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GB1161289A - The Stabilization of Ascorbic Acid and of Derivatives thereof - Google Patents

The Stabilization of Ascorbic Acid and of Derivatives thereof

Info

Publication number
GB1161289A
GB1161289A GB2974268A GB2974268A GB1161289A GB 1161289 A GB1161289 A GB 1161289A GB 2974268 A GB2974268 A GB 2974268A GB 2974268 A GB2974268 A GB 2974268A GB 1161289 A GB1161289 A GB 1161289A
Authority
GB
United Kingdom
Prior art keywords
ascorbic acid
particles
siloxane
stabilization
derivatives
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
GB2974268A
Other languages
English (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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche 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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB1161289A publication Critical patent/GB1161289A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/365—Lactones
    • A61K31/375—Ascorbic acid, i.e. vitamin C; Salts thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005—Wall or coating material
    • A61K9/5021—Organic macromolecular compounds
    • A61K9/5031—Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poly(lactide-co-glycolide)
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D307/62—Three oxygen atoms, e.g. ascorbic acid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/06—Preparatory processes

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Fodder In General (AREA)
  • Paints Or Removers (AREA)
GB2974268A 1967-06-30 1968-06-21 The Stabilization of Ascorbic Acid and of Derivatives thereof Expired GB1161289A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH935967A CH509302A (de) 1967-06-30 1967-06-30 Verfahren zur Bildung eines Schutzüberzuges auf einzelnen Teilchen von Ascorbinsäure bzw. Isoascorbinsäure

Publications (1)

Publication Number Publication Date
GB1161289A true GB1161289A (en) 1969-08-13

Family

ID=4351152

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2974268A Expired GB1161289A (en) 1967-06-30 1968-06-21 The Stabilization of Ascorbic Acid and of Derivatives thereof

Country Status (11)

Country Link
AT (1) AT279036B (xx)
BE (1) BE717214A (xx)
CH (1) CH509302A (xx)
DE (2) DE1793234B1 (xx)
DK (1) DK120503B (xx)
ES (1) ES355628A1 (xx)
FR (1) FR1600826A (xx)
GB (1) GB1161289A (xx)
IT (1) IT954021B (xx)
NL (1) NL150792B (xx)
SE (1) SE354185B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000103A1 (en) * 1996-06-28 1998-01-08 Unilever Plc Vitamin c delivery system
US5853741A (en) * 1996-06-28 1998-12-29 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Vitamin C delivery system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6087393A (en) * 1999-06-10 2000-07-11 Igen, Inc. Stabilized vitamin C formulations
FR3088345B1 (fr) 2018-11-08 2023-09-29 Max Sardou Procede de fabrication de fibres termostable a haute temperature
FR3105735B1 (fr) 2019-12-26 2023-07-07 Oreal Composition comprenant de l’acide ascorbique
FR3117847B1 (fr) 2020-12-18 2023-11-24 Oreal Composition comprenant des gélifiants aqueux, des tensioactifs et de l’acide ascorbique
FR3117803B1 (fr) 2020-12-18 2022-12-09 Oreal Composition comprenant des gélifiants aqueux, un tensioactif et de l’acide ascorbique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051848B (de) * 1956-10-20 1959-03-05 Merck Ag E Verfahren zur Erhoehung der Bestaendigkeit von fester Ascorbinsaeure
NL296020A (xx) * 1962-08-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998000103A1 (en) * 1996-06-28 1998-01-08 Unilever Plc Vitamin c delivery system
US5853741A (en) * 1996-06-28 1998-12-29 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Vitamin C delivery system

Also Published As

Publication number Publication date
AT279036B (de) 1970-02-25
DK120503B (da) 1971-06-07
IT954021B (it) 1973-08-30
NL150792B (nl) 1976-09-15
DE1793234B1 (de) 1972-05-25
ES355628A1 (es) 1969-12-16
BE717214A (xx) 1968-12-27
SE354185B (xx) 1973-03-05
FR1600826A (en) 1970-08-03
NL6808139A (xx) 1968-12-31
CH509302A (de) 1971-06-30
DE1300555B (de) 1969-08-07

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Legal Events

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