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    • 7. 发明授权
    • Photopolymerization apparatus
    • 光聚合装置
    • US3875067A
    • 1975-04-01
    • US37337473
    • 1973-06-25
    • SCM CORP
    • DESORGO MIKSAMCGINNISS VINCENT D
    • B01J19/12B29C35/08B29C41/12B01J1/10
    • B01J19/123B29C35/08B29C41/12B29C2035/0827B29C2791/001
    • Process and apparatus for polymerizing oxygen-inhibited ultraviolet photopolymerizable resin-forming material such as a film is shown. The apparatus comprises a pair of U.V. light sources, one being a flash photolysis source, the other a sustained photolysis source, both disposed for irradiating said mass as it abides in an atmosphere such as air which tends to inhibit such polymerization. The process has two essential phases, a superficial phase and a profound phase, performed simultaneously or one in advance of and as preparation for the other. The profound phase is performed with sustained irradiation effective for substantially completely polymerizing said material except for inhibition of polymerization at the surface thereof due to said atmosphere. The superficial phase is performed with flash irradiation effective for forming a tack-free skin over said material. Said skin helps to protect the less fully polymerized material therebelow from oxygen inhibition when such superficial phase is performed first or simultaneously with the other phase. When such superficial phase is performed after the profound phase, said superficial phase acts to complete polymerization of said material throughout its thickness.
    • 8. 发明授权
    • Electroslag refining flux compositions and process for making same
    • 电解液精炼液组合物及其制备方法
    • US3857702A
    • 1974-12-31
    • US19232971
    • 1971-10-26
    • SCM CORP
    • CORBETT P
    • C22B9/18C22D7/00
    • C22B9/18
    • An improved electroslag refining (ESR) flux composition and process for making same are shown. The instant ESR flux compositions are made from particulate batch materials providing at least alumina, a fluoride and alkaline earth metal oxide, including calcium oxide, by the process described to yield a product exhibiting a substantially uniform fusion characteristic and to be substantially free of contamination from outside sources. The improvement in process comprises subjecting a substantially homogeneous mixture of batch materials, advantageously pelletized, to heat reaction at a temperature short of their complete fusion and in the range of about 1,900*2,400* F, generally most suitably until the free calcium oxide in the resulting product is below about 1 1/2 %.
    • 显示了改进的电渣精炼(ESR)助焊剂组合物及其制备方法。 瞬时ESR助焊剂组合物由颗粒状批料材料制成,其通过所述方法提供至少氧化铝,氟化物和碱土金属氧化物(包括氧化钙),以产生显示出基本上均匀的熔融特性并且基本上不含污染 外部来源。 改进方法包括使基本上均匀的批料的混合物,有利地造粒,在不到完全熔化的温度下加热反应,并且在约1900--2400°F的范围内,通常最合适地直到游离氧化钙 所得产物低于约11/2%。