| 摘要 |
1,177,782. Plutonium compounds. UNION CARBIDE CORP. 19 Jan., 1967 [24 Jan., 1966; 28 Jan., 1966; 19 Dec., 1966], No. 2870/67. Heading G6R. [Also in Division C1] Plutonium carbide fibres, textiles and shaped articles are obtained by (a) providing a preformed polymeric material; (b) swelling and opening the polymeric interstices of the material and introducing a plutonium compound therein; (c) drying the polymer; (d) heating at at least 250‹ C. so that the polymer is decomposed but retains its shape to obtain a carbonaceous relic containing plutonium or plutonium compound or intermediate compound; and (d) heating at 1000‹ to 2400‹ C. in a non- oxidizing atmosphere to form a plutonium carbide in the shape of the original polymer. The polymer may be immersed in a solution of the plutonium compound in a solvent, or solvent may be absorbed into the polymer before introducing the plutonium compound; water may be absorbed into the polymer and the polymer then immersed in a hydrolysable liquid plutonium compound. Water may be the solvent for cellulosic materials, e.g. rayon, regenerated cellulose film, cellulose acetate, cotton, wood and ramie, and for protein materials, e.g. wool and silk; esters and ketones may be used for polyvinyl and polyurethane polymers, aromatic alcohols and amines, nitrophenol, meta-cresol and paraphenyl phenol may be used for acrylic and polyester polymers.
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