| 摘要 |
Insulating material (I), contains (A) 37-52% kraft paper,newspaper, cellulose, pulp, paperboard, scrap wallpaper, egg packaging, leaves, wood chips and/or cork chopped to a particle size of 0-5 mm<2>, (B) 16-30% jute, sisal, linen fibres, hemp, straw, reeds, flax, raw cotton, coconut fibres, and/or hay, chopped to a fibre length of 5-30 mm, and (C) 18-47% borax pentahydrate, borax decahydrate, borax-polybor, boric acid, Mg chloride, Al sulphate, tall resin, lignin sulphonate and/or Ca chloride. Also claimed is the prodn. of (I). |
