USING WOOD HYDROLYSATE Russian patent published in 2013 - IPC C08B37/00 

FIELD: wood working industry.

SUBSTANCE: method provides for production of a wood material and its treatment by means of hydrothermic treatment with water for production of wood hydrolysate and wood remains. Used wood remains are suitable for use when making a fibrous mass. The specified hydrolysate contains oligo- and polysaccharides as the main component of the dry substance. At the same time hydrothermic treatment is carried out at the temperature in the range from 100°C to 190°C fo 10 - 360 minutes. Further the wood hydrolysate is divided into at least first and second fractions due to different molecular mass. The first fraction has a higher molecular mass compared to the second fraction. The specified first fraction is used to produce a polymer product. The produced product contains at least 80% oligo- and polysaccharides, 5-15% lignin, 0-5% monosaccharides and less than 0.1% of ash in terms of the dry substance. The specified oligo- and polysaccharides are characterised by the extent of substitution of acetyl groups (Ds_AC) from 0.05 to 2.0.

EFFECT: invention makes it possible to ecologically process wood material in the form of wood chips and produce a polymer product without use of chemical reagents.

43 cl, 1 dwg, 5 tbl, 9 ex