Anti-fouling Composition (e.g., Paints, Etc.) Patents (Class 424/78.09)
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Patent number: 6730294Abstract: A method of forming a water soluble biocidal film on a solid household, food preparation, or medical surface, which protects the solid surface against reinfection by microorganisms, includes providing a liquid biocidal composition comprised of, based on total weight of the liquid biocidal composition from 0.1 to 5.0 wt. % of a phenolic biocide; from an amount effective to impart film-forming properties to the liquid biocidal composition up to 8 wt. % of a polyvinyl pyrrolidone polymer or copolymer; and an aqueous alcoholic solvent in which the phenolic biocide and the polyvinylpyrrolidone polymer or copolymer are dissolved; treating the solid surface with the liquid biocidal composition; and evaporating the aqueous alcoholic solvent to provide a clear film, wherein a ratio of the phenolic biocide to the polyvinylpyrrolidone polymer or copolymer is selected to range from 1:0.8 to 1:3 so that a complex there between is provided which dries clear.Type: GrantFiled: March 31, 2000Date of Patent: May 4, 2004Assignee: Novapharm Research (Australia) Pty LimitedInventor: Steven Kritzler
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Patent number: 6669771Abstract: The present invention provides a biodegradable resin composition with improved biodegradability or with an additional useful function (antibacterial properties), while maintaining the mechanical properties of the biodegradable resin. More specifically, the present invention provides a biodegradable resin composition containing a biodegradable resin such as a polylactic acid polymer and a mamman digestion product such as a mannooligosaccharide. The present invention further provides various biodegradable products produced by molding this biodegradable resin composition into desired shapes.Type: GrantFiled: September 13, 2002Date of Patent: December 30, 2003Assignees: National Institute of Advanced Industrial Science and Technology, Allmighty Co., Ltd.Inventors: Yutaka Tokiwa, Akihito Tsuchiya
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Patent number: 6610282Abstract: Disclosed are compositions containing biologically active compounds that slowly release the biologically active compound. These compositions may be directly incorporated into the locus to be protected or may be applied to a structure in a coating.Type: GrantFiled: April 14, 1999Date of Patent: August 26, 2003Assignee: Rohm and Haas CompanyInventor: Tirthankar Ghosh
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Publication number: 20030124085Abstract: The present invention provides a bis(2-pyridinethiol-1-oxide) copper salt coated with one or more compounds selected from glycerin, dialkyl phthalate, lubricating oil, acrylic resin, rosin, fatty acid amide, dialkyl polysulfide, polybutene, paraffin and petrolatum. The coated copper salt does not scatter, so that it is easy to handle, and is superior in safety and workability. In addition, the copper salt does not suffer from any adverse influence on the inherent storage stability or antifouling effect by being coated. Therefore, a coating for the bottom of a ship having a superior antifouling effect and storage stability can be obtained.Type: ApplicationFiled: January 8, 2003Publication date: July 3, 2003Inventors: Yasuhiro Kozasa, Yoshifumi Shibuya, Toshio Morishita, Yasuhiro Hidaka, Hiroyuki Akashi
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Publication number: 20030118544Abstract: An antifouling coating composition having an excellent coating film strength and also has markedly superior antifouling properties, and a novel resin which is useful as a matrix resin for the composition are provided.Type: ApplicationFiled: October 11, 2002Publication date: June 26, 2003Inventors: Koji Tokunaga, Masataka Ooka, Hiroo Tanaka, Asako Oda, Hiroshi Matsuzawa, Makoto Tsuboi, Eiichi Yoshikawa, Yasuhiro Yuki, Satoshi Hiyoshi
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Patent number: 6565868Abstract: Microbiological control in water systems is achieved with an amount,of 1,3-dibromo-5,5-dimethylhydantoin that is less than the amount of N,N′-bromochloro-5,5-dimethylhydantoin required to achieve the same degree of microbiological control. The methods of combating Escherichia coli and/or Enterococcus faecium in an aqueous medium, and biofilms such as formed by Pseudomonas aeruginosa on surfaces contacted by the aqueous medium, involve introducing into the medium a biocidally effective amount of 1,3-dibromo-5,5-dimethylhydantoin. A microbiological control agent for use in water in accordance with U.S. Environmental Protection Agency regulations is purveyed in containers of a water control agent comprising 1,3-dibromo-5,5-dimethylhydantoin, which containers bear a label having thereon dosage levels pursuant to requirements promulgated by the U.S. Environmental Protection Agency. The 1,3-dibromo-5,5-dimethylhydantoin is used or purveyed either as a product having a large average particle size (e.g.Type: GrantFiled: January 18, 2000Date of Patent: May 20, 2003Assignee: Albemarle CorporationInventors: Jonathan N. Howarth, Christopher J. Nalepa, Michael J. Sanders, David L. Shelton
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Patent number: 6555228Abstract: The instant invention is a bio-supportive medium comprising a degradable material, at least one nutritional source, and at least one bio-limiting agent dispersed in the biodegradable material. The nutritional source is present in the degradable material or an additive to the degradable material. The components of the bio-supportive medium are provided in quantities, such that the bio-supportive medium is capable of supporting formation of a biomass having a specific consortium of organisms, substantially at equilibrium within its environment or host habitat. While maintaining the biomass, the bio-limiting agent also provides the bio-supportive medium to limit the amount and type of species present in the biomass. The instant invention provides a unique bio-mimicking and environmentally-friendly way to control fouling of materials exposed to marine and aquatic environments.Type: GrantFiled: February 2, 2001Date of Patent: April 29, 2003Inventor: Dennis A. Guritza
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Patent number: 6551609Abstract: A regenerative water treatment composition and a process of making a regenerative water treatment composition by adhesively coating a first bacteria killing material such as a zinc carrier with a second bacterial killing material such as silver chloride for insitu killing of bacteria and a second bacteria killing material for killing and carrying away the dead bacteria on the silver chloride to allow the silver chloride to continue to kill or damage bacteria that comes into contact with the silver chloride.Type: GrantFiled: February 28, 2002Date of Patent: April 22, 2003Inventor: Joseph A. King
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Publication number: 20020192181Abstract: An anti-fouling composition which comprises a cured or cross-linked polymer free of perfluoropolyether moieties and a fluid fluorinated alkyl- or alkoxy-containing polymer or oligomer.Type: ApplicationFiled: March 21, 2002Publication date: December 19, 2002Inventors: David Neil Williams, Nigel Ivor Edward Shewring, Adrian James Lee
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Publication number: 20020182169Abstract: One aspect of the present invention relates to novel compounds that can be used to prepare radiolabeled compounds in an effective manner. A second aspect of the present invention relates to a method of synthesizing radiolabeled compounds.Type: ApplicationFiled: March 4, 2002Publication date: December 5, 2002Inventors: Duncan H. Hunter, Mustafa Janabi
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Patent number: 6475504Abstract: What is disclosed is a method for the formation of unique poly(vinyl alcohol) hydrogels, articles that are made from such hydrogels, unique odor-providing pest repellent compositions and their uses to repel pests.Type: GrantFiled: October 25, 1995Date of Patent: November 5, 2002Inventor: Howard Franklin Stewart
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Patent number: 6475505Abstract: Concentrates of various classical biocides in a polyester carrier resin when incorporated into a substrate resin, preferably a polyolefin such as polypropylene or polyethylene, provide the substrate polymer which biocidal activity with superior resistance to discoloration (yellowing) than when the biocide is directly incorporated into the substrate polymer as a powder at the same total concentration.Type: GrantFiled: December 20, 1999Date of Patent: November 5, 2002Assignee: Ciba Specialty Chemicals CorporationInventor: Urs Stadler
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Patent number: 6428903Abstract: There are disclosed electronic or microelectronic components having on at least a portion of a surface thereof a coating containing hyaluronic acid or a derivative thereof wherein said coating has the ability to inhibit adhesion of microorganisms and formation of biofilms. Also disclosed are methods of inhibiting corrosion and changes in electrical conductivity by inhibiting biofilm formation on electronic or microelectronic components by applying a coating containing hyaluronic acid or a derivative thereof directly onto the surface of said components.Type: GrantFiled: December 20, 1999Date of Patent: August 6, 2002Assignee: Fidia Advanced Biopolymers S.r.L.Inventor: Lanfranco Callegaro
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Patent number: 6419915Abstract: The present invention relates to a method of introducing enhanced biofouling release properties to intact biofouling release coatings by exposing the surface of the biofouling release coating to a restorative compound for a time sufficient to effect enhancement of biofouling release properties. Also disclosed are kits useful in carrying out these processes.Type: GrantFiled: June 30, 2000Date of Patent: July 16, 2002Assignee: General Electric CompanyInventor: Judith Stein
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Patent number: 6403105Abstract: A condensation curable coating composition comprises the following and any reaction product thereof: (A) a room temperature vulcanizable polyorganosiloxane composition; and (B) a marine foul release-enhancing proportion of at least one organic compatible silicone fluid free from silanol groups and being capable of blooming to the surface of a cured product of component A.Type: GrantFiled: October 25, 2000Date of Patent: June 11, 2002Assignee: General Electric CompanyInventor: Judith Stein
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Publication number: 20020064544Abstract: The invention provides antimicrobial composition which contain phenols complexed with polycarboxylic acid and a quaternary amine compound to form a long lasting film which can be sprayed on surfaces or combined with a polymerType: ApplicationFiled: November 23, 2001Publication date: May 30, 2002Inventors: John Lezdey, Jarett Lezdey
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Patent number: 6346262Abstract: Controlled release compositions of matter are disclosed comprising complexes for treating a population of one or more aquatic organisms in a column of water. The complexes comprise at least one system wherein the system comprises at least one bioactive agent as a component selected for treating a population of aquatic organisms, at least one carrier component, and at least one coating component for regulating the controlled release rate and release profile of the bioactive agent in water or at least one bioactive agent and one joint-function component that can serve as both a carrier and coating to regulate the controlled release rate and release profile of the bioactive agent in water, with or without optional binder components and/or additional formulation materials. The components are selected to sink or float so that the complexes will permeate and/or remain in any planar or volumetric segment of a water column for a period of time that is sufficient to effectively treat a population of aquatic organisms.Type: GrantFiled: November 29, 1999Date of Patent: February 12, 2002Assignee: Lee County Mosquito Control DistrictInventor: Richard Levy
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Patent number: 6337078Abstract: Controlled release compositions of matter are disclosed comprising complexes for treating a population of one or more aquatic organisms in a column of water. The complexes comprise at least one system wherein the system comprises at least one bioactive agent as a component selected for treating a population of aquatic organisms, at least one carrier component, and at least one coating component for regulating the controlled release rate and release profile of the bioactive agent in water or at least one bioactive agent and one joint-function component that can serve as both a carrier and coating to regulate the controlled release rate and release profile of the bioactive agent in water, with or without optional binder components and/or additional formulation materials. The components are selected to sink or float so that the complexes will permeate and/or remain in any planar or volumetric segment of a water column for a period of time that is sufficient to effectively treat a population of aquatic organisms.Type: GrantFiled: December 10, 1999Date of Patent: January 8, 2002Assignee: Lee County Mosquito Control DistrictInventor: Richard Levy
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Patent number: 6335027Abstract: Controlled release compositions of matter are disclosed comprising complexes for treating a population of one or more aquatic organisms in a column of water. The complexes comprise at least one system wherein the system comprises at least one bioactive agent as a component selected for treating a population of aquatic organisms, at least one carrier component, and at least one coating component for regulating the controlled release rate and release profile of the bioactive agent in water or at least one bioactive agent and one joint-function component that can serve as both a carrier and coating to regulate the controlled release rate and release profile of the bioactive agent in water, with or without optional binder components and/or additional formulation materials. The components are selected to sink or float so that the complexes will permeate and/or remain in any planar or volumetric segment of a water column for a period of time that is sufficient to effectively treat a population of aquatic organisms.Type: GrantFiled: December 10, 1999Date of Patent: January 1, 2002Assignee: Lee County Mosquito Control DistrictInventor: Richard Levy
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Patent number: 6248159Abstract: A wood protecting agent, particularly for the protection of wood against dry-wood-destroying insects is provided. The wood protecting agent comprises a wood preservative carrier and the combination of at least one insect juvenile hormone or its analogue or mimetic with at least one an ecdysone agonist or its analogue or mimetic in a concentration of 0.5 to 0.00005 % by weight, related to the entire formulation, and optionally, one or more triazole compounds to achieve a synergistic increase in effectiveness of said formulation.Type: GrantFiled: December 9, 1999Date of Patent: June 19, 2001Assignee: Rohm and Haas CompanyInventors: Heinrich Poppen, Michael Pallaske
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Patent number: 6241898Abstract: A treatment for inhibiting the microbial adhesion on surfaces in contact with an aqueous system is disclosed, which comprises adding to the system the combination of an alkylsulfosuccinate surfactant and a block copolymer.Type: GrantFiled: March 16, 1998Date of Patent: June 5, 2001Assignee: BetzDearborn Inc.Inventors: J. Barry Wright, M. Christine Johnson
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Patent number: 6217642Abstract: A method and composition for protection against fouling of objects which come into contact with sea water or brackish water comprising a benzothiophene-2-carbomide S,S-dioxide as the essential component are described.Type: GrantFiled: March 11, 1998Date of Patent: April 17, 2001Assignee: Bayer AktiengesellschaftInventors: Franz Kunisch, Martin Kugler, Heinrich Schrage, Hans-Ludwig Elbe