摘要:
Insulating materials consisting of artifical mineral fibers are impregnated with water insoluble additives, e.g. dust binders and/or water repellant finishing agents in that they are wetted with an emulsion of the water insoluble additive in an aqueous solution of a cellulose ether. Impregnation takes place easily and is effective and resistant.
摘要:
Insulating materials consisting of artificial mineral fibers are impregnated with water insoluble additives, e.g. dust binders and/or water repellant finishing agents in that they are wetted with an emulsion of the water insoluble additive in an aqueous solution of a cellulose ether. Impregnation takes place easily and is effective and resistant.
摘要:
Glass compositions useful for forming fibers which are readily able to be degraded in a physiological medium such as that found in a human body. Advantageous compositions formed according to the present invention comprise the following components, set forth in percent by weight:SiO.sub.2 : 57 to 70%Al.sub.2 O.sub.3 : 0 to 5%CaO: 5 to 10%MgO: 0 to 5%Na.sub.2 O+K.sub.2 O: 13 to 18%B.sub.2 O.sub.3 : 2 to 12%F: 0 to 1.5%P.sub.2 O.sub.5 : 0 to 4%Impurities: less than 2%
摘要翻译:用于形成纤维的玻璃组合物,其容易在诸如在人体中发现的生理介质中降解。 根据本发明形成的有益组合物包含以重量%表示的以下组分:SiO 2:57至70%Al 2 O 3:0至5%CaO:5至10%MgO:0至5%Na 2 O + K 2 O:13至 18%B2O3:2〜12%F:0〜1.5%P2O5:0〜4%杂质:小于2%