The Procter Gamble Company

Pur Water Purification Products, Inc.

Helen of Troy Limited

David William Bjorkquist

Rajan Keshav Panandiker

Dimitris Ioannis Collias

Michael Donovan Mitchell

Piyush Narendra Zaveri

Matthew Morgan Woolley

Robert Lee Barcus

Thomas Joseph Wehmeier

Eugene Paul Gosselink

Todd Leon Mansfield

Janet Sue Littig

Sherri Lynn Randall

Andrew Thomas Pearks

William W Schmidt

Aloysius Ike Ononye

Peter William Beerse

Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of filter particles consisting of mesoporous activated carbon wherein at least a portion of the plurality of filter particles is at least partially coated with silver or a silver-containing material. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and a ratio of the sum of the mesopore and macropore volumes to the total pore volume of the filter particles is greater than about 0.3. The filter removes bacteria and viruses from the water at a level of Filter Bacteria Log Removal of greater than about 2 logs and a Filter Viruses Log Removal of greater than about 1 log.

Methods of treating water

Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of filter particles consisting of mesoporous activated carbon. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and a ratio of the sum of the mesopore and macropore volumes to the total pore volume of the filter particles is greater than about 0.3. The filter removes bacteria and viruses from the water at a level of Filter Bacteria Log Removal of greater than about 2 logs and a Filter Viruses Log Removal of greater than about 1 log.

Methods for treating water

Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous wood activated carbon filter particles and particles selected from the group consisting of mesoporous wood activated carbon filter particles coated entirely with a cationic polymer, mesoporous wood activated carbon filter particles partially coated with a cationic polymer, and mixtures thereof. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL/g and about 2 mL/g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and a ratio of the sum of the mesopore and macropore volumes to the total pore volume of the filter particles is greater than about 0.3. The filter removes bacteria and viruses from the water at a level of Filter Bacteria Log Removal of greater than about 2 logs and a Filter Viruses Log Removal of greater than about 1 log.

A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles.

Water filter materials and water filters and processes for using the same

A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.

Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same

A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with silver or a silver containing material. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.

Water filter materials, water filters and kits containing silver coated particles and processes for using the same

A detergent composition comprising from about 4% to about 70% of a surfactant, and from about 0.05% to about 10% of a dye maintenance polymer or oligomer having at least three net positive chages per molecule. The dye maintenance polymer should have a Dye Maintenance Parameter, as determined by the Dye Maintenance Parameter Test defined herein, of greater than about 0.23. Further, the dye maintenance polymer is not a polyethyleneimine or alkoxylated derivative thereof.

Laundry detergent compositions with a cationically charged dye maintenance polymer

The present invention relates to laundry detergent compositions providing dye protection benefits to fabric comprising: a) from about 4% to about 70% by weight, of a surfactant; b) from about 0.01% by weight, of a dye maintenance polymer or oligomer, said polymer or copolymer comprising one or more linearly polymerizing monomers, cyclically polymerizing monomers, and mixtures thereof; and c) the balance carriers and adjunct ingredients.

Laundry detergent compositions with certain cationically charged dye maintenance polymers

The present invention relates to a flushable fibrous structure that is particularly useful as a disposable tissue product and as a component (e.g., topsheets) for absorbent articles such as catamenial pads, diapers, incontinent articles and the like. The invention specifically relates to a flushable fibrous structure that has an in-use wet tensile strength of at least about 100 g/in. and a disposal wet tensile strength of not more than about 30 g/in. The invention also relates to absorbent articles comprising the fibrous structures, and methods for making the structures.

Flushable fibrous structures

Disclosed is a fiber comprising, chemically bonded together, (a) a conventional cellulosic fiber, such as a Kraft fiber or a chemithermomechanical pulp fiber; (b) poly(acrylate-co-itaconate) copolymer, such as the acid form of a poly(acrylate-co-itaconate) copolymer comprising 90-95 mole % acrylate and 5-10 mole % itaconate having weight average molecular weight of about 600,000-900,000; and (c) a polyol, such as polyethylene glycol; also disclosed are methods for making such fibers, especially evaporatively depositing an intimate mixture of the copolymer and polyol on the fiber followed by thermally crosslinking at specific temperatures for limited periods; absorbent paper which can be made by wet-laying the fiber, especially in admixture with conventional fiber; and derivative paper structures, such as multi-ply disposable absorbent towels.

Fibers and pulps for papermaking based on chemical combination of poly

A compound having the formula: ##STR1## where R.sub.1, R.sub.2, and R.sub.3 are independently hydrogen or C.sub.1 -C.sub.4 alkyl; n is 2-4; X is aryl, substituted aryl or C.sub.1 -C.sub.6 alkyl; Y is selected from the group consisting of hydrogen, amino acid, dipeptide or tripeptide linked through the C-terminal carboxylic acid, and amine protecting group is presented.

.beta.-aminoalkyl and .beta.-N-peptidylaminoalkyl boronic acids

Fibers and pulps for papermaking based on chemical combination of

A compound having the formula: ##STR1## where R.sub.1, R.sub.2, and R.sub.3 are independently hydrogen or C.sub.1-C.sub.4 alkyl; n is 2-4; X is aryl, substituted aryl or C.sub.1-C.sub.6 alkyl; Y is selected from the group consisting of hydrogen, amino acid, dipeptide or tripeptide linked through the C-terminal carboxylic acid, and amine protecting group is presented.

Liquid laundry detergents containing a protease and at least one additional enzyme wherein the additional enzyme is protected from degradation by the protease during storage by the presence of certain ortho substituted phenylboronic acids.

Growing community of inventors

Wyoming, OH, United States of America

David William Bjorkquist