Patent Briefing

PATENT BRIEFING

BELGIUM

• Belgian Patent 902,572 (1985) Encapsulation of volatile organic liquids FREUND INDUSTRY CO., LTD. A method of encapsulating an organic liquid in amorphous silica particles of diameter 300 pm is described.
   Google Scholar
• Belgian Patent 902,788 (1985) Anthelmintic mebendazole formulation CENTRAL LABORATORY OF HELMINTHOLOGY, SOFIA. E. E. Gabev, D. K. Svilenov, 0. Polyakova-Kresteva, I. V. Ivanov and T. Khassan. The formulation, which can be used for the treatment of hydatidosis, is prepared as a liposome with egg yolk.
   Google Scholar

EUROPE

• European Patent Application 153,600 (1985) Coating compositions containing polymeric microparticles PPG INDUSTRIES, INC. K. G. Olson, M. E. Hartman, S. K. Das and R. Dowbenko. High-solids, sagging-resistant coating compositions with metallic pigments contain film-forming polymers and crosslinked microparticles.
   Google Scholar
• European Patent Application 154,368 (1985) Microencapsulated natural pigmenting agent for animal feed ASCOR CHIMICI S.R.L. P. Cicognani and N. Massi. A natural colouring material for animal feeds consists of a microencapsulated pigment based on vegetable oil containing carotenoids and xanthophylls.
   Google Scholar
• European Patent Application 154,749 (1985) Solid phase immunoassay with visual readout BECTON, DICKINSON & CO. R. L. Campbell, D. B. Wagner and J. P. O'Connell. In a solid-phase assay for an analyte, a tracer composed of a ligand labelled with a dye-loaded liposome on a nitrocellulose support can he observed visually.
   Google Scholar
• European Patent Application 158,441 (1985) Liposome-forming composition PHARES PHARMACEUTICAL RESEARCH N.V. S. Leigh. Liposomes which are oligo or multi-lamellar vesicles can have a drug entrapment of 2...20 per cent.
   Google Scholar
• European Patent Application 160,286 (1985) Liposomes TEIRTMO CORP. J. Aoyagi, Y. Yamamoto, T. Akaike and Y. Nozaki. Liposome walls can be strengthened by the addition of ascorbic acid esters to liposome lipids.
   Google Scholar
• European Patent Application 162,724 (1985) Vesicle stabilization VESTAR RESEARCH, INC. G. W. Y. Tin. Micelles are stabilized to improve their shelf life by suspension in a polymeric polysaccharide or polypeptide gel matrix which solidifies at low temperatures and melts at room temperature.
   Google Scholar
• European Patent Application 162,938 (1985) Use of isocyanate or isothiocyanate polymers for making microcapsules J. Schmidt and M. Unruh. Microcapsules, useful in the preparation of copying paper based on chemical reactions, were prepared.
   Google Scholar
• European Patent Application 162,979 (1985) Electrically conductive microballoons and compositions incorporating them CAROLINA SOLVENTS, INC. W. L. Gindrup and R. R. Vinson. Electrically conductive microparticles consist of non-conductive ceramic microballoons with a metallic conductive coating. When dispersed in a non-conductive matrix, a network of contacting particles is formed.
   Google Scholar

FRANCE

• French Demande 2,561,101 (1985) Liposomes UNIVERSITE PARIS-SUD. F. Puisieux and D. Beau. Liposome drug formulations are prepared by first preparing a water-in-oil emulsion with the drug in the aqueous phase, next, removing the organic solvent and finally a second aqueous phase containing lipo- and hydrophilic materials is added and the residual solvent evaporated.
   Google Scholar
• French Demande 2,565,102 (1985) Pharmaceutical microcapsules UNIVERSITE PARIS-SUD. R. Fickat, S. Benita and F. Puisieux. Biodegradable microcapsules for in situ drug release, and which were degraded within 7 days when tested on dog kidney in vivo, are made of serum albumin partly crosslinked by interfacial polymerization.
   Google Scholar

FR GERMANY

• German Offenlegungsschrift 3,347,336 (1985) Material for producing forms for ceramic articles ROESLER PORZELLAN- UND KERAMIC G.M.B.H. C. Roesler. A suitable material contains plastics, curing agents, glass microspheres of diameter 100–200 pm and sodium salts.
   Google Scholar
• German Patentschrift 3,412,956 (1985) Small hollow targets for nuclear fusion DR. JOHANNES HEIDENHAIN, G.M.B.H. H. Kraus and E. Bayer. Small hollow spheres for use as targets for nuclear fusion studies are prepared by depositing a conductive film of gold on to glass microspheres, and then dissolving the glass with hydrogen fluoride vapour.
   Google Scholar

JAPAN

• Japan Kokai Tokkyo Koho 60 101,547 (1985) Pressure-fixing microencapsulated toners CANON K. K. Pressure-fixing microencapsulated toners showing good fixability, durability and charge controlling properties, and used for preparing single-component developers, were prepared., Japan Kokai Tokkyo Koho 60 110,329 (1985) Multilayered microcapsules with polysaccharides for the outer and water-immiscible fluids for the inner layers MITSUBISHI ACETATE CO., LTD. Multilayered microcapsules with water-immiscible fluids as the inner layers, and polysaccharides containing carrageenan as the outer layer, may contain pharmaceuticals, perfumes or food.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 110,331 (1985) Microencapsulation with ion-pair polymer complex hydrogels AGENCY OF INDUSTRIAL SCIENCES AND TECHNOLOGY. Pharmaceutical microcapsules suitable for the encapsulation of enzymes and vitamins are prepared with hydrogel membranes consisting of ion-pair complexes as the outer layer.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 130,641 (1985) Thermosetting resin compositions for lacquerware DAIWA CO., LTD. The compositions are comprised of a resin, a botanical fibre powder and a liquid-containing heat-expandable microcapsule.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 147,745 (1985) Microcapsule toners CANON K.K. K. Wakamiya, M. Yamazaki, T. Matsumoto, I. Osaki, T. Nakahara and N. Ushiyama. A microcapsule electrostatographic toner giving high-density images, even from low potential electrostatic latent images, consists of a core material coated with a shell which is treated with an antistatic agent.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 153,938 (1985) Preparation of liposome-containing cosmetics POLA CHEMICAL INDUSTRIES, INC. M. Takenochi. A method useful in the manufacture of skin cosmetics and hair preparations involves incorporating phospholipids, polyols and/or lower aliphatic alcohols into liposomes.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 161,199 (1985) Ink erasers SEED RUBBER INDUSTRY CO., LTD. S. Ohashi and Y. Nishioka. Bleeding-resistant ink erasers consist of finely powdered waxes or gels containing solvents for oil- or water-based ink binders and colorants, preferably microencapsulated in water-soluble polymers and dispersed in polymer bases.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 166,026 (1985) Microencapsulated double nucleus dispersions with polymer wall membranes MITSUBISHI PAPER MILLS, LTD. F. Okumura and T. Lids. The preparation of the title dispersions, useful in the manufacture of carbonless pressure-sensitive recording papers, is described.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 166,518 (1985) Automobile window weather strips KINUGAWA RUBBER INDUSTRY CO.. LTD. T. Yamaguchi and T. Shioda. Rubber or plastic weather strips are coated with silicone oil microencapsulated in resins. The strips adhere well and the microcapsules gradually break releasing the oils.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 172,343 (1985) Multilayer microcapsules A. HORIKAWA. Microcapsules with diameter 500 pm were prepared by discharging the components through concentric circular nozzles.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 172,344 (1985)Microcapsules MORISEDTA JINTAN CO., LTD. Y. Kamaguchi. The core and shell components are discharged from coaxial nozzles by centrifugal force under hardening conditions to produce microcapsules.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 175,540 (1985) Preparation of microcapsules containing urease for artificial kidney AGENCY OF INDUSTRIAL SCIENCES AND TECHNOLOGY. K. Obuchi, H. Kobayashi, H. Suzuki and A. Kamibayashi. Microcapsules useful in haemodialysis were prepared.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 178,812 (1985) Separation of Liposomes (drug carriers) TOY° SODA MANUFACTURING CO., LTD. H. Watanabe and M. Uchikura. Liposomes prepared from dipalmitoyllecithin and cholesterol were separated by chromatography on a porous methacrylate polymer gel in less than one hour.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 179,289 (1985) Recording materials FUJI PHOTO FILM CO., LTD. M. Satomura, K. Iwakura and T. Sugiyama. A recording material consists of a microencapsulated colour former sheet and a colour developer sheet. When contacted under pressure an image was produced having improved optical density, lightfastness and heat stability.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 184,259 (1985) Pressure-fixing type microcapsule toners KONISHIROKU PHOTO INDUSTRY CO., LTD. H. Yamazaki, T. Nagai, S. Suzuki and S. Kawakami. Pressure-fixing type microcapsule toners containing a silicone compound, which improves the antioffset properties as well as the pressure fixability, were prepared.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 184,873 (1985) Recording materials FUJI PHOTO FILM CO., LTD. K. Iwakura and T. Sugiyama. Materials giving high-density images, hence useful as pressure- and heat-sensitive recording materials consist of a microencapsulated colour-forming sheet and a colour-developing sheet.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 186,869 (1985) Electrostatographic pressure-fixing microcapsule toners KONISHIROKU PHOTO INDUSTRY CO., LTD. H. Yamazaki, T. Nagai, S. Suzuki and S. Kawakami. Electrostatographic pressure-fixing type microencapsulated toners containing a silicone oil were prepared.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 186,870 (1985) Electrostatographic pressure-fixing microcapsule toners KONISHIROKU PHOTO INDUSTRY CO., LTD. H. Yamazaki, T. Nagai, S. Suzuki and S. Kawakami. Electrostatographic pressure-fixing type microencapsulated toners containing an acrylic resin and a silicone oil in the core were prepared.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 186,871 (1985) Electrophotographic pressure-fixing microcapsule toners KONISHIROKU PHOTO INDUSTRY CO., LTD. H. Yamazaki, T. Nagai, S. Suzuki and S. Kawakami. Electrostatographic pressure-fixing type magnetic capsule toners containing a silicone compound were prepared.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 186,872 (1985) Electrostatographic microcapsule tonersm KONISHIROKU PHOTO INDUSTRY CO., LTD. H. Yamazaki, T. Nagai, S. Suzuki and S. Kawakami. Pressure-fixing magnetic microcapsule toners were prepared.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 186,873 (1985) Pressure-fixing type electrostatographic microcapsule toners KONISHIROKU PHOTO INDUSTRY CO., LTD. H. Yamazaki, T. Nagai, S. Suzuki and S. Kawakami. The preparation of electrostatographic microencapsulated toners is described.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 188,329 (1985) Preparation of liposomes containing hematoporphyrins AJINOMOTO CO., INC.; MOCHIDA PHARMACEUTICAL CO., LTD. S. Ikegami. The transport of haematoporphy-rins incorporated in liposomes into cancer cells is more rapid than if the unincorporated drug is used.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 189,490 (1985) Thermal-transfer recording material CANON K.K. N. Kushida, H. Sato and K. Tanaka. A material producing high-quality images on a receptor having various degrees of surface smoothness with an applied magnetic field contains a microencapsulated transfer layer.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 189,491 (1985) Thermal-transfer recording material CANON K.K. N. Kushida, H. Sato and K. Tanaka. A material producing high-quality images on receptors having a varying degree of surface smoothness contains a microencapsulated transfer layer.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 198,558 (1985) Encapsulated toners FUJI PHOTO FILM CO., LTD. T. Mikami and K. Matsuoka. Encapsulated toners for electrostatic recording showing high fluidity, apparent density and low compressibility were prepared.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 201,986 (1985) Thermal recording material FUJI PHOTO FILM CO., LTD. T. Tanaka, T. Usami and S. Ishige. A thermal recording material having a microencapsulated recording layer has improved storage stability and image density and fixes the image by photodecomposition of the encapsulated diazo compound.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 205,967 (1985) Preparation of porous sintered electrode plates for sealed alkaline battery SHIN-KOBE ELECTRIC MACHINERY CO., LTD. T. Henmi. The preparation includes coating a nickel-plated porous iron support with a slurry of nickel powder, a binder and heat-expanding capsules of polymer then drying and sintering.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 212,219 (1985) Manufacturing of microcapsule JAPAN OXYGEN CO., LTD. T. Kimijima, M. Taniguchi and Y. Satomi. An easily operable, cost-effective method for preparing microcapsules which can be widely used in medicine, fertilizer and perfume industries is described.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 212,391 (1985) Thermal-transfer material CANON K.K. H. Sato, N. Kushida and K. Tanaka. A material providing improved transfer image quality on a rough recording surface has a heat-transferring ink layer and a second microencapsulated ink layer.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 222,283 (1985) Thermal recording material FUJI PHOTO FILM co., LTD. M. Iwasaki, H. Kamikawa and T. Usami. The material, which has good storage stability and produces an image with high density and low background stain, consists of a paper support coated with a microencapsulated diazo compound, a coupling component and a base.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 224,609 (1985) Cosmetic makeup containing microcapsules with moisture-holding materials POLA CHEMICAL INDUSTRIES, INC. M. Horino, M. Hanbayashi, K. Iyanagi and M. Nagai. Makeup materials which can be smoothly applied to the skin and adhere evenly for a long period contain microencapsulated polyethylene glycol, alcohols etc. which hold moisture in the skin.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 235,636 (1985) Microcapsules LION CORP. H. Arai, H. Yamamoto and S. Konishi. Microcapsules with pearlized colour tone and glossy surface were prepared.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 238,139 (1985) Microcapsules KOBAYASHI PERFUMERY CO., LTD. S. Ito, H. Kurihara, I. Ko and S. Kobayashi. Microcapsules containing hydrophilic core substances are prepared. The preparation of microcapsules containing 40 per cent linalyl acetate is described.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 238,140 (1985) Microcapsules OJI PAPER CO., LTD.; SHOWA HIGHPOLYMER CO., LTD. M. Kawamura, H. Okamoto, T. Shimada, T. Sato, Y. Doi and M. Awano. Microcapsules showing good encapsulating properties and characteristics were prepared from water-soluble terpolymer electrolytes.
   Google Scholar
• Japan Kokai Tokkyo Koho 60 255,728 (1985) Preparation of phospatidykholine-iron oxide vesicles for the treatment of cancer MOCHIDA PHARMACEUTICAL CO., LTD. S. Yamaguchi and N. Mochida. Liposomes, containing magnetic Fe304 particles and phosphatidylcholines, when administered to animals with tumours, are readily absorbed by the tumour.
   Google Scholar

PCT

• PCT Application 85 03,640 (1985) Liposome-gel compositions LIPOSOME CO., INC. M. C. Popescu, A. L. Weiner and S. S. Carpenter-Green. A liposome containing a bioactive agent provides sustained release by being sequestered in a gel matrix.
   Google Scholar
• PCT Application 85 03,778 (1985) Blood fluid composition for cell lysis system COOPER LIPOTECH, INC. H. Schreir, F. J. Martin and V. T. Kung. A blood fluid composition containing lipid vesicles capable of reducing the nonspecific cell lysis was prepared for use in homogeneous cell lysis immunoassays.
   Google Scholar

USA

• US Patent 4,533,615 (1985) Abrasion development MEAD CORP. J. S. Arney and R. F. Wright. A positive photocopying sheet consists of a support coated with a chromogenic material, and a photocurable composition with a dye precursor in rupturable microcapsules.
   Google Scholar
• US Patent 4,544,545 (1985) Liposomes containing modified cholesterol for organ targeting UNIVERSITY OF MASSACHUSETTS. P. J. Ryan, M. A. Davis and D. L. Melchior. Liposomes adapted for specific organ targeting contain a therapeutic agent contained in an outer layer of a cholesterol ester.
   Google Scholar
• US Patent 4,547,222 (1985) High print intensity marking fluid NCR CORP. N. Marinelli. Carbonless copying paper, giving blue or black copies with high print intensity, were prepared using microencapsulated dyes.
   Google Scholar
• US Patent 4,551,739 (1985) Record member APPLETON PAPERS, INC. R. E. Miller and S. L. Vervacke. A developer composition is described which provides a pressure-sensitive copying paper with improved speed of image formation. A paper support coated with the composition was tested in a typewriter with a microcapsule-coated back sheet.
   Google Scholar
• US Patent 4,554,235 (1985) Microencapsulated transfer imaging system employing developer sheet and discontinuous layer of thermoplastic pigment MEAD CORP. P. C. Adair and G. D. Metz. A photoimaging transfer system, also useful for pressure copying, consists of an imaging sheet supporting a layer of microencapsulated photosensitive material, and a developer sheet.
   Google Scholar
• US Patent 4,561,981 (1985) Treatment of fouling with microcapsules W. G. Characklis. An efficient system for targeting microencapsulated active ingredients on to the inner wall of pipelines to control fouling, corrosion and scaling is described.
   Google Scholar