CH509302A - Process for the formation of a protective coating on individual particles of ascorbic acid or isoascorbic acid - Google Patents

Process for the formation of a protective coating on individual particles of ascorbic acid or isoascorbic acid

Info

Publication number
CH509302A
CH509302A CH935967A CH935967A CH509302A CH 509302 A CH509302 A CH 509302A CH 935967 A CH935967 A CH 935967A CH 935967 A CH935967 A CH 935967A CH 509302 A CH509302 A CH 509302A
Authority
CH
Switzerland
Prior art keywords
acid
formation
protective coating
individual particles
ascorbic acid
Prior art date
Application number
CH935967A
Other languages
German (de)
Inventor
Walter Dr Haas
Hans-Guenther Dr Zeller
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
Priority to ES355628A priority Critical patent/ES355628A1/en
Application filed by Hoffmann La Roche filed Critical Hoffmann La Roche
Priority to CH935967A priority patent/CH509302A/en
Priority to DE19671793234 priority patent/DE1793234B1/en
Priority to DE1967H0064432 priority patent/DE1300555B/en
Priority to AT476168A priority patent/AT279036B/en
Priority to NL6808139A priority patent/NL150792B/en
Priority to DK279268A priority patent/DK120503B/en
Priority to GB2974268A priority patent/GB1161289A/en
Priority to BE717214D priority patent/BE717214A/xx
Priority to SE896668A priority patent/SE354185B/xx
Priority to IT1843268A priority patent/IT954021B/en
Priority to FR1600826D priority patent/FR1600826A/en
Publication of CH509302A publication Critical patent/CH509302A/en
Priority to US375559A priority patent/US3873713A/en

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)
  • Pharmacology & Pharmacy (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Fodder In General (AREA)
  • Paints Or Removers (AREA)
CH935967A 1967-06-30 1967-06-30 Process for the formation of a protective coating on individual particles of ascorbic acid or isoascorbic acid CH509302A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
ES355628A ES355628A1 (en) 1967-06-30 1967-06-28 The Stabilization of Ascorbic Acid and of Derivatives thereof
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
DE19671793234 DE1793234B1 (en) 1967-06-30 1967-11-11 Process for the production of ascorbic acid or its derivatives stabilized against chemical and physical influences
DE1967H0064432 DE1300555B (en) 1967-06-30 1967-11-11 Stabilized ascorbic acid and its derivatives
AT476168A AT279036B (en) 1967-06-30 1968-05-17 Process for the stabilization of ascorbic acid and its derivatives
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.
DK279268A DK120503B (en) 1967-06-30 1968-06-14 Process for stabilizing ascorbic acid and its derivatives.
GB2974268A GB1161289A (en) 1967-06-30 1968-06-21 The Stabilization of Ascorbic Acid and of Derivatives thereof
BE717214D BE717214A (en) 1967-06-30 1968-06-27
SE896668A SE354185B (en) 1967-06-30 1968-06-28
IT1843268A IT954021B (en) 1967-06-30 1968-06-28 PROCEDURE FOR THE STABILIZATION OF ASCORBIC ACID AND ITS DERIVATIVES
FR1600826D FR1600826A (en) 1967-06-30 1968-07-01 Stabilisation of ascorbic acid with a coating of org
US375559A US3873713A (en) 1967-06-30 1973-07-02 Stabilized particulate vitamin c composition

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 (1)

Publication Number Publication Date
CH509302A true CH509302A (en) 1971-06-30

Family

ID=4351152

Family Applications (1)

Application Number Title Priority Date Filing Date
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

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
US5853741A (en) * 1996-06-28 1998-12-29 Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. Vitamin C delivery system
ZA971943B (en) * 1996-06-28 1998-09-07 Unilever Plc 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
DK120503B (en) 1971-06-07
IT954021B (en) 1973-08-30
ES355628A1 (en) 1969-12-16
NL150792B (en) 1976-09-15
DE1300555B (en) 1969-08-07
FR1600826A (en) 1970-08-03
AT279036B (en) 1970-02-25
NL6808139A (en) 1968-12-31
DE1793234B1 (en) 1972-05-25
BE717214A (en) 1968-12-27
SE354185B (en) 1973-03-05
GB1161289A (en) 1969-08-13

Similar Documents

Publication Publication Date Title
CH479139A (en) Method for the follow-up control of magnetic heads
CH505756A (en) Process for forming a metal coating on carbon filaments
CH552682A (en) PROCESS FOR THE PRODUCTION OF DIFFUSION PROTECTIVE COATINGS ON OBJECTS FROM COBALT-BASED ALLOYS.
AT338212B (en) PROCESS FOR THE EXTRACTION OF ZINC FROM ZINC FERRITE CONCENTRATE
AT284458B (en) Process for the production of crystalline polyadducts based on diepoxides
CH500512A (en) Process for the production of printing forms
AT281285B (en) Process for the preparation of α-6 deoxytetracyclines
CH509302A (en) Process for the formation of a protective coating on individual particles of ascorbic acid or isoascorbic acid
CH503096A (en) Process for the production of polyurethane lacquer coatings
CH518315A (en) Process for the production of ascorbic acid 3-phosphate
CH512627A (en) Process for the finishing of textiles
CH484293A (en) Process for improving the durability of protective chromium coatings on metals
DE1638588B2 (en) METHOD OF FORMING THE CONTACT TRACK OF A CONTROLLER AND CONTROLLER MANUFACTURED BY THE METHOD
AT280478B (en) Process for coating tablets
CH525173A (en) Process for the preparation of 3-methylbut-2-en-1-ol or 3-methylbut-2-en-1-ylacetate
AT282839B (en) Process for the separation of a mixture of the diastereoisomers of zearalanol
CH507324A (en) Process for the production of polyesters or copolyesters
AT293392B (en) Process for the preparation of benzodiazepines or salts thereof
AT282278B (en) Process for the production of a coating on metal surfaces
CH546257A (en) PROCESS FOR PREPARING 6-AMINOPENICILLANIC ACID.
AT278369B (en) Process for the post-condensation of polycondensates
AT287192B (en) Process for the purification of 6-D - (-) - α-aminophenylacetamido-penicillanic acid
DD64275A5 (en) PROCESS FOR FLYING SYLVIN FROM CALI RAW SALTS
CH469445A (en) Process for removing the peel from plant products
AT281792B (en) Process for the purification of phenol produced by the cumene process

Legal Events

Date Code Title Description
PL Patent ceased