BE848427A - Procede d'encapsulation d'une matiere biologique labile - Google Patents

Procede d'encapsulation d'une matiere biologique labile

Info

Publication number
BE848427A
BE848427A BE172434A BE172434A BE848427A BE 848427 A BE848427 A BE 848427A BE 172434 A BE172434 A BE 172434A BE 172434 A BE172434 A BE 172434A BE 848427 A BE848427 A BE 848427A
Authority
BE
Belgium
Prior art keywords
encapsulating
biological material
labile biological
labile
biological
Prior art date
Application number
BE172434A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE848427A publication Critical patent/BE848427A/xx

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane manufacture
    • B01D67/0006Organic membrane manufacture by chemical reactions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/41Porphyrin- or corrin-ring-containing peptides
    • A61K38/42Haemoglobins; Myoglobins
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/43Enzymes; Proenzymes; Derivatives thereof
    • A61K38/44Oxidoreductases (1)
    • A61K38/443Oxidoreductases (1) acting on CH-OH groups as donors, e.g. glucose oxidase, lactate dehydrogenase (1.1)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/43Enzymes; Proenzymes; Derivatives thereof
    • A61K38/45Transferases (2)
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/43Enzymes; Proenzymes; Derivatives thereof
    • A61K38/46Hydrolases (3)
    • A61K38/47Hydrolases (3) acting on glycosyl compounds (3.2), e.g. cellulases, lactases
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • A61K38/16Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • A61K38/43Enzymes; Proenzymes; Derivatives thereof
    • A61K38/46Hydrolases (3)
    • A61K38/50Hydrolases (3) acting on carbon-nitrogen bonds, other than peptide bonds (3.5), e.g. asparaginase
    • 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)
    • 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
    • A61K9/5089Processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081After-treatment of organic or inorganic membranes
    • B01D67/0088Physical treatment with compounds, e.g. swelling, coating or impregnation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14Dynamic membranes
    • B01D69/141Heterogeneous membranes, e.g. containing dispersed material; Mixed matrix membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/02Making microcapsules or microballoons
    • B01J13/06Making microcapsules or microballoons by phase separation
    • B01J13/14Polymerisation; cross-linking
    • B01J13/16Interfacial polymerisation
    • 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
    • C08G69/00Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • 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
    • C08G69/00Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/02Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
    • C08G69/26Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
    • C08G69/28Preparatory processes
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N11/00Carrier-bound or immobilised enzymes; Carrier-bound or immobilised microbial cells; Preparation thereof
    • C12N11/02Enzymes or microbial cells immobilised on or in an organic carrier
    • C12N11/04Enzymes or microbial cells immobilised on or in an organic carrier entrapped within the carrier, e.g. gel or hollow fibres
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2989Microcapsule with solid core [includes liposome]

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Medicinal Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Immunology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Zoology (AREA)
  • Polymers & Plastics (AREA)
  • Wood Science & Technology (AREA)
  • Genetics & Genomics (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Inorganic Chemistry (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Medicinal Preparation (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
BE172434A 1975-08-20 1976-11-17 Procede d'encapsulation d'une matiere biologique labile BE848427A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/606,166 US4324683A (en) 1975-08-20 1975-08-20 Encapsulation of labile biological material

Publications (1)

Publication Number Publication Date
BE848427A true BE848427A (fr) 1977-05-17

Family

ID=24426842

Family Applications (1)

Application Number Title Priority Date Filing Date
BE172434A BE848427A (fr) 1975-08-20 1976-11-17 Procede d'encapsulation d'une matiere biologique labile

Country Status (11)

Country Link
US (1) US4324683A (nl)
JP (1) JPS5352616A (nl)
AT (1) AT359977B (nl)
AU (1) AU505888B2 (nl)
BE (1) BE848427A (nl)
CA (1) CA1075179A (nl)
CH (1) CH628823A5 (nl)
DE (1) DE2645730A1 (nl)
LU (1) LU76237A1 (nl)
NL (1) NL7612592A (nl)
SE (1) SE426245B (nl)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
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US4352883A (en) * 1979-03-28 1982-10-05 Damon Corporation Encapsulation of biological material
US4349530A (en) * 1980-12-11 1982-09-14 The Ohio State University Implants, microbeads, microcapsules, preparation thereof and method of administering a biologically-active substance to an animal
NO163060C (no) * 1981-03-13 1990-03-28 Damon Biotech Inc Fremgangsmaate for fremstilling av substanser som dannes av levende celler som produserer interferoner eller antistoffer.
US4798786A (en) * 1982-05-06 1989-01-17 Stolle Research And Development Corporation Living cells encapsulated in crosslinked protein
US4690682A (en) * 1983-04-15 1987-09-01 Damon Biotech, Inc. Sustained release
US4789516A (en) * 1983-04-15 1988-12-06 Damon Biotech, Inc Production of sustained released system
US4803168A (en) * 1983-09-01 1989-02-07 Damon Biotech, Inc. Microencapsulation with polymers
US4518547A (en) * 1983-09-15 1985-05-21 Board Of Regents, The University Of Texas System Microencapsulation process
US4778749A (en) * 1984-06-01 1988-10-18 Karyon Technology, Inc. Tissue culture and production in permeable gels
FR2565102B1 (fr) * 1984-06-05 1987-03-20 Paris Sud Universite Microcapsules biodegradables a base de serumalbumine, leur preparation et leur application a la liberation in situ de medicuments
IE58110B1 (en) * 1984-10-30 1993-07-14 Elan Corp Plc Controlled release powder and process for its preparation
US4622294A (en) * 1985-02-08 1986-11-11 Kung Viola T Liposome immunoassay reagent and method
US4683092A (en) * 1985-07-03 1987-07-28 Damon Biotech, Inc. Capsule loading technique
US4690825A (en) * 1985-10-04 1987-09-01 Advanced Polymer Systems, Inc. Method for delivering an active ingredient by controlled time release utilizing a novel delivery vehicle which can be prepared by a process utilizing the active ingredient as a porogen
US5145675A (en) * 1986-03-31 1992-09-08 Advanced Polymer Systems, Inc. Two step method for preparation of controlled release formulations
US4933185A (en) * 1986-09-24 1990-06-12 Massachusetts Institute Of Technology System for controlled release of biologically active compounds
US5093198A (en) * 1987-06-19 1992-03-03 Temple University Adjuvant-enhanced sustained release composition and method for making
US4797234A (en) * 1987-06-19 1989-01-10 Temple University Production of sustained release composition from salt-form reactants
US5427935A (en) * 1987-07-24 1995-06-27 The Regents Of The University Of Michigan Hybrid membrane bead and process for encapsulating materials in semi-permeable hybrid membranes
US5158881A (en) * 1987-11-17 1992-10-27 Brown University Research Foundation Method and system for encapsulating cells in a tubular extrudate in separate cell compartments
US5283187A (en) * 1987-11-17 1994-02-01 Brown University Research Foundation Cell culture-containing tubular capsule produced by co-extrusion
US5418154A (en) * 1987-11-17 1995-05-23 Brown University Research Foundation Method of preparing elongated seamless capsules containing biological material
US5441878A (en) * 1987-12-08 1995-08-15 Thies Technology, Inc. Preparation of uniform droplets by using gas pressure to force liquid from a syringe and flowing gas to detach droplets
US5079005A (en) * 1988-06-17 1992-01-07 Gupta Kashmiri L Time release protein
US5023080A (en) * 1988-06-17 1991-06-11 Basic Bio Systems, Inc. Time release protein
US5055300A (en) * 1988-06-17 1991-10-08 Basic Bio Systems, Inc. Time release protein
US4963369A (en) * 1989-01-19 1990-10-16 Wm. Wrigley Jr. Co. Gum composition containing dispersed porous beads containing active chewing gum ingredients and method
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US5139787A (en) * 1989-01-19 1992-08-18 Wm. Wrigley Jr. Company Gum composition containing dispersed porous beads containing active chewing gum ingredients and method
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US5126174A (en) * 1989-02-16 1992-06-30 Wm. Wrigley Jr. Company Food packaging improvements
JPH02258052A (ja) * 1989-03-31 1990-10-18 Mita Ind Co Ltd 芯物質の保持性に優れた含水マイクロカプセルの製造方法
FR2645866B1 (fr) * 1989-04-17 1991-07-05 Centre Nat Rech Scient Nouvelles lipopolyamines, leur preparation et leur emploi
US5132117A (en) * 1990-01-11 1992-07-21 Temple University Aqueous core microcapsules and method for their preparation
US5154938A (en) * 1990-12-20 1992-10-13 Wm. Wrigley Jr. Company Gum composition having dispersed porous beads containing plasticizers
US5800829A (en) * 1991-04-25 1998-09-01 Brown University Research Foundation Methods for coextruding immunoisolatory implantable vehicles with a biocompatible jacket and a biocompatible matrix core
DK0585368T3 (da) * 1991-04-25 1998-03-16 Univ Brown Res Found Implanterbart biokompatibelt immunisolatorisk vehikel til afgivelse af udvalgte terapeutiske produkter
JP3252361B2 (ja) * 1991-10-02 2002-02-04 ミルトン・エイチ・リプスキー インビボにおける癌の治療のアッセイ
US5260002A (en) * 1991-12-23 1993-11-09 Vanderbilt University Method and apparatus for producing uniform polymeric spheres
US5429821A (en) * 1992-05-29 1995-07-04 The Regents Of The University Of California Non-fibrogenic high mannuronate alginate coated transplants, processes for their manufacture, and methods for their use
ZA935531B (en) * 1992-07-30 1995-01-30 Unilever Plc High loading water-dispersible UVA and/or UVB light-absorbing co-polymer
US5698413A (en) * 1993-05-05 1997-12-16 The United States Of America As Represented By The Department Of Health And Human Services Method of evaluating chemotherapeutic agents in vivo
US5545483A (en) * 1993-06-01 1996-08-13 Moore Business Forms, Inc. Polyamide microcapsules reacted with isocyanate emulsion
US5651980A (en) * 1994-04-15 1997-07-29 Biohybrid Technologies, Inc. Methods of use of uncoated gel particles
US6020312A (en) * 1994-09-13 2000-02-01 Nce Pharmaceuticals, Inc. Synthetic antibiotics
US5602097A (en) * 1994-09-13 1997-02-11 Ceres Technologies, Inc. Synthetic antibiotics
US5885782A (en) * 1994-09-13 1999-03-23 Nce Pharmaceuticals, Inc. Synthetic antibiotics
US6387399B1 (en) * 1994-12-02 2002-05-14 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Microencapsulated bioactive agents and method of making
US6247995B1 (en) 1996-02-06 2001-06-19 Bruce Bryan Bioluminescent novelty items
US5876995A (en) * 1996-02-06 1999-03-02 Bryan; Bruce Bioluminescent novelty items
US6416960B1 (en) 1996-08-08 2002-07-09 Prolume, Ltd. Detection and visualization of neoplastic tissues and other tissues
DE19634393A1 (de) * 1996-08-26 1998-03-05 Bayer Ag Verfahren zur Herstellung vernetzter Polymerisate
US8137684B2 (en) 1996-10-01 2012-03-20 Abraxis Bioscience, Llc Formulations of pharmacological agents, methods for the preparation thereof and methods for the use thereof
CA2271717A1 (en) 1996-12-12 1998-06-18 Prolume, Ltd. Apparatus and method for detecting and identifying infectious agents
EP1925320A3 (en) 1998-03-27 2008-09-03 Prolume, Ltd. Luciferases, fluorescent proteins, nucleic acids encoding the luciferases and fluorescent proteins and the use thereof in diagnostics
DE69938293T2 (de) 1998-03-27 2009-03-12 Bruce J. Beverly Hills Bryan Luciferase, gfp fluoreszenzproteine, kodierende nukleinsaüre und ihre verwendung in der diagnose
US7109315B2 (en) * 2000-03-15 2006-09-19 Bruce J. Bryan Renilla reniformis fluorescent proteins, nucleic acids encoding the fluorescent proteins and the use thereof in diagnostics, high throughput screening and novelty items
ES2251487T3 (es) * 2000-06-05 2006-05-01 Syngenta Limited Nuevas emulsiones.
US6753083B2 (en) * 2000-11-06 2004-06-22 Ciba Specialty Chemicals Water Treatments Ltd. Particles
NO20021592D0 (no) 2002-04-04 2002-04-04 Fmc Biopolymer As Polysakkaridkapsler og fremgangsmåte ved fremstilling derav
KR100540212B1 (ko) * 2002-04-16 2006-01-16 주식회사 엔지뱅크 계면활성효소, 계면활성효소 합성방법 및 고정화된 효소 제조방법
US20050058689A1 (en) 2003-07-03 2005-03-17 Reactive Surfaces, Ltd. Antifungal paints and coatings
US20040109853A1 (en) 2002-09-09 2004-06-10 Reactive Surfaces, Ltd. Biological active coating components, coatings, and coated surfaces
US20060286006A1 (en) * 2005-06-21 2006-12-21 Mcdaniel C S Method and apparatus for the treatment of fluid waste streams
AT502539B1 (de) * 2005-10-05 2008-12-15 Lenzing Plastics Gmbh Verbundfolie
EP1991196B1 (en) * 2006-03-03 2016-10-12 Fmc Corporation Method and apparatus for the preparation of capsules.
CN100432120C (zh) * 2006-05-15 2008-11-12 上海市合成树脂研究所 一种芳酰胺共聚物的制备方法
US8388904B1 (en) 2008-12-22 2013-03-05 Reactive Surfaces, Ltd., Llp Equipment decontamination system and method
JP6331264B2 (ja) * 2013-05-21 2018-05-30 日立化成株式会社 コア−シェル型カプセル及びその製造方法
EP2883606B1 (en) * 2013-12-11 2020-04-29 Leibniz-Institut für Polymerforschung Dresden e.V. Polymer capsules comprising catalysts
CN104479128B (zh) * 2014-12-17 2016-07-13 清华大学 一种利用乳液法由对苯二胺和对苯二酰氯缩聚制备对位芳纶的方法
US10377940B2 (en) 2016-09-20 2019-08-13 Saudi Arabian Oil Company Cement having cross-linked polymers
US10947437B2 (en) 2016-09-20 2021-03-16 Saudi Arabian Oil Company Chemical composition of superabsorbent vesicles, method for mortar cement admixture, and applications of the same
US10947438B2 (en) 2016-09-20 2021-03-16 Saudi Arabian Oil Company Method for monitoring cement using polymer-based capsules
US10519359B2 (en) 2018-01-02 2019-12-31 Saudi Arabian Oil Company Capsule design for the capture of reagents
CA3087375A1 (en) 2018-01-02 2019-07-11 Saudi Arabian Oil Company Material design for the encapsulation of additives and release
EP3735450A1 (en) * 2018-01-02 2020-11-11 Saudi Arabian Oil Company Composition of encapsulated chemical additives and methods for preparation of the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA873815A (en) * 1971-06-22 G. Mason Stanley Encapsulated hydrophilic compositions and methods of making them
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
JPS5128589B1 (nl) * 1967-12-28 1976-08-20

Also Published As

Publication number Publication date
AU1823276A (en) 1978-04-06
ATA755876A (de) 1980-05-15
SE7610920L (sv) 1978-04-02
CH628823A5 (en) 1982-03-31
US4324683A (en) 1982-04-13
AT359977B (de) 1980-12-10
JPS5352616A (en) 1978-05-13
AU505888B2 (en) 1979-12-06
LU76237A1 (nl) 1977-06-07
DE2645730A1 (de) 1978-04-13
SE426245B (sv) 1982-12-20
CA1075179A (en) 1980-04-08
NL7612592A (nl) 1978-05-17

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: DAMON BIOTECH INC.

Effective date: 19871130