tannins

Lignin and softwood tannins a renewable replacement for phenol
Lignin A leading provider of renewable solutions in packaging, biomaterials, wood and paper has found use for a component of wood traditionally discarded as waste. Despite making up between 20 and 30 per cent of the composition of wood, lignin has long been dismissed by the pulp and paper industries as an unwanted by-product. But ...Read More

Adhesives and insulating foams from softwood bark tannins
In collaboration with its European partners, VTT Technical Research Centre of Finland developed tannin extraction from softwood bark. This process creates at least 130kg of crude tannin powder from one tonne of dry wood bark, leaving 87% of the original bark mass available for incineration.  Tannin can be extracted from bark using hot water, after ...Read More