PATENT BRIEFING
CZECHOSLOVAKIA
- Polymer microparticles based on hydrophilic monomers, method for their production and their use in immunoassays
- J. Kopecek, L. Fornusek, V. Vetvicka and H. Tlaskalova.Polymeric biologically activemicroparticles suitable for immunoassay tests were prepared and used for the detection of cell surface Ig receptors and for phagocytosis tests.
- Czech. Patent 241,262 (1987)
- Preparation of microcapsules for pressure-sensitive copying papers
- S. Milichovska and M. Milichovsky.Copying layers were prepared from microencapsulatedcolour formers. Water soluble polyesters were used to increase the heat and mechanical resistances of the microcapsules prepared from urea-formaldehyde resins.
- Czech. Patent 247,538 (1987)
EUROPE
- Liposomes based on phosphatidylinositol mannosides, and pharmaceutical compositions containing them
- G. M. Barratt, E. Lederer, J. F. Petit, J. P. G. Tenu and Y. A. Yapo.[Centre National de la
- Recherche Scientifique.]Phosphatidylinositol mannosides were used for the preparation of liposomes for the encapsulation of macrophage and/or monocyte activators. European Patent Application 241,376 (1987)
- Lithographic plate preparation
- A. Hasegawa. [Fuji Photo Film Co., Ltd.]A lithographic plate which provided clean printshas high-durable image areas and stain-free nonimage areas was prepared.
- European Patent Application 242,864 (1987)
- Functionalized pharmaceutical liposomes containing an amphiphilic compound, especially lipopolysaccharides, in the membrane matrix
- M. Kida, I. Kitabata, K. Kubotsu and Y. Sakata.[Wako Pure Chemical Industries, Ltd.]Functionalized liposomes containing a high molecular weight amphiphilic compound such as lipopolysaccharides as one of the matrix materials have a very high encapsulation efficiency, readily undergo lysis and antigens, antibodies, etc. can be efficiently immobilized on the liposomes. European Patent Application 247,497 (1987)
- Preparation and use of liposome reagent for immunoassay
- M. Hatoh, Y. Ishimori and M. Koyama. [Toshiba Corp.]The immunoassay reagent consistsof liposomes containing marker material with antigen, antibody, etc. immobilized on the surface. Samples such as serum can be analyzed precisely without dilution.
- European Patent Application 248,621 (1987)
- Dialkoxyphenylquinolylethylene chromogenic compounds for pressure- or heat-sensitive recording papers
- H. Fujisaki, K. Mizuno, Y. Uda, Y. Sueto and K. Tsunemitsu.[Yamada Chemical Co., Ltd.]The title compounds are prepared and microencapsulated for use in a composition for production of heat- or pressure-sensitive recording paper. European Patent Application 256,180 (1988)
- Encapsulation of thyrotropin-releasing hormone or its analog
- T. Heya, H. Okada and Y. Ogawa. [Takeda Chemical Industries, Ltd.]Microcapsulescontaining polymers and thyrotropin-releasing analogues which achieved sustained-release of the active ingredients were prepared.
- European Patent Application 256,726 (1988)
- Thermal imaging materials
- D. R. Whitcomb and J. A. Bjork.[Minnesota Mining and Mfg Co., Ltd.]A colourlessthermographic material consists of a microencapsulated ferric compound, a transparent film-forming binder and a colourless catechol in solid solution in the binder. The thermal recording sheet showed excellent whiteness giving blue image and changing to green within 4 hours.
- European Patent Application 256,773 (1988)
- Compositions for parenteral administration of biologically active proteins and peptides
- W. Steber, R. Fishbein and S. M. Cady.[American Cyanamid Co.]A suspension of slowrelease fat and/or wax microspheres containing bovine growth hormone was injected into hypophy-sectomized rats with positive results.
- European Patent Application 257,368 (1988)
- Microencapsulation for manufacture of electrostatographic toners
- H. Yuda, T. Kohtaki, M. Yarnazaki and Y. Akashi.[Canon K. K.]The microencapsulationprocess described provides electrostatographic microencapsulated toners with improved chargeability and environmental stability without the formation of coalescent microcapsules and free shells. European Patent Application 261,686 (1988)
- Heat-sensitive recording material containing diazo compound and matting layer
- Y. Asao and S. Miyazaki. [Fuji Photo Film Co., Ltd.]A transparent polyester film is coated onone side with a matting layer containing an ester resin and on the other side with a microencapsulated heat-sensitive recording layer. The material showed improved pencil-writing property.
- European Patent Application 262,953 (1988)
- Microencapsulated particles and process for production thereof
- K. Kasai, M. Hattori, T. Shimizu and H. Tadenuma.[Japan Synthetic Rubber Co., Ltd.]Microcapsules, a method of producing them and an electrostalographic toner containing them are described. European Patent Application 266,175 (1988)
- Heat developable presensitized lithographic plates A. Hasegawa and S. Yamamoto. [Fuji Photo Film Co., Ltd.]The presensitized lithographicplate has a photosensitive layer containing microcapsules of silver halide, a reducing agent and a polymerizable compound. The process does not require a developing solution.
- European Patent Application 267,037 (1988)
- Ectoparasite control on domestic animals, using microencapsulated parasiticides
- J. F. Graf, H. W. Haesslin, H. J. Schuurman, T. Steiner and B. Wieland.[Ciba-Geigy A.-G.]The use of microencapsulated parasiticide emulsions of dispersions dispenses with the use of ectoparasiticidal baths or sprays.
- European Patent Application 267,150 (1988) Microencapsulated benzothiazole or benzozazole fungicide J. Thenard and S. B. Advani.[Pennwalt Corp.]The title compounds, which are microen-capsulated for use as fungicides, were effective against scab caused by Xenturia inaequalis on apples. European Patent Application 270,742 (1988)
- Microencapsulation of essential oils, drugs, and other materials in gelatin and polysaccharides
- J. David, C. Lefrancois and C. Ridoux.[Mero Rousselot Satia S.A.]Free-flowing micro-capsules containing a hydrophobic liquid or water-insoluble solid were prepared by complex coacervation of a mixture of gelatin and anionic polysaccharides.
- European Patent Application 273,823 (1988)
FEDERAL REPUBLIC OF GERMANY
- Pressure-sensitive recording materials
- [Feldmuehle A.-G.]A pressure-sensitive microencapsulated copying sheet gave good colourreaction and excellent colour intensity when contacted with an acid colour reactant-coated receptor sheet.
- German Offenlegungsschrift 3,633,116 (1988)
- Hydrozycarbozylic acid derivatives and their use as color developers in recording materials
- T. Scholl, G. Jabs and A. Richartz.[Bayer A.-G.]A developer sheet coated with hydroxycar-boxylic acid derivatives was combined with a microencapsulated copying paper and pressure applied to give an intensely coloured copy.
- German Offenlegungsschrift 3,635,742 (1988)
- Microcapsules with polyurethane walls for use in copying paper
- G. jabs and A. Richartz.[Bayer A.-G.]Microcapsules with a polyurethane wall content of12.5% were used in a copying paper giving high intensity and low smudging.
- German Offenlegungsschrift 3,635,822 (1988)
- Heat-sensitive recording material with improved transparency and scratch resistance
- A. Shimomura and T. Usami. [Fuji Photo Film Co., Ltd.]Heat-sensitive recording materialshaving outstanding transparency and scratching characteristics consist of a transparent support carrying a heat-sensitive layer of a colour developer and microencapsulated colourless electron-donating dye precursor.
- German Offenlegungsschrift 3,733,941 (1988)
FRANCE
- Microencapsulation of diazinon in polyurea
- A. Markus and Z. Pelah.[Ben-Gurion University of the Negev.]Diazinon microencapsulatedin polyurea is very effective against the American cockroach.
- French Demande 2,602,120 (1988)
GERMAN DEMOCRATIC REPUBLIC
- Preparation of fine particles of urea-formaldehyde condensates
- R. Nastke, K. Dietrich, W. Teige, P. Di Dio and T. Bertz.[Akademie der Wissenschaften der
- DDR.]Spherical particles of urea-formaldehyde polymer, with a predetermined size and narrow size distribution, useful as carriers and sorbents were prepared. German Patentschrift 248,803 (1987)
JAPAN
- Thermal recording material containing microcapsules S. Sano and Y. Saeki. [Fuji Photo Film Co., Ltd.]A thermal recording material contains amicroencapsulated colourless electron-donating dye precursor. It shows low blue stains on the coated surface and cut edges.
- Japan Kokai Tokkyo Koho 62 127,278 (1987)
- Preparation of phosphatidylcholine derivatives as materials for pharmaceutical microcapsules
- E. Hasegawa, Y. Matsushita, K. Ejima and H. Tsuchida.The preparation of phosphatidylcholinederivatives useful as materials for the preparation of pharmaceutical microcapsules is described. Japan Kokai Tokkyo Koho 62 205,092 (1987)
- Thermal recording materials with long shelf-life
- Y. Fujita and S. Tatsuta.[Fuji Photo Film Co., Ltd.]The materials have a recording layercontaining microcapsules of a colour-forming agent together with an organic solvent, a colour-developer and a colouration promoter. They had a long shelf-life with clear-background high-density images with no yellowish discolouration even after storage at high temperature and/or high humidity. Japan Kokai Tokkyo Koho 62 216,787 (1987)
- Immunosensor and its manufacture and use in clinical analysis
- M. Nakanishi and M. Nakamura. [Kuraray Co., Ltd.]An immunosensor consists of a FETwhose gate area is coated with liposomes containing a receptor for an immunological substance. It was used in the detection of anti-TNP monoclonal antibody IgG .
- Japan Kokai Tokkyo Koho 62 232,556 (1987)
- Process for the preparation of 3-[(acrylamidoalkyl)ammonio]-2-hydrozypropyl phosphates in forming phosphorus liposomes
- J. Wakatsuki, T. Kato and T. Kurodaki.[Kao Corp.]The preparation of the title phosphates,which are useful as acrylic monomers in the production of phospholipid liposomes, is described. Japan Kokai Tokkyo Koho 62 249,994 (1987)
- Hydrophobic and porous micropowders for the control of pharmaceutical odour
- M. Sawaguchi, T. Tomita, Y. Moroishi and K. Noda.[Nitto Electric Industrial Co., Ltd.]The odour of pharmaceuticals such as /-menthol can be masked by using hydrophobic porous microparticles as the drug carriers. Japan Kokai Tokkyo Koho 62 252,718 (1987)
- Complement lysis tests using sensitized human erythrocytes to prevent nonspecific hemolysis Y. Inui, N. Kanno, Y. Morisei, R. Yamana and Y. Kamimura.[Green Cross Corp.]Acomplement hemolysis test uses sensitized human type 0 erythrocytes to prevent nonspecific hemolysis.
- Japan Kokai Tokkyo Koho 62 257,060 (1987)
- Microencapsulated electrophotographic toner
- J. Machida, S. Koori, H. Kameda and H. Kato.[Minolta Camera Co., Ltd.]The tonercapsules are produced by encapsulating fine particles which have been surface treated with resin to give a shell of polyurea or polyurethane, thus preventing leakage of core material. The developer containing the microcapsules showed excellent chargeability, antiblocking property, and printability. Japan Kokai Tokkyo Koho 62 262,056 (1987)
- Optical recording medium with fluorescent material-containing microcapsules
- S. Igarashi, M. Hiraoka, H. Imataki, Y. Ogawa, H. Yoshino and S. Kato.[Canon K. K.]Anoptical recording medium with high recording sensitivity toward a low powered laser beam and is useful for recording on cash cards, credit cards etc. has a recording layer containing pressure-sensitive microcapsules of a fluorescent material in a wall material which conceals the core material. Japan Kokai Tokkyo Koho 62 280,082 (1987)
- Optical recording medium with colorant-containing microcapsules
- S. Igarashi, M. Hiraoka, H. Imataki, Y. Ogawa, H. Yashino and S. Kato. [Canon K.K.]Anoptical recording medium with high recording sensitivity toward slow-powered laser beam and useful for recording on cash cards, credit cards etc. has a recording layer containing pressure-sensitive microcapsules of a colourant and optically opaque walls.
- Japan Kokai Tokkyo Koho 62 280,083 (1987)
- Pressure-fixable magnetic encapsulated electrophotographic toner
- A. Okuma. [Matsushita Electric Industrial Co., Ltd.]A magnetic encapsulated toner containsa binder resin, a magnetic fluid and a black pigment in the core. Adhesion to the developer sleeve and pressure roller is minimized, magnetic flux distribution improved, and high density images are obtained.
- Japan Kokai Tokkyo Koho 62 280,759 (1987)
- Pressure-fixable magnetic encapsulated toner
- A. Okuma. [Matsushita Electric Industrial Co., Ltd.]A magnetic encapsulated toner showingexcellent low-pressure fixability contains a lipophilic magnetic fluid or semisolid, and a rubber, in the core of the microcapsules.
- Japan Kokai Tokkyo Koho 62 280,760 (1987)
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- Thermochromic dye-containing temperature-sensitive colored foils and powder
- R. Nagano.[Oike and Co., Ltd.]The foil is a coloured resin film containing a microen-capsulated reversible thermochromic dye, and coated with a layer of protective resin. Japan Kokai Tokkyo Koho 62 288,681 (1987)
- Preparation of polymerizable to-imidazol-1-ylalkadienoates and their use for preparation of polymerized liposome-embedded heme-imidazole complexes K. Ejima, E. Hasegawa, Y. Matsushita, H. Nishide and H. Tsuchida. The title compounds wereprepared, mixed with a heme and a polyrnerizable phospholipid then polymerized to produce liposome-embedded heme-imidazole complexes which are useful as artificial blood. Japan Kokai Tokkyo Koho 62 292,762 (1987)
- Microencapsulation of dyes, pharmaceuticals, agrochemicals, and other with yeast cells M. Ishiguro. [Mitsubishi Paper Mills, Ltd.]The dyes, pharmaceuticals etc. are mixed with ayeast cell suspension and microencapsulated in an amino resin.
- Japan Kokai Tokkyo Koho 62 294,079 (1987)
- Pressure-sensitive recording sheets containing a pentamethyleneimine derivative polymer
- M. Sano and Y. Saeki. [Fuji Photo Film Co., Ltd.]Pressure-sensitive recording sheetscontaining a colour former layer of microencapsulated colourless colour former provide high quality images with good lightfastness and prevent unnecessary colouration.
- Japan Kokai Tokkyo Koho 62 297,175 (1987)
- Microcapsules containing magnetic particles as carriers of biologically-active substances
- H. Tsunoda. [Research Development Corp. of Japan.]Microencapsulated ultramicro mag-netic particles which may be used as pharmaceutical carriers were prepared. Bovine serum albumin etc. were bound to the carriers, and biological activities studied.
- Japan Kokai Tokkyo Koho 63 05,019 (1988)
- Optical recording materials having a dispersion of a thermoplastic resin microcapsule containing a low boiling point compound in an elastomer
- K. Ito. [Alps Electric Co., Ltd.]The optical recording materials were prepared by dispersinga thermoplastic resin microcapsule containing a low boiling-point compound in a rubber-like elastomer, in which the microcapsules are expansion-deformed by heating and the deformed state is maintained after cooling.
- Japan Kokai Tokkyo Koho 63 15,791 (1988)
- Electrophotographic developers comprising a toner and microencapsulated offset preventing agent
- Y. Katagiri, N. Saruwatari, K. Ko, T. Watanuki and T. Kashiwagawa. [Fujitsu Ltd.]Adeveloper with good anti-offset and anti-filming properties contains microcapsules with a core material of an offset preventing agent which prevents toners adhering to fixing devices, and a wall material of hard resin with a high softening point.
- Japan Kokai Tokkyo Koho 63 18,363 (1988)
- Microencapsulated toner with graft copolymer for electrophotography
- N. Hosoi. [Fuji Photo Film Co., Ltd.]A microencapsulated toner contains a colourant and abinder in a resin shell. It shows improved stability of positive triboelectricity, fluidity, storage stability, and fixability.
- Japan Kokai Tokkyo Koho 63 19,661 (1988)
- Microencapsulated electrophotographic toner
- K. Satsuta and Y. Lida. [Toyo Ink Mfg Co., Ltd.]A process for the manufacture of amicroencapsulated toner for electrophotographic development is described.
- Japan Kokai Tokkyo Koho 63 25,663 (1988)
- Oil droplet-microencapsulated photochromic compositions
- M. Toriuchi, K. Endo and S. Hone. [Fuji Photo Film Co., Ltd.]A photochromic compoundmicroencapsulated in oil droplets may be used for filters, displays, recording materials and functional coatings.
- Japan Kokai Tokkyo Koho 63 27,586 (1988)
- Microencapsulated toner for electrophotography
- J. Machida and S. Kori. [Minolta Camera Co., Ltd.]A toner with improved fixingcharacteristics was prepared.
- Japan Kokai Tokkyo Koho 63 32,559 (1988)
- Encapsulated toner for electrophotography
- J. Machida and S. Kori. [Minolta Camera Co., Ltd.]The preparation of a toner whichprovides good pressure-fixing without adhesion and offset is described.
- Thermochromic caloric exposure indicator from encapsulated nucleophilic compound and color change compound
- Y. Yabuki, K. Sato and M. Tsukase. [Fuji Photo Film Co., Ltd.]A thermochromic caloricexposure indicator consisting of a compound capable of changing colour through a reaction with a neucleophilic compound and such a compound, one or both of which is microencapsulated, is suited for use in monitoring deterioration of heat-sensitive products.
- Japan Kokai Tokkyo Koho 63 35,684 (1988)
- Multicolor thermal recording material containing microencapsulated diazo compound
- S. Washisu, T. Usami, S. Tatsuta and J. Yamaguchi. [Fuji Photo Film Co., Ltd.]Themicroencapsulated material, which lessens fogging and sticking, has at least one colour-forming layer capable of producing different colours on both sides of a transparent support.
- Japan Kokai Tokkyo Koho 63 45,084 (1988)
- Metal acetylide-containing microcapsules for photothermographic material
- S. Ishikawa and K. Sato. [Fuji Photo Film Co., Ltd.]Microcapsules showing improvedstorage stability of the acetylide compound are useful for photothermographic materials, photo-graphic developers, adhesives, detergents, etc.
- Japan Kokai Tokkyo Koho 63 51,935 (1988)
- Colorfast microcapsule-containing recording sheet
- M. Sano, K. Matsuoka, M. Takashima and Y. Saeki. [Fuji Photo Film Co., Ltd.]Amicroencapsulated recording sheet is based on a colour reaction between a colourless electron-donating colourant and an electron-accepting colour-developer. The microcapsule layer of the recording sheet shows improved lightfastness.
- Japan Kokai Tokkyo Koho 63 60,785 (1988)
- Thermal recording label
- T. Hayashi and K. Nakamura. [Fuji Photo Film Co., Ltd.]A thermal recording label, inwhich the flexographic ink does not smudge the thermal head, consists of a support on one side of which is a thermosensitive colour-forming layer containing a microencapsulated diazo compound, and on the other a release paper.
- Japan Kokai Tokkyo Koho 63 60,787 (1988)
- Heat- and pressure-developable photopolymerizing photoimaging materials and process
- K. Sato. [Nippon Telegraph and Telephone Public Corp.]The material is prepared bycoating a substrate with microcapsules containing a dye, a photopolymerizing monomer and a photopolymerization initiator. The process includes imagewise exposure to photocure the micro-capsules, followed by heat- or pressure-development.
- Japan Kokai Tokkyo Koho 63 65,436 (1988)
- Microencapsulated base for heat-developable photographic materials
- F. Kakimi. [Fuji Photo Film Co., Ltd.]When a base such as a guanidine derivative ismicroencapsulated, its long term stability is improved and it can provide a heat-developable photographic material with improved storage stability.
- Japan Kokai Tokkyo Koho 63 65,946 (1988)
- Preparation of liposomes containing hemoglobins as artificial blood
- K. Suzuki and Y. Miyauchi.[Terumo Corp.]Liposomes containing Hb solution and VitaminC were used as artificial erythrocytes.
- Japan Kokai Tokkyo Koho 63 66,117 (1988)
- Cell identification and quantification with monoclonal antibodies for clinical diagnosis
- M. Karube.[Research Development Corp. of Japan.]A specific antigen or receptor on a givencell species is reacted with labeled monoclonal antibodies and the luminescence or fluorescence formed is detected.
- Japan Kokai Tokkyo Koko 63 66,465 (1988)
- Recording sheet based on a leuco dye and an electron acceptor developer
- M. Sano, K. Matsuoka, M. Takashima and Y. Saeki. [Fuji Photo Film Co., Ltd.]Amicroencapsulated pressure-sensitive recording material had excellent colour rendition even after exposure to a xenon lamp.
- Japan Kokai Tokkyo Koho 63 67,179 (1988)
- Recording sheets comprising colorless electron-donating dye microcapsules
- M. Sano and Y. Saeki. [Fuji Photo Film Co., Ltd.]Pressure-sensitive copying paper coatedwith microcapsules containing aminophenylindolylazaphthalide derivatives had an improved light-resistance and gave clear images even after standing under a fluorescent lamp.
- Japan Kokai Tokkyo Koho 63 67,180 (1988)
- Photosensitive material containing microcapsules for photothermography
- F. Kakimi.[Fuji Photo Film Co., Ltd.]The microencapsulated material consists of aphotosensitive layer containing silver halide, a reducing agent and a polymerizable compound. The material shows improved microcapsule breaking characteristics so that stains can be prevented. Japan Kokai Tokkyo Koho 63 81,336 (1988)
- Electrostatographic microencapsulated toner particles with improved chargeability
- S. Kori, J. Machida and M. Yasuno. [Minolta Camera Co., Ltd.]Microencapsulated tonerparticles which have depressed areas on parts of their surfaces have improved chargeability and cleanability from electrophotographic plates compared with those particles which have spherical surfaces.
- Japan Kokai Tokkyo Koho 63 89,867 (1988)
- Cellulose composite microparticle manufacture
- S. Okuma, K. Yamagishi, M. Hara, K. Suzuki and T. Yamamoto.[Kanebo Ltd.; Kanebo Rayon
- K.K.]Spherical cellulose particles of diameter 18 ti and containing 92% carbon black are useful in cosmetics, lubricants and chromatography. Japan Kokai Tokkyo Koho 63 90,502 (1988)
- Cellulose microparticle manufacture from dissolving pulp S. Okuma, K. Yamagishi, M. Hara, K. Suzuki and T. Yamamoto.[Kanebo Ltd., Kanebo Rayon K.K.]Cellulose microspheres, useful in cosmetics, food, etc. have an average diameter of 18–6 pi, crystallinity 28% and water absorption 290%. Japan Kokai Tokkyo Koho 63 90,503 (1988)
- Cellulose microsphere manufacture from dissolving pulp S. Okuma, K. Yamagishi, M. Hara, K. Suzuki and T. Yamamoto.[Kanebo Ltd.; Kanebo Rayon K.K.]Cellulose microspheres with average diameter 28.2 it, crystallinity 26% and water absorption 320% were prepared for use in food, cosmetics, etc. Japan Kokai Tokkyo Koho 63 90,504 (1988)
- Cellulose-hollow polymer composite microparticle manufacture S. Okuma, K. Yamagishi, M. Hara, K. Suzuki and T. Yamamoto.[Kanebo Ltd.; Kanebo Rayon K.K.]Spherical cellulose particles diameter 82jz and containing 92% hollow resin useful for cosmetics, were prepared.
- Japan Kokai Tokkyo Koho 63 92,601 (1988)
- Pilling-resistant polyester fibers
- T. Mita.[Teijin Ltd.]Polyester fibres are blended with porous microcapsules to improvetheir pilling resistance.
- Japan Kokai Tokkyo Koho 63 92,718 (1988) Solvent- and heat-resistant microcapsules M. Moriwaki, K. Eto and H. Sekihara.[Toppan Moore Co., Ltd.]The microcapsules wereprepared from hydrolyzed styrene-maleic anhydride copolymer and methylolurea or methylolmelamine. Japan Kokai Tokkyo Koho 63 97,223 (1988)
- Laser recording method using microencapsulated toners T. Ando and T. Endo.[Copal Electronics Co., Ltd.; Copal Co., Ltd.; Sanken K.K.]Therecording method consists of spreading the microencapsulated toner particles on a recording sheet, rupturing the microcapsules with a semiconductor laser and removing the unbroken particles. Japan Kokai Tokkyo Koho 63 98,492 (1988)
- Color indicators for temperature of frozen foods and other materials
- H. Tsutsumi, K. Kamata, M. Kawamoto, H. Akahori, M. Yaegashi and M. Asano.[Mitsui
- Toatsu Chemicals Inc.]The indicators consist of a strip carrying layers of microencapsulated oily substances, a temperature control membrane containing resins and a compound which reacts with the oily substances in the microcapsules.
- Japan Kokai Tokkyo Koho 63 98,530 (1988)
- Color indicators for material temperature of frozen foods etc.
- H. Tsutsumi, K. Kamata, M. Kawamoto, H. Akahori, M. Yaegashi and M. Asano.[Mitsui
- Toatsu Chemicals, Inc.]The indicator consists of a strip layered with microcapsules containing oily substances, a temperature control membrane of copolymers and a compound that reacts with the oily substances in the microcapsules.
- Japan Kokai Tokkyo Koho 63 98,531 (1988)
- Color indicator for material temperature of frozen foods, etc.
- H. Tsutsumi, K. Kamata, M. Kawamoto, H. Akahori, M. Yaegashi and M. Asano.[Mitsui
- Toatsu Chemicals, Inc.]The indicator consists of a strip carrying layers of microencapsulated oily substances, a temperature control membrane containing copolymers and a compound that reacts with the microencapsulated oily substances.
- Japan Kokai Tokkyo Koho 63 98,532 (1988)
- Porous spherical cellulose particle manufacture
- S. Okuma, K. Yamagishi, M. Hara, K. Suzuki and T. Yamamoto.[Kanebo Ltd.; Kanebo Rayon
- K.K.]Porous spherical cellulose particles, with controlled exclusion limit, useful for chromatography were prepared.
- Japan Kokai Tokkyo Koho 63 101,437 (1988)
- Light reflection-preventive colored layer for heat-developable photographic material
- T. Watanabe. [Fuji Photo Film Co., Ltd.]A microencapsulated photosensitive unit carries acoloured layer on one side of the support. This prevents multiple light reflections during imagewise exposure.
- Japan Kokai Tokkyo Koho 63 101,842 (1988)
- Manufacture of black pigments in microbeads from acrylonitrile polymers
- Y. Furuya, Y. Nishihara and T. Yasunaga.[Mitsubishi Rayon Co., Ltd.]The preparation ofmicrobeads of average diameter 14 /4, useful as black pigments for coatings and plastics, is described. Japan Kokai Tokkyo Koho 63 105,067 (1988)
- Electrophotographic microcapsale toner for pressure fixing
- T. Nakahara, K. Tomyama and S. Doi. [Canon K.K.] A microcapsule toner which is easilycleanable, does not deposit on the cleaner blade, does not stain and has good fixing properties, has fine particles coated with polymer in the core of the microcapsules.
- Japan Kokai Tokkyo Koho 63 113,557 (1988)
- Semipermeable microcapsules and their manufacture
- M. Takizawa and T. Satsuki.[Lion Corp.]Microcapsules with good enzyme-releaseproperty in water containing active core materials, polymers, salts, polyols and/or surfactants. Japan Kokai Tokkyo Koho 63 137,746 (1988)
- Microencapsulated hot-melt adhesives
- S. Isoi and M. Okuda. [Kawashima Co., Ltd.]Microcapsules containing adhesives andhardeners separately within the core were used to bond utensils such as spoons to handles by pressure and heat.
- Japan Kokai Tokkyo Koho 63 150,367 (1988)
- Amine-formaldehyde copolymers for slow-release microcapsules
- K. Uko, H. Yamada and K. Ono. [Toppan Moore Co., Ltd.]Slow-release microcapsules areprepared from copolymers of formaldehyde and guanatnine, melamine, urea or their derivatives with volatile hydrophobic liquid core materials.
- Japan Kokai Tokkyo Koho 63 178,840 (1988)
PCT
- Polyhydrozy compounds in the preservation of biological materials such as hemoglobin, erythrocytes, liposomes and cells
- J. A. Hayward and D. S. Johnston.[Biocompatibles Ltd.]An aqueous solution of apolyhydroxy compound is contacted with a material having a water-dependent structure and then the water removed to effect preservation. This was effective even in samples stored in the dried state for at least 3 months.
- PCT International Application 87 05,300 (1987)
UK
- Heat sensitive diazo recording material
- J. Yamaguchi and S. Ishige. [Fuji Photo Film Co., Ltd.]A microencapsulated compositionwhich produces a bright red permanent image has good storage stability.
- UK Patent Application 2,196,141 (1988)
- Light-sensitive material containing silver halide reducing agent and polymerizable compound
- Y. Oka. [Fuji Photo Film Co., Ltd.]A microencapsulated light-sensitive photographicmaterial which contains a silver salt, a reducing agent, a polymerizable compound and a salt provides images with improved clarity and high contrast.
- UK Patent Application 2,196,749 (1988)
- Odoriferous plastic packaging material containing microencapsulated additives
- J. Rogers. [Acrathane Products Ltd.]The material consists of two plastic films or sheets withmicroencapsulated fragrance, odour inhibitor or animal repellent bonded between them, when the sheets are separated, some of the microcapsules are broken, releasing their contents.
- UK Patent Application 2,198,062 (1988)
- Recording material with adhesive
- J. Sakai, K. Suzuki and S. Higashiyama. [Brother Industries, Ltd.]A recording mediumconsists of a base sheet supporting a colour developer which reacts with a dye precursor to develop colour, and an adhesive which may be contained in microcapsules crushable under pressure whereby the recording medium may be adhered to any suitable body.
- UK Patent Application 2,198,857 (1988)
USA
- Heat-sensitive recording material containing microencapsulated leuco dye
- T. Usami, T. Tanaka and S. Yoshida.[Fuji Photo Film Co., Ltd.]A heat-sensitive recordingmaterial consists of microcapsules containing a leuco dye in the cores and a colour developer capable of reacting with the leuco dye to produce a colour and located outside the microcapsules. The material shows improved prerecording shelf life and provides recorded images of improved stability. US Patent 4,682,194 (1987)
- Preparation of hemolytic viral particles containing antibodies to analyte for cell lysis immunoassay
- A. H. Huang, B. Heath and F. J. Martin.[Cooper-Lipotech, Inc.]An immunoassay systemutilizes haemolytic virus particles carrying nonviral analyte-binding molecules which interact specifically with foreign binding molecules anchored to target cells to produce efficient target cell lysis. US Patent 4,731,324 (1988)
- Gelcores for delivery of pharmacologically active materials
- W. B. Geho and J. R. Lau. [Technology Unlimited, Inc.]Gelcores are prepared by liposomeencapsulation of a drug in a sol. Gel-filled, drug-containing liposomes are more stable than liposomes, and the gel core prevents drug migration from the liposomes.
- US Patent 4,740,375 (1988)
- Printing sheets having microcapsules containing leuco dye and a chlorinated a-olefin solvent
- R. A. Fetters.[Mead Corp.]A chlorinated a-olefin included as a solvent for a leuco dye inmicrocapsules used to provide colour images prevents the formation of unpleasant odours when the microcapsules are ruptured during colour development.
- US Patent 4,743,579 (1988)
- Photopolymerizable material containing microcapsules in surface layer
- D. E. Keys, W. J. Nebe and T. R. Fields. [du Pont de Nemours, E. I., and Co.]A storage-stable photopolymerizable material which can be wound in a roll and used as a photoresist consists of a support and a microencapsulated photopolymerizable composition layer.
- US Patent 4,755,446 (1988)
- Waterproof blasting agent in microcapsule form
- W. B. Sudweeks.[IRECO Inc.]The explosive material is composed of separate discretedroplets of a solution of inorganic oxidizer salt microencapsulated in a thin coating of fuel. US Patent 4,758,289 (1988)