Process for drying and expanding microspheres

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4397799
SERIAL NO

06332195

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a process for drying and expanding microspheres whereby first a dispersion of the microspheres in an inert liquid is prepared. This dispersion is then atomized in a hot inert gas. The process of the invention is advantageously carried out in a spray dryer.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
KemaNord ABSTOCKHOLM0

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edgren, Anders T Sundsvall, SE 1 45
Svedberg, Lars-Olof Kvissleby, SE 5 57

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Patent Info (Count) # Cites Year
 
DOW CORNING S.A. (1)
6194476 Compressible silicone composition 10 1999
 
TYCO INTERNATIONAL (PA), INC., A CORPORATION OF NEVADA (1)
6235801 Method of expanding a gel material 16 1999
 
Other [Check patent profile for assignment information] (1)
* 2009/0047,358 PHOSPHOLIPID-BASED POWDERS FOR DRUG DELIVERY 5 2008
 
GENERAL ELECTRIC COMPANY (2)
6884507 Use of high modulus, impact resistant foams for structural components 8 2003
* 2004/0198,852 USE OF HIGH MODULUS, IMPACT RESISTANT FOAMS FOR STRUCTURAL COMPONENTS 4 2003
 
SULZER CHEMTECH AG (2)
* 6447627 Process for manufacturing moulded articles made of plastics, cellulose or wood pulp and provided with cavities 2 2000
6875298 Process for manufacturing molded articles provided with cavities 1 2002
 
Matsumoto Yushi-Seiyaku Co., Ltd. (4)
7807729 Heat-expanded microspheres, production process thereof, heat-expandable microspheres and application thereof 1 2004
8129020 Thermally expanded microspheres and a process for producing the same 0 2006
* 2009/0280,328 THERMALLY EXPANDED MICROSPHERES AND A PROCESS FOR PRODUCING THE SAME 9 2006
8486531 Thermally expanded microspheres and a process for producing the same 0 2012
 
L'OREAL (1)
* 2009/0022,700 Cosmetic water-soluble film 2 2008
 
CASCO NOBEL AB (2)
* 5484815 Process for preparation of expanded thermoplastic microspheres 10 1994
* 5585119 Device for preparation of expanded thermoplastic microspheres 10 1995
 
NOVARTIS AG (14)
7871598 Stable metal ion-lipid powdered pharmaceutical compositions for drug delivery and methods of use 2 2000
7442388 Phospholipid-based powders for drug delivery 19 2001
8168223 Engineered particles and methods of use 5 2001
7306787 Engineered particles and methods of use 65 2002
7368102 Pulmonary delivery of aminoglycosides 51 2002
8404217 Formulation for pulmonary administration of antifungal agents, and associated methods of manufacture and use 0 2005
8715623 Pulmonary delivery of aminoglycoside 1 2007
8709484 Phospholipid-based powders for drug delivery 0 2008
9554993 Pulmonary delivery particles comprising an active agent 0 2010
8246934 Respiratory dispersion for metered dose inhalers comprising perforated microstructures 5 2010
8349294 Stable metal ion-lipid powdered pharmaceutical compositions for drug delivery and methods of use 0 2010
8877162 Stable metal ion-lipid powdered pharmaceutical compositions for drug delivery 0 2012
9439862 Phospholipid-based powders for drug delivery 0 2014
9421166 Pulmonary delivery of aminoglycoside 0 2014
 
NATIONAL CHIAO TUNG UNIVERSITY (1)
* 2003/0080,822 Planar mode converter used in printed microwave integrated circuits 0 2002
 
NOVARTIS PHARMA AG (2)
6565885 Methods of spray drying pharmaceutical compositions 115 1998
* 2004/0105,820 Phospholipid-based powders for inhalation 36 2003
 
Fujibo Holdings, Inc. (1)
9149905 Polishing pad and method for producing same 0 2012
 
ELC MANAGEMENT LLC (5)
* 2007/0071,978 Cosmetic Composition Containing Thermoplastic Microspheres and Skin Beneficial Agents 16 2006
* 2009/0285,866 Self-healing polymer compositions 2 2008
* 2010/0040,696 Composite Particles Having An Antioxidant-Based Protective System, And Topical Compositions Comprising The Same 3 2009
8383160 Compositions comprising solid particles entrapped in collapsed polymeric microspheres, and methods of making the same 1 2011
8632816 Compositions comprising solid particles entrapped in collapsed polymeric microspheres, and methods of making the same 0 2012
 
HENKEL LOCTITE CORPORATION (1)
* 5660901 Oriented expanded molded products 27 1994
 
ROHM AND HAAS ELECTRONIC MATERIALS CMP HOLDINGS, INC. (1)
6439989 Polymeric polishing pad having continuously regenerated work surface 21 1999
 
Lipo Chemicals, Inc. (1)
* 2005/0129,759 Sustained release compositions and controlled delivery method 13 2003
 
HENKEL CORPORATION (4)
* 4722943 Composition and process for drying and expanding microspheres 69 1987
* 4829094 Thermoplastic microspheres 37 1987
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Wacker-Chemie GmbH (3)
* 5998548 Compressible, sulfur-containing silicone rubber 9 1998
* 2003/0055,157 Silicone rubber composition for producing cables or profiles with retention of function in the event of fire 6 2002
* 2005/0215,669 Silicone rubber composition for producing cables or profiles with retention of function in the event of fire 1 2005
 
KIMBERLY-CLARK WORLDWIDE, INC. (1)
* 2011/0155,338 Bulk Enhancement For Airlaid Material 1 2009
 
SOVEREIGN HOLDINGS, LLC (7)
* 4843104 Syntactic polymer foam compositions containing microsphere fillers 22 1987
* 4908391 Opacifiers for paints and coatings 5 1988
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HENKEL IP & HOLDING GMBH (2)
7368167 Ultra low density thermally clad microspheres and method of making same 4 2004
* 2005/0282,014 Ultra low density thermally clad microspheres and method of making same 0 2004
* Cited By Examiner