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1. (WO2018035598) LIGNIN PELLETS AND PROCESS FOR PRODUCING SAME

Pub. No.:    WO/2018/035598    International Application No.:    PCT/CA2017/000198
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Thu Aug 24 01:59:59 CEST 2017
IPC: C08L 97/00
C08J 3/12
C08J 3/20
Applicants: NATIONAL RESEARCH COUNCIL OF CANADA
DOMTAR PAPER COMPANY, LLC
Inventors: TON-THAT, Minh Tan
LI, Hongbo
PATENAUDE, Eric
MARCOCCIA, Bruno
SANAEI, Shabnam
Title: LIGNIN PELLETS AND PROCESS FOR PRODUCING SAME
Abstract:
Lignin pellets comprising fused lignin are described herein. The lignin pellets may further comprise a processing aid, and/or a surfactant, and/or a chemical modifying agent, and/or a compatibilizer and/or a thermoplastic polymer. An extrusion process for producing the lignin pellets and their use in the manufacture of lignin thermoplastic blend products, polyols, polyphenols, polyaromatics and polyurethanes is also disclosed herein. The extruded lignin pellet may be dry-blended with additional thermoplastic and/or additive and then directly processed using processes such as injection molding, compression molding, extrusion, extrusion coating, blowing, thermoforming, stamping, foaming, fiber drawing, calendering or rolling.