[go: up one dir, main page]

FI902208A0 - Silica for toothpastes, especially compatible with metal cations - Google Patents

Silica for toothpastes, especially compatible with metal cations

Info

Publication number
FI902208A0
FI902208A0 FI902208A FI902208A FI902208A0 FI 902208 A0 FI902208 A0 FI 902208A0 FI 902208 A FI902208 A FI 902208A FI 902208 A FI902208 A FI 902208A FI 902208 A0 FI902208 A0 FI 902208A0
Authority
FI
Finland
Prior art keywords
silica
equal
aqueous suspension
electrical conductivity
expressed
Prior art date
Application number
FI902208A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI91387B (en
FI91387C (en
Inventor
Jacques Persello
Original Assignee
Rhone Poulenc Chimie
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
Application filed by Rhone Poulenc Chimie filed Critical Rhone Poulenc Chimie
Publication of FI902208A0 publication Critical patent/FI902208A0/en
Publication of FI91387B publication Critical patent/FI91387B/en
Application granted granted Critical
Publication of FI91387C publication Critical patent/FI91387C/en

Links

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
    • 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
    • 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
    • C01B33/152—Preparation of hydrogels
    • C01B33/154—Preparation of hydrogels by acidic treatment of aqueous silicate solutions
    • 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
    • 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
    • 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
    • C01P2004/60—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
    • 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
    • C01P2006/14—Pore volume
    • 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
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Public Health (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Cosmetics (AREA)
  • Silicon Compounds (AREA)
  • Dental Preparations (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Glass Compositions (AREA)

Abstract

Silica compatible with metal ions such as zinc, tin or strontium, characterised by a surface OH<-> number expressed as OH<->/nm<2> lower than or equal to 10, a zero charge point (ZCP) of between 3 and 6.5 and resulting in an aqueous suspension whose pH varies as a function of its electrical conductivity according to the equation - pH = b - a log (D), in which a is a constant lower than or equal to 0.6, b is a constant lower than or equal to 8.5 and (D) represents the electrical conductivity of the aqueous suspension of silica, expressed in microsiemens cm<-><1>. Process for preparing the silica, consisting in reacting a silicate with an acid, thus resulting in a silica suspension or gel, in performing a first aging at a pH higher than or equal to 6 and lower than or equal to 8.5, then a second aging at a pH lower than or equal to 5.0, in separating off the silica, in subjecting it to washing with hot water until it produces an aqueous suspension whose pH measured on a suspension containing 20 % of SiO2 obeys the equation - pH = d - c log (D> in which c is a constant lower than or equal to 1.0, d is a constant lower than or equal to 8.5 and (D) denotes the electrical conductivity of the aqueous suspension of silica, expressed in microsiemens cm<-><1>; and finally in drying it. Dentifrice composition containing the silica described.
FI902208A 1989-05-03 1990-05-02 Silica for toothpastes, especially compatible with metal cations FI91387C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8905869 1989-05-03
FR8905869A FR2646665B1 (en) 1989-05-03 1989-05-03 SILICA FOR TOOTHPASTE COMPOSITIONS COMPATIBLE IN PARTICULAR WITH METAL CATIONS

Publications (3)

Publication Number Publication Date
FI902208A0 true FI902208A0 (en) 1990-05-02
FI91387B FI91387B (en) 1994-03-15
FI91387C FI91387C (en) 1994-06-27

Family

ID=9381381

Family Applications (1)

Application Number Title Priority Date Filing Date
FI902208A FI91387C (en) 1989-05-03 1990-05-02 Silica for toothpastes, especially compatible with metal cations

Country Status (24)

Country Link
EP (1) EP0396460B1 (en)
JP (1) JPH0660010B2 (en)
KR (1) KR920008563B1 (en)
CN (2) CN1023105C (en)
AT (1) ATE81333T1 (en)
AU (1) AU632805B2 (en)
BR (1) BR9002064A (en)
CA (1) CA2015921C (en)
DE (1) DE69000369T2 (en)
DK (1) DK0396460T3 (en)
ES (1) ES2036093T3 (en)
FI (1) FI91387C (en)
FR (1) FR2646665B1 (en)
GR (1) GR3006675T3 (en)
HK (1) HK129893A (en)
IE (1) IE63592B1 (en)
IL (1) IL94248A0 (en)
MA (1) MA21827A1 (en)
NO (1) NO901884L (en)
PT (1) PT93950B (en)
SG (1) SG116793G (en)
TN (1) TNSN90057A1 (en)
TR (1) TR24206A (en)
ZA (1) ZA903325B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2714369B1 (en) * 1993-12-29 1996-01-26 Rhone Poulenc Chimie Abrasive silicas for toothpaste compositions.
GB9601084D0 (en) † 1996-01-19 1996-03-20 Unilever Plc Amorphous silicas and oral compositions
JP2001089128A (en) * 1998-04-10 2001-04-03 Asahi Glass Co Ltd Production of spherical silica particle
FR2886285B1 (en) * 2005-05-27 2008-05-30 Rhodia Chimie Sa PROCESS FOR THE PREPARATION OF PRECIPITATED SILICA, PRECIPITATED SILICA AND USES, IN PARTICULAR AS CHARGING IN SILICONE MATRICES
KR101317439B1 (en) * 2006-10-31 2013-10-10 (주)아모레퍼시픽 Toothpaste composition for tooth whitening
US20100047742A1 (en) * 2008-08-25 2010-02-25 Pitcock Jr William Henry Tubule-blocking silica materials for dentifrices
DE102009001512A1 (en) * 2009-03-12 2010-09-16 Evonik Degussa Gmbh Production of high-purity suspensions containing precipitated silicas by electrodialysis
AR079182A1 (en) * 2009-06-16 2012-01-04 Grace W R & Co CATIONICO METAL OXIDES - COMPATIBLE AND COMPOSITIONS FOR BUCODENTAL CARE CONTAINING METAL OXIDES
US11052029B2 (en) 2009-06-16 2021-07-06 W. R. Grace & Co.-Conn. Cation compatible metal oxides and oral care compositions containing the metal oxides
US20110206749A1 (en) * 2010-02-19 2011-08-25 J.M. Huber Corporation Silica materials for reducing oral malador
SG11201401056SA (en) * 2011-09-30 2014-04-28 Rubicon Res Private Ltd Oral care compositions
FR3014312B1 (en) * 2013-12-05 2016-11-25 Oreal COMPOSITIONS COMPRISING A SEBUM PUMP LOAD AND A HIGH QUANTITY OF MONO-ALCOHOL
MX2016010402A (en) * 2014-02-14 2016-11-30 Rhodia Operations Process for the preparation of precipitated silicas, precipitated silicas and their uses, in particular for the reinforcement of polymers.
MX2016010401A (en) * 2014-02-14 2016-11-30 Rhodia Operations Process for the preparation of precipitated silicas, precipitated silicas and their uses, in particular for the reinforcement of polymers.
CN106009782B (en) * 2016-05-20 2017-07-07 广州市飞雪材料科技有限公司 A kind of preparation method of surface modified silicon dioxide particle
CN106865557A (en) * 2017-02-10 2017-06-20 福建正盛无机材料股份有限公司 A kind of preparation method of Tire used in winter white carbon
US11472710B2 (en) * 2018-03-29 2022-10-18 Tata Chemicals Limited Process for preparing precipitated silica
EP3810068B1 (en) * 2018-06-19 2025-02-19 Rhodia Operations Silica for oral care compositions
WO2021069256A1 (en) 2019-10-07 2021-04-15 Rhodia Operations Silica for oral care compositions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2344805A1 (en) * 1972-08-24 1974-03-21 Sifrance Silicon oxide pigments used for toothpaste prodn
CA996307A (en) * 1972-09-06 1976-09-07 Satish K. Wason Amorphous precipitated siliceous pigments and methods for their production
US4015996A (en) * 1974-10-31 1977-04-05 J. M. Huber Corporation Amorphous precipitated siliceous pigments
FR2562534B1 (en) * 1984-04-06 1986-06-27 Rhone Poulenc Chim Base NOVEL PRECIPITATED SILICA WITH IMPROVED MORPHOLOGICAL CHARACTERS, PROCESS FOR OBTAINING THE SAME AND APPLICATION THEREOF, IN PARTICULAR AS FILLER
FR2632185B1 (en) * 1988-06-01 1992-05-22 Rhone Poulenc Chimie SILICA FOR TOOTHPASTE COMPOSITIONS COMPATIBLE IN PARTICULAR WITH ZINC

Also Published As

Publication number Publication date
CN1043845C (en) 1999-06-30
KR920008563B1 (en) 1992-10-01
FR2646665A1 (en) 1990-11-09
AU5458190A (en) 1990-11-08
FI91387B (en) 1994-03-15
JPH02296712A (en) 1990-12-07
CN1081099A (en) 1994-01-26
EP0396460B1 (en) 1992-10-07
PT93950A (en) 1991-01-08
BR9002064A (en) 1991-08-13
AU632805B2 (en) 1993-01-14
CN1023105C (en) 1993-12-15
SG116793G (en) 1994-04-15
GR3006675T3 (en) 1993-06-30
PT93950B (en) 1996-11-29
IE901605L (en) 1990-11-03
CA2015921C (en) 1998-12-29
KR900017908A (en) 1990-12-20
DE69000369D1 (en) 1992-11-12
JPH0660010B2 (en) 1994-08-10
DK0396460T3 (en) 1992-11-16
MA21827A1 (en) 1990-12-31
HK129893A (en) 1993-12-03
CN1046877A (en) 1990-11-14
IL94248A0 (en) 1991-03-10
TR24206A (en) 1991-07-01
IE63592B1 (en) 1995-05-17
EP0396460A1 (en) 1990-11-07
NO901884L (en) 1990-11-05
ATE81333T1 (en) 1992-10-15
FR2646665B1 (en) 1991-11-29
NO901884D0 (en) 1990-04-27
FI91387C (en) 1994-06-27
ES2036093T3 (en) 1993-05-01
CA2015921A1 (en) 1990-11-03
DE69000369T2 (en) 1993-04-15
ZA903325B (en) 1991-02-27
TNSN90057A1 (en) 1991-03-05

Similar Documents

Publication Publication Date Title
FI902208A0 (en) Silica for toothpastes, especially compatible with metal cations
ES2030057T3 (en) A PRECIPITATED AMORPHOUS SILICE AND ITS PREPARATION METHOD.
ES8704356A1 (en) Removal of iodide compounds from non-aqueous organic media.
PL237497A1 (en) Method of obtaining compositions containing an inclusioncompound of p-hexadecylamino-benzoic acid in cyclodextrin
NO931097L (en) Process for improving water resistance to coating
IE792408L (en) Silica gel
DK254784D0 (en) ELECTRICAL INSULATION
DE3269331D1 (en) Arene-carboxylic acid derivatives used as agents having an anti-seborrhea effect contained in cosmetic compositions
JPS5325295A (en) Production of superfine particle silica
IT1119720B (en) PROCESS FOR THE MICROBIOLOGICAL PRODUCTION OF KETONES
BR8205981A (en) WINDOW CLEANER ELEMENT, BEHAVIORING WHITE WINDSCREEN WIPER WHITE SUBMITTED TO ACTION OF A COMPRESSION SPRING
RO83665A2 (en) CATALYTIC COMPOSITION USED TO OBTAIN NON-CURRENT ACIDS
FI872869A (en) FOERFARANDE FOER STABILIZERING AV ENZYMET LACTOPEROXIDAS I PRODUKTER.
DE3170695D1 (en) Method of monitoring the ion content of very pure water by conductivity measurement
EP0109818A3 (en) Process for the preparation of penicillin and cephalosporin sulfones
SU685625A1 (en) Method of popentiometric determination of phosphate/ions
JPS5580715A (en) Production of amorphous silica hydrate
IE790725L (en) Gefarnate-containing solid preparations
Kamenev et al. Use of the Gel-Like Electrolyte in Evaluation of Tendency of Kh 18 N 10 Type Steel to Intercrystalline Corrosion by the Potentiodynamic Reactivation Method
TH4944B (en) Silica for use in dental mixtures
Katorina et al. Study of Aluminum Hydroxide Fluoride Solubility in Water
SE8206565D0 (en) STABLE DENTIFRICE CONTAINING ACIDIC SILICEOUS POLISHING AGENT
KOWALSKI et al. Models for the photoelectrolytic decomposition of water at semiconducting oxide anodes[Interim Report]
TH6984B (en) Silica, especially for toothpaste mixtures, is compatible with various metal cations.
ATE7884T1 (en) PROCESS FOR MANUFACTURING A RAPID SOLUTION POLYPHOSPHATE GLASS.

Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed

Owner name: RHONE-POULENC CHIMIE