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FR2257658A1 - Polymsd synthetic silica pigments for toothpastes - prepd. by pptn. from a soln. contg. silicate, acid and electrolyte - Google Patents

Polymsd synthetic silica pigments for toothpastes - prepd. by pptn. from a soln. contg. silicate, acid and electrolyte

Info

Publication number
FR2257658A1
FR2257658A1 FR7431912A FR7431912A FR2257658A1 FR 2257658 A1 FR2257658 A1 FR 2257658A1 FR 7431912 A FR7431912 A FR 7431912A FR 7431912 A FR7431912 A FR 7431912A FR 2257658 A1 FR2257658 A1 FR 2257658A1
Authority
FR
France
Prior art keywords
electrolyte
silicate
acid
polymsd
prepd
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
FR7431912A
Other languages
French (fr)
Other versions
FR2257658B1 (en
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.)
SIFRANCE
Original Assignee
SIFRANCE
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
Priority claimed from US05/402,928 external-priority patent/US3960586A/en
Application filed by SIFRANCE filed Critical SIFRANCE
Publication of FR2257658A1 publication Critical patent/FR2257658A1/en
Application granted granted Critical
Publication of FR2257658B1 publication Critical patent/FR2257658B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C01B33/18—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/187—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
    • C01B33/193—Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates
    • 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
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/02—Amorphous compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/50—Agglomerated particles
    • C—CHEMISTRY; METALLURGY
    • 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
    • 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
    • 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
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/10—Solid density
    • 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
    • C01P2006/11—Powder tap density
    • 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
    • C01P2006/19—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
    • C01P2006/21—Attrition-index or crushing strength of granulates
    • 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
    • C01P2006/82—Compositional purity water content
    • 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
    • C01P2006/90—Other properties not specified above

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Cosmetics (AREA)
  • Silicon Compounds (AREA)

Abstract

Silica polymers are prepd. by simultaneous addn., to an aq. soln. of an electrolyte, e.g. Na2SO4, 3-15 wt. % of 10-25% acid, e.g. H2SO4, HC1, HNO3, and 120-300g (per 1 of the silicate) of an alkali metal at a pH, pref. 8-10.4, such that polymsd. SiO2 is immediately pptd. The anion of the electrolyte is pref. derived from the acid used. The silicate may have ratios of SiO2:M2O (where M is Na, K or Li) of 1-4:1, pref. 2-2.8:1. The cation of the electrolyte may be Na, K, Li or NH4. Additives such as water-sol. salts of aluminium and alkaline earth metals are used to control the refractive index of the pigment for use in transparent toothpastes. The silica ppts. are very stable, compatible with fluorides and have similar cleaning powers to those of phosphates.
FR7431912A 1973-10-03 1974-09-20 Polymsd synthetic silica pigments for toothpastes - prepd. by pptn. from a soln. contg. silicate, acid and electrolyte Granted FR2257658A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40312973A 1973-10-03 1973-10-03
US05/402,928 US3960586A (en) 1973-10-03 1973-10-03 Amorphous precipitated siliceous pigments and improved process for producing such pigments

Publications (2)

Publication Number Publication Date
FR2257658A1 true FR2257658A1 (en) 1975-08-08
FR2257658B1 FR2257658B1 (en) 1977-07-08

Family

ID=27018090

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7431912A Granted FR2257658A1 (en) 1973-10-03 1974-09-20 Polymsd synthetic silica pigments for toothpastes - prepd. by pptn. from a soln. contg. silicate, acid and electrolyte

Country Status (7)

Country Link
CH (1) CH595284A5 (en)
DE (1) DE2446038B2 (en)
ES (1) ES430647A1 (en)
FR (1) FR2257658A1 (en)
IT (1) IT1019463B (en)
LU (1) LU71031A1 (en)
NL (1) NL7412707A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3490086C3 (en) * 1983-03-04 1994-02-24 Taki Chemical Silica base material for dentifrices and process for its preparation

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2609831B2 (en) * 1976-03-10 1979-05-23 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Process for processing waste dust containing silicon dioxide into precipitated silicas and silicates
DE3114493A1 (en) * 1981-04-10 1982-10-28 Degussa Ag, 6000 Frankfurt "FELLING SILICONES AND METHOD FOR THE PRODUCTION THEREOF"
JPS59163306A (en) * 1983-03-08 1984-09-14 Taki Chem Co Ltd Silica as tooth paste base and its preparation
GB8604985D0 (en) * 1986-02-28 1986-04-09 Unilever Plc Precipitated silicas
GB8707526D0 (en) * 1987-03-30 1987-05-07 Unilever Plc Amorphous silicas
GB8721644D0 (en) * 1987-09-15 1987-10-21 Unilever Plc Silicas
EP0495039B2 (en) * 1990-08-06 2003-10-08 INEOS Silicas Limited Silicas
DE4133319A1 (en) * 1991-10-08 1993-04-15 Sued Chemie Ag Coarse milled amorphous pptd. silicic acid - used in heat-sensitive recording media opt. together with finely-divided white pigment
DE102015214344A1 (en) 2015-07-29 2017-02-02 Evonik Degussa Gmbh Process for the preparation of precipitated silicas and method for the measurement of the exudation factor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966985C (en) * 1950-12-02 1957-09-26 Degussa Process for the production of a finely divided, non-gelatinous silica which is particularly suitable as a filler for natural and synthetic rubber and other elastomers
BE629129A (en) * 1962-03-02
DE2020887B2 (en) * 1970-04-29 1975-01-09 Akzo Chemie Gmbh, 5160 Dueren Process for the production of a low surface area silica and the use of this silica as a reinforcing filler in elastomers
DE2206285C3 (en) * 1972-02-10 1986-01-02 Degussa Ag, 6000 Frankfurt Transparent dental care and cleaning products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3490086C3 (en) * 1983-03-04 1994-02-24 Taki Chemical Silica base material for dentifrices and process for its preparation

Also Published As

Publication number Publication date
CH595284A5 (en) 1978-02-15
IT1019463B (en) 1977-11-10
ES430647A1 (en) 1977-03-16
DE2446038B2 (en) 1978-06-15
FR2257658B1 (en) 1977-07-08
DE2446038A1 (en) 1975-04-24
LU71031A1 (en) 1975-06-24
NL7412707A (en) 1975-04-07

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Legal Events

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ST Notification of lapse