公开(公告)号：US11661704B2

公开(公告)日：2023-05-30

申请号：US17388006

申请日：2021-07-29

申请人： GP CELLULOSE GMBH

发明人： Arthur James Nonni ,  Charles E. Courchene ,  Harry R. Bartges ,  James M. Keough ,  William A. Howell ,  Jeremy M. Carter ,  Blair R. Carter ,  Christopher M. Slone ,  Philip A. Powers ,  Steven T. Haywood

IPC分类号： D21H11/04 ,  D21C9/10 ,  D21C1/04 ,  D21C3/02 ,  D21C9/02 ,  D21C9/14 ,  D21C9/16 ,  D21C1/02

CPC分类号： D21H11/04 ,  D21C1/02 ,  D21C1/04 ,  D21C3/02 ,  D21C3/022 ,  D21C9/02 ,  D21C9/1036 ,  D21C9/1057 ,  D21C9/1084 ,  D21C9/14 ,  D21C9/163

摘要： This disclosure relates to methods of making novel dissolving wood pulps by processes comprising acid prehydrolysis, pulping, and a multi-stage bleaching process comprising oxidation with a catalyst and peroxide under acidic conditions, as well as to products made therefrom having a combination of medium-purity, low viscosity, and improved reactivity, filterability, and/or clogging that can be used as a substitute for traditional high-purity dissolving pulps in a wide variety of applications.

公开(公告)号：US11105042B2

公开(公告)日：2021-08-31

申请号：US16284632

申请日：2019-02-25

申请人： GP CELLULOSE GMBH

发明人： Arthur J. Nonni ,  Charles E. Courchene ,  Harry R. Bartges ,  James M. Keough ,  William A. Howell ,  Jeremy M. Carter ,  Blair R. Carter ,  Christopher M. Slone ,  Philip A. Powers ,  Steven T. Haywood

IPC分类号： D21C9/10 ,  D21C1/04 ,  D21H11/04 ,  D21C9/16 ,  D21C1/02 ,  D21C3/02 ,  D21C9/02 ,  D21C9/14

摘要： This disclosure relates to methods of making novel dissolving wood pulps by processes comprising acid prehydrolysis, pulping, and a multi-stage bleaching process comprising oxidation with a catalyst and peroxide under acidic conditions, as well as to products made therefrom having a combination of medium-purity, low viscosity, and improved reactivity, filterability, and/or clogging that can be used as a substitute for traditional high-purity dissolving pulps in a wide variety of applications.

公开(公告)号：US20190264388A1

公开(公告)日：2019-08-29

申请号：US16284632

申请日：2019-02-25

申请人： GP CELLULOSE GMBH

发明人： Arthur J. Nonni ,  Charles E. Courchene ,  Harry R. Bartges ,  James M. Keough ,  William A. Howell ,  Jeremy M. Carter ,  Blair R. Carter ,  Christopher M. Slone ,  Philip A. Powers ,  Steven T. Haywood

IPC分类号： D21C9/10 ,  D21C1/04 ,  D21C3/02 ,  D21C9/16 ,  D21C9/02 ,  D21C9/14 ,  D21H11/04

摘要： This disclosure relates to methods of making novel dissolving wood pulps by processes comprising acid prehydrolysis, pulping, and a multi-stage bleaching process comprising oxidation with a catalyst and peroxide under acidic conditions, as well as to products made therefrom having a combination of medium-purity, low viscosity, and improved reactivity, filterability, and/or clogging that can be used as a substitute for traditional high-purity dissolving pulps in a wide variety of applications.