Invention Grant
- Patent Title: Use of low molecular weight lignin together with lignin for the production of a phenol-formaldehyde binder composition
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Application No.: US15257439Application Date: 2016-09-06
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Publication No.: US10017636B2Publication Date: 2018-07-10
- Inventor: Sanna Valkonen , Suvi Pietarinen , Okko Ringena , Kati Oinonen
- 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: FI20125357 20120329
- Main IPC: C08L61/06
- IPC: C08L61/06 ; C08H7/00 ; C08G8/20 ; C09J161/12 ; C09J197/00 ; C08L97/00 ; C08L97/02 ; C08G8/24 ; C09J5/00 ; C09J161/06 ; B27D1/04
Abstract:
The present invention relates to a method for producing a binder composition, wherein the method comprises the following steps: (i) forming an aqueous composition comprising reactant components including lignin molecules of 11-60 lignin units, lignin molecules of 1-10 lignin units, polymerizable substance and crosslinking agent in the presence of a catalyst; and (ii) cooking the composition at a temperature of 60-95° C. for polymerizing the reactant components until a binder composition with a predetermined viscosity value is formed.
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