1
Mengkui Luo, Vincent A Roscelli, Amar N Neogi, Richard A Jewell: Lyocell fibers and process for their preparation. Weyerhaeuser Company, Christensen O&apos Connor Johnson & Kindness PLLC, May 22, 2001: US06235392 (79 worldwide citation)

The invention is lyocell fiber characterized by a pebbled surface as seen at high magnification and having a variable cross section and diameter along and between fibers. The fiber is produced by centrifugal spinning, melt blowing or its espunbonding variation. The fibers can be made in the microden ...


2
Mengkui Luo, Amar N Neogi: Lyocell fibers having enhanced CV properties. The Weyerhauser Company, Christensen O&apos Connor Johnson Kindness PLLC, April 24, 2001: US06221487 (60 worldwide citation)

The invention is lyocell fiber characterized by a pebbled surface as seen at high magnification and having a variable cross section and diameter along and between fibers. The fiber is produced by centrifugal spinning, meltblowing or its spunbonding variation. The fibers can be made in the microdenie ...


3
Mengkui Luo, Vincent A Roscelli, Amar N Neogi, Richard A Jewell: Lyocell nonwoven fabric. Weyerhaeuser Company, Christensen O Connor Johnson Kindness, June 27, 2006: US07067444 (55 worldwide citation)

A lyocell nonwoven fabric having fibers characterized by pebbled surfaces and variable cross sections and diameters along the fibers and from fiber to fiber, is disclosed. The lyocell nonwoven fabric is produced by centrifugal spinning, melt blowing or spunbonding. The lyocell nonwoven fabric has fi ...


4
Mengkui Luo, Vincent A Roscelli, Amar N Neogi, Richard A Jewell: Lyocell nonwoven fabric and process for making. Weyerhaeuser Company, Christensen O&apos Connor Johnson Kindness PLLC, July 22, 2003: US06596033 (54 worldwide citation)

The invention is lyocell fiber characterized by a pebbled surface as seen at high magnification and having a variable cross section and diameter along and between fibers. The fiber is produced by centrifugal spinning, melt blowing or its spunbonding variation. The fibers can be made in the microdeni ...


5
Mengkui Luo, Vincent A Roscelli, Senén Camarena, Amar N Neogi, Michael J Yancey, Paul G Gaddis: Lyocell fibers having high hemicellulose content. Weyerhaeuser Company, Christensen O&apos Connor Johnson Kindness PLLC, February 17, 2004: US06692827 (44 worldwide citation)

The present invention is directed to a lyocell fiber having a high hemicellulose content. The fibers are readily cut into staple lengths and can be spun into yarns with excellent knitting and weaving characteristics which dye exceptionally well. The fibers have a cotton-like denier.


6
Mengkui Luo, Vincent A Roscelli, Amar N Neogi, James E Sealey II, Richard A Jewell: Lyocell film made from cellulose having low degree of polymerization values. Weyerhaeuser, August 27, 2002: US06440547 (43 worldwide citation)

The present invention provides lyocell films, having a high hemicellulose content of at least 5%, a low copper number of less than 2, and including cellulose that has a low average degree of polymerization (D.P.) in the range of about 200 to 1100.


7
Mengkui Luo, Vincent A Roscelli, Amar N Neogi: Cellulosic pulp having low degree of polymerization values. Weyerhaeuser Company, Christensen O&apos Connor Johnson Kindness PLLC, March 16, 2004: US06706876 (42 worldwide citation)

The present invention is directed to a pulp useful for making lyocell fibers. The pulp has a degree of polymerization from about 300 to about 1000; an alpha cellulose content of less than about 90% and in one instance can be made in a roll form. The degree of polymerization can be modified by acid h ...


8
James E Sealey II, W Harvey Persinger Jr, Mengkui Luo, Vincent A Roscelli, Amar N Neogi: Process for making a composition for conversion to lyocell fiber from an alkaline pulp having low average degree of polymerization values. Weyerhaeuser Company, Christensen O Connor Johnson & Kindness, August 1, 2006: US07083704 (41 worldwide citation)

The present invention provides compositions, useful for making lyocell fibers, having a high hemicellulose content, a low copper number and including cellulose that has a low average degree of polymerization (D.P.) and a narrow molecular weight distribution. Further, the present invention provides p ...


9
James E Sealey II, W Harvey Persinger Jr, Mengkui Luo, Brian Wester: Process for making lyocell fiber from sawdust pulp. Weyerhaeuser Company, Christensen O Connor Johnson Kindness PLLC, March 1, 2005: US06861023 (41 worldwide citation)

A process for making lyocell fibers including the steps of pulping raw material in a digester to provide an alkaline pulp, wherein the raw material includes sawdust in an amount greater than 0% up to 100%; contacting the alkaline pulp including cellulose and at least about 7% hemicellulose under alk ...


10
Mengkui Luo, Vincent A Roscelli, Senen Camarena, Amar N Neogi, John S Selby: Meltblown process with mechanical attenuation. Weyerhaeuser Company, Christensen O&apos Connor Johnson Kindness PLLC, August 10, 2004: US06773648 (41 worldwide citation)

Cellulose containing dope is extruded through orifices and into a stream of gas moving in a direction generally parallel to the direction that the filaments are formed with varying degrees of mechanical attenuation provided to the filaments using a take-up device, such as a winder.



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