Use of low molecular weight lignin together with lignin for the production of a phenol-formaldehyde binder composition

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United States of America Patent

PATENT NO 9469795
SERIAL NO

14388880

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Abstract

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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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Patent Owner(s)

  • UPM-KYMMENE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eskelinen, Kati Imatra, FI 4 33
Pietarinen, Suvi Lappeenranta, FI 27 117
Ringena, Okko Neusass, DE 16 55
Valkonen, Sanna Lappeenranta, FI 19 75

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