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| Number | Title | Issue Date |
| 8158158 | Composite biocidal particles A biocidal composition is disclosed comprising composite particles, each of said composite particles containing a shell and a core, said core comprising a metal or a metal-containing compound wherein the metal is a moiety selected from the group consisting of zinc, ... | 04/17/2012 |
| 7942958 | Composite biocidal particles A biocidal composition is disclosed comprising composite particles, each of the composite particles containing a shell and a core, the core comprising a metal or a metal-containing compound wherein the metal is a moiety selected from the group consisting of zinc, co... | 05/17/2011 |
| 7927510 | Calcium hypochlorite compositions comprising zinc salts and lime The present invention is directed to a granular water treatment composition, comprising: 35-95 wt % calcium hypochlorite; 1 to 50 wt % magnesium sulfate or a hydrate thereof; 0.1 to 10 wt % lime; and 0.1 to 55 wt % of a water soluble zinc salt or a hydrate thereof; ... | 04/19/2011 |
| 7893047 | Biocide composition comprising pyrithione and pyrrole derivatives The present invention is directed to a biocidal composition comprising a blend of one or more pyrithione compounds, and one or more pyrrole compounds of Formula I wherein said biocidal composition is copper free or low copper content. ... | 02/22/2011 |
| 7854940 | Broad spectrum preservation blends A composition having effective broad spectrum preservation activity comprising a mixture of caprylyl glycol or one or more analogs thereof, or mixtures thereof with a preservative selected from the group consisting of: (1) chloroxylenol and 2-phenoxyethanol, (2) chl... | 12/21/2010 |
| 7820198 | Pool chemical tablet One aspect of the present invention is directed to a solid chemical tablet in a shape comprising an elongated cylindrical side surface and an elongated flat side surface or an elongated concave cut side surface. Another aspect of the present invention is directed to... | 10/26/2010 |
| 7704467 | Weekly floater pool sanitizer A composition for the treatment of a liquid, particularly a body of water, such as a swimming pool, spa, or the like. The composition includes calcium hypochlorite, a water soluble zinc salt for controlling algae, and sodium aluminate as an agglomerating agent that ... | 04/27/2010 |
| 7674785 | Topical anti-microbial compositions Disclosed are topical compositions for the treatment of microbial infections on the skin or scalp which include a polyvalent metal salt of pyrithione and include a metal ion source. Also disclosed are methods for treating microbial infections of the skin or scalp us... | 03/09/2010 |
| 7658844 | Apparatus for supporting chemical tablets A chemical feeder for dissolving chemical tablets includes a housing and a plurality of tapered pedestals positioned in the housing for supporting the chemical tablet as the tablet is dissolved by liquid flowing through the feeder. The housing also includes a cup co... | 02/09/2010 |
| 7623241 | Method for automatic color matching of transparent wood stains A method of producing a finish for a paper substrate, wherein the finish provides the paper substrate with a color that matches the color of a target object. In accordance with the method, calculations are performed to determine the quantities of at least one group ... | 11/24/2009 |
| 7575673 | Method of water treatment The invention relates to a method of treatment of bodies of water such as recreational pools, spas and hot tubs with maintenance doses of water treatment chemicals to achieve consistent sanitization and aesthetically pleasing levels of properties such as turbidity. ... | 08/18/2009 |
| 7544367 | Chemical method of making a suspension, emulsion or dispersion of pyrithione particles A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de-agglomerating agent to produce the desired ... | 06/09/2009 |
| 7481873 | Small particle copper pyrithione Disclosed herein is a composition comprising a non-dusting copper pyrithione dispersion comprising small solid particles of copper pyrithione dispersed in a liquid dispersant, said solid particles having a particle size within a range of from about 0.1 to about 10 m... | 01/27/2009 |
| 7455851 | Pyrithione biocides enhanced by silver, copper, or zinc ions The present invention is directed to an antimicrobial composition, comprising pyrithione or a pyrithione complex; and a zinc or copper or silver source selected from the group consisting of zinc or copper or silver salts, oxides, hydroxides, sulfates, chlorides, met... | 11/25/2008 |
| 7435771 | Stable antifouling paint composition containing metal salt of pyrithione and cuprous oxide The present invention describes a composition for stabilizing a paint or paint base composition against viscosity change, gelation and agglomeration during formulation and storage. Illustratively, an antifouling paint or paint base composition is disclosed that cont... | 10/14/2008 |
| 7410938 | Calcium hypochlorite/scale inhibitor/residue disperser triblend A solid calcium hypochlorite composition comprising a mixture of: solid calcium hypochlorite; a scale-inhibiting effective amount of a primarily scale-inhibiting alkali metal phosphate; and an effective residue-dispersing amount of primarily residue-dispersing alkal... | 08/12/2008 |
| 7323119 | Color stabilization of hydroquinone hydroxyethyl ether products The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule. ... | 01/29/2008 |
| 7273944 | Methods for producing copper ethanolamine solutions Provided are preservation formulations and methods, e.g., formulations for the preservation of wood. In particular, provided are methods for the production of copper monoethanolamine aqueous solutions from metallic copper and monoethanolamine. ... | 09/25/2007 |
| 7202287 | Method and compositions The invention relates to a method for inhibiting the growth of microorganisms in a latex, especially a sterically stabilised or cationic stabilised latex and to a composition for use in the method comprising a polymeric biguanide and an isothiazolinone of the Formul... | 04/10/2007 |
| 7122505 | Composition for controlling the growth of algae, fungi and pathogenic organisms in water A stable aqueous concentrate comprising a polymeric biguanide, a chelating agent and a water-miscible organic solvent for controlling the growth of algae, fungi and pathogenic organisms in water. ... | 10/17/2006 |
| 7094353 | Method of water treatment The invention relates to a method of treatment of bodies of water such as recreational pools, spas and hot tubs with maintenance doses of water treatment chemicals to achieve consistent sanitization and aesthetically pleasing levels of properties such as turbidity. ... | 08/22/2006 |
| 7026308 | Topical anti-microbial compositions Disclosed are topical compositions for the treatment of microbial infections on the skin or scalp which include a polyvalent metal salt of pyrithione and include a metal ion source. Also disclosed are methods for treating microbial infections of the skin or scalp us... | 04/11/2006 |
| 7008531 | Treatment of circulating water systems The present invention relates to a method of inhibiting the growth of killing algae, bacteria, yeast and/or fungi in a recirculating water system which comprises adding to the water a polymeric biguanide and an adjuvant of the Formula (1) or a salt thereof: | 03/07/2006 |
| 6994804 | Color stabilization of hydroquinone hydroxyethyl ether products The present invention relates to the color stabilization of hydroquinone hydroxyethyl ethers by phosphite compounds containing the bis-cyclic structure of spiro phosphites, both rings being attached to the same tertiary carbon atom in the phosphite molecule. ... | 02/07/2006 |
| 6984398 | Calcium hypochlorite blended tablets A non-Division 5.1 Oxidizer tablet consisting essentially of a blend of hydrated calcium hypochlorite with magnesium sulfate heptahydrate, wherein the blend contains at least about 17% by weight of water based on the total weight of the blend and the dissolving rate... | 01/10/2006 |
| 6969527 | Calcium hypochlorite blended tablets A non-Division 5.1 Oxidizer tablet consisting essentially of a blend of hydrated calcium hypochlorite with magnesium sulfate heptahydrate, wherein the blend contains at least about 17% by weight of water based on the total weight of the blend; contains from about 0.... | 11/29/2005 |
| 6915811 | Chemical feeder A feeder that uses a local elevation or stationary wave of a body of water to facilitate the dissolving of a chlorine-containing water treatment chemical. ... | 07/12/2005 |
| 6908912 | Pyrithione biocides enhanced by zinc metal ions and organic amines The present invention is directed to a stable, soluble, antimicrobial composition concentrate comprising pyrithione or a pyrithione complex in an amount of from about 0.5% to about 30 weight percent, a zinc source in an amount of from about 0.1% to about 10%, and an... | 06/21/2005 |
| 6821326 | Small particle copper pyrithione Disclosed herein is a composition comprising a non-dusting copper pyrithione dispersion comprising small solid particles of copper pyrithione dispersed in a liquid dispersant, said solid particles having a particle size within a range of from about 0.1 to about 10 m... | 11/23/2004 |
| 6811711 | Treatment of circulating water systems The present invention relates to a method of inhibiting the growth of killing algae, bacteria, yeast and/or fungi in a recirculating water system which comprises adding to the water a polymeric biguanide and an adjuvant of the Formula (1) or a salt thereof: | 11/02/2004 |
| 6750276 | Waterborne soft-feeling coating composition with high gloss A waterborne, soft feeling coating composition and a substrate coated with the composition. The coating composition comprises an aqueous solvent, a resin, and an alcohol alkoxylate surfactant. The invention is also directed to a process of making the waterborne coat... | 06/15/2004 |
| 6716913 | Polyols containing grafted carboxyl groups and method of making same The present invention is directed to carboxyl-containing monomers for use in preparing a polyurethane polymers, the carboxyl-containing monomers being the reaction product of a low molecular weight polyol compound and an acid anhydride in the presence of 5-500 ppm p... | 04/06/2004 |
| 6682724 | Sonic method of enhancing chemical reactions to provide uniform, non-agglomerated particles A method for making a suspension, dispersion or emulsion of non-agglomerated particles comprising forming particles in a liquid medium, wherein sonic energy is applied to the liquid medium at the point of contact of the reactants during the particle formi... | 01/27/2004 |
| 6653273 | Wetting agents for concrete cleaning and adhesives The present invention relates to a cleaning composition comprising: (a) at least one additive selected from the group consisting of detergents, corrosion inhibitors, organic and aqueous carriers, and combinations thereof, (b) a wetting/cleaning agent sele... | 11/25/2003 |
| 6638446 | Lower reactivity blends of calcium hypochlorite and magnesium sulfate A non-Division 5.1 Oxidizer composition consisting essentially of a blend of hydrated calcium hypochlorite with magnesium sulfate heptahydrate, wherein the blend contains at least about 17% by weight of water based on the total weight of the blend.... | 10/28/2003 |
| 6627665 | Non-dusting copper pyrithione dispersion The present invention is directed to a non-dusting copper pyrithione dispersion, comprising an admixture of: from about 20 to about 99 wt % of copper pyrithione; from about 0.05 to about 30 wt % of a dust-inhibiting agent selected from the group consistin... | 09/30/2003 |
| 6497822 | Chemical feeder A feeder uses vortex flow to facilitate the dissolving of a chlorine-containing water treatment chemical. A feeder inlet receives water which is directed to a chamber by a conduit. A vortex flow in the chamber receives amounts of the chemical from a reser... | 12/24/2002 |
| 6465015 | Sonic method of enhancing chemical reactions to provide uniform, non-agglomerated particles A method for making a suspension, dispersion or emulsion of non-agglomerated particles comprising forming particles in a liquid medium, wherein sonic energy is applied to the liquid medium at the point of contact of the reactants during the particle formi... | 10/15/2002 |
| 6432432 | Chemical method of making a suspension, emulsion or dispersion of pyrithione particles A method for producing a suspension, emulsion or dispersion of de-agglomerated particles (advantageously submicron-sized particles) of pyrithione salts comprising contacting agglomerated pyrithione salt particles with a de-agglomerating agent to produce t... | 08/13/2002 |
| 6242007 | Non-spherical and non-platelet forms of pyrithione salts and methods of making same The present invention relates to non-spherical and/or non-platelet pyrithione particles. Also disclosed is a method for producing non-spherical and/or non-platelet particles of pyrithione salts, comprising reacting pyrithione acid or a water-soluble salt ... | 06/05/2001 |
