公开(公告)号：US4913775A

公开(公告)日：1990-04-03

申请号：US211780

申请日：1988-06-27

Applicant: John Langley ,  David Holroyd

Inventor： John Langley ,  David Holroyd

IPC: D21H11/08 ,  D21H11/14 ,  D21H17/29 ,  D21H17/44 ,  D21H17/45 ,  D21H17/55 ,  D21H17/56 ,  D21H17/68 ,  D21H21/10 ,  D21H23/14 ,  D21H23/76 ,  D21H3/36

CPC classification number: D21H17/68 ,  D21H17/455 ,  D21H17/55 ,  D21H17/56 ,  D21H23/14 ,  D21H23/765 ,  D21H11/08 ,  D21H11/14 ,  D21H17/29 ,  D21H17/44 ,  D21H21/10

Abstract: Paper or paper board is made by passing an aqueous cellulosic suspension through a centriscreen or other shear device and then draining the purified suspension, and an improved combination of retention, drainage, drying and formation is achieved by adding to the suspension an excess of high molecular weight linear synthetic cationic polymer before shearing the suspension and adding bentonite after shearing.

Abstract translation: 纸或纸板通过使纤维素水悬浮液通过中心或其它剪切装置，然后排出纯化的悬浮液而制备，并且通过向悬浮液中加入过量的高分子量来实现保留，排出，干燥和形成的改进的组合 剪切悬浮液前加入线性合成阳离子聚合物，剪切后加入膨润土。

公开(公告)号：US4753710A

公开(公告)日：1988-06-28

申请号：US6953

申请日：1987-01-27

Applicant: John Langley ,  David Holroyd

Inventor： John Langley ,  David Holroyd

IPC: D21H17/03 ,  D21H17/33 ,  D21H17/45 ,  D21H17/55 ,  D21H17/56 ,  D21H17/67 ,  D21H17/68 ,  D21H21/06 ,  D21H21/10 ,  D21H23/14 ,  D21H23/22 ,  D21H3/36

CPC classification number: D21H17/455 ,  D21H17/55 ,  D21H17/56 ,  D21H17/68 ,  D21H23/14 ,  D21H21/10

Abstract: Paper or paper board is made by passing an aqueous cellulosic suspension through a centriscreen or other shear device and then draining the purified suspension, and an improved combination of retention, drainage, drying and formation is achieved by adding to the suspension an excess of high molecular weight linear synthetic cationic polymer before shearing the suspension and adding bentonite after shearing.

Abstract translation: 纸或纸板通过使纤维素水悬浮液通过中心或其它剪切装置，然后排出纯化的悬浮液而制备，并且通过向悬浮液中加入过量的高分子量来实现保留，排出，干燥和形成的改进的组合 剪切悬浮液前加入线性合成阳离子聚合物，剪切后加入膨润土。