CH648216A5 - Process for preparing microcapsules - Google Patents

Process for preparing microcapsules Download PDF

Info

Publication number
CH648216A5
CH648216A5 CH7173/79A CH717379A CH648216A5 CH 648216 A5 CH648216 A5 CH 648216A5 CH 7173/79 A CH7173/79 A CH 7173/79A CH 717379 A CH717379 A CH 717379A CH 648216 A5 CH648216 A5 CH 648216A5
Authority
CH
Switzerland
Prior art keywords
monomer
phase
continuous phase
stage
affinity
Prior art date
Application number
CH7173/79A
Other languages
German (de)
English (en)
Inventor
Franklin Lim
Richard D Moss
Original Assignee
Damon Corp
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 claimed from US06/030,847 external-priority patent/US4251387A/en
Application filed by Damon Corp filed Critical Damon Corp
Publication of CH648216A5 publication Critical patent/CH648216A5/de

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/536—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
    • G01N33/537—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody
    • G01N33/5375—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody by changing the physical or chemical properties of the medium or immunochemicals, e.g. temperature, density, pH, partitioning
    • 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)
    • 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
    • A61K9/5089—Processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02—Making microcapsules or microballoons
    • B01J13/06—Making microcapsules or microballoons by phase separation
    • B01J13/14—Polymerisation; cross-linking
    • B01J13/16—Interfacial polymerisation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/536—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
    • G01N33/537—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase with separation of immune complex from unbound antigen or antibody
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/74—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving hormones or other non-cytokine intercellular protein regulatory factors such as growth factors, including receptors to hormones and growth factors

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Biochemistry (AREA)
  • Food Science & Technology (AREA)
  • Microbiology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Cell Biology (AREA)
  • Biotechnology (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Epidemiology (AREA)
  • Organic Chemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Endocrinology (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
CH7173/79A 1978-08-04 1979-08-03 Process for preparing microcapsules CH648216A5 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93117778A 1978-08-04 1978-08-04
US06/030,847 US4251387A (en) 1979-04-17 1979-04-17 Process for preparing semipermeable microcapsules

Publications (1)

Publication Number Publication Date
CH648216A5 true CH648216A5 (en) 1985-03-15

Family

ID=26706527

Family Applications (1)

Application Number Title Priority Date Filing Date
CH7173/79A CH648216A5 (en) 1978-08-04 1979-08-03 Process for preparing microcapsules

Country Status (8)

Country Link
CA (1) CA1144010A (no)
CH (1) CH648216A5 (no)
DE (1) DE2931651A1 (no)
DK (1) DK151212C (no)
FR (1) FR2432337A2 (no)
IT (1) IT1118818B (no)
NO (1) NO148320C (no)
SE (1) SE434470B (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003097218A1 (en) * 2002-05-16 2003-11-27 Mcmaster University Novel composite tecto-membranes formed by interfacial reaction of crosslinked polymer microspheres with coupling agents

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429827A (en) * 1962-11-23 1969-02-25 Moore Business Forms Inc Method of encapsulation
CH453305A (fr) * 1963-10-21 1968-06-14 Pilot Pen Co Ltd Procédé pour encapsuler de fines gouttelettes de liquides dispersées
US3577515A (en) * 1963-12-13 1971-05-04 Pennwalt Corp Encapsulation by interfacial polycondensation
NO147883C (no) * 1976-10-01 1983-06-29 Damon Corp Fremgangsmaate for innkapsling av labile biologiske materialer

Also Published As

Publication number Publication date
NO148320B (no) 1983-06-13
FR2432337A2 (fr) 1980-02-29
NO792558L (no) 1980-02-05
SE434470B (sv) 1984-07-30
CA1144010A (en) 1983-04-05
IT7968610A0 (it) 1979-08-03
IT1118818B (it) 1986-03-03
DE2931651A1 (de) 1980-02-21
DK151212C (da) 1988-04-18
NO148320C (no) 1983-09-21
DK151212B (da) 1987-11-16
DK329179A (da) 1980-02-05
FR2432337B2 (no) 1983-02-11
SE7906567L (sv) 1980-02-05

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Legal Events

Date Code Title Description
PUE Assignment

Owner name: DAMON BIOTECH, INC.

PL Patent ceased