公开(公告)号：US09828725B1

公开(公告)日：2017-11-28

申请号：US15353390

申请日：2016-11-16

Applicant: Rayonier Performance Fibers, LLC.

Inventor： Othman A. Hamed ,  Romuald Krzywanski

IPC: D21C9/00

CPC classification number: D21C9/004 ,  D21C9/005

Abstract: A method for making a specialty fiber by activating pulp in an alkaline aqueous medium, then reacting it a water-soluble, multi-functional reagent able to bridge neighboring cellulose chain within a single fiber. The resultant specialty cellulose fibers have high intrinsic viscosity and may be used to make cellulose ethers, cellulose acetate, and viscose.

公开(公告)号：US10344430B2

公开(公告)日：2019-07-09

申请号：US15819609

申请日：2017-11-21

Applicant: Rayonier Performance Fibers, LLC

Inventor： Othman A. Hamed ,  Romuald Krzywanski

IPC: D21H11/16 ,  D21C9/00

Abstract: A method for making a specialty fiber by activating pulp in an alkaline aqueous medium, then reacting it a water-soluble, multi-functional reagent able to bridge neighboring cellulose chain within a single fiber. The resultant specialty cellulose fibers have high intrinsic viscosity and may be used to make cellulose ethers, cellulose acetate, and viscose.