Anti-fouling Composition (e.g., Paints, Etc.) Patents (Class 424/78.09)
  • Patent number: 6730294
    Abstract: 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: Grant
    Filed: March 31, 2000
    Date of Patent: May 4, 2004
    Assignee: Novapharm Research (Australia) Pty Limited
    Inventor: Steven Kritzler
  • Patent number: 6669771
    Abstract: 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: Grant
    Filed: September 13, 2002
    Date of Patent: December 30, 2003
    Assignees: National Institute of Advanced Industrial Science and Technology, Allmighty Co., Ltd.
    Inventors: Yutaka Tokiwa, Akihito Tsuchiya
  • Patent number: 6610282
    Abstract: 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: Grant
    Filed: April 14, 1999
    Date of Patent: August 26, 2003
    Assignee: Rohm and Haas Company
    Inventor: Tirthankar Ghosh
  • Publication number: 20030124085
    Abstract: 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: Application
    Filed: January 8, 2003
    Publication date: July 3, 2003
    Inventors: Yasuhiro Kozasa, Yoshifumi Shibuya, Toshio Morishita, Yasuhiro Hidaka, Hiroyuki Akashi
  • Publication number: 20030118544
    Abstract: 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: Application
    Filed: October 11, 2002
    Publication date: June 26, 2003
    Inventors: Koji Tokunaga, Masataka Ooka, Hiroo Tanaka, Asako Oda, Hiroshi Matsuzawa, Makoto Tsuboi, Eiichi Yoshikawa, Yasuhiro Yuki, Satoshi Hiyoshi
  • Patent number: 6565868
    Abstract: 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: Grant
    Filed: January 18, 2000
    Date of Patent: May 20, 2003
    Assignee: Albemarle Corporation
    Inventors: Jonathan N. Howarth, Christopher J. Nalepa, Michael J. Sanders, David L. Shelton
  • Patent number: 6555228
    Abstract: 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: Grant
    Filed: February 2, 2001
    Date of Patent: April 29, 2003
    Inventor: Dennis A. Guritza
  • Patent number: 6551609
    Abstract: 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: Grant
    Filed: February 28, 2002
    Date of Patent: April 22, 2003
    Inventor: Joseph A. King
  • Publication number: 20020192181
    Abstract: 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: Application
    Filed: March 21, 2002
    Publication date: December 19, 2002
    Inventors: David Neil Williams, Nigel Ivor Edward Shewring, Adrian James Lee
  • Publication number: 20020182169
    Abstract: 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: Application
    Filed: March 4, 2002
    Publication date: December 5, 2002
    Inventors: Duncan H. Hunter, Mustafa Janabi
  • Patent number: 6475504
    Abstract: 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: Grant
    Filed: October 25, 1995
    Date of Patent: November 5, 2002
    Inventor: Howard Franklin Stewart
  • Patent number: 6475505
    Abstract: 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: Grant
    Filed: December 20, 1999
    Date of Patent: November 5, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Urs Stadler
  • Patent number: 6428903
    Abstract: 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: Grant
    Filed: December 20, 1999
    Date of Patent: August 6, 2002
    Assignee: Fidia Advanced Biopolymers S.r.L.
    Inventor: Lanfranco Callegaro
  • Patent number: 6419915
    Abstract: 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: Grant
    Filed: June 30, 2000
    Date of Patent: July 16, 2002
    Assignee: General Electric Company
    Inventor: Judith Stein
  • Patent number: 6403105
    Abstract: 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: Grant
    Filed: October 25, 2000
    Date of Patent: June 11, 2002
    Assignee: General Electric Company
    Inventor: Judith Stein
  • Publication number: 20020064544
    Abstract: 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 polymer
    Type: Application
    Filed: November 23, 2001
    Publication date: May 30, 2002
    Inventors: John Lezdey, Jarett Lezdey
  • Patent number: 6346262
    Abstract: 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: Grant
    Filed: November 29, 1999
    Date of Patent: February 12, 2002
    Assignee: Lee County Mosquito Control District
    Inventor: Richard Levy
  • Patent number: 6337078
    Abstract: 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: Grant
    Filed: December 10, 1999
    Date of Patent: January 8, 2002
    Assignee: Lee County Mosquito Control District
    Inventor: Richard Levy
  • Patent number: 6335027
    Abstract: 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: Grant
    Filed: December 10, 1999
    Date of Patent: January 1, 2002
    Assignee: Lee County Mosquito Control District
    Inventor: Richard Levy
  • Patent number: 6248159
    Abstract: 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: Grant
    Filed: December 9, 1999
    Date of Patent: June 19, 2001
    Assignee: Rohm and Haas Company
    Inventors: Heinrich Poppen, Michael Pallaske
  • Patent number: 6241898
    Abstract: 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: Grant
    Filed: March 16, 1998
    Date of Patent: June 5, 2001
    Assignee: BetzDearborn Inc.
    Inventors: J. Barry Wright, M. Christine Johnson
  • Patent number: 6217642
    Abstract: 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: Grant
    Filed: March 11, 1998
    Date of Patent: April 17, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Franz Kunisch, Martin Kugler, Heinrich Schrage, Hans-Ludwig Elbe