Invention Grant
- Patent Title: Use of surfactant to treat pulp and improve the incorporation of kraft pulp into fiber for the production of viscose and other secondary fiber products
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Application No.: US15473134Application Date: 2017-03-29
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Publication No.: US10407830B2Publication Date: 2019-09-10
- Inventor: Arthur J. Nonni , Charles E. Courchene , Christopher M. Slone , Philip R. Campbell , Steven C. Dowdle , Joel M. Engle
- Applicant: GP Cellulose GmbH
- Applicant Address: CH Zug
- Assignee: GP Cellulose GmbH
- Current Assignee: GP Cellulose GmbH
- Current Assignee Address: CH Zug
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Agent Jeffrey A. Freeman; Ram W. Sabnis
- Main IPC: C08B9/00
- IPC: C08B9/00 ; D21H17/00 ; D21C3/26 ; D21C9/10 ; D21C9/153 ; D21H11/04 ; D21H11/16 ; D21H21/32 ; D21C9/147 ; D21H13/08 ; D21H21/24
Abstract:
A surfactant treated bleached softwood kraft pulp fiber, useful as a starting material in the production of cellulose derivatives including cellulose ether, cellulose esters and viscose, is disclosed. Methods for making the kraft pulp fiber and products made from it are also described.
Public/Granted literature
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