FI82475B - Saett att framstaella smao, sfaeriska polymerpartiklar. - Google Patents

Saett att framstaella smao, sfaeriska polymerpartiklar. Download PDF

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Publication number
FI82475B
FI82475B FI862925A FI862925A FI82475B FI 82475 B FI82475 B FI 82475B FI 862925 A FI862925 A FI 862925A FI 862925 A FI862925 A FI 862925A FI 82475 B FI82475 B FI 82475B
Authority
FI
Finland
Prior art keywords
phase
droplets
water
polymer
particles
Prior art date
Application number
FI862925A
Other languages
English (en)
Finnish (fi)
Other versions
FI862925A (fi
FI82475C (sv
FI862925A0 (fi
Inventor
Aoke Rikard Lindahl
Bo Magnus Ekman
Original Assignee
Aoke Rikard Lindahl
Bo Magnus Ekman
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 Aoke Rikard Lindahl, Bo Magnus Ekman filed Critical Aoke Rikard Lindahl
Publication of FI862925A0 publication Critical patent/FI862925A0/fi
Publication of FI862925A publication Critical patent/FI862925A/fi
Application granted granted Critical
Publication of FI82475B publication Critical patent/FI82475B/fi
Publication of FI82475C publication Critical patent/FI82475C/sv

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Classifications

    • 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
    • A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • A61K9/1682—Processes
    • A61K9/1694—Processes resulting in granules or microspheres of the matrix type containing more than 5% of excipient
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/14—Powdering or granulating by precipitation from solutions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/16—Powdering or granulating by coagulating dispersions

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Medicinal Preparation (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Peptides Or Proteins (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Claims (10)

1. Sätt att framställa smä, sfäriska polymerpartiklar ur system omfattande tvä vätskefaser, varvid den ena fasen innehällande en eller flera lösta substanser dispergeras i form av smä droppar i den andra fasen tili bildning av en emulsion, varefter dropparna bringas att övergä till fast form, kannet e :c k n a t av att man som vätskefaser använder tvä med varandra ej blandbara vattenhaltiga faser.
2. Sätt enligt krav 1, kännetecknat av att man som lost substans i nämnda ena fas använder en sädan med mättlig löslighet i vatten och bringar dropparna att övergä till fast form genom avlägsnande av vatten frän dessa.
3. Sätt enligt krav 1, kännetecknat av att man som lost substans i nämnda ena fas använder metyl-cellulosa eller ett eller flera proteiner och ästadkommer Överföringen av dropparna till fast form genom uppvärmning.
4. Sätt enligt krav 1, kännetecknat av att man som lost substans använder en polymer, vars löslighet i vatten är starkt temperaturberoende och ästadkommer överföringen av dropparna till fast form genom kylning.
5. Sätt enligt krav 1, kännetecknat av att man som löst substans använder en polymer uppvisande hydroxyl- och/eller aminogrupper eller grupper innehällande strukturen CH2 = CH- och ästadkommer överföringen av dropparna till fast form genom en förnätningsreaktion.
6. Sätt enligt krav 1, kännetecknat av att man som löst substans använder en polymer, vars löslighet är starkt pH-beroende, och ästadkommer överföringen av dropparna till fast form genom en förändring av pH-värdet för den dispergerade fasen.
7. Sätt enligt krav 1, kännetecknad av 0 att man som löst substans använder en polymer, som bildar ett svärlösligt sait med nägon, företrädesvis icke-toxisk, motion och ästadkommer överföringen av dropparna till fast form genom tillförsel av en sädan motjon. 2i 82475
8. Sätt enligt krav 1, kännetecknat av att man som lost substans använder ätminstone en substans, vilken utgör en komponent i ett system av minst tvä med varandra till bildning av ett i vattenhaltigt medium olösligt konjugat eller komplex reagerande substanser och att man Sstadkommer överföringen av dropparna till fast form med hjälp av övriga i nämnda system ing&ende komponenter.
9. Sätt enligt krav 1, kännetecknat av att man Sstadkommer överföringen av dropparna till fast form genom avspjälkning av hydrofila substituenter och/eller införande av hydrofoba substituenter i den lösta substansen.
10. Sätt enligt nägot av föregSende patentkrav, k ä n-netecknat av att en eller flera vid dropparnas överföring till fast form inerta, företrädesvis makromoleky-iära, substanser ingär som lösta substanser i den dispergera-de fasen och inneslutes eller insnärjes i partiklarna vid dessas bi1dning &Ίler att hela celler, cellorgan eller fasta partiklar eller smä oljedroppar är dispergerade i den disper-gerade. fasen och inkapslas i partiklarna vid dessas bildning.
FI862925A 1985-07-12 1986-07-11 Sätt att framställa små, sfäriska polymerpartiklar FI82475C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8503459 1985-07-12
SE8503459A SE459005B (sv) 1985-07-12 1985-07-12 Saett att framstaella sfaeriska polymerpartiklar

Publications (4)

Publication Number Publication Date
FI862925A0 FI862925A0 (fi) 1986-07-11
FI862925A FI862925A (fi) 1987-01-13
FI82475B true FI82475B (fi) 1990-11-30
FI82475C FI82475C (sv) 1991-03-11

Family

ID=20360901

Family Applications (1)

Application Number Title Priority Date Filing Date
FI862925A FI82475C (sv) 1985-07-12 1986-07-11 Sätt att framställa små, sfäriska polymerpartiklar

Country Status (14)

Country Link
US (1) US4822535A (sv)
EP (1) EP0213303B1 (sv)
JP (1) JPS6264863A (sv)
AT (1) ATE66947T1 (sv)
AU (1) AU582865B2 (sv)
CA (1) CA1278227C (sv)
DE (1) DE3681230D1 (sv)
DK (1) DK168575B1 (sv)
FI (1) FI82475C (sv)
IE (1) IE58857B1 (sv)
IL (1) IL79292A (sv)
NO (1) NO165596C (sv)
SE (1) SE459005B (sv)
ZA (1) ZA865119B (sv)

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ZA865119B (en) 1987-03-25
SE8503459D0 (sv) 1985-07-12
DK168575B1 (da) 1994-04-25
EP0213303A2 (en) 1987-03-11
SE459005B (sv) 1989-05-29
ATE66947T1 (de) 1991-09-15
SE8503459L (sv) 1987-01-13
AU582865B2 (en) 1989-04-13
DK330186A (da) 1987-01-13
FI862925A (fi) 1987-01-13
AU5922486A (en) 1987-01-15
NO862830D0 (no) 1986-07-11
DE3681230D1 (de) 1991-10-10
IL79292A0 (en) 1986-09-30
IL79292A (en) 1991-06-10
CA1278227C (en) 1990-12-27
NO165596B (no) 1990-11-26
IE58857B1 (en) 1993-11-17
DK330186D0 (da) 1986-07-11
FI82475C (sv) 1991-03-11
EP0213303A3 (en) 1988-07-20
EP0213303B1 (en) 1991-09-04
NO862830L (no) 1987-01-13
IE861728L (en) 1987-01-12
US4822535A (en) 1989-04-18
JPS6264863A (ja) 1987-03-23
JPH0564974B2 (sv) 1993-09-16
FI862925A0 (fi) 1986-07-11
NO165596C (no) 1991-03-06

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