发明名称 PROCESS FOR PREPARING COMPOSITIONS CONTAINING CELLULOSE-BASED FIBRES
摘要 <p>The invention concerns a process for preparing compositions containing cellulose-based materials, according to which process a finely-divided cellulose-based material is mixed with an aggregate. According to the invention, the cellulose-based substance, such as wood or cellulose fibres, is first heated at a temperature of 150 to 300 °C before it is mixed with the aggregate. As a result of the heat treatment, the material becomes less hygroscopic, which makes it easier to mix with other substances. Furthermore, the mono- and polysaccharides and extractives contained in wood are partly decomposed and removed during the heat treatment. The wood or cellulose product thus obtained is particularly useful as a filler of concrete, asphalt and plastics, and, e.g., incorporated into a concrete mix, it does not impair the hardening of the mix.</p>
申请公布号 WO1996015077(A1) 申请公布日期 1996.05.23
申请号 FI1995000624 申请日期 1995.11.13
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