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES487399A1 true ES487399A1 (en) | 1980-09-16 |
Family
ID=6056941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES487399A Expired ES487399A1 (en) | 1978-12-13 | 1979-12-13 | Silica gel |
Country Status (19)
| Country | Link |
|---|---|
| JP (1) | JPS55104911A (en) |
| AT (1) | ATA784279A (en) |
| AU (1) | AU534199B2 (en) |
| BE (1) | BE880583A (en) |
| BR (1) | BR7908104A (en) |
| CH (1) | CH650754A5 (en) |
| DE (1) | DE2853647C3 (en) |
| DK (1) | DK528979A (en) |
| ES (1) | ES487399A1 (en) |
| FR (1) | FR2444004A1 (en) |
| GB (1) | GB2038303B (en) |
| IE (1) | IE49319B1 (en) |
| IT (1) | IT1126543B (en) |
| MY (1) | MY8400226A (en) |
| NL (1) | NL7908956A (en) |
| PH (1) | PH16359A (en) |
| PT (1) | PT70577A (en) |
| SE (1) | SE439296B (en) |
| ZA (1) | ZA796752B (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4279879A (en) * | 1979-10-01 | 1981-07-21 | W. R. Grace & Co. | Silica gel |
| DE3236180A1 (en) * | 1982-09-30 | 1984-04-05 | Akzo Gmbh, 5600 Wuppertal | Silica loaded with surfactant, process for its production and use |
| US4569838A (en) * | 1983-12-23 | 1986-02-11 | Colgate-Palmolive Company | Dentifrice |
| US4631184A (en) * | 1984-01-10 | 1986-12-23 | W. R. Grace & Co. | Dialytic silica dentifrice |
| US4528181A (en) * | 1984-02-01 | 1985-07-09 | Colgate-Palmolive Company | Dentifrice containing dual sources of fluoride |
| AU578392B2 (en) * | 1984-07-31 | 1988-10-20 | Lion Corporation | Toothpaste composition containing silica |
| GB8419708D0 (en) * | 1984-08-02 | 1984-09-05 | Shell Int Research | Preparation of silica spheres |
| DE3430801A1 (en) * | 1984-08-22 | 1986-03-06 | Bayer Ag, 5090 Leverkusen | USE OF POROUS FILLERS IN POLYMERIZABLE MEASURES, SUCH MEASURES AND THE USE THEREOF FOR THE PRODUCTION OF MOLDED BODIES |
| US4659504A (en) * | 1984-11-30 | 1987-04-21 | Colgate-Palmolive Company | Preparation of phytate-salt free gel dentifrice |
| US4575456A (en) * | 1984-11-30 | 1986-03-11 | Colgate-Palmolive Company | Gel dentifrice of desirable consistency |
| NZ214031A (en) * | 1984-12-11 | 1989-05-29 | Colgate Palmolive Co | Astringent dentifrice containing synthetic, precipitated, amorphous silica gel as polishing agent |
| US4562065A (en) * | 1984-12-11 | 1985-12-31 | Colgate-Palmolive Company | Astringent dentifrice |
| US4562066A (en) * | 1984-12-11 | 1985-12-31 | Colgate-Palmolive Company | Astringent dentifrice containing monofluorophosphate |
| US4562063A (en) * | 1984-12-11 | 1985-12-31 | Colgate-Palmolive Company | Astringent gel dentifrice |
| GB8529796D0 (en) * | 1985-12-03 | 1986-01-08 | Unilever Plc | Precipitated silicas |
| GB8604985D0 (en) * | 1986-02-28 | 1986-04-09 | Unilever Plc | Precipitated silicas |
| PT85223B (en) * | 1986-07-22 | 1990-03-30 | Grace W R & Co | PROCESS FOR THE PREPARATION OF AEROGELES DE SILICA AND DENTIFICAL COMPOSITIONS |
| JPS6371054U (en) * | 1986-10-29 | 1988-05-12 | ||
| JPS63100055U (en) * | 1986-12-20 | 1988-06-29 | ||
| GB8721644D0 (en) * | 1987-09-15 | 1987-10-21 | Unilever Plc | Silicas |
| JPH0187763U (en) * | 1987-12-02 | 1989-06-09 | ||
| JPH0242010U (en) * | 1988-06-24 | 1990-03-23 | ||
| JPH02131457U (en) * | 1989-04-10 | 1990-11-01 | ||
| US5676932A (en) † | 1995-05-02 | 1997-10-14 | J.M. Huber Corporation | Silica abrasive compositions |
| DE19615763C2 (en) * | 1996-04-20 | 1999-10-28 | Heraeus Kulzer Gmbh & Co Kg | Silica-based filler, process for its preparation and its use |
| US5939051A (en) * | 1998-02-27 | 1999-08-17 | Colgate-Palmolive Company | Dental abrasive |
| CN105686328A (en) | 2009-07-31 | 2016-06-22 | 高露洁-棕榄公司 | High cleaning dentifrice compositions |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE292006C (en) * | ||||
| GB263199A (en) * | 1925-12-19 | 1928-03-20 | Ig Farbenindustrie Ag | An improved process for the production of active silica gels with fine capillary pores |
| US3243262A (en) * | 1963-02-18 | 1966-03-29 | Grace W R & Co | Process for preparing microspheroidal silica |
| GB1077908A (en) * | 1965-05-05 | 1967-08-02 | Grace W R & Co | Process for the production of silica gels |
| SE343477C (en) * | 1966-12-05 | 1977-09-26 | Unilever Nv | TOOTH CREAM COMPOSITION CONTAINING A SILICO DIOXIDE |
| GB1264292A (en) * | 1969-03-28 | 1972-02-16 | ||
| JPS52102440A (en) * | 1976-02-05 | 1977-08-27 | Grace W R & Co | Mouth and tooth cleaning compound |
-
1978
- 1978-12-13 DE DE2853647A patent/DE2853647C3/en not_active Expired
-
1979
- 1979-12-07 IT IT27961/79A patent/IT1126543B/en active
- 1979-12-11 SE SE7910212A patent/SE439296B/en not_active IP Right Cessation
- 1979-12-12 IE IE2408/79A patent/IE49319B1/en not_active IP Right Cessation
- 1979-12-12 FR FR7930458A patent/FR2444004A1/en active Granted
- 1979-12-12 AT AT0784279A patent/ATA784279A/en not_active Application Discontinuation
- 1979-12-12 GB GB7942821A patent/GB2038303B/en not_active Expired
- 1979-12-12 PH PH23410A patent/PH16359A/en unknown
- 1979-12-12 PT PT70577A patent/PT70577A/en unknown
- 1979-12-12 NL NL7908956A patent/NL7908956A/en not_active Application Discontinuation
- 1979-12-12 BR BR7908104A patent/BR7908104A/en unknown
- 1979-12-12 AU AU53723/79A patent/AU534199B2/en not_active Ceased
- 1979-12-12 ZA ZA00796752A patent/ZA796752B/en unknown
- 1979-12-12 BE BE0/198541A patent/BE880583A/en not_active IP Right Cessation
- 1979-12-12 JP JP16042879A patent/JPS55104911A/en active Granted
- 1979-12-12 DK DK528979A patent/DK528979A/en not_active Application Discontinuation
- 1979-12-13 ES ES487399A patent/ES487399A1/en not_active Expired
- 1979-12-13 CH CH11059/79A patent/CH650754A5/en not_active IP Right Cessation
-
1984
- 1984-12-30 MY MY226/84A patent/MY8400226A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2853647B2 (en) | 1980-11-06 |
| SE7910212L (en) | 1980-06-14 |
| FR2444004A1 (en) | 1980-07-11 |
| NL7908956A (en) | 1980-06-17 |
| SE439296B (en) | 1985-06-10 |
| ATA784279A (en) | 1985-09-15 |
| AU534199B2 (en) | 1984-01-12 |
| IT7927961A0 (en) | 1979-12-07 |
| ZA796752B (en) | 1980-12-31 |
| GB2038303B (en) | 1982-11-17 |
| DE2853647A1 (en) | 1980-06-26 |
| IT1126543B (en) | 1986-05-21 |
| FR2444004B1 (en) | 1983-01-28 |
| PT70577A (en) | 1980-01-01 |
| IE792408L (en) | 1980-06-13 |
| AU5372379A (en) | 1980-07-10 |
| IE49319B1 (en) | 1985-09-18 |
| GB2038303A (en) | 1980-07-23 |
| JPS55104911A (en) | 1980-08-11 |
| CH650754A5 (en) | 1985-08-15 |
| BE880583A (en) | 1980-04-01 |
| JPS6242848B2 (en) | 1987-09-10 |
| MY8400226A (en) | 1984-12-31 |
| PH16359A (en) | 1983-09-08 |
| DE2853647C3 (en) | 1988-04-14 |
| DK528979A (en) | 1980-06-14 |
| BR7908104A (en) | 1980-07-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |
Effective date: 19960506 |