公开(公告)号：US20130202877A1

公开(公告)日：2013-08-08

申请号：US13837194

申请日：2013-03-15

申请人： W.R. Meadows, Inc.

发明人： Tariq Mahmood Malik

IPC分类号： E01C11/02

CPC分类号： D21J1/08 ,  C08L95/00 ,  D21H17/61 ,  D21H19/00 ,  D21H23/00 ,  D21J1/06 ,  E01C11/02 ,  Y10T428/249924 ,  Y10T428/25 ,  Y10T428/31801 ,  Y10T428/31815 ,  Y10T428/31819 ,  Y10T428/31823

摘要： A process for manufacturing fiberboard by preparing a fiber slurry mixture including containing cellulose fibers and water then atomizing a liquid bituminous material, such as asphalt. The liquid bituminous material is atomized by mixing it with a pressurized gas, such as compressed air, forming a mist comprising droplets of bituminous material having a diameter between 20 microns and 50 microns. A water spray solidifies the bituminous material droplets thereby forming bituminous particles which fall into the fiber slurry within the spray chamber. From there the slurry is sheared, dewatered, and dried, forming a finished fiberboard.

公开(公告)号：US20130125784A1

公开(公告)日：2013-05-23

申请号：US13748169

申请日：2013-01-23

申请人： W.R. Meadows, Inc.

发明人： Tariq Mahmood Malik

IPC分类号： C08L95/00

CPC分类号： D21J1/08 ,  C08L95/00 ,  D21H17/61 ,  D21H19/00 ,  D21H23/00 ,  D21J1/06 ,  E01C11/02 ,  Y10T428/249924 ,  Y10T428/25 ,  Y10T428/31801 ,  Y10T428/31815 ,  Y10T428/31819 ,  Y10T428/31823

摘要： A process for manufacturing fiberboard by preparing a fiber slurry mixture including containing cellulose fibers and water then atomizing a liquid bituminous material, such as asphalt. The liquid bituminous material is atomized by mixing it with a pressurized gas, such as compressed air, forming a mist comprising droplets of bituminous material having a diameter between 20 microns and 50 microns. A water spray solidifies the bituminous material droplets thereby forming bituminous particles which fall into the fiber slurry within the spray chamber. From there the slurry is sheared, dewatered, and dried, forming a finished fiberboard.

公开(公告)号：US20230167607A1

公开(公告)日：2023-06-01

申请号：US17893956

申请日：2022-08-23

申请人： W.R. Meadows, Inc.

发明人： Mark W. Custer

IPC分类号： D21H11/18 ,  D21H17/28 ,  D21H17/60 ,  D21H17/66 ,  D21H17/67 ,  D21H21/10 ,  D21H17/00 ,  D21J1/16 ,  D21J1/06 ,  E04C2/02

CPC分类号： D21H11/18 ,  D21H17/28 ,  D21H17/60 ,  D21H17/66 ,  D21H17/675 ,  D21H21/10 ,  D21H17/74 ,  D21J1/165 ,  D21J1/06 ,  E04C2/02

摘要： Fiberboard sheet materials containing cellulosic fibers ae disclosed in which cellulose nanofibrils are used as a binder for adhering the cellulosic fibers together. The cellulose nanofibrils are present in an amount of 0.5% to 7.5% by weight on a dry weight basis of the fiberboard sheet. The fiberboard sheet materials have strength properties that meet or exceed the requirements in ASTM C208, and are useful for structural sheathing and roofing board applications. A process for manufacturing the fiberboard sheet is also disclosed.