GB1548465A - Stabilization of calcium hydrogen phosphate dihydrate - Google Patents

Stabilization of calcium hydrogen phosphate dihydrate

Info

Publication number
GB1548465A
GB1548465A GB4329377A GB4329377A GB1548465A GB 1548465 A GB1548465 A GB 1548465A GB 4329377 A GB4329377 A GB 4329377A GB 4329377 A GB4329377 A GB 4329377A GB 1548465 A GB1548465 A GB 1548465A
Authority
GB
United Kingdom
Prior art keywords
stabilization
hydrogen phosphate
calcium hydrogen
phosphate dihydrate
dihydrate
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
Application number
GB4329377A
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of GB1548465A publication Critical patent/GB1548465A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A61K8/24—Phosphorous; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
    • C01B25/327—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
    • C01B25/34—Magnesium phosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Cosmetics (AREA)
  • Paper (AREA)
GB4329377A 1976-10-23 1977-10-18 Stabilization of calcium hydrogen phosphate dihydrate Expired GB1548465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762648061 DE2648061C2 (en) 1976-10-23 1976-10-23 Method for stabilizing di-calcium hydrogen phosphate dihydrate

Publications (1)

Publication Number Publication Date
GB1548465A true GB1548465A (en) 1979-07-18

Family

ID=5991226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4329377A Expired GB1548465A (en) 1976-10-23 1977-10-18 Stabilization of calcium hydrogen phosphate dihydrate

Country Status (6)

Country Link
BE (1) BE859968A (en)
CA (1) CA1090531A (en)
DE (1) DE2648061C2 (en)
FR (1) FR2368440A1 (en)
GB (1) GB1548465A (en)
NL (1) NL184943C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121278A (en) * 1982-04-20 1983-12-21 Beecham Group Plc Oral hygiene compositions
US4472365A (en) * 1981-06-15 1984-09-18 Stauffer Chemical Company Dicalcium phosphate dihydrate having improved monofluorophosphate compatibility and process for the preparation thereof
US4931272A (en) * 1987-02-24 1990-06-05 Hoechst Aktiengesellschaft Tooth pastes, cleaning agent for tooth pastes based on dicalcium phosphate-dihydrate, and process for making such cleaning agent
EP0475482A1 (en) 1990-09-13 1992-03-18 Akzo Nobel N.V. Stabilized solid chemical compositions
US5292520A (en) * 1990-09-13 1994-03-08 Akzo N.V. Stabilized solid pharmaceutical composition containing acid addition salts of a basic drug and an alkaline stabilizer
EP0612687A1 (en) * 1993-02-20 1994-08-31 Hoechst Aktiengesellschaft Process for the preparation of a dicalcium phosphate dihydrate suitable for incorporation in toothpaste
US5427755A (en) * 1993-03-04 1995-06-27 Hoechst Aktiengesellschaft Process for the preparation of a dicalcium phosphate dihydrate suitable for use in toothpastes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045826A1 (en) * 1980-08-12 1982-02-17 Monsanto Company Dicalcium phosphate dihydrate having improved stability and a method for preparing it
DE3915746A1 (en) * 1989-05-13 1990-11-15 Hoechst Ag METHOD AND SYSTEM FOR THE PRODUCTION OF DICALCIUMPHOSPHATE

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2133286A (en) * 1937-05-11 1938-10-18 Rumford Chemical Works Acid calcium tetraphosphate and method of making the same
US2287699A (en) * 1940-02-15 1942-06-23 Monsanto Chemicals Stabilized dicalcium phosphate
FR1483486A (en) * 1965-06-16 1967-06-02 Knapsack Ag Process for the preparation of stabilized dicalcium phosphate dihydrate
DE2456808A1 (en) * 1974-11-30 1976-08-12 Henkel & Cie Gmbh PROCESS FOR STABILIZING CALCIUM HYDROGEN PHOSPHATE ANHYDRIDE AGAINST REALIZATION WITH FLUORIONS
DE2456787A1 (en) * 1974-11-30 1976-08-12 Henkel & Cie Gmbh PROCEDURE FOR STABILIZING CALCIUM HYDROGEN PHOSPHATE DIHYDRATE AGAINST HYDROLYSIS
DE2456667A1 (en) * 1974-11-30 1976-08-12 Henkel & Cie Gmbh PROCESS FOR STABILIZING CALCIUM HYDROGEN PHOSPHATE ANHYDRIDE AGAINST REALIZATION WITH FLUORION IONS
DE2456692A1 (en) * 1974-11-30 1976-08-12 Henkel & Cie Gmbh PROCEDURE FOR STABILIZING CALCIUM HYDROGEN PHOSPHATE DIHYDRATE AGAINST HYDROLYSIS
DE2456693A1 (en) * 1974-11-30 1976-08-12 Henkel & Cie Gmbh PROCESS FOR STABILIZING CALCIUM HYDROGEN PHOSPHATE ANHYDRIDE AGAINST REALIZATION WITH FLUORIONS
DE2456666A1 (en) * 1974-11-30 1976-08-12 Henkel & Cie Gmbh METHOD OF STABILIZING CALCIUM HYDROGEN PHOSPHATE DIHYDRATE AGAINST HYDROLYSIS

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472365A (en) * 1981-06-15 1984-09-18 Stauffer Chemical Company Dicalcium phosphate dihydrate having improved monofluorophosphate compatibility and process for the preparation thereof
GB2121278A (en) * 1982-04-20 1983-12-21 Beecham Group Plc Oral hygiene compositions
US4931272A (en) * 1987-02-24 1990-06-05 Hoechst Aktiengesellschaft Tooth pastes, cleaning agent for tooth pastes based on dicalcium phosphate-dihydrate, and process for making such cleaning agent
EP0475482A1 (en) 1990-09-13 1992-03-18 Akzo Nobel N.V. Stabilized solid chemical compositions
US5292520A (en) * 1990-09-13 1994-03-08 Akzo N.V. Stabilized solid pharmaceutical composition containing acid addition salts of a basic drug and an alkaline stabilizer
US5441747A (en) * 1990-09-13 1995-08-15 Akzo N.V. Stabilized solid pharmaceutical composition containing acid addition salts of a basic drug and an alkaline stabilizer
EP0612687A1 (en) * 1993-02-20 1994-08-31 Hoechst Aktiengesellschaft Process for the preparation of a dicalcium phosphate dihydrate suitable for incorporation in toothpaste
US5427756A (en) * 1993-02-20 1995-06-27 Hoechst Aktiengesellschaft Process for the preparation of a dicalcium phosphate dihydrate suitable for use in toothpastes
US5427755A (en) * 1993-03-04 1995-06-27 Hoechst Aktiengesellschaft Process for the preparation of a dicalcium phosphate dihydrate suitable for use in toothpastes

Also Published As

Publication number Publication date
DE2648061A1 (en) 1978-04-27
FR2368440B1 (en) 1982-03-26
NL184943B (en) 1989-07-17
CA1090531A (en) 1980-12-02
NL184943C (en) 1989-12-18
FR2368440A1 (en) 1978-05-19
DE2648061C2 (en) 1982-11-04
NL7711428A (en) 1978-04-25
BE859968A (en) 1978-04-21

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19931018