Phase Change (e.g., Melting) Patents (Class 516/926)
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Patent number: 11612161Abstract: The present disclosure provides a dual-purpose mosquito repeller for a mosquito-repellent incense tablet and a mosquito-repellent incense liquid, including: a mosquito repeller body. The mosquito repeller body includes: a mosquito-repellent incense tablet heating unit, configured to heat the mosquito-repellent incense tablet to produce a mosquito-repellent smoke; a mosquito-repellent incense liquid heating unit, configured to heat the mosquito-repellent incense liquid to produce a mosquito-repellent smoke. A level switch for switching the mosquito repeller to a different working state is disposed between the mosquito-repellent incense tablet heating unit and the mosquito-repellent incense liquid heating unit. Each level of the level switch corresponds to one working state.Type: GrantFiled: May 31, 2022Date of Patent: March 28, 2023Assignee: ShenZhen Weiguantong Industry Co., Ltd.Inventor: Mainan Chen
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Patent number: 7470726Abstract: A method for transiently and controllably enhancing the adhesion of a hydrogel composition to select substrates for facilitating the handling of the hydrogel composition during processing, includes the steps of placing the hydrogel composition in a liquid state onto a plastic film facestock, which has biaxially-oriented polypropylene, microporous cellulose acetate or a combination thereof, for temporarily adhering the hydrogel composition to the sheets of the roll stock during processing of the hydrogel composition, and then removing the hydrogel composition from the sheets of the roll stock, after processing of the hydrogel composition is complete, without any adverse affect on the textural qualities of the hydrogel composition.Type: GrantFiled: November 29, 2005Date of Patent: December 30, 2008Inventor: Robert D. Kross
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Patent number: 7282524Abstract: Phase stable, pumpable, liquid, high solids, aqueous monoalkanolamide surfactant emulsions are disclosed for use as cold mixable monoalkanolamide delivery systems for separately prepared aqueous formulations containing at least one principal surfactant. The monoalkanolamide surfactant emulsions comprise at least one monoalkanolamide characterized in its unemulsified form by having an amide content of at least about 85% and by being substantially solid and water insoluble at a temperature below about 30° C., and at least one monoalkanolamide emulsifying surfactant and, surprisingly, remain homogeneous, pourable, and pumpable at a total solids content of at least 20 weight percent at a temperature in the range of about zero ° C. to about 30° C.Type: GrantFiled: July 16, 2004Date of Patent: October 16, 2007Assignee: McIntyre Group, Ltd.Inventors: John Gray, Eugene D'Aversa
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Patent number: 7148260Abstract: Water-based emulsifier wax gels are provided that include skin-identical sphingolipids The present invention also provides a process for the preparation of such gels, the use of such gels for the preparation of oil-in-water emulsions, and the resulting emulsions that contain the inventive gels.Type: GrantFiled: November 28, 2003Date of Patent: December 12, 2006Assignee: Goldschmidt GmbHInventor: Thomas Dietz
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Patent number: 6765024Abstract: Phase stables, pumpable, liquid, high solids, aqueous monoalkanolamide surfactant emulsions are disclosed for use as cold mixable monoalkanolamide delivery systems for separately prepared aqueous formulations containing at least one principal surfactant. The monoalkanolamide surfactant emulsions comprise at least one monoalkanolamide characterized in its unemulsified form by having an amide content of at least about 85% and by being substantially solid and water insoluble at a temperature below about 30° C., and at least one monoalkanolamide emulsifying surfactant and, surprisingly, remain homogeneous, pourable, and pumpable at a total solids content of at least 20 weight percent at a temperature in the range of about zero° C. to about 30° C.Type: GrantFiled: September 27, 2001Date of Patent: July 20, 2004Assignee: McIntyre Group, Ltd.Inventors: John Gray, Eugene D'Aversa
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Patent number: 6517853Abstract: A process for preparing a crystal suspension of an organic compound which has a &Dgr;H/RT value (where &Dgr;H is the heat of fusion of the compound, R is the molar gas constant and T is the melting point of the compound) in the range of 1 to 10, the process comprising dispersing a melt of the organic compound in a liquid dispersion medium, typically water, to form an emulsion, typically an oil-in-water emulsion, cooling the emulsion below the melting point of the organic compound and subjecting the emulsion to ultrasonic vibration.Type: GrantFiled: November 17, 2000Date of Patent: February 11, 2003Assignee: Syngenta LimitedInventors: Neil George, Stephen Dawson, William Malcolm Logan Wood
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Patent number: 6384090Abstract: The invention relates to a process and an apparatus for preparing active ingredient dispersions, wherein an active ingredient is dissolved in a fluid gas, the fluid gas loaded with active ingredient is essentially completely dissolved in a liquid and is decompressed, and the gas is separated from the liquid loaded with active ingredient.Type: GrantFiled: November 30, 2000Date of Patent: May 7, 2002Assignee: BASF AktiengesellschaftInventors: Thomas Riede, Werner Göbel, Christian Lockemann
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Patent number: 6306915Abstract: The present invention provides a method of making an emulsified composition employing an emulsifier containing a sphingoglycolipid which has a structure represented by the following formula: wherein R1 is a saccharide moiety which consists of three to four hexoses selected from the group consisting of uronic acid, glucosamine, galactose, and mannose, or one uronic acid; R2 is an alkyl group, which may have a cycloalkyl group, an alkenyl group, or an alkynyl group; and R3 is an alkyl group. The alkyl group, the alkenyl group and the alkynyl group may have a normal chain or a branched chain, and may be substituted or unsubstituted. The emulsifier of the present invention has marked moisturizing effect, skin roughening preventing effect, and emulsifying effect.Type: GrantFiled: August 9, 1999Date of Patent: October 23, 2001Assignee: Kibun Food Chemifa Co., LtdInventor: Katsumi Murata
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Solid lipid particles, particles of bioactive agents and methods for the manufacture and use thereof
Patent number: 6207178Abstract: The present invention is in the area of administration forms and delivery systems for drugs, vaccines and other biologically active agents. More specifically the invention is related to the preparation of suspensions of colloidal solid lipid particles (SLPs) of predominantly anisometrical shape with the lipid matrix being in a stable polymorphic modification and of suspensions of micron and submicron particles of bioactive agents (PBAs); as well as to the use of such suspensions or the lyophilizates thereof as delivery systems primarily for the parenteral administration of preferably poorly water-soluble bioactive substances, particularly drugs, and to their use in cosmetic, food and agricultural products. SLPs and PBAs are prepared by the following emulsification process: (1) A solid lipid or bioactive agent or a mixture of solid lipids or bioactive agents is melted.Type: GrantFiled: December 3, 1998Date of Patent: March 27, 2001Assignee: Kabi Pharmacia ABInventors: Kirsten Westesen, Britta Siekmann -
Patent number: 6197836Abstract: The invention relates to a process and an apparatus for preparing active ingredient dispersions, wherein an active ingredient is dissolved in a fluid gas, the fluid gas loaded with active ingredient is essentially completely dissolved in a liquid and is decompressed, and the gas is separated from the liquid loaded with active ingredient.Type: GrantFiled: October 7, 1997Date of Patent: March 6, 2001Assignee: BASF AktiengesellschaftInventors: Thomas Riede, Werner Göbel, Christian Lockemann
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Patent number: 6194472Abstract: A composition of a hydrocarbon in water colloidal dispersion including hydrocarbon particles having a mean softening point exceeding 95° C., a water soluble dispersion agent and water, process and apparatus for the production thereof are disclosed. These dispersions have a median particle size below about 4.5 microns and 90% of the hydrocarbon particles have a size less than about 60 microns. These dispersions are storage stable, stable towards transportation, and can be pumped without destabilizing.Type: GrantFiled: February 3, 1999Date of Patent: February 27, 2001Assignee: Akzo Nobel N.V.Inventors: Sundaram Logaraj, Thomas J. Ernzen, Moon-Sun Lin, Antonio C. Ng, Todd Lesley Hays, Calvin Lynn Stegemoeller, Li Feng, Mark Aldrich Stroder
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Patent number: 6156806Abstract: The present invention is a composition comprising either: a) a high internal phase ratio emulsion having water as a continuous phase and a thermoplastic hydroxy-functional polyether as a disperse phase; or b) a stable aqueous dispersion of the thermoplastic hydroxy-functional polyether. The composition of the present invention addresses a need in the art by providing a thermoplastic coating that exhibits an excellent barrier to oxygen and carbon dioxide, but which barrier properties are not adversely affected by contact with water. The composition is particularly useful in the paper packaging industry where biodegradability and resistance to spoilage of food is desirable.Type: GrantFiled: August 26, 1998Date of Patent: December 5, 2000Assignee: The Dow Chemical CompanyInventors: Christian Piechocki, James E. Pate, Michael N. Mang, Jerry E. White, Dale C. Schmidt
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Patent number: 6113659Abstract: A fuel composition comprising a hydrocarbon in water colloidal dispersion including spherical hydrocarbon particles having a mean softening point exceeding about 95.degree. C., and a water soluble dispersion agent comprising a surfactant and stabilizer. The process for the production thereof is disclosed. These dispersions have a median particle size below about 4.5 microns and about 90% of the particles have a mean particle size diameter less than about 60 microns. These dispersions are storage stable, stable towards transportation, and can be pumped and passed through a burner apparatus without destabilizing.Type: GrantFiled: February 3, 1999Date of Patent: September 5, 2000Assignee: Akzo Nobel nvInventors: Sundaram Logaraj, Thomas J. Ernzen, Antonio Chan Ng, Mark Aldrich Stroder, Stephen J. DeCanio, Ronald J. McKeon, Shailaja M. Shirodkar
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Patent number: 5976403Abstract: A process for producing dispersions of atmospherically stable, coated alkali metal particles and atmospherically stable, coated alkali metal powders by agitating a mixture of molten alkali metal in a hydrocarbon oil at dispersion speeds, optionally in the presence of a dispersing agent, contacting the molten alkali metal-hydrocarbon oil dispersion, above or below the surface of the dispersion, with up to 3 weight percent anhydrous carbon dioxide while agitating the dispersion for at least 1 minute. The dispersion in oil can be used directly in chemical reactions. The bulk of the oil can be removed from the dispersions to produce oil wet particles, the oil wet particles car be washed with a low boiling hydrocarbon to produce hydrocarbon wet particles which can be dried to produce atmospherically stable powders of coated metal particles. The dispersed particles in oil, the oil wet particles, the hydrocarbon wet particles and the atmospherically stable powders can each be used in chemical reactions.Type: GrantFiled: April 23, 1998Date of Patent: November 2, 1999Assignee: FMC CorporationInventors: B. Troy Dover, Conrad W. Kamienski, Robert C. Morrison, R. Thomas Currin, Jr., James A. Schwindeman
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Solid lipid particles, particles of bioactive agents and methods for the manufacture and use thereof
Patent number: 5885486Abstract: The present invention is in the area of administration forms and delivery systems for drugs, vaccines and other biologically active agents. More specifically the invention is related to the preparation of suspensions of colloidal solid lipid particles (SLPs) of predominantly anisometrical shape with the lipid matrix being in a stable polymorphic modification and of suspensions of micron and submicron particles of bioactive agents (PBAs); as well as to the use of such suspensions or the lyophilizates thereof as delivery systems primarily for the parenteral administration of preferably poorly water-soluble bioactive substances, particularly drugs, and to their use in cosmetic, food and agricultural products.SLPs and PBAs are prepared by the following emulsification process:(1) A solid lipid or bioactive agent or a mixture of solid lipids or bioactive agents is melted.Type: GrantFiled: December 2, 1996Date of Patent: March 23, 1999Assignee: Pharmaciaand Upjohn ABInventors: Kirsten Westesen, Britta Siekmann