Bki Holding Corporation

The Procter & Gamble Cellulose Company

The Buckeye Cellulose Corporation

The Procter Gamble Company

Buckeye Technologies Inc.

The Proter & Gamble Cellulose Company

Gp Cellulose Gmbh

Howard Leon Schoggen

Jeffery Todd Cook

Sonja McNeil Fields

Robert Irvin Bell

Gerald Hunt Morton

Danny R Moore

David Jay Smith

James W Owens

Judson Fidler

Walter L Dean

Jeffrey T Cook

Robert M Bourbon

Byron Jerry Lee Huff

Carlisle M Herron

Charles Edward Bost

John W Smith

Kenneth D Wray

Donald A Colgrove

Denise H Broughton

Jeffrey Todd Cook

Jimmy Dale Speakman

Max Lynn Wood

Claudia J Wade

Judson Woodward Fidler Iii

The present invention provides for twisted and rectangular dice forms of sheeted fibrous materials and a process for making the dice forms. Specifically, the invention teaches the use of dice forms and sheet materials in construction and cementitious materials. 

System for delivery of fibers into concrete

The present invention relates to a fiber-reinforced cement based or cementitious material, and process for making, where the reinforcing fiber is a chemically treated cellulose or non-cellulose fiber. The fiber reinforced cementitious material includes (i) cement, (ii) optionally, sand, aggregate, or sand and aggregate, and (iii) chemically treated fibers having a polyvalent cation content of from about 0.1 weight percent to about 5.0 weight percent based on the dry weight of the treated fibers. The present invention further provides for a fiber reinforced cementitious material having a weak acid content of from about 0.5 weight percent to about 10 weight percent based on the dry weight of the treated fibers.

Cementitious material reinforced with chemically treated cellulose fiber

Disclosed are absorbent structures for use in disposable absorbent products for absorbing bodily fluids, wherein the absorbent structure includes a fluid storage layer including matrix fibers and a superabsorbent polymer for receiving fluids and a distribution strip positioned below the fluid storage layer. The distribution strip includes cellulosic fibers and has a basis weight of between 45 grams per square meter and 140 grams per square meter and a density of between 0.20 grams per cubic centimeter and 0.60 grams per cubic centimeter.

Distribution strip for absorbent products

Disclosed are absorbent structures including fibers bound with a polyvalent cation-containing compound and superabsorbent polymer particles. The fibers exhibit an ion extraction factor of at least 5%. Also disclosed are multi-strata absorbent structures, such as disposable absorbent articles, including the treated fibers and SAP particles. Further disclosed are methods for preparing absorbent structures including the treated fibers; structures including fibers combined with a polyvalent cation-containing compound; and methods for treating or coating SAP particles with polyvalent cation-containing compounds.

Absorbent structures of chemically treated cellulose fibers

Disclosed are absorbent structures for use in disposable absorbent products for absorbing bodily fluids, wherein the absorbent structure includes a fluid storage layer including matrix fibers and a superabsorbent polymer for receiving fluids and a distribution strip positioned below said fluid storage layer. The distribution strip includes cellulosic fibers and has a basis weight of between 45 grams per square meter and 140 grams per square meter and a density of between 0.20 grams per cubic centimeter and 0.60 grams per cubic centimeter

An absorbent structure which includes a fluid storage layer comprising matrix fibers (e.g., cellulose fluff fibers) and superabsorbent polymers positioned above a distribution strip. The strip comprises cellulosic fibers (e.g., cotton linters, mercerized cellulose, fluff pulp, or chemically treated cellulose) having a basis weight of between 45 g/m and 140 g/m , preferably between 75 g/m and 110 g/m , and a density of between 0.20 g/cc and 0.60 g/cc, preferably between 0.25 g/cc and 0.55 g/cc. The absorbent structure may also comprise a fluid pervious top sheet and a fluid impervious back sheet. The structure may be used in diapers, feminine hygiene pads or adult incontinence pads.

A layered composite suitable for disintegration into superabsorbent cellulose fluff suitable for use as a core material in an absorbent product. The composite includes a wetlaid web of cellulosic fibers; a layer of superabsorber disposed on the wetlaid web; a drylaid cellulosic layer disposed on the superabsorber layer; wherein the layer of superabsorbent particles comprises greater than 50 percent by weight of the composite; and the drylaid cellulosic layer does not include a bonding agent.

Unitary absorbent material for use in absorbent structures

A light weight, low density absorbent structure suitable for use in disposable absorbent products which is formed from a fibrous web of cellulose and cellulose acetate fibers. The fibrous web is treated with a triacetin solvent and heat cured to bond the fibers. The absorbent structure has excellent structural integrity and an absorbent capacity and strength which is equal to or exceeds that of absorbent structures having twice the basis weight.

Light-weight, low density absorbent structure and method of making the

Individualized, stiffened, twisted cellulosic fibers and absorbent structures made from such fibers. The fibers have an average dry fiber twist count of at least about 4.5 twist nodes per millimeter, an average wet fiber twist count of at least about 0.5 twist nodes per millimeter less than the dry fiber twist count, and a water retention value of between about 28% and about 50%. Preferably the fibers have an average wet fiber twist count of at least about 3.0 twist nodes per millimeter and an isopropyl alcohol retention value of less than about 30%.

Twisted, chemically stiffened cellulosic fibers and absorbent structures

Individualized, crosslinked fibers made by (a) defibrating moistened, cellulosic fibers and at least partially drying the fibers under substantially unrestrained conditions, i.e., in the substantial absence of interfiber bonds (b) contacting the fibers with a crosslinking agent, (c) reacting the crosslinking agent with the fibers in the substantial absence of interfiber bonds, to form intrafiber crosslink bonds, (d) subjecting the fibers, while in a moistened condition, to a second defibration step, and then at least partially drying the fibers under substantially unrestrained conditions.

Process for making individualized, crosslinked fibers and fibers thereof

A process for making individualized, crosslinked fibers having low levels of residual crosslinking agent. The fibers are made by contacting the fibers with a crosslinking agent; reacting the crosslinking agent with the fibers to form intrafiber crosslink bonds in the substantial absence of interfiber bonds; and washing the fibers with an alkaline solution.

Process for making individualized, crosslinked fibers having reduced

Individualized, crosslinked fiber, and process for making such fibers. The individualized, crosslinked fibers have between about 0.5 mole % and about 3.5 mole % crosslinking agent, calculated on a cellulose anhydroglucose molar basis, reacted with fibers in the form of intrafiber crosslink bonds, wherein the crosslinking agent is selected from the group consisting of C.sub.2 -C.sub.8 dialdehydes, C.sub.2 -C.sub.8 dialdehyde acid analogues having at least one aldehyde functionality, and oligomers of such C.sub.2 -C.sub.8 dialdehydes, and dialdehyde acid analogues. Preferably, the crosslinking agent is glutaraldehyde, and between about 0.75 mole % and about 2.5 mole % crosslinking agent react to form the intrafiber crosslink bonds. The individualized crosslinked fibers are useful in a variety of absorbent structure applications.

Individualized crosslinked fibers and process for making said fibers

Absorbent structures containing individualized, crosslinked fibers. The individualized, crosslinked fibers preferably have between about 0.5 mole % and about 3.5 mole % crosslinking agent, calculated on a cellulose anhydroglucose molar basis, reacted with the fibers in the form of intrafiber crosslink bonds, wherein the crosslinking agent is selected from the group consisting of C.sub.2 -C.sub.8 dialdehydes, C.sub.2 -C.sub.8 dialdehyde acid analogues having at least one aldehyde functionality, and oligomers of such C.sub.2 -C.sub.8 dialdehydes and dialdehyde acid analogues. More preferably, the crosslinking agent is glutaraldehyde, and between about 0.75 mole % and about 2.5 mole % crosslinking agent react to form the intrafiber crosslink bonds. Also preferably, the absorbent structures have actual dry densities greater than their corresponding equilibrium wet densities, and expand upon wetting. The absorbent structures may also contain hydrogel-forming material.

Growing community of inventors

Southaven, MS, United States of America

Howard Leon Schoggen