Patent ID: 9469795
Filing Date: 2016-10-18
CPC Classification: B27D,C08G,C08H,C08L,C09J

Claim Text:
1. 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, wherein the weight ratio of the lignin molecules of 11-60 lignin units to the lignin molecules of 1-10 lignin units is 0.1-20; and (ii) cooking the aqueous composition at a temperature of 45-95° C. for polymerizing the reactant components until a binder composition with a predetermined viscosity value is formed.