公开(公告)号：WO2002086206A1

公开(公告)日：2002-10-31

申请号：PCT/US2002/012883

申请日：2002-04-23

Applicant: WEYERHAEUSER COMPANY ,  SEALEY, James, E., II ,  PERSINGER, Harvey, W. ,  LUO, Mengkui ,  WESTER, Brian

Inventor： SEALEY, James, E., II ,  PERSINGER, Harvey, W. ,  LUO, Mengkui ,  WESTER, Brian

IPC: D01F2/00

CPC classification number: D01D5/098 ,  C08B1/00 ,  D01D5/18 ,  D01F2/00 ,  D21C3/02 ,  D21C9/004 ,  D21C9/10 ,  Y10T428/29 ,  Y10T428/2913 ,  Y10T428/2933 ,  Y10T428/2965

Abstract: 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.) (104), wherein greater than 4 % of pulp fibers have a length-weighted fiber length of less than 2.0 mm. Further, the present invention provides processes for making 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 and short fibers. The present invention also provides lyocell fibers and molded bodies (112) made from the compositions. An advantage of the compositions are their quick dissolving nature.

Abstract translation: 本发明提供了可用于制备具有高半纤维素含量，低铜值并且包括具有低平均聚合度（DP）（104））的纤维素的莱赛尔纤维的组合物，其中大于4％的纸浆纤维具有 长度加权的纤维长度小于2.0毫米。 此外，本发明提供了制备可用于制备具有高半纤维素含量，低铜值并且包括具有低平均聚合度和短纤维的纤维素的莱赛尔纤维的组合物的方法。 本发明还提供了由该组合物制成的裂解液纤维和模制体（112）。 组合物的优点是它们的快速溶解性质。

公开(公告)号：WO2003097929A1

公开(公告)日：2003-11-27

申请号：PCT/US2002/015521

申请日：2002-05-15

Applicant: WEYERHAEUSER COMPANY ,  VRBANAC, Michael, D. ,  WESTER, Brian ,  Dennis, Brian ,  LAU, Peter ,  REIMER, Julie ,  BICKELL, David, W.

Inventor： VRBANAC, Michael, D. ,  WESTER, Brian ,  Dennis, Brian ,  LAU, Peter ,  REIMER, Julie ,  BICKELL, David, W.

IPC: D21C3/02

CPC classification number: C04B28/02 ,  C04B18/24 ,  D21C9/004 ,  D21C9/02 ,  Y02W30/97 ,  C04B20/04

Abstract: A pulp product that has a low COD is comprised of an unbleached pulp that is soaked and washed in alkaline water for a sufficient time so that the COD after soaking and washing is less than or equal to 3.0kg/1000 kg of dry pulp. The pulp is produced by repetitively soaking and washing an unbleached pulp in alkaline water that is never allowed to drop below pH 7.0. The pulp is soaked and washed for a total of at least 400 minutes at an elevated temperature to produce the pulp product that has a low COD.

Abstract translation: 具有低COD的纸浆产品由未漂白的纸浆组成，其在碱性水中浸泡和洗涤足够的时间，使得浸泡和洗涤后的COD小于或等于3.0kg / 1000kg的干纸浆。 纸浆通过在不允许低于pH 7.0的碱性水中重复浸泡和洗涤未漂白的纸浆而制备。 在高温下将纸浆浸泡并洗涤总共至少400分钟，以生产具有低COD的纸浆产品。

公开(公告)号：WO2003097930A1

公开(公告)日：2003-11-27

申请号：PCT/US2002/015522

申请日：2002-05-15

Applicant: WEYERHAEUSER COMPANY ,  VRBANAC, Michael, D. ,  WESTER, Brian ,  DENNIS, Brian, E. ,  LAU, Peter, K. ,  REIMER, Julie, A. ,  BICKELL, David, W.

Inventor： VRBANAC, Michael, D. ,  WESTER, Brian ,  DENNIS, Brian, E. ,  LAU, Peter, K. ,  REIMER, Julie, A. ,  BICKELL, David, W.

IPC: D21C3/02

CPC classification number: D21C9/02 ,  C04B18/241 ,  D21C9/083 ,  Y02W30/97 ,  C04B20/02

Abstract: A pulp product that has a low COD is comprised of an unbleached pulp that is soaked and washed in alkaline water for a sufficient time so that the COD after soaking and washing is less than or equal to 3.0 kg/1000 kg of dry pulp. The pulp is produced by repetitively soaking and washing an unbleached pulp in alkaline water that is never allowed to drop below pH 7.0. The pulp is soaked and washed for a total of at least 400 minutes at an elevated temperature to produce the pulp product that has a low COD.

Abstract translation: 具有低COD的纸浆产品由未漂白的纸浆组成，其在碱性水中浸泡和洗涤足够的时间，使得浸泡和洗涤后的COD小于或等于3.0kg / 1000kg干纸浆。 纸浆通过在不允许低于pH 7.0的碱性水中重复浸泡和洗涤未漂白的纸浆而制备。 在高温下将纸浆浸泡并洗涤总共至少400分钟，以生产具有低COD的纸浆产品。

公开(公告)号：EP1402092A1

公开(公告)日：2004-03-31

申请号：EP02731478.0

申请日：2002-04-23

Applicant: WEYERHAEUSER COMPANY

Inventor： SEALEY, James, E., II ,  PERSINGER, Harvey, W. ,  LUO, Mengkui ,  WESTER, Brian

IPC: D01F2/00 ,  C08J5/18 ,  D21C9/00 ,  D01D5/18

CPC classification number: D01D5/098 ,  C08B1/00 ,  D01D5/18 ,  D01F2/00 ,  D21C3/02 ,  D21C9/004 ,  D21C9/10 ,  Y10T428/29 ,  Y10T428/2913 ,  Y10T428/2933 ,  Y10T428/2965

Abstract: 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.) (104), wherein greater than 4 % of pulp fibers have a length-weighted fiber length of less than 2.0 mm. Further, the present invention provides processes for making 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 and short fibers. The present invention also provides lyocell fibers and molded bodies (112) made from the compositions. An advantage of the compositions are their quick dissolving nature.