Weyerhaeuser Company Limited

Weyerhaeuser Nr Company

International Paper Company

Weyerhaeuser

Kimberly-clark Worldwide, Inc.

Mengkui Luo

Amar N Neogi

James E Sealey, Ii

Vincent A Roscelli

Richard A Jewell

W Harvey Persinger, Jr

S Ananda Weerawarna

Hugh West

Andrew Dodd

Brian Wester

Kent Douglas Robarge

Angela Dodd

John A Westland

Alena Michalek

Jian Qin

Paul G Gaddis

Michael James Yancey

Charles E Miller

James H Wiley

Karen Brogan

David George Unrau

Noriko Suzuki

Michael Rea

Amy Anderson-Gaber

Kris Lindenauer

Sen&eacute;n Camarena

James E Sealey

Bing Su

John S Selby

Carole W Herriott

Venketa Ranganathan Parthasarathy

Venketa Panganathan Parthasarathy

Senen Camarena

W Harvey Persinger

Andrew J Dodd

Charles Miller

Ananda S Weerawarna

James E Ii Sealey

Compositions including treated Kraft pulp, useful for making rayon fibers, having a lower degree of polymerization, a high R18, a low hemicellulose content, and high reactivity, are described. Methods of making the compositions are also described.

Treated Kraft pulp compositions and methods of making the same

Pulps, cellulose ether products, and methods of making pulps are described.

Crosslinked pulps, cellulose ether products made therefrom; and related methods of making pulps and cellulose ether products

A pulp in accordance with a particular embodiment includes crosslinked cellulose fibers. The pulp can have high brightness, reactivity, and intrinsic viscosity. The pulp, therefore, can be well suited for use as a precursor in the production of low-color, high-viscosity cellulose derivatives. A method in accordance with a particular embodiment of the present technology includes forming a pulp from a cellulosic feedstock, bleaching the pulp, crosslinking cellulose fibers within the pulp while the pulp has a high consistency, and drying the pulp. The bleaching process can reduce a lignin content of the pulp to less than or equal to 0.09% by oven-dried weight of the crosslinked cellulose fibers. Crosslinking the cellulose fibers can include exposing the cellulose fibers to a glycidyl ether crosslinker having two or more glycidyl groups and a molecular weight per epoxide within a range from 140 to 175.

Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology

A fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1795-96, a method of making the blend and materials which incorporate the blend.

Fibrillated blend of lyocell low DP pulp

Esterified cellulose pulp compositions produced in high yield from commercially available wood pulp sources, methods for making the esterified cellulose pulp compositions, and articles prepared from the esterified cellulose pulp compositions.

Esterified cellulose pulp compositions and related methods

A fibrillated blend of lyocell and cellulosic pulp having a degree of polymerization of 200 to 1000 as measured by ASTM Test 1975-96, a method of making the blend and materials which incorporate the blend.

Fibrillated blend of lyocell and cellulosic low DP pulp

Meltblown lyocell fibers incorporating polyolefinic hydrophobic polymers are disclosed. The polymer is distributed fairly uniformly within the fiber and exists as approximately one to two micron diameter domains. The fibers have a high hemicellulose level, show reduced water retention values and have varying diameters depending on processing conditions. The fibers have a brightness of at least 60.

Lyocell fibers

A web comprising a layer of crosslinked cellulosic fiber overlaid on and integral with at least one layer of regenerated cellulose fiber. The crosslinked cellulosic fiber can be sandwiched between two regenerated cellulose fiber layers. The regenerated cellulose can be viscose or lyocell.

Lyocell web product

Cellulose filtration products comprising nonwoven lyocell fiber webs in which the fibers have a diameter of from 3 to 12 microns, the largest pore diameter of less than about 300 microns and a mean flow pore diameter of less than about 150 microns are disclosed. Multilayer nonwoven lyocell fiber webs are also disclosed which have lower mean flow pore diameters and lower pore sizes.

Nonwoven lyocell fiber webs for filtration

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Auburn, WA, United States of America

Mengkui Luo