Patents Examined by Virginia B. Caress
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Patent number: 5032677Abstract: A class of fluorescent rare earth chelates and the ligands upon which they are based whose molecular structure incorporates a plurality of substituted arylpyridine diacid units attached to a central template structure is disclosed. These ligands function as efficient energy transfer groups in fluorescent tagging reagents and tracers.Type: GrantFiled: November 6, 1987Date of Patent: July 16, 1991Assignee: Baxter International Inc.Inventors: Ron L. Hale, Dennis W. Solas
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Patent number: 4961872Abstract: A calcium hypochlorite tablet useful as a toilet bowl cleaner, said tablet being prepared by compressing a dry mixture of granular calcium hypochlorite and a finely divided water-insoluble resin having a molecular weight of between about 10,000 to about 1,000,000, which resin is inert to calcium hypochlorite and which has good cold flow characterisitics, said resin comprising from about 10 to about 50% by weight, based on the total weight of the composition.Type: GrantFiled: April 7, 1989Date of Patent: October 9, 1990Assignee: The Drackett CompanyInventor: Richard G. Sinclair
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Patent number: 4927559Abstract: A bleaching composition is disclosed comprising a peroxygen bleaching compound, capable of yielding hydrogen peroxide in an aqueous media, and one or more bleach precursors wherein the peroxygen bleaching compound and precursor are present in a molar ratio that ranges from 0.1 to 2. It is also important that bleaching occur in an aqueous media held at a pH from 8.5 to 9.4. A combination of sodium perborate and sodium benzoyloxybenzene sulfonate is the preferred bleaching composition.Type: GrantFiled: April 14, 1988Date of Patent: May 22, 1990Assignee: Lever Brothers CompanyInventors: Joshua Schwarz, Christine Accardi
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Patent number: 4923969Abstract: Compounds of the formula I:R.sup.+ [.sup.99m TcNX.sub.4 ].sup.- Iwherein R.sup.+ represents a cation and X represents a halo group, are prepared by reaction with an azide compound in the presence of a hydrohalic acid. The compounds are useful in production of .sup.99m Tc-labelled radio-pharmaceuticals by reaction with ligands and monoclonal antibodies or antibody fractions.Type: GrantFiled: September 7, 1988Date of Patent: May 8, 1990Assignee: The Commonwealth of AustraliaInventors: John Bonnyman, John Baldas
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Patent number: 4923631Abstract: Peracid bleach-stable perfume compositions comprise components which do not contain alkenyl or alkynyl groups and have a PSV of at least about 65% selected from: saturated alcohols, esters, aromatic ketones, lactones, nitriles, ethers, acetals, phenols, hydrocarbons and aromatic nitromusks and mixtures thereof.The perfume compositions are used in bleach and/or detergent compositions containing a peracid bleach.Type: GrantFiled: June 27, 1988Date of Patent: May 8, 1990Assignee: Lever Brothers CompanyInventors: Peter S. Sims, Peter Carter
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Patent number: 4921631Abstract: An extruded particulate body comprises a binder, usually having a melting point in the range 20.degree.-80.degree. C., with particulate bleach activator and particulate water-soluble disintegration aid substantially uniformly distributed throughout the body. The bleach activator is a mixture of a relatively non-surface active bleach activator, preferably tetra-acetylethylene diamine, and a relatively surface active activator, usually a C.sub.6-10 alkanoyloxy benzene sulphonate. The disintegration aid is usually a bleach stabilizor preferably a phosphonic acid or salt thereof. The extruded bodies are for incorporation into a particulate detergent formulation which contains a peroxy bleach component.Type: GrantFiled: May 12, 1988Date of Patent: May 1, 1990Assignee: Warwick International LimitedInventors: Anthony J. Gradwell, John D. Withenshaw
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Patent number: 4919842Abstract: A bleaching composition comprising a partially saturated carrier and a bleaching agent prepared by first mixing the dry carrier with the dry bleaching agent and then adding water while continuing mixing to produce a moist powder. This powder is used in a tumbler with at least partially non-synthetic dyed fabrics to dry bleach or fade the dye from the fabrics. Specifically, the bleaching composition is a mix of potassium permanganate as the bleaching agent and diatomaceous earth as the carrier and is tumbled with the fabric to remove the dye from the fabric. The tumbling causes repeated contact with the bleaching agent and removes the dye in the fabric.Type: GrantFiled: February 1, 1989Date of Patent: April 24, 1990Inventors: Glen A. Dickson, Donnie R. Gray
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Patent number: 4920204Abstract: Ceric hydrocarbyloxy nitrates having the general formula: ##STR1## are obtained by reaction of ceric ammonium nitrate with x moles of ammonia and an aliphatic, cycloaliphatic or aromatic alcohol having from two to twenty carbon atoms, and are useful in the preparation of ceric hydrocarbyl oxides difficult or expensive of access by other routes, and in synthesis of other organic ceric compounds.Type: GrantFiled: November 12, 1987Date of Patent: April 24, 1990Assignee: Rhone-Poulenc Inc.Inventors: Peter S. Gradeff, Fred G. Schreiber, Jean Grosbois, Heiko Mauermann
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Patent number: 4920195Abstract: A fluorescing lanthanide chelate of a lanthanide cation and a compound having the structure ##STR1## where X.sup.3, X.sup.4 and X.sup.5 that may be the same or different, each denotes a substituted ethynyl group, hydrogen, an alkyl group, an aryl group, a hydroxyl group, an alkoxyl group or an amino group, wherein at least one of X.sup.3, X.sup.4 and X.sup.5 denotes a substituted ethynyl group, and Z.sup.2 and Z.sup.6 that may be the same or different, each denotes a chelating group, hydrogen, an alkyl group or an amino group, wherein at least one of Z.sup.2 and Z.sup.6 denotes a chelating group.Type: GrantFiled: January 25, 1988Date of Patent: April 24, 1990Inventors: Jouko Kankare, Harri Takalo, Paavo Pasanen
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Patent number: 4919841Abstract: A process is provided for preparing encapsulated active particles by the steps of: dispersing active materials in molten wax; emulsifying the active/wax dispersion in aqueous surfactant solution for no longer than 4 minutes; quenching the capsules by cooling; and retrieving solidified capsules. The active materials may be selected from chlorine or oxygen bleaching agents, bleach precursors, enzymes, perfumes, fabric softening agents, and surfactants. Optimal capsules are obtainable where a blend of hard and soft waxes are utilized for the coating. The hard and soft waxes are characterized by needle penetration values no higher than 30 mm and no lower than 35 mm, respectively, at 25.degree. C. The resultant capsules have utility for cleaning compositions such as automatic dishwashing detergent formulations.Type: GrantFiled: June 6, 1988Date of Patent: April 24, 1990Assignee: Lever Brothers CompanyInventors: Ahmed Kamel, Lisa C. Hurckes, Monica M. Morelli
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Patent number: 4917814Abstract: An aqueous composition comprising a hypochlorite source in an effective oxidizing concentration and a colorant system containing at least one pigment selected from the group consisting of cobalt aluminate and cobalt chromite.Type: GrantFiled: August 11, 1988Date of Patent: April 17, 1990Assignee: The Drackett CompanyInventors: Debra MacIntyre, Carl Triplett
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Patent number: 4917815Abstract: Aqueous solutions of aromatic percarboxylic acids, such as perbenzoic acids, stabilized with at least an equal amount in parts by weight as the amount of aromatic percarboxylic acid of the corresponding aromatic carboxylic acid and an aqueous solution of perglutaric acid stabilized with hydrogen peroxide and/or a 10% to 60% aqueous solution of hydrogen peroxide.Type: GrantFiled: June 10, 1988Date of Patent: April 17, 1990Assignee: Sterling Drug Inc.Inventors: Wolfgang Beilfuss, Karl-Heinz Diehl
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Patent number: 4917811Abstract: Dry, granular bleach compositions comprising an organic peroxycarboxylic acid as the active bleaching agent are obtained by cogranulating the acid with a strongly alkaline, hydratable inorganic or organic salt.These cogranulates show a reduced tendency to decompose or detonate. A typical cogranulate is made from diperoxydodecanedioic acid and dibasic sodium orthophosphate with seven moles of water of hydration.The cogranulates are useful as bleach ingredients in detergent and cleaning compositions.Type: GrantFiled: January 3, 1989Date of Patent: April 17, 1990Assignee: Lever Brothers CompanyInventors: Jeffrey N. Foster, William M. Karpusiewicz, Charles F. Irwin, Hien T. Pham, Michael P. Aronson
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Patent number: 4915863Abstract: A bleaching composition comprises (a) a peroxide and (b) an organic peracid precursor having at least one group selected from (b-1) and (b-2) and then further comprises a detergent component(s).Type: GrantFiled: August 8, 1988Date of Patent: April 10, 1990Assignee: Kao CorporationInventors: Muneo Aoyagi, Kazuhiro Takanashi, Masaaki Yamamura, Moriyasu Murata, Hiroyuki Yamada, Hiroyuki Araki, Takanori Fukumoto
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Patent number: 4915931Abstract: A Tc-99m mononuclide complex compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group and X is an anion, which is useful as a radioactive diagnostic agent for imaging of brain, cardiac muscle, pancreas or the like.Type: GrantFiled: January 17, 1989Date of Patent: April 10, 1990Assignee: Nihon Medi-Physics Co., Ltd.Inventors: Akira Yokoyama, Yasushi Arano
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Patent number: 4916214Abstract: The invention concerns cationic complexes of Technetium-99m with bidentate ligands (L), including complexes having the formulae [Tc(NO) X L.sub.2 ].sup.+ and [Tc L.sub.3 ].sup.+, which are of interest as heart imaging agents. The ligands are characterized by having the formula Y.sub.2 QZQY.sub.2, where each Q is phosphorus or arsenic, Z is a 2 or 3 carbon atom linking group, and at least one of the groups Y and Z includes at least one --COC--ether group.Type: GrantFiled: October 6, 1988Date of Patent: April 10, 1990Assignee: Amersham International plc.Inventors: Kwok W. Chiu, James D. Kelly, Ian A. Latham, David V. Griffiths, Peter G. Edwards
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Patent number: 4909956Abstract: Chlorine bleaching granules for colored fabrics which minimize fabric dye attach and fabric damage.This is accomplished in a bleaching granule for preventing dye attack of fabrics during bleaching, the granule comprising an alkali metal chloroisocyanurate, a buffering agent, and a mitigating agent, where the active alkalinity of the granule is from about 0 to about -9.Type: GrantFiled: September 9, 1988Date of Patent: March 20, 1990Assignee: Olin CorporationInventor: Ralph S. Webber
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Patent number: 4908068Abstract: There is disclosed a method of removing asbestos or other fibrous material from structures, such as the lagging on pipes, by injecting into the material a treatment liquid which includes a gelling agent and which sets to form a gel of which the fibrous material comprises an integral part, thereby allowing the material to be removed without generating hazardous fibrous dust.Type: GrantFiled: October 26, 1987Date of Patent: March 13, 1990Assignees: Ruth Coneglio, Ben ConeglioInventors: John Pittman, Enid Pittman
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Patent number: 4908151Abstract: The present invention relates to an oxygen absorbent, and more particularly to an oxygen absorbent applicable to preservation of dry foodstuffs and medical drugs and to the rust prevention of metallic articles. Thus, the invention provides an oxygen absorbent comprising:(A.sub.1) an unsaturated fatty acid and/or a fatty oil containing unsaturated fatty acid,(B.sub.1) a transition metal and/or a transition metal compound, and(C.sub.1) a basic substance,and an oxygen absorbent comprising:(A.sub.2) one member or a mixture of two or more members selected from unsaturated fatty acid compounds including unsaturated fatty acids, esters of unsaturated fatty acid and metallic salts of unsaturated fatty acid,(B.sub.2) a basic substance, and(C.sub.2) an adsorbent.Type: GrantFiled: February 12, 1988Date of Patent: March 13, 1990Assignee: Mitsubishi Gas Chemical Co., Inc.Inventors: Yoshiaki Inoue, Toshio Komatsu
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Patent number: 4906399Abstract: An oxygen bleach composition which includes a peroxy bleach component selected from the group consisting of perborates, persulfates, persilicates, perphosphates, and percarbonates, and an organic oxygen bleach activator component capable of reacting with the peroxy bleach component to produce an active peroxy acid, the activator being selected from the group consisting of acetamide functional organosilicon compounds and succinimide functional organosilicon compounds. The activator is a compound selected from the group consisting of compounds having the formulas: ##STR1## wherein R=an alkyl group having 1-4 carbon atoms,R'=an alkyl group having 1-4 carbon atoms,R"=an alkylene group having 1-6 carbon atoms, andn=0, 1, or 2.Type: GrantFiled: August 19, 1988Date of Patent: March 6, 1990Assignee: Dow Corning CorporationInventors: Sunny J. Lo, Terence J. Swihart, Andrew H. Ward