DEPARTMENT OF POLYESTERS, EPOXIDE RESINS AND POLYURETHANES NB-9

Head of Department: Doc. Izabella Legocka, D.Sc.
tel +48 (22) 568 26 51; + 48 (22) 568 26 93;
e-mail: izabella.legocka(at)ichp.pl

Office: Zofia Wójcik,
tel: +48 (22) 633 92 69, +48 (22) 568 28 91, fax: +48 (22) 568 25 64.

• Modification of Polymers and New Polymeric Materials Group

• Polyester Resins Group

• Coating Resins and Plasticizers Group

• Epoxy Resins Group

• Polyurethanes and Binders Group

• Polymers for Special Application Group

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Modification of Polymers and New Polymeric Materials Group

Head: Doc. Izabella Legocka, D.Sc.
tel +48 (22) 568 26 51; + 48 (22) 568 26 93; fax. +48 (22) 568 25 64
e-mail: izabella.legocka(at)ichp.pl

Research field

1. Novel polymeric materials
   
   
• Modification by chemical and physico-chemical methods of thermoplastics; modification of polyolefins
• Functional polymers, macroradical modifiers for polymers, modifiers for compatibility carriers for additives such as stabilizer
• Organic and inorganic fillers, their uses as precursors in polyfunctional reaction and as structural modifiers of polymeric composites.
  
  
2. Uses of renewable polymer to obtain thermoplastic materials
   
   
• Packing
• Adhesive
• Intermedia product
  
  
3. Thermoplastic, adhesive solvent free type hot melt:
   
   
• Adhesive of polycondensation type (polyamides, polyesters)
• Adhesive based on PP, PE, copolymer EVA, EEA and cautchouc (rubber) SIS, SBS and other.
  
  

Experience

• Very good experience in technological field of manufacturing different adhesive of non-solvent type and their modification (introducing several technology in industry).

• Experience in the field modification of polyolefin, specially PP, modification conventional thermoplastic in the direction to receive ecological polymers natural friend type i.e. biodegradable polymer.

• Modification of polymer in processing reactive product.

Technologies offered

• Heat resistance of non-halogenated composite of polyolefin in cable industry

• Adhesive of hot-melt type

• Modificator for polymer, copolymer and composite polymers.

Awards

• Prize of first degree NOT type for using polyterphthalic ethylene in foot wear industry;1986

• Prize of first degree in industrial cooperation work for using thermoplastics adhesive in polygraphy; 1985

• Golden medal in expose in innovation held in Brussels 2002 in the field of urea-formaldehyde resin technology by reducing formaldehyde content

• Golden medal in expose of innovation held in Brussels 2005.

Expected collaboration

We are looking for scientific center or company interested to cooperate in the following fields:

• Composite polymers

• Modificators for polymers

• Test the characters or properties of composite polymers, uses of modificator

• Modification of fillers with their uses.

Selected publications

• Legocka, E. Bujnowska, Z. Zimek, K. Mirkowski: Studies on application PE filler modified by radiation, Radiation Physics and Chemistry, (57) 2000 r., 411-416

• Legocka, Zb. Zimek "Adhesive properties of hot-melts modified by radiation" Rad. Phys. And Chem., 1998,52 (1-6)

• Legocka, A. Busygin, A. Czałych "Swobodnoje powierchnostnoje I fazowyje rownowiesije system PPa - oligocyklo - pentadien"Zh. Prikladnoj Khim., 1998, 68, (1)

• Legocka I., Bujnowska E., Gałęski A., Bartczak Z. "Chemiczna modyfikacja polipropylenu przy użyciu żywic oligomerycznych", publ. " Prace Naukowe" Inst. Tech. Org.i Tw. Szt. Politechniki Wrocławskiej, 2001r

• A. Gritskova, I. Grzywa-Niksińska, E.Grzywa, I.Legocka "Preparation of polystyrene suspension under the condiction of formation of surface active substances at the interface", Polimery, 1995, 40(10), .568-571

• Legocka, J. Kozakiewicz, A. Koncka,: "Synthesis and characterization of aqueous hybrid polyurethane- acrylic/styrene dispersions.", monogr. Advances in urethane sci. and techn., vol 15, 2001 r., 8, wyd. RAPRA

• I. Legocka., Zimek Z., Mirkowski K., Zielonka M. "Rheological properties of polyethylene blends modified by radiation method" - JAERI) , Pekin- Chiny , IX 2001 (artykuł w materiałach konf. Wyd. MAEA- Wiedeń - 2003)

• Legocka, G. Przybytniak, J. Sadło"An influence of ionising radiation on poly(siloxaneurethanes)- material for biomedical applications", Inżynieria biomateriałów, 2004, No 38-40

• Z.I.Ali, I. Legocka "Effect of metal salt of ethylene/methacrylic acid copolymer on electron beam crosslinking of low density polyethylene" - Advances in Polymer Technology, vol.24, No. 2, 1-12, 2005

• Z.I. Ali, I. Legocka " Electron-beam irradiation of low density polyethylene in the presence of phenolic stabilizers, carboxylic acid stabilizer, or both" Journal of Applied Polymer Science, vol.96, 1275-1286, 2005.

Selected patents

• Meltable or liquefiable adhesive for furniture based on copolymer EVA. Patent numbers: 72069,144558

• Meltable self adhesive based on copplymer EVA. Patent numbers: 109696, 133049, 133469, 137146, 135820

• Meltable polyesters adhesive for footwear industry Patent numbers: 138842, 150051, 177532, 177456

• Putty thermoplastic for building (construction) industry, Patent number: 164862

• Synthetic marble Patent number: 174081.

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Polyester Resins Group

Head: Dr. Ewa Kicko-Walczak, Chem. Eng.
tel. +48 (22) 568 28 42, +48 (22) 568 23 79; fax. +48 (22) 568 25 64
e-mail: ewa.kicko-walczak(at)ichp.pl

Information in preparation

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Coating Resins and Plasticizers Group

Head: Dr. Elżbieta Wardzińska
tel +48 (22) 568 28 46, 568 23 81; fax. +48 (22) 568 25 64
e-mail: elzbieta.wardzinska(at)ichp.pl

Research field

• Polyesterimide resins

• Laqueurs based on polyesterimides for insulation of electrical wire

• Production technology of tris(2-hydroxyethyl) trimellitic acid ester

• Plasticizers for PVC

• Polyesters plasticizers

• Plasticizers from renewable and waste materials

• Water soluble alkyds resins

• Unsaturated polyester resins

• The synthesis and modification of phenolic resins

• Binders compositions for foundry

• The modification of polycondensation resins with nonofillers

• The synthesis of epoxy resins

• Polyaddtion of epoxy resins with phenols

• Epoxy resins compositions for copper clad laminate

• Liquid crystalline polyurethanes and epoxy resins

• UV-curable compositions used in electronics

• New materials used in nonlinear optics

• Carboxylic polyesters for powder coatings

• Fire retardant polymers

• Services - determination of coatings properties.

Experience

• Synthesis and modification of unsaturated polyesters

• Synthesis of polyesterimide resins for laqueurs used for insulation of electrical wire.

• Polyesters plasticizers for PVC

• Resins for coatings

• Chemical utilization of waste plastics

• Synthesis of polycondesation resins

• Synthesis and applications of epoxy resins

• Liquid crystalline polymerse

• Polyurethane and epoxy composition for high-tech

• UV- curing

• Flame and fire retardant polymers compositions.

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Epoxy Resins Group

Head: Dr. Bończa-Tomaszewski
tel +48 (22) 568 28 85; fax. +48 (22) 568 25 64
e-mail: zbigniew.boncza-tomaszewski(at)ichp.pl

Research field

• Epoxy resins for coatings

• Special types of epoxy resins - cycloaliphatic epoxy resins, epoxynovolacs

• Hardners for epoxy resins: polyaminoamide, Mannich base, anhydrides

• Plasticizers for epoxy resins

• Binders for coatings

• Acrylic for UV curing.

Experience

• synthesis and modification and applications of epoxy resins

• synthesis and applications of acrylic esters

• synthesis and modification of phenolic resins

• foundry resins

• powder coatings and water reducible paints

• resins for coatings

• curable adhesives

• liquid crystalline polymers

• UV-curing.

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Polyurethanes and Polymeric Binders Group

Head: Dr Janusz Kozakiewicz, Associate Professor
Tel: (+48 22) 568 2378, 568 2646, 568 2652
e-mail: janusz.kozakiewicz(at)ichp.pl

Research activity

• Synthesis of moisture-curable and water-dispersible polyurethanes and silicone-urethanes

• Polyurethane, silicone-urethane, urethane-acrylic, silicone-acrylic and alkyd-acrylic aqueous dispersions, in particular in coating applications

• Processes of emulsion polymerization and their modernization

• Modification of asphalts, coal tar pitches and hydrocarbon resins with isocyanates

• Associative polyurethane thickeners

• Ageing and application studies of adhesives, coatings, sealants and compositions

• Binders for solventless and aqueous dispersion-based uv-curable coatings

• Polymeric nanopowders as impact modifiers for powder coatings, and also resins and plastics

• Silicone-urethanes as scaffolds for live cells

• Silicone-urethanes as solid polymer electrolytes for lithium batteries

• Silicone-urethanes as membranes for separation of liquid and gaseous mixtures

• New curing agents for polyurethane coatings

• Polymeric plasticizers for PVC

Experience

High experience in development and implementation of technological processes of:

• Polyurethane and silicone-urethane elastomers for various applications

• Polyurethane and polyurethane-bitumen materials for use in building industry for filling and sealing joints, and for making hydroinsulating coats

• Aqueous polyurethane and hybrid dispersion systems,in paricular as binders for coatings

• Emulsion polymerization and copolymerization

We are also experienced in studies on new methods of synthesis of various polymers used as binders for paints, varnishes, sealants and adhesives, in investigations on the effect of chemical structure and composition on physical and application properties of various polymer systems and compositions and in testing the properties of coatings (paints and varnishes).

Expected collaboration profile

We look for companies interested in collaboration in:

• studies on synthesis of new polymers and resins, in particular for binders, adhesives, selants and coatings

• studies on synthesis of aqueous dispersions of various polymers, in particular hybrid systems

• development of new moisture-curable resins, modifiers etc.

• basic research on structure, morphology adhesion properties, surface properties, crosslinking and ageing processes of various polymers and compositions

Equipment

• Bohlin CVO 100 Rheometer (Bohlin Instruments Ltd) for determinations of dynamic viscosity of liquids, viscosity and shear stress vs. shear rate, yield stress. Investigations of curing processes of resins according to ASTM D 4473-01.

• Apparatus for investigations of curing and gelling processes - SVNC (Scanning Vibrating Needle Curemeter) from Rapra Technology Ltd. allowing for controls of the curing process of polyurethane, silicone, polysulphide, epoxy or unsaturated polyester resins and other curable resins.

• Pendulum Hardness apparatus (Model 299/300 from Erichsen Testing Equipment Gmbh&Co KG) for determination of relative hardness of coatings on glass substrate or (in cases justified e.g. due to the specific method of coating application) on metallic substrate, according to PN-79/C-81530 standard.

• Apparatus for determination of white point temperature and minimum film forming temperature - Coesfeld Material Test Gradient Plate Thermostair Model MFT.20F, allowing for controls of film formation from aqueous dispersions of polymers and copolymers according to PN-90/C-89415 standard.

• Rotation viscometer Brookfield Model HB DV II CP, allowing for determination of apparent viscosity of polymers in a state of melt, dispersion or solution according to PN-ISO 2555:1999.

• Chamber for uv-curing UVALOC 1000 type G 2001 from Loctite. Application - for determination of uv-curing ability of coatings and adhesives or other resins (according to the in-house procedure), modification of the plastics surface using uv irradiation, studies on new kind of uv-curable binders for coatings.

• Accelerated ageing chamber containing uv fluorescence lamps and moisture condensation unit UV2000 (ATLAS), allowing for cyclic uv irradiation and moisture condensation (without simultaneous irradiation) treatments of various materials. It is primarily used for selecting tests applied for elimination of coatings which do not meet weatherability requirements.

• Climatic chambers: Feutron chamber (type 3423/15), Mytron chamber (model KPK 60), Sanyo chamber (model CF 4). Application - ageing tests in summer and winter conditions (constant temperature and humidity inside the chambers) or in changing conditions following the cycles, conditioning of samples at constant temperature and humidity according to the product standard (before testing the sample according to the standardized method), investigations of moisture-curable polymers.

• Apparatus for determination of percentage of open and closed pores in the rigid foams. The test comprises determination of the geometric sample volume followed by determination of the sample volume that is not transparent for air. The method is consistent with PN-ISO 4590:1994, item 4.

Equipment for testing the substantial properties of coating binders and coatings using the following methods:

• Determination of viscosity according to PN-81/C-81508 (Ford cups)

• Determination of drying time and drying stage according to PN-79/C-81519

• Determination of elasticity of coatings through bending according to PN-76/C-81528

• Determination of adhesion of coatings according to PN-80/C-81531

• Determination of water resistance of coatings according to PN-76/C-81521

• Determination of mechanical stability of aqueous dispersions and suspensions using rotary separator at temperature range -10oC - +40oC and up to 18 000 rpm

• Determination of sedimentation of aqueous dispersions according to BN-74/6531-01

Achievements

Technological processes developed and implemented so far in industrial practice:

• One-component moisture-curable polyurethane sealants for building industry: Elastofix PU-0 and PU-T

• Solventless moisture-curable polyurethane adhesives Agropol B

• One-component moisture-curable polyurethane-asphalt compositions - sealants and coatings for building and automobile industry : Elastofix PU-BT (Dachofix), Elastofix PU-BR-70, Metrofix, and coatings Elastofix PU-BL

• Solvent-based polyurethane adhesives for footweatr industry - Izokol 102, 104, 16, Lamikol, and others

• Other solvent-based adhesives: rubber-based, acrylic, and others (Butapren, Winakryl R-50, aggressive adhesive for PVC pipes), based on aqueous dispersions (Wikol, Wikol WO, Winakryl E-50, Winakryl W, Askol), acrylic for special purposes (modified acrylic adhesive), epoxy for special purposes (Epakol, yacht construction adhesive West), special for rubber-metal joints

• Acrylic sealants based on aqueous dispersions, anaerobic sealants for metal joints (Kolfix), impregnates for porous moulds (Porofix), liquid gaskets for metal joints (Motofix)

• Two-component polyurethane compounds for making moulds (Gumofix)

Awards and prizes

• Golden medal and special award from the jury at 27th International Exhibition of Inventions, Technologies and Products "PALEXPO 99" in Geneva - for "High Performance, Environmentally friendly and Biocompatible PVC-based Compositions" for a team of authors: B. Swierz-Motysia, J. Kozakiewicz, J. Przybylski, K. Sylwestrzak, W. Łuniewska, 1999

• Kozakiewicz J., Pzrybylski J., Sylwestzrak K., Swierz-Motysia B., Łuniewska W.: Diploma of Appreciation received from the Prime Minister of Poland for the invention awarded at international exhibitions, Warsaw, 10 January 2000.

Selected publications

• Świerz-Motysia B., Kozakiewicz J., Przybylski J., Pełka J.: "The performance of some monomeric and polymeric plasticizers in PVC", Polimery 1999, 44(11-12), 780-783.

• Kozakiewicz J.: Adhesion 15; "Polyurethanes and isocyanates containing hydrophilic groups as potential components of waterborne adhesives", K. W. Allen, Elsevier Applied Science, London, New York, 1991, s. 80-101.

• Godzimirski J., Kozakiewicz J., Łunarski J.: "Konstrukcyjne połączenia klejowe elementów metalowych w budowie maszyn" Podręcznik akademicki, wyd. Oficyna Wydawnicza Politechniki Rzeszowskiej, Rzeszów 1997, s 1-220.

• Kozakiewicz J.: "Advances in Moisture-Curable Silicone-Urethane Polymers. Advances in Urethane Science and Technology" (ed. K.C. Frish, D. Klempner), wyd. Technomic Publ. Co. Lancaster, New York 1998, vol. 14, s 97-149.

• Kozakiewicz J., Janik H., Kwiatkowski R., Włochowicz A.: "Investigations of morphology of moisture-curable silicone-urethanes", Polym. Adv. Technol. 2000, 11, 82-91

• Kozakiewicz J., Rościszewski P., Rokicki G., Kołdoński G., Skarżyński J., Koncka-Foland A.: "Aqueous dispersions of siloxane-acrylic/styrene copolymers for use in coatings - Prepoliminary investigations", Surface Coatings International Part B, Coatings Transactions, 2001, 84, B4, 301-307

• Kozakiewicz J., Koncka-Foland A., Skarżyński J., Legocka I.: rozdział 6 "Synthesis and charactersation of aqueous hybrid polyurethane-urea-acrylic/styrene polymers dispersions", w Advances in Urethane Scince and Technology, RAPRA Technology LTD, 261-334

• Zielecka M., Kozakiewicz J., Przybylski J., Sobczak J.: "Studies on the surface properties of silicone-containing hybrid systems" Surface Coatings International Part B: Coatings Transactions 2002, 85, B3, 215-220

• Kwiatkowski R., Włochowicz A., Kozakiewicz J., Przybylski J.: "WAXS and SAXS study of (m) TMXDI-PDMS siloxane-urethaneureas", Fibres&Textiles in Eastern Europe, Vol. 11, No. 5 (44), 2003, s 107 - 114

• Pawłowski P., Szymański A., Kozakiewicz J., Przybylski J., Rokicki G.: "Poly(urethane-urea)s based on oligocarbonate diols comprising bis(carbamate)alkanes", Polym. J. 2005, 37(10), 742-753

• Czerwiński W., Ostrowska-Gumkowska B., Kozakiewicz J., Kujawski W., Warszawski A.: "Siloxane-urethane membranes for removal of volatile organic solvents by pervaporation", Desalination 2004, 163, 207-214

• Kozakiewicz J., Zielecka M., Koncka-Foland A., Bujnowska E., Szulc A.: "Silicone-containing hybrid polymer dispersions designed for coating applications", Polimery 2006, 51(2), 124-132

• Gomes D., Peinemann K.V., Nunes S. P., Kujawski W., Kozakiewicz J.: "Gas transport properties of segmented poly(ether siloxaneurethaneurea) membranes", Journal of Membrane Science 2006, 281, 747-753

• Kozakiewicz J., Koncka-Foland A., Skarżyski J., Sobczak J., Kielecka M.: "Studies on the effect of structural parameters on the properties of polysiloxaneurethane dispersions and coatings", Surface Coatings International. Part B: Coatings Transactions 2006, 89, 31-39

• Kozakiewicz J., Przybylski J., Koncka-Foland A.: "Studien an spezialelastomeren auf basis von polysiloxan-bloecke enthaltenden elastomeren", Gummi Fasern Kunststoffe 2006, (6), 363-370

• Kornacka E., Kozakiewicz J., Legocka I., Przybylski J., Przybytniak G., Sadło J.: "Radical processes induced In poly(siloxaneurethaneureas) by ionising radiation", Polym. Degradation and Stability 2006, 91, 2182-2188

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Polymers for Special Application Group

Head: Prof. Dr. Edward Grzywa, Chem.Eng.
tel +48 (22) 568 28 91; fax. +48 (22) 568 25 64
e-mail: edward.grzywa(at)ichp.pl

Research field

• Thermoplastic ecological PVC compositions for medical and technical applications - composition of enhanced stability, containing polyesterurethanes of designated structure

• Purification of salicylic acid

• Purification of sulphathiasol

• Purification of vegetable crude oil

• Purification of oil from engine

• Purification of glycerine

• Polymer dispersion for medical plasters

• Anticorrosion polymer dispersion

• New generation of initiators for radical polymerization

• Photon correlation spectroscopy in research applications

• Ultra, nano filtration and reverse osmosis for purification and separation of natural substances.

Experience

• Polymer suspension

• Monodisperse latex

• Medical diagnostic test

• Isolation and purification of the pharmaceuticel substances

• Isolation and purification of natural substances: gibberellic acid, heparin.

Elaborated technologies

• New ecological PVC compositions for medical and technical applications - composition of enhanced stability, containing polyesterurethanes of designated structure,

• Monodisperse latex

• Latex diagnostic tests for reumatoidal factor (RF) determination and thyreorglobulin antybodies (THYRO)

• Water-born pressure sensitive acrylic adhesive for medical application

• Colorimetric tests strip for various application.

Awards

• Bronze medal , III World Exhibition INNOWACJE 2000, Poland , "Polymer application in the techniques of the purification and isolation"

• Silver medal, International Exhibition IENA 2000, Germany, " Use of polymeric sorbents forinsulation and purification of natural substances"

• Gold medal, International Invention EXPO 2000, Honk Kong , "Isolation and purification of natural pharmaceutical substances"

• Gold medal, 50 th World Exhibition "Brussels-Eureca 2001", " Use of polymeric sorbents forinsulation and purification of natural substances"

• Silver medal, 50 th World Exhibition "Brussels-Eureca 2001", " Isolation of gibberellic acid"

• Gold medal, II World Exhibition in Moscow, 2002, "Polymer application in the techniques of the purification and isolation substances for medicine".

Cooperation

• DWORY S.A., Poland

• Moscow Academy of Technology and Light Organic Synthesis.

Methods and equipment

• Photon correlation spectroscopy - dynamic light scattering (PCS) and zeta potential determination MALVERN ZETAMASTER Photon Correlation Spectrometer

• Pilot ultrafiltration plant for study membrane processes with apply flat and capillary membranes

• Ultracentrifuge, BECKMAN

• Pilot technological line for strip test production

• Digital Tensiometer K 10 ST, Kruss

• Viscometer, DV-II+, Brookfield Engineering Laboratories for determination of viscosity of oils, emulsions and pastes

• Pressure reactors.

Offered technologies

• Thermoplastic ecological PVC compositions for medical and technical applications - composition of enhanced stability, containing polyesterurethanes of designated structure

• Monodisperse latex

• Latex diagnostic tests for reumatoidal factor (RF) determination and thyreorglobulin antybodies (THYRO)

• Purification of salicylic acid

• Purification of sulphathiasol

• Purification of vegetable crude oil

• Purification of oil from engine

• Purification of glycerine.

Selected publications

• Świerz-Motysia B , Kozakiewicz J., Przybylski J., Pełka J.:" The performance of some monomeric and polymeric plasticizers in PVC", Polimery 1999, 44, 11-12, 780-783.

• Świerz-Motysia B., Zimek Z.: " The effect of Ionizing Radiation on PVC and PVC compositions", ICRI Annual Report'99, 2000, 87-92.

• Świerz-Motysia B., Kozakiewicz J., Przybylski J. "Plasticized PVC of enhanced stability" Annual Report'2000, 2001., s.59-64

• Świerz -Motysia B. Morphology and thermal properties of PVC/polesterurethane blends", Annual Report'2001, 2002, s. 72-78

• Pełka J., Kowalska E.: "Modyfikacja tworzyw termoplastycznych włóknami celulozowymi z makulatury - cz. I - Kompozycje poli(chlorku winylu) z włóknami celulozowymi z makulatury", Polimery 2001, 46, nr 3, 201-207

• Kowalska E., Pełka J.: "Modyfikacja tworzyw termoplastycznych włóknami celulozowymi z makulatury - cz. II - Modyfikacja poliolefin włóknami celulozowymi z makulatury" - Polimery 2001, 46, nr 4, 268- 274

• Grzywa-Niksińska I., Heropolitański R., Grzywa E.J., "Polymer Applications in the Techniques of Isolation and Purification, 38th Macromolecular IUPAC Symposium, Warszawa, Polska, 9-14 lipca 2000

• Jeziórska R., Zieliński W., Grzywa E.,: Poly(ether-b-ester) Copolymers, Blends, Composites and Their Applications in Block Copolymers, Wyd. Marcel Dekker, Inc. (ed. F.J. Balta Calleja, Z. Rosłoniec) Nowy Jork (USA), Bazylea (Szwajcaria) 2000, 505-530

• Balas A., Rajkiewicz M., Grzywa E., Janik H., Wojtyńska E., Wilson-Polit D.: "Materiały opatrunkowe stosowane w ortopedii i traumatologii, Cz I Opatrunki gipsowe i polimerowe"Polimery, 2001,46/9,596

• Balas A., Rajkiewicz M., Grzywa E., Janik H., Wojtyńska E., Wilson-Polit D "Materiały opatrunkowe stosowane w ortopedii i traumatologii, Cz II Quasi-prepolimery uretanowe-chemoaktywne składniki opatrunków z kompozytów poliuretanowo-tkaninowych" Polimery, 2001,46/10,715.

Selected patents

• Method of production of polystyrene suspension with narrow molecules dispersion for medical diagnostics. Pat. 171687 , 1997

• Method of production of stable polymeric suspension for biochemical investigations. Pat. 171675, 1997

• Process of manufacturing a diagnostic preparation for detecting fertility alpha-globulin in blood serum. Pat.175251, 1998

• Process of manufacturing a diagnostic preparation for detecting trophoblastic beta-globulin in blood serum for female patients. Pat.175259, 1998

• Method of isolation and purification of carbamazepine. Pat. 177017, 1999

• Method of preparing a monodisperse latex containing epoxy groups on the surface of the particles. Pat. 179075, 2000

• Method of preparing a monodisperse polystyrene latex. Pat. 179088, 2000

• Method of preparing a monodisperse latex containing chloroethyl groups on the surface of the particles. Pat. 179090, 2000

• Method of preparing a monodisperse polystyrene suspensions. Pat. 179375, 2000.