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    • 42. 发明授权
    • Photocuring, articles made by photocuring, and compositions for use in
photocuring
    • 光固化,通过光固化制成的制品和用于光固化的组合物
    • US6090236A
    • 2000-07-18
    • US2300
    • 1997-12-31
    • Ronald Sinclair NohrJohn Gavin MacDonald
    • Ronald Sinclair NohrJohn Gavin MacDonald
    • C08J3/28C08F2/50C09D4/00C09J4/00C09J4/02G03F7/028G03F7/029G03F7/031B32B31/26B32B27/16B32B31/28
    • C08F291/00B32B27/12B32B7/12C08F2/50C08F290/00C08F290/14C09D4/00C09J4/00G03F7/028G03F7/029G03F7/031Y10S430/117Y10S430/121Y10T428/2933Y10T428/2938
    • A method of generating reactive species which includes exposing a polymolecular photoreactor to radiation, in which the polymolecular photoreactor comprises a wavelength-specific sensitizer associated with a reactive species-generating photoinitiator. The sensitizer absorbs energy and transfers the absorbed energy to the photoinitiator which in turn, generates reactive species. The wavelength-specific sensitizer is adapted to have an absorption wavelength band generally corresponding to an emission peak of the radiation. The radiation to which the polymolecular photoreactor is exposed generally will have a wavelength of from about 4 to about 1,000 nanometers. Thus, the radiation may be ultraviolet radiation, including near ultraviolet and far or vacuum ultraviolet radiation: visible radiation: and near infrared radiation. Desirably, the radiation will have a wavelength of from about 100 to about 900 nanometers. More desirably, in one embodiment, the radiation will have a wavelength of from about 100 to about 375 nanometers, in which case the radiation desirably is incoherent, pulsed ultraviolet radiation from a dielectric barrier discharge excimer lamp. Also described are methods of polymerizing unsaturated monomers and curing an unsaturated oligomer/monomer mixture.
    • 一种生成活性物质的方法,其包括使多分子光反应器暴露于辐射,其中所述多分子光反应器包含与产生活性物质的光引发剂相关的波长特异性敏化剂。 敏化剂吸收能量并将吸收的能量转移到光引发剂,其又产生反应性物质。 波长特异性敏化剂适于具有通常对应于辐射的发射峰的吸收波长带。 多分子光反应器暴露的辐射通常将具有约4至约1000纳米的波长。 因此,辐射可能是紫外线辐射,包括近紫外线和远或真空紫外线辐射:可见光辐射和近红外辐射。 理想地,辐射将具有约100至约900纳米的波长。 更理想地,在一个实施例中,辐射将具有约100至约375纳米的波长,在这种情况下,期望的辐射是非相干的,来自介质阻挡放电准分子灯的脉冲紫外线辐射。 还描述了使不饱和单体聚合并固化不饱和低聚物/单体混合物的方法。