AT433747T - A method for applying multiple layers of coating substances to template particles - Google Patents

A method for applying multiple layers of coating substances to template particles

Info

Publication number
AT433747T
AT433747T AT05027658T AT05027658T AT433747T AT 433747 T AT433747 T AT 433747T AT 05027658 T AT05027658 T AT 05027658T AT 05027658 T AT05027658 T AT 05027658T AT 433747 T AT433747 T AT 433747T
Authority
AT
Austria
Prior art keywords
method
multiple layers
applying multiple
coating substances
template particles
Prior art date
Application number
AT05027658T
Other languages
German (de)
Inventor
Edwin Donath
Gleb Sukhorukov
Karl-Heinz Lerche
Andreas Voigt
Hans Baeumler
Frank Caruso
Helmuth Moehwald
Original Assignee
Max Planck Gesellschaft
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
Family has litigation
Priority to DE1998112083 priority Critical patent/DE19812083A1/en
Priority to EP19980113181 priority patent/EP0972563A1/en
Priority to DE1999107552 priority patent/DE19907552A1/en
Application filed by Max Planck Gesellschaft filed Critical Max Planck Gesellschaft
Publication of AT433747T publication Critical patent/AT433747T/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27218222&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AT433747(T) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET 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
    • A61K9/5026Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET 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
    • 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
    • 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
    • B01J13/20After-treatment of capsule walls, e.g. hardening
    • B01J13/22Coating
AT05027658T 1998-03-19 1999-03-19 A method for applying multiple layers of coating substances to template particles AT433747T (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1998112083 DE19812083A1 (en) 1998-03-19 1998-03-19 Simple preparation of coated particles, used to prepare systems for slow and/or targeted release of actives including pharmaceuticals, contrast agents, herbicides, pesticides, catalysts and pigments
EP19980113181 EP0972563A1 (en) 1998-07-15 1998-07-15 Fabrication of multilayer-coated particles and hollow shells via electrostatic self-assembly of nanocomposite multilayers on decomposable colloidal templates
DE1999107552 DE19907552A1 (en) 1999-02-22 1999-02-22 New stable polyelectrolyte capsules of controllable permeability, prepared by coating template particles, useful e.g. for controlled drug release

Publications (1)

Publication Number Publication Date
AT433747T true AT433747T (en) 2009-07-15

Family

ID=27218222

Family Applications (4)

Application Number Title Priority Date Filing Date
AT05027658T AT433747T (en) 1998-03-19 1999-03-19 A method for applying multiple layers of coating substances to template particles
AT06019183T AT524166T (en) 1998-03-19 1999-03-19 Capsules containing lipids in the case
AT99911804T AT316420T (en) 1998-03-19 1999-03-19 Producing nano- and microcapsules by layered polyelectrolyte self-assembly
AT05027659T AT524165T (en) 1998-03-19 1999-03-19 A process for producing capsules with a polyelectrolyte shell

Family Applications After (3)

Application Number Title Priority Date Filing Date
AT06019183T AT524166T (en) 1998-03-19 1999-03-19 Capsules containing lipids in the case
AT99911804T AT316420T (en) 1998-03-19 1999-03-19 Producing nano- and microcapsules by layered polyelectrolyte self-assembly
AT05027659T AT524165T (en) 1998-03-19 1999-03-19 A process for producing capsules with a polyelectrolyte shell

Country Status (6)

Country Link
EP (4) EP1647270B1 (en)
JP (1) JP2002506719A (en)
AT (4) AT433747T (en)
DE (3) DE29924358U1 (en)
DK (1) DK1064087T3 (en)
WO (1) WO1999047252A2 (en)

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Also Published As

Publication number Publication date
EP1867325B1 (en) 2011-09-14
EP1647326A3 (en) 2006-09-20
AT524166T (en) 2011-09-15
WO1999047252A3 (en) 2000-01-13
EP1064087B1 (en) 2006-01-25
EP1647326B1 (en) 2011-09-14
DE29924358U1 (en) 2003-01-02
EP1867325A2 (en) 2007-12-19
EP1064087A2 (en) 2001-01-03
EP1647270A2 (en) 2006-04-19
AT316420T (en) 2006-02-15
EP1867325A3 (en) 2009-07-15
EP1064087A4 (en) 2002-03-27
EP1647270B1 (en) 2009-06-17
WO1999047252A2 (en) 1999-09-23
EP1647326A2 (en) 2006-04-19
JP2002506719A (en) 2002-03-05
DK1064087T3 (en) 2006-05-29
EP1647270A3 (en) 2006-09-20
DE59913080D1 (en) 2006-04-13
AT524165T (en) 2011-09-15
DE59915041D1 (en) 2009-07-30

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