| 摘要 |
1,208,001. Filter. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 13 Sept., 1967 [15 Sept., 1966; 22 Nov., 1966; 1 March, 1967 (2)], No. 41734/67. Headings B1D and BIT. [Also in Divisions Cl, H1 and B3] Silicon carbide whiskers obtained by heating a system comprising silicon and carbon and/or compounds of these elements together with lanthanum or a lanthanum compound at more than 1000‹C. (cf Division C1) may be used to form a filter suitable for filtering highly reactive liquids and gases, for example by packing the whiskers in a platinum dish, the bottom of which is provided with holes. |
