Lead Patents (Class 424/652)
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Publication number: 20130039953Abstract: A method for treating a surface with a therapeutic agent is disclosed. The method comprises precipitating a therapeutic agent from a hydrophilic polymeric base layer with which the therapeutic agent has been complexed, to form a layer comprising microparticles of the therapeutic agent on the hydrophilic polymeric base layer, the hydrophilic polymeric base layer being grafted to the surface. Devices comprising a surface having a hydrophilic polymeric base layer comprising a hydrophilic polymer grafted to the surface and a layer comprising microparticles of a therapeutic agent disposed on and complexed with the hydrophilic polymeric base layer are also disclosed.Type: ApplicationFiled: July 6, 2012Publication date: February 14, 2013Applicant: Covalon TechnologiesInventors: Vyacheslav Dudnyk, Valerio DiTizio
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Publication number: 20120251450Abstract: Of the many compositions and methods provided herein, one composition includes a nanoparticle having a first oxide of a first metal and a dopant that includes an ion or an atom of a second metal. A method includes a method comprising providing a plurality of nanoparticles comprising a first oxide of a first metal and a dopant that comprises an ion or an atom of a second metal; providing a diseased cell and a healthy cell; contacting the diseased cell and the healthy cell with the nanoparticle; and allowing the nanoparticle to preferentially associate with the diseased cell.Type: ApplicationFiled: April 4, 2011Publication date: October 4, 2012Inventors: Alex Punnoose, Denise Wingett
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Publication number: 20110280958Abstract: The present invention relates to active compound combinations, in particular within a fungicide composition, which comprises (A) a dithiino-tetracarboximide of formula (I) and a metal salt (B). Moreover, the invention relates to a method for curatively or preventively controlling the phytopathogenic fungi of plants or crops, to the use of a combination according to the invention for the treatment of seed, to a method for protecting a seed and not at least to the treated seed. In particular the combinations according to the invention are useful to obtain plants with greener leaf color.Type: ApplicationFiled: April 14, 2011Publication date: November 17, 2011Applicant: Bayer CropScience AGInventors: Thomas Seitz, Ulrike Wachendorff-Neumann
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Patent number: 7879367Abstract: The invention relates to a medical implant made of a metallic material. After fulfilling its temporary support function, the implant is degraded by corrosion at a predetermined rate. Negative long-term effects are thus avoided.Type: GrantFiled: July 17, 1998Date of Patent: February 1, 2011Assignees: Alfons Fischer, Jacqueline Hausdorf, Eva HeubleinInventors: Bernd Heublein, Gerd Hausdorf
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Patent number: 7816292Abstract: A glass powder or a glass-ceramic powder is provided that includes multicomponent glasses with at least three elements, where the glass powder or a glass-ceramic powder has a mean particle size of less than 1 ?m. In some embodiments, the mean particle size is less than 0.1 ?m, while in other embodiments the mean particle size is less than 10 nm.Type: GrantFiled: May 25, 2005Date of Patent: October 19, 2010Assignee: Schott AGInventors: Jose Zimmer, Johann Daimer, Matthias Rindt, Susanne Kessler, Joern Besinger, Karine Seneschal-Merz
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Publication number: 20100247611Abstract: The present disclosure describes compositions operable for releasing nitric oxide under photochemical conditions. The compositions include a titanium dioxide nanomaterial and a nitric oxide-releasing compound deposited on the titanium dioxide nanomaterial that is operable to release nitric oxide under photochemical conditions. Titanium dioxide nanomaterials include, for example, titanium dioxide nanotubes. To facilitate the photochemical release of nitric oxide, some embodiments of the compositions further include a semiconductor that is deposited on the titanium dioxide nanotubes. Both the semiconductor and the nitric oxide-releasing compound may be deposited on the interior surface, exterior surface, or both of the titanium dioxide nanotubes. A polymer may wrap the titanium dioxide nanotubes to protect the nitric oxide-releasing compounds from moisture. Also disclosed herein are methods for producing such compositions and medical devices obtained therefrom.Type: ApplicationFiled: March 30, 2010Publication date: September 30, 2010Applicant: Board of Regents, The University of Texas SystemInventors: Kenneth J. Balkus, JR., Chalita Ratanatawanate
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Publication number: 20100189806Abstract: Methods of growing and harvesting multiple species of phytoplankton are disclosed herein. The method generally includes four steps, namely: (1) collecting phytoplankton seawater containing multiple species of naturally-occurring phytoplankton directly from a source of seawater; (2) adding nutrients to the phytoplankton seawater to proliferate the multiple species of naturally-occurring phytoplankton to a predetermined density; (3) separating the multiple species of naturally-occurring phytoplankton from the phytoplankton seawater to form a phytoplankton concentrate; and (4) collecting the phytoplankton concentrate such that the collected phytoplankton of the phytoplankton concentrate remain in a substantially intact cellular state.Type: ApplicationFiled: October 21, 2009Publication date: July 29, 2010Inventors: Margaret Harper, Arturo Ramirez
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Publication number: 20090175957Abstract: A composition is provided which comprises an acidic component, generally fulvic acid, having a molecular weight not exceeding 20,000 Daltons and a low content of the elements aluminium, mercury, cadmium, chromium and lead. The acidic component is preferably carbohydrate derived and preferably using a wet oxidation process.Type: ApplicationFiled: April 26, 2007Publication date: July 9, 2009Applicant: PFEINSMITH S.A. (pty) LTDInventors: Earle John Loxton, Rudolph Johannes Malan, Stefan Coetzee
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Publication number: 20080299222Abstract: Bioactive agrichemical concentrates and compositions having improved bioactivity comprising combinations of acid solutions and conventional bioactive agrichemical actives or formulations.Type: ApplicationFiled: May 19, 2008Publication date: December 4, 2008Inventor: Joseph J. Crudden
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Publication number: 20080292723Abstract: Bioactive agrichemical concentrates and compositions having improved bioactivity comprising metal-acid solutions.Type: ApplicationFiled: May 19, 2008Publication date: November 27, 2008Inventor: Joseph J. Crudden
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Publication number: 20080292721Abstract: Bioactive agrichemical concentrates and compositions having improved bioactivity comprising metal-acid solutions.Type: ApplicationFiled: May 19, 2008Publication date: November 27, 2008Inventor: Joseph J. Crudden
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Publication number: 20080175913Abstract: The present invention relates to wood preservative compositions comprising an effective amount of a pyrethroid compound in combination with an isothiazolone compound, methods and processes for preserving wood using the wood preservative compositions of the invention, and wood comprising the wood preservative compositions of the invention.Type: ApplicationFiled: January 9, 2008Publication date: July 24, 2008Inventors: Jun Zhang, Richard J. Ziobro
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Publication number: 20080118573Abstract: The present invention is directed to a method of treating biofilms by exposure to heavy metals selected from the group comprising metal cations such as manganese, cobalt, nickel, copper, zinc, aluminum, silver, mercury, lead, cadmium and tin; metal oxyanions such as molybdate, tungstate and chromate; and metalloid oxyanions, alone or in combination with antimicrobials. The present invention also includes compositions and methods for preparing or treating medical devices and medications.Type: ApplicationFiled: June 21, 2005Publication date: May 22, 2008Inventors: Joe Jonathan Harrison, Raymond Joseph Turner, Howard Ceri
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Patent number: 7357949Abstract: The invention relates to a microcapsule comprising an inorganic antimicrobial agent coated with a hydrophilic polymer. The hydrophilic polymer is able to absorb sufficient water as to enable the action of the encapsulated antimicrobial agent. These microcapsules are useful to impart antimicrobial activity and can be used in polymer compositions, sprays and coatings. A method of preparing the microcapsule by treatment of the antimicrobial agent with a solution of the hydrophilic polymer is provided. Another embodiment of the invention is a method of preparing the microcapsule by coating of the antimicrobial agent with a polymer precursor followed by treatment with a reactive ingredient. Another embodiment of the invention is a method of preparing the microcapsule by melt compounding the antimicrobial agent with the hydrophilic polymer followed by grinding to the desired particle size. Polymer compositions comprising the microcapsules and a matrix polymer are also provided.Type: GrantFiled: December 21, 2001Date of Patent: April 15, 2008Assignee: Agion Technologies Inc.Inventors: Jeffrey A. Trogolo, Frank C. Rossitto, Edward K. Welch, II
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Patent number: 7354605Abstract: According to the present invention there are provided antimicrobial catheters and other medical devices having controlled release of an antimicrobial metal or metal ion. Specifically, antimicrobial catheters and other medical devices manifest antimicrobial properties as a result of the incorporation therein of antimicrobial microcapsules comprising an inorganic antimicrobial agent and a hydrophilic polymer.Type: GrantFiled: January 20, 2006Date of Patent: April 8, 2008Assignee: Aglon Technologies Inc.Inventors: Jeffrey A. Trogolo, Frank C. Rossitto, Edward K. Welch, II
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Publication number: 20080057136Abstract: The invention relates to antimicrobial compositions that can be used for disinfecting and can be applied in various aspects of the national economy, medicine, and laboratories of all types. The antimicrobial compositions comprise a chelating metal complex compound with a monodentate bidentate or polydentate ligand that exhibits affinity to hydrogen ion, an ionogenic surfactant, and a solvent. The compositions of the invention display antiseptic properties. The antimicrobial compositions are active against Gram-positive and Gram-negative bacteria, fungi, viruses, and spores, and can be applied in a broad temperature interval. Methods of using the compositions of the present invention in the treatment and prevention of diseases caused by a variety of pathogens are further provided.Type: ApplicationFiled: November 11, 2004Publication date: March 6, 2008Applicant: Veckis Industries Ltd.Inventors: Victor S. Polyakov, Valeriy V. Ermilov, Vladimir S. Kuzmin, Oleg I. Lukashov
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Patent number: 7001452Abstract: The present invention relates to a method and a wood preserving composition which is free of poly-aspartic acid and its derivatives and comprises mixtures of a metal compound, complexing agents selected from ethanolamines, polyethylenimine, ammonia or a mixture of these compounds, and a vinyl based polymer selected from poly(vinyl alcohol) (PVA), poly(acrylamide) (PA), poly(N-vinyl pyrrolidone) (PVP) and poly(N-isopropyl acrylamide) (PNIPAM). The resulting metal amine solution can then be used to formulate a variety of metal-based cellulosic material preserving products.Type: GrantFiled: November 11, 2004Date of Patent: February 21, 2006Assignee: Osmose, Inc.Inventors: Jun Zhang, Robert M. Leach, Paul Griffin
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Patent number: 6939566Abstract: Microbicidal formulations are described which are preferably ecologically friendly and non-toxic to mammals, and are highly effective against a broad spectrum of detrimental pathogenic microorganisms. The microbicidal formulation contains complexes having the formula R-M, wherein R is at least one organic chelating moiety and M is at least one metal ion which is microbicidal to at least one microorganism. These complexes can disrupt microorganism activities by penetrating the natural protecting bio-films of such microorganisms through the reaction of the R-group with the organic constituents of these microorganisms while releasing M into their intra-cellular media. Thus, this process exhibits its biocidal activities from the inside-out, contrary to other methods which rely on damaging the protective biofilms.Type: GrantFiled: January 17, 2001Date of Patent: September 6, 2005Inventors: Kareem I. Batarseh, Marwan Al-Kayed
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Patent number: 6881424Abstract: A highly acidic metalated organic acid composition and its preparation. The acidic composition can be prepared by mixing a monovalent or polyvalent cation and an organic acid in the presence of a strong oxyacid, wherein the resultant acidic composition is less corrosive to a ferrous metal than a solution of a mineral acid having the same acidic pH value as that of the acidic composition, and where in the acid composition is more biocidal than a mixture of the organic acid and a metal salt of the organic acid which mixture has the same acid normality value as that of the acidic composition. The acidic composition can be prepared by mixing at least one regenerating acid, at least one metal base, and at least one organic acid, wherein the amount of the regenerating acid is in excess of the equivalent amount of the metal base.Type: GrantFiled: September 5, 2000Date of Patent: April 19, 2005Assignee: Mionix CorporationInventors: Maurice Clarence Kemp, Robert Blaine Lalum, David E. Lewis, Robert H. Carpenter
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Patent number: 6843837Abstract: The present invention relates to a method and a wood preserving composition which comprises mixtures of a metal compound, complexing agents selected from ethanolamines, polyethylenimine, ammonia or a mixture of these compounds, and a vinyl based polymer selected from poly(vinyl alcohol) (PVA), poly(acrylamide) (PA), poly(N-vinyl pyrrolidone) (PVP) and poly(N-isopropyl acrylamide) (PNIPAM). The resulting metal amine solution can then be used to formulate a variety of metal-based cellulosic material preserving products.Type: GrantFiled: July 25, 2003Date of Patent: January 18, 2005Assignee: Osmose, Inc.Inventors: Jun Zhang, Robert Leach, Paul Griffin
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Patent number: 6764692Abstract: A method of treating laminitis in a horse is disclosed, comprising administering to the horse a naturally chelated trace mineral composition; promoting healthy skin, hair and hoof tissue. A method of reducing dietary intake is also disclosed, comprising administering to a horse in need thereof, effective amounts of a naturally chelated trace mineral composition. A method of preparing the chelated trace mineral composition from ocean seabed rock is further disclosed, as well as the chelated trace mineral composition.Type: GrantFiled: August 27, 2002Date of Patent: July 20, 2004Inventor: Carlos Cortelezzi
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Patent number: 6723350Abstract: The invention provides methods and kits to form water swellable gel coatings, preferably lubricious coatings, on substrates, and coated substrates thus formed. The coatings contain one or more antimicrobial metals formed with atomic disorder, together with one or more antimicrobial metals formed with atomic disorder such that the coatings provide an antimicrobial and anti-inflammatory effect when wet. The invention also provides a method to produce metal powders by sputtering a coating onto a moving surface, and then scraping the coating with one or more scrapers to produce the metal powder. The method is particularly useful for producing large amounts of nanocrystalline antimicrobial metal powders formed with atomic disorder, useful in the water swellable gel coatings of this invention.Type: GrantFiled: April 23, 2002Date of Patent: April 20, 2004Assignee: Nucryst Pharmaceuticals Corp.Inventors: Robert Edward Burrell, Hua Qing Yin, Antony George Naylor, Peter Howard Moxham, Walter Carlton Theodore Cholowski, Leonard Salvin Bowlby, David James Field
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Publication number: 20040001894Abstract: This invention relates to topical compositions and a glove for protection against radiation exposure, such as that due to radiation used in medical procedures.Type: ApplicationFiled: June 26, 2002Publication date: January 1, 2004Inventor: Jonathan S. Leibowitz
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Patent number: 6630172Abstract: Disinfectant formulations are described which are preferably ecologically friendly and non-toxic to mammals and plants, and are highly effective against a broad spectrum of detrimental pathogenic microorganisms. The microbicidal formulation contains complexes having at least one metal ion which is microbicidal to at least one microorganism and potassium sodium tartrate in some form. When potassium sodium tartrate is used with these metal ions, it enhances the complex-forming properties of such metal complexes while concurrently increases their efficacy and potency at the same level of metal ion concentrations. These microbicidal formulations can be diluted in suitable proportions into aqueous systems to produce the desired dosages for each individual case, depending on the level and the severity of the contamination. The microbicidal formulations can be applied by conventional methods, e.g., spraying, soaking, fogging, impregnation, and the like.Type: GrantFiled: January 22, 2001Date of Patent: October 7, 2003Inventor: Kareem I. Batarseh
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Patent number: 6579541Abstract: The invention relates to a method and composition for destroying or inhibiting proliferation of microbes using oxidative fluorinator compounds. Fluoride salts that do not dissociate completely in aqueous solutions, such as tri- or tetravalent transition metal fluorides, inert gas fluorides, or tri- or tetravalent rare earth fluorides, are effective antimicrobial agents even at levels up to about 20 ppm, when used alone or in conjunction with a strong oxidizer.Type: GrantFiled: March 16, 2001Date of Patent: June 17, 2003Assignee: Marantech Holding, LLCInventor: Marvin S. Antelman
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Patent number: 6544964Abstract: The invention relates to the fixation or separation of ions, particularly of Pb, by per(3,6-anhydro)cylcodextrin derivatives. This can be carried out by contacting the medium containing the ions to be fixed or separated, with a per(3,6-anhydro)cylcodextrin derivative of formula: in which at least one of the R1 represents OCH3, whilst the other R1 can represent OCH3, OH or other groups, for complexing the ions. Preferably, for the fixation of lead, the derivative complies with formula (I) with n=6 and all the R1=OCH3.Type: GrantFiled: March 24, 2000Date of Patent: April 8, 2003Assignee: Commissariat A L'Energie AtomiqueInventors: Cécile Baudin, Bruno Perly, Andrée Gadelle, Jean-Claude Debouzy, Florence Fauvelle
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Patent number: 6541038Abstract: A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing lignin and/or lignin derivatives and a metal, a metal compound, and/or a metal ion and oxidizing and/or macromolecularizing of the lignin and/or lignin derivatives in the wood to fix the metal component in the wood, and wood and woody materials obtained by the treating method. According to the method of the present invention, while effectively utilizing lignins, lignosulfonic acids, or lignosulfonic acid salts, leaching of the metal component can be suppressed to a low level to thereby retain the effects due to the incorporation of the metal components for a prolonged period.Type: GrantFiled: May 25, 2000Date of Patent: April 1, 2003Assignee: SDS Biotech K.K.Inventors: Keijitsu Tanaka, Hirobumi Aoki, Takashi Echigo
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Patent number: 6521265Abstract: A method of arresting the flow of blood and other protein containing body fluids flowing from an open wound and for promoting wound healing. In the method, a substantially anhydrous compound of a salt ferrate is provided for a unique use which, when hydrated after mixing with a victim's own blood or other aqueous media, produces Fe+++ thereby promoting clotting when applied in a paste form to the wound for a time sufficient to arrest substantial further blood and other body fluid flow from the wound. The compound is formed of a ferrate (VI) salt taken from the group consisting of H, Li, Na, K, Rb, Cs and Fr. However, to decrease or eliminate stinging sensation, the compound may be formed having a ferrate (VI) salt taken from the group consisting of Be, Mg, Ca, Sr, Ba, Ra, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, TI, Pb, Bi, Al, As, NH4 and N(C4H9)4.Type: GrantFiled: June 13, 2000Date of Patent: February 18, 2003Assignee: Biolife, L.L.C.Inventor: James A. Patterson
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Patent number: 6426093Abstract: A biocidal composition composed of a ternary complex of a negatively-charged biocide, a transition metal ion and chelator has synergistic biocidal effects as compared with a composition of each of the components alone. The chelator is preferably a neutral or positively-charged chelator. The ternary complex may be used for killing or inhibiting the growth of living cells.Type: GrantFiled: February 9, 1999Date of Patent: July 30, 2002Assignee: Yissum Research Development Company of the Hebrew University of JerusalemInventors: Mordechai Chevion, Benzhan Zhu, Svetlana Schechtman
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Publication number: 20010021394Abstract: The present invention relates to compositions and methods of induction of a cellular stress response and a protected phenotype using heavy metal ions. The invention relates to methods of protecting a mammal against injury caused by a noxious condition by administering to the mammal a heavy metal in sufficient quantity and under appropriate conditions to induce a sufficient cellular stress response to provide protection (partial or complete) against injury caused by a noxious condition. The invention also relates to methods of inducing a cellular stress response in a mammal by administering a heavy metal in sufficient quantity and under appropriate conditions to induce a cellular stress response to protect the mammal against injury caused by a noxious condition.Type: ApplicationFiled: January 11, 2001Publication date: September 13, 2001Inventor: George A. Perdrizet
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Patent number: 6242009Abstract: Microbicidal formulations are described which are preferably ecologically friendly and non-toxic to mammals, and are highly effective against a broad spectrum of detrimental pathogenic microorganisms. The microbicidal formulation contains complexes having the formula R-M, wherein R is at least one organic chelating moiety and M is at least one metal ion which is microbicidal to at least one microorganism. These complexes can disrupt microorganism activities by penetrating the natural protecting bio-films of such microorganisms through the reaction of the R-group with the organic constituents of these microorganisms while releasing M into their intra-cellular media. Thus, this process exhibits its biocidal activities from the inside-out, contrary to other methods which rely on damaging the protective biofilms.Type: GrantFiled: April 20, 1999Date of Patent: June 5, 2001Inventors: Kareem I. Batarseh, Marwan Al-Kayed
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Patent number: 6132777Abstract: The present invention discloses methods for 1) preventing and/or mitigating microbiologically influenced corrosion (MIC) and 2) controlling and/or reducing the growth of at least one anaerobic, facultative anaerobic, or microaerophilic microorganism, which includes the step of adding or applying a composition containing a borate salt to an area susceptible to MIC and/or growth of anaerobic, facultative anaerobic, or microaerophilic microorganisms, in an effective amount to 1) control and/or reduce the growth or 2) to prevent and/or mitigate the corrosion. The present invention also discloses various means of using the compositions of the present invention which contain borate salts and further sets forth methods for preventing and/or mitigating staining caused, at least in part, by at least one anaerobic, facultative anaerobic, or microaerophilic microorganism.Type: GrantFiled: May 5, 1997Date of Patent: October 17, 2000Assignee: Buckman Laboratories International, Inc.Inventor: Richard W. Lutey
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Patent number: 6071542Abstract: The present invention provides antibacterial zeolite exhibiting a less discoloring action, obtained by treating the surface of zeolite supporting an antibacterial metal with 0.5 to 20% by weight, based on said zeolite, of a composition comprising (A) 100 parts by weight of a hydrolyzable silane and/or oligomer thereof which comprises 10 to 100% by weight of a hydrolyzable silane and/or oligomer thereof having an aryl group; (B) 1 to 1000 parts by weight of an organopolysiloxane having a basic nitrogen atom; and (C) 0.2 to 250 parts by weight of an acid which is soluble in water and which can form a salt with the aforesaid (B). The present antibacterial zeolite exhibits a remarkably less action of discoloring an organic polymer which contains the antibacterial zeolite when the polymer blend is placed under the influence of heat or the sunshine.Type: GrantFiled: November 13, 1997Date of Patent: June 6, 2000Assignee: Kanebo Ltd.Inventors: Takeo Tanimoto, Noboru Watanabe, Kazuhiko Nakashima, Ryuhei Matsuo, Manabu Nagata, Yuji Shingai, Tatsuo Otani
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Patent number: 5916356Abstract: This invention relates to preservative compositions which comprise a biocidal metal compound and an fungicidal compound containing a triazole group. Methods of treating wood with the composition are also described.Type: GrantFiled: June 2, 1997Date of Patent: June 29, 1999Assignee: Hickson International PLCInventors: Gareth Williams, Judith Ann Cornfield, Janet Brown, Neil Patrick Ryan
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Patent number: 5874419Abstract: Polyionic derivatives of cyclodextrins and methods for preparing these derivatives are provided in which a polyionic derivative of cyclodextrin is combined with a growth factor, preferably a heparin binding growth factor. These compositions are of low solubility and are applied directly to the location of a wound. By virtue of the low solubility, the compositions remain in place at the site of application and slowly release growth factor. In an alternative embodiment, the cyclodextrin derivatives are administered in the absence of growth factor and are used to absorb growth factor present in the body at the location of the wound in order to prevent overstimulation of the wound response.Type: GrantFiled: August 4, 1997Date of Patent: February 23, 1999Assignee: The Trustees of the University of PennsylvaniaInventors: Howard C. Herrmann, Elliot Barnathan, Paul B. Weisz
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Patent number: 5679378Abstract: The invention is directed to Dead Sea mud for restoration of hair growth and retardation of hair loss for those suffering from alopecia and a hair therapy method of topically applying to the scalp of a human or other mammal scalp an effective amount of the Dead Sea mud. Dramatic results in overall hair therapy have been obtained by those individuals that have practiced the present method for a relatively short period of time.Type: GrantFiled: November 18, 1996Date of Patent: October 21, 1997Assignee: Olim Industries of Israel, North America, Ltd.Inventor: Raymond Robert Fischer
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Patent number: 5654012Abstract: The invention discloses methods for 1) preventing and/or mitigating microbiologically influenced corrosion (MIC) and 2) controlling and/or reducing the growth of at least one anaerobic, facultative anaerobic, or microaerophilic microorganism, which includes the step of adding or applying a composition containing a borate salt to an area susceptible to MIC and/or growth of anaerobic, facultative anaerobic, or microaerophilic microorganisms, in an effective amount to 1) control and/or reduce the growth or 2) to prevent and/or mitigate the corrosion. The present invention also discloses various means of using the compositions of the present invention which contain borate salts and further sets forth methods for preventing and/or mitigating staining caused, at least in part, by at least one anaerobic, facultative anaerobic, or microaerophilic microorganism.Type: GrantFiled: April 22, 1994Date of Patent: August 5, 1997Assignee: Buckman Laboratories International, Inc.Inventor: Richard W. Lutey
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Patent number: 5618762Abstract: An antibacterial ceramic contains an antibacterial material produced by loading an antibacterial metal such as silver on a calcium ceramic carrier and an inorganic material such as cordierite, and has a bulk density of 0.6-1.2 g/cm.sup.3. An antibacterial ceramic filter contains an antibacterial material produced by loading an antibacterial metal such as silver on a calcium ceramic carrier, an aggregate such as mullite, and a binder such as frit, and has a porosity of 20% or more. The light-weight antibacterial ceramic is suitably applicable to a roof garden or the like. The antibacterial ceramic filter can remove and extirpate various bacteria and suspensions.Type: GrantFiled: May 11, 1995Date of Patent: April 8, 1997Assignees: NGK Insulators, Ltd., NGK Adrec Co. Ltd., Sangi Co. Ltd.Inventors: Hiroshi Shirakawa, Osamu Yamakawa, Hiroaki Nihonmatsu, Kiminori Atsumi
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Patent number: 5413789Abstract: The invention provides a novel antibacterial compound and a process for producing it. Futhermore, the invention provides a novel antibacterial polymer composite comprising a polymer and the antimicrobial compositon.Type: GrantFiled: May 17, 1993Date of Patent: May 9, 1995Assignees: Hagiwara Research Corp., Japan Electronic Materials Corp.Inventors: Zenji Hagiwara, Masao Okubo
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Patent number: 5298252Abstract: A silica gel based heat-resistant and weatherproof antimicrobial composition having an aluminosilicate layer on the surfaces of pores in the silica gel as substituted by silver and an optional antimicrobial metal, said composition containing ion-exchangeable metals that are chiefly an alkali metal and that are present in an amount of up to 2.57 mmol per gram of said composition on an anhydrous basis.Type: GrantFiled: August 29, 1991Date of Patent: March 29, 1994Assignees: Hagiwara Research Corp., Japan Electronic Materials CorporationInventors: Zenji Hagiwara, Masao Okubo
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Patent number: 5244667Abstract: The present invention provides a novel antimicrobial composition and a process for preparing the composition which composition is useful as antimicrobial and/or bactericidal material. The antimicrobial composition of the invention comprises silica gel and an antimicrobial coat of aluminosilicate on the surface of the silica gel, said composition having a pore volume of at least 0.3 cm.sup.3 /g and a specific surface area of at least 100 m.sup.2 /g. The aluminosilicate coat consists of either partial or complete substitution of ion-exchangeable metal ion (M) in aluminosilicate solid particles represented by the formulaxM.sub.2/n O.Al.sub.2 O.sub.3.ySiO.sub.2.zH.sub.2 O,wherein x and y represent the numbers of molecules of the metal oxide and silicon dioxide, respectively, M is an ion-exchangeable metal, n is the atomic valence of M, and z is the number of molecules of water.Type: GrantFiled: February 28, 1991Date of Patent: September 14, 1993Assignees: Hagiwara Research Corp., Japan Electronic Materials CorporationInventors: Zenji Hagiwara, Masao Okubo
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Patent number: 5204103Abstract: The invention relates to the use of polysaccharide containing materials in particular vegetable fibres or products derived therefrom originating from Plantago ovata, in particular from the seed husk thereof for the production of preparations for wound treatment. These and similar vegetable fibres or products derived therefrom may be combined with another active substance chosen from the group comprising proteolytic enzymes, antiseptic agents, growth stimulators and electrolytes.Type: GrantFiled: August 29, 1991Date of Patent: April 20, 1993Assignee: Pharmalett International B.V.Inventors: Wiete Westerhof, Jacob Verschoor
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Patent number: 5112974Abstract: This invention concerns a coordination complex or salt thereof which is spectroscopically or photoactively determinable when bound to DNA having the formula ##STR1## wherein M is a suitable transition metal and each of R.sub.1, R.sub.2 and R.sub.3 is ethylenediamine, bipyridine, phenanthroline, diazafluorene-9-one or phenanthrenequinonediimine. In the complex, R.sub.1, R.sub.2 and R.sub.3 are bound to M by coordination bonds and R.sub.1 and R.sub.2 may be the same or different and both are different from R.sub.3. In the preferred embodiments, the invention concerns complexes of ruthenium(Ru) or rhodium(Rh) wherein R.sub.1 and R.sub.2 are the same. The invention also concerns the complex ##STR2## wherein M is Ru or Rh and R is 9-10-phenanthrenequinonediimine or 5-nitrophenanthroline.Type: GrantFiled: November 7, 1988Date of Patent: May 12, 1992Assignee: The Trustees of Columbia University in the City of New YorkInventor: Jacqueline K. Barton