Invention Grant
- Patent Title: Method for increasing the reactivity of lignin
-
Application No.: US15024725Application Date: 2014-09-29
-
Publication No.: US10259903B2Publication Date: 2019-04-16
- Inventor: Suvi Pietarinen , Sanna Valkonen , Okko Ringena
- 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: FI20135972 20130930
- International Application: PCT/FI2014/050738 WO 20140929
- International Announcement: WO2015/044528 WO 20150402
- Main IPC: C08G8/38
- IPC: C08G8/38 ; C08H6/00 ; C08H7/00 ; C09J197/00 ; C08L97/02 ; C08G8/20 ; C09J161/12 ; B27N3/00 ; C09J161/06
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 71-94° 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
- US20160237194A1 A METHOD FOR INCREASING THE REACTIVITY OF LIGNIN Public/Granted day:2016-08-18
Information query
