of natural origin, e.g. cellulosic materials

Full Title

Soil-conditioning materials or soil-stabilising materials (specially adapted for boreholes or wells C09K8/00; fertilisers C05; consolidating by placing solidifying or pore-filling substances in the soil E02D3/12) > containing organic compounds only > Prepolymers; Macromolecular compounds > of natural origin, e.g. cellulosic materials