SE7611999L - PROCEDURE FOR MAKING A MICROCAPLE MATERIAL - Google Patents

PROCEDURE FOR MAKING A MICROCAPLE MATERIAL

Info

Publication number
SE7611999L
SE7611999L SE7611999A SE7611999A SE7611999L SE 7611999 L SE7611999 L SE 7611999L SE 7611999 A SE7611999 A SE 7611999A SE 7611999 A SE7611999 A SE 7611999A SE 7611999 L SE7611999 L SE 7611999L
Authority
SE
Sweden
Prior art keywords
polyurea
water
capsule walls
porosity
walls
Prior art date
Application number
SE7611999A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
H B Scher
Original Assignee
Stauffer Chemical Co
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 Stauffer Chemical Co filed Critical Stauffer Chemical Co
Publication of SE7611999L publication Critical patent/SE7611999L/en

Links

Classifications

    • 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
    • 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)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Polyurea microcapsules having individual capsule walls are produced. The capsule walls are obtained by interfacial polymerisation. Firstly, an organic phase is formed, which contains water-immiscible material to be encapsulated, a solvent which is capable of excluding water from the organic material and/or of controlling the porosity of the polyurea wall in accordance with the solubility parameter for the polyurea microcapsule wall, and a polyisocyanate. This organic phase is dispersed in an aqueous phase which, in addition to water, contains a surfactant and a protective colloid. The individual polymer walls of the capsules are then formed. This process allows the quality, in particular the porosity and thus the permeability of the capsule walls to be controlled.
SE7611999A 1975-10-30 1976-10-28 PROCEDURE FOR MAKING A MICROCAPLE MATERIAL SE7611999L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US62740075A 1975-10-30 1975-10-30

Publications (1)

Publication Number Publication Date
SE7611999L true SE7611999L (en) 1977-05-01

Family

ID=24514487

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7611999A SE7611999L (en) 1975-10-30 1976-10-28 PROCEDURE FOR MAKING A MICROCAPLE MATERIAL

Country Status (31)

Country Link
JP (1) JPS5254687A (en)
AR (1) AR210909A1 (en)
AT (1) AT353750B (en)
AU (1) AU510355B2 (en)
BE (1) BE847878A (en)
BR (1) BR7607188A (en)
CA (1) CA1094402A (en)
CH (1) CH628525A5 (en)
CS (1) CS197280B2 (en)
DD (1) DD129032A5 (en)
DE (1) DE2648562A1 (en)
DK (1) DK487976A (en)
ES (1) ES452836A1 (en)
FR (1) FR2329340A1 (en)
GB (1) GB1566297A (en)
GR (1) GR68264B (en)
HU (1) HU173923B (en)
IN (1) IN145979B (en)
IT (1) IT1066331B (en)
MX (1) MX146759A (en)
NL (1) NL7612022A (en)
NO (1) NO148703C (en)
NZ (1) NZ182472A (en)
PH (1) PH14926A (en)
PL (1) PL118818B1 (en)
PT (1) PT65761B (en)
RO (1) RO69910A (en)
SE (1) SE7611999L (en)
SU (1) SU707510A3 (en)
YU (1) YU262876A (en)
ZA (1) ZA766492B (en)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039117A1 (en) * 1980-10-16 1982-05-13 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING MICROCAPSULES
DE3346601C2 (en) * 1983-12-23 1986-06-12 Feldmühle AG, 4000 Düsseldorf Microcapsules, process for their production and their use in pressure-sensitive carbonless copying papers
AR240875A1 (en) * 1984-01-09 1991-03-27 Stauffer Chemical Co PROCEDURE FOR PRODUCING MULTIPLE SIZE POLYUREA CAPSULES CONTAINING A WATER IMMISCIBLE MATERIAL INSIDE IT AND THE RESULTING CAPSULES
RS56792B1 (en) * 2006-03-30 2018-04-30 Fmc Corp Acetylene carbamide derivatives-polyurea polymers and microcapsules and formulations thereof for controlled release
BE1019834A4 (en) 2011-02-22 2013-01-08 Geosea N V DEVICE FOR MANUFACTURING A FOUNDATION FOR A HIGH-FIXED MASS, RELATED METHOD AND COMPOSITION OF THE DEVICE AND A LIFTING PLATFORM.
RU2488395C1 (en) * 2012-01-10 2013-07-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗ ГУ) Method for preparing microcapsules of rivanol in water-soluble polymers
RU2496483C1 (en) * 2012-03-20 2013-10-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗ ГУ) Method for preparing microcapsules
RU2482849C1 (en) * 2012-04-09 2013-05-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗ ГУ) Method for preparing pharmaceutical microcapsules of cephalosporins
RU2488437C1 (en) * 2012-04-19 2013-07-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Курская государственная сельскохозяйственная академия имени профессора И.И. Иванова Министерства сельского хозяйства Российской Федерации Method of producing microcapsules of pesticides by nonsolvent precipitation method
RU2500403C1 (en) * 2012-05-03 2013-12-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Курская государственная сельскохозяйственная академия имени профессора И.И. Иванова Министерства сельского хозяйства Российской Федерации Physicochemical method for preparing cephalosporin microcapsules
RU2491939C1 (en) * 2012-05-10 2013-09-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Курская государственная сельскохозяйственная академия имени профессора И.И. Иванова Министерства сельского хозяйства Российской Федерации Method for preparing drug microcapsules of cephalosporin in konjac gum in chloroform
RU2522267C2 (en) * 2012-08-28 2014-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Курская государственная сельскохозяйственная академия имени профессора И.И. Иванова Министерства сельского хозяйства Российской Федерации Fenbendazole encapsulation method
RU2522229C1 (en) * 2013-03-26 2014-07-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Юго-Западный государственный университет" (ЮЗ ГУ) Fenbendazole encapsulation method
RU2540479C2 (en) * 2013-05-24 2015-02-10 Александр Александрович Кролевец Method for fenbendazole encapsulation
CN103331133B (en) * 2013-06-07 2015-06-24 深圳大学 Epoxy microcapsule with polyurea as wall material and preparation method thereof
RU2545742C2 (en) * 2013-07-23 2015-04-10 Александр Александрович Кролевец Lactobifadol encapsulation method
RU2556652C1 (en) * 2013-12-24 2015-07-10 Александр Александрович Кролевец Method for common jujube encapsulation
RU2555782C1 (en) * 2014-03-03 2015-07-10 Александр Александрович Кролевец Method of producing glucosamine sulphate nanocapsules in konjac gum in hexane
RU2558084C1 (en) * 2014-03-18 2015-07-27 Александр Александрович Кролевец Method of producing aspirin nanocapsules in carrageenan
RU2556202C1 (en) * 2014-03-18 2015-07-10 Александр Александрович Кролевец Method of obtaining l-arginine nanocapsules in sodium alginate
RU2555055C1 (en) * 2014-03-18 2015-07-10 Александр Александрович Кролевец Method of obtaining nanocapsules of glucoamine sulphate in xanthan gum
RU2563118C1 (en) * 2014-03-18 2015-09-20 Александр Александрович Кролевец Method of producing of microcapsules of aminoglycoside antibiotics in sodium alginate
RU2557941C1 (en) * 2014-03-20 2015-07-27 Александр Александрович Кролевец Method of production of nanocapsules of aspirin in sodium alginate
RU2557900C1 (en) * 2014-03-25 2015-07-27 Александр Александрович Кролевец Method of production of nanocapsules of vitamins
RU2557903C1 (en) * 2014-03-26 2015-07-27 Александр Александрович Кролевец Method of production of nanocapsules of l-arginine in pectin
RU2565408C1 (en) * 2014-04-02 2015-10-20 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Белгородский государственный национальный исследовательский университет" Method of obtaining microcapsules of amino acids in sodium alginate
RU2554759C1 (en) * 2014-04-07 2015-06-27 Александр Александрович Кролевец Method of obtaining potassium losartan nanocapsules
RU2558855C1 (en) * 2014-04-15 2015-08-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Белгородский государственный национальный исследовательский университет" Method of production of microcapsules of potassium losartan in sodium alginate
RU2558856C1 (en) * 2014-04-15 2015-08-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Белгородский государственный национальный исследовательский университет" Method of production of microcapsules of amino acids in konjac gum
RU2568832C1 (en) * 2014-07-01 2015-11-20 Александр Александрович Кролевец Method of producing nanocapsules of metal salts
RU2569735C1 (en) * 2014-07-17 2015-11-27 Александр Александрович Кролевец Method for obtaining nanocapsules of metal salts in konjac gum
RU2569736C1 (en) * 2014-07-28 2015-11-27 Александр Александрович Кролевец Method of production of nanocapsules of adenine in sodium alginate
RU2573502C1 (en) * 2014-09-18 2016-01-20 Александр Александрович Кролевец Method of production of nanocapsules of resveratrol in sodium alginate
RU2619329C2 (en) * 2014-10-06 2017-05-15 Александр Александрович Кролевец Method of producing aspirin nanocapsules in sodium alginate
RU2578411C1 (en) * 2015-03-11 2016-03-27 Александр Александрович Кролевец Method of producing nanocapsules of riboflavin
RU2590666C1 (en) * 2015-04-14 2016-07-10 Александр Александрович Кролевец Method of producing nano capsules of medicinal plants having immunostimulating effect
RU2595834C1 (en) * 2015-04-14 2016-08-27 Александр Александрович Кролевец Method of producing nanocapsules of green tea extract
RU2592202C1 (en) * 2015-05-29 2016-07-20 Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") Method of producing nanocapsules of creatine
RU2590693C1 (en) * 2015-06-02 2016-07-10 Александр Александрович Кролевец Method of producing nano capsules of adaptogens in pectin
RU2586612C1 (en) * 2015-06-03 2016-06-10 Александр Александрович Кролевец Method of producing nanocapsules of adaptogens in xanthane gum
RU2599841C1 (en) * 2015-08-24 2016-10-20 Александр Александрович Кролевец Method of aminoglycoside antibiotics in sodium alginate nano-capsules producing

Also Published As

Publication number Publication date
DD129032A5 (en) 1977-12-21
NO148703C (en) 1983-11-30
PL118818B1 (en) 1981-10-31
PT65761A (en) 1976-11-01
DK487976A (en) 1977-05-01
NZ182472A (en) 1978-06-20
FR2329340B1 (en) 1980-04-04
NO148703B (en) 1983-08-22
RO69910A (en) 1982-05-10
YU262876A (en) 1983-01-21
GB1566297A (en) 1980-04-30
BE847878A (en) 1977-04-29
ZA766492B (en) 1977-10-26
CH628525A5 (en) 1982-03-15
AR210909A1 (en) 1977-09-30
AT353750B (en) 1979-11-26
NO763696L (en) 1977-05-03
AU1914676A (en) 1978-05-04
CS197280B2 (en) 1980-04-30
HU173923B (en) 1979-09-28
IN145979B (en) 1979-01-27
ES452836A1 (en) 1977-10-16
IT1066331B (en) 1985-03-04
GR68264B (en) 1981-11-19
AU510355B2 (en) 1980-06-19
PH14926A (en) 1982-01-29
SU707510A3 (en) 1979-12-30
FR2329340A1 (en) 1977-05-27
JPS5254687A (en) 1977-05-04
BR7607188A (en) 1977-09-13
CA1094402A (en) 1981-01-27
ATA801876A (en) 1979-05-15
NL7612022A (en) 1977-05-03
DE2648562A1 (en) 1977-05-12
MX146759A (en) 1982-08-11
PT65761B (en) 1978-04-27

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