Invention Grant
- Patent Title: Method for increasing the reactivity of lignin
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Application No.: US15251509Application Date: 2016-08-30
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Publication No.: US10246619B2Publication Date: 2019-04-02
- Inventor: Suvi Pietarinen , Okko Ringena , Kati Eskelinen , Sanna Valkonen
- Applicant: UPM-Kymmene Corporation
- Applicant Address: FI Helsinki
- Assignee: UPM-KYMMENE CORPORATION
- Current Assignee: UPM-KYMMENE CORPORATION
- Current Assignee Address: FI Helsinki
- Agency: Nixon Peabody LLP
- Priority: FI20125358 20120329
- Main IPC: C08H7/00
- IPC: C08H7/00 ; C09J197/00 ; C07G1/00 ; C08G8/20 ; C09J161/12 ; C08L97/00 ; C08L97/02 ; C08G8/24
Abstract:
The present invention relates to a method for increasing the reactivity of lignin, wherein the method comprises the following steps: a) forming, under heating at a temperature of 30-70° C., an aqueous dispersion comprising alkali and lignin, wherein the alkali comprises a hydroxide of an alkali metal; and b) heating the dispersion formed in step a) at a temperature of 50-95° C. for producing alkalated lignin.
Public/Granted literature
- US20160369141A1 METHOD FOR INCREASING THE REACTIVITY OF LIGNIN Public/Granted day:2016-12-22
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