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NL150792B - PROCESS FOR STABILIZING ASCORBIC ACID AND ITS DERIVATIVES BY APPLYING A COATING LAYER USING AN ORGANIC SOLVENT. - Google Patents

PROCESS FOR STABILIZING ASCORBIC ACID AND ITS DERIVATIVES BY APPLYING A COATING LAYER USING AN ORGANIC SOLVENT.

Info

Publication number
NL150792B
NL150792B NL6808139A NL6808139A NL150792B NL 150792 B NL150792 B NL 150792B NL 6808139 A NL6808139 A NL 6808139A NL 6808139 A NL6808139 A NL 6808139A NL 150792 B NL150792 B NL 150792B
Authority
NL
Netherlands
Prior art keywords
derivatives
applying
organic solvent
coating layer
ascorbic acid
Prior art date
Application number
NL6808139A
Other languages
Dutch (nl)
Other versions
NL6808139A (en
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of NL6808139A publication Critical patent/NL6808139A/xx
Publication of NL150792B publication Critical patent/NL150792B/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/335Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
    • A61K31/365Lactones
    • A61K31/375Ascorbic acid, i.e. vitamin C; Salts thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules 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
    • A61K9/5005Wall or coating material
    • A61K9/5021Organic macromolecular compounds
    • A61K9/5031Organic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poly(lactide-co-glycolide)
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic 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
    • C07D307/56Heterocyclic 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
    • C07D307/62Three oxygen atoms, e.g. ascorbic acid
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04Polysiloxanes
    • C08G77/06Preparatory 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)
NL6808139A 1967-06-30 1968-06-10 PROCESS FOR STABILIZING ASCORBIC ACID AND ITS DERIVATIVES BY APPLYING A COATING LAYER USING AN ORGANIC SOLVENT. NL150792B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH935967A CH509302A (en) 1967-06-30 1967-06-30 Process for the formation of a protective coating on individual particles of ascorbic acid or isoascorbic acid

Publications (2)

Publication Number Publication Date
NL6808139A NL6808139A (en) 1968-12-31
NL150792B true NL150792B (en) 1976-09-15

Family

ID=4351152

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6808139A NL150792B (en) 1967-06-30 1968-06-10 PROCESS FOR STABILIZING ASCORBIC ACID AND ITS DERIVATIVES BY APPLYING A COATING LAYER USING AN ORGANIC SOLVENT.

Country Status (11)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA971943B (en) * 1996-06-28 1998-09-07 Unilever Plc Vitamin C delivery system
US5750123A (en) * 1996-06-28 1998-05-12 Chesebrough-Pond's Co., Division Of Conopco, Inc. Vitamin C delivery system
US6087393A (en) * 1999-06-10 2000-07-11 Igen, Inc. Stabilized vitamin C formulations
FR3088345B1 (en) 2018-11-08 2023-09-29 Max Sardou METHOD FOR MANUFACTURING HIGH TEMPERATURE TERMOSTABLE FIBERS
FR3105735B1 (en) 2019-12-26 2023-07-07 Oreal Composition comprising ascorbic acid
FR3117847B1 (en) 2020-12-18 2023-11-24 Oreal Composition comprising aqueous gelling agents, surfactants and ascorbic acid
FR3117803B1 (en) 2020-12-18 2022-12-09 Oreal Composition comprising aqueous gelling agents, surfactant and ascorbic acid

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051848B (en) * 1956-10-20 1959-03-05 Merck Ag E Process to increase the stability of solid ascorbic acid
NL296020A (en) * 1962-08-16

Also Published As

Publication number Publication date
AT279036B (en) 1970-02-25
DK120503B (en) 1971-06-07
IT954021B (en) 1973-08-30
DE1793234B1 (en) 1972-05-25
ES355628A1 (en) 1969-12-16
GB1161289A (en) 1969-08-13
BE717214A (en) 1968-12-27
SE354185B (en) 1973-03-05
FR1600826A (en) 1970-08-03
NL6808139A (en) 1968-12-31
CH509302A (en) 1971-06-30
DE1300555B (en) 1969-08-07

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Legal Events

Date Code Title Description
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: HOFFMANN

V4 Lapsed because of reaching the maxim lifetime of a patent