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    • 34. 发明授权
    • Microwave processing
    • 微波处理
    • US5317081A
    • 1994-05-31
    • US799378
    • 1991-11-27
    • Jeffrey D. GelormeDavid A. LewisJane M. Shaw
    • Jeffrey D. GelormeDavid A. LewisJane M. Shaw
    • B01J19/12C08G73/10G01N22/00H01L21/312H05B6/68H05B6/80H05K1/03H05K3/46C08G69/26B05D5/12
    • H05B6/705B01J19/126C08G73/1025G01N22/00H05B6/68B01J2219/00191B01J2219/1215H05K1/0346H05K3/4644Y02B40/143Y10T428/31681Y10T428/31721
    • A method and apparatus are disclosed for conducting a physical process and a chemical reaction by exposing a material containing a volatile substance to microwave radiation where the morphology of said material will change when exposed to such radiation. The power of said radiation is adjusted over time as the morphology of the material changes to maximize the effect of the radiation in order to produce a product in a minimum amount of time that is substantially free of said volatile substance.The method and apparatus can also be used to conduct such a process or reaction with materials that do not contain a volatile material.In one embodiment a method and apparatus are disclosed for manufacturing a polyimide from a precursor in a solvent by exposing the precursor to microwave radiation in a tuneable microwave resonant cavity that is tuned during imidization to achieve critical coupling of the system. Microwave power is controlled to remove the solvent and obtain the desired level of reaction. Processing time has been reduced thirty fold as compared to conventional thermal methods.
    • 公开了一种用于通过将含有挥发性物质的材料暴露于微波辐射进行物理过程和化学反应的方法和装置,其中当暴露于这种辐射时所述材料的形态将改变。 随着材料的形态发生变化,随着时间的推移调整所述辐射的功率以最大化辐射的影响,以便在基本上不含所述挥发性物质的最小时间内产生产物。 该方法和装置也可用于对不含挥发性物质的材料进行这种处理或反应。 在一个实施方案中,公开了一种用于通过在可调谐的微波谐振腔中将前体暴露于微波辐射中的溶剂中的前体制造聚酰亚胺的方法和装置,其在亚胺化期间被调谐以实现系统的临界耦合。 控制微波功率以除去溶剂并获得所需的反应水平。 与常规热法相比,处理时间减少了三十倍。