Photoresists and method for making printing plates
    2.
    发明授权
    Photoresists and method for making printing plates 失效
    光刻胶和制版印刷版的方法

    公开(公告)号:US6037085A

    公开(公告)日:2000-03-14

    申请号:US666169

    申请日:1996-06-19

    摘要: Printing plates having a photoresist layer thereon that can be exposed by a computer controller laser have improved sensitivity and do not require a photomask step. We have found photoresists that include a film forming polymer, an organo azide and a photosensitive dye that absorbs light at the frequency of the patterning laser and converts it to heat energy. The heat energy in turn elevates the temperature of the organo azide above its dissociation temperature, destroying the azide in areas exposed to the light source, and solubilizing those regions. A post pattern exposure flood exposure with ultraviolet light hardens the unexposed resist, improving its resistance to etch solvents.

    摘要翻译: 其上具有可由计算机控制器激光器曝光的光致抗蚀剂层的印刷板具有改进的灵敏度,并且不需要光掩模步骤。 我们已经发现光致抗蚀剂包括成膜聚合物,有机叠氮化物和感光染料,其以图案化激光的频率吸收光并将其转化为热能。 热能又将有机叠氮化物的温度升高到其解离温度以上,破坏暴露于光源的区域中的叠氮化物,并溶解这些区域。 具有紫外线的柱状曝光泛滥曝光使未曝光的抗蚀剂变硬,提高其对蚀刻溶剂的抵抗力。

    Aluminum printing plates and method of making
    3.
    发明授权
    Aluminum printing plates and method of making 失效
    铝印版及其制作方法

    公开(公告)号:US06664019B2

    公开(公告)日:2003-12-16

    申请号:US09902416

    申请日:2001-07-10

    IPC分类号: G03F7012

    摘要: A method of making improved aluminum printing plates comprising graining the aluminum plates, de-smutting them by treating them with nitric acid solution, then rinsing with hot water, acetating the aluminum plates, and silicating the aluminum plates. The plates are then coated with a photoresist, pattern exposed and developed. The printing plates of the invention have improved characteristics; they have excellent adhesion of the resist in image areas, and ink repellency in non-image areas. The developed printing plates have excellent durability without baking.

    摘要翻译: 一种制造改进的铝印版的方法,包括将铝板磨成板,通过用硝酸溶液处理它们去除它们,然后用热水冲洗,乙酸化铝板和硅化铝板。 然后用光致抗蚀剂涂覆板,图案曝光和显影。 本发明的印版具有改进的特性; 它们在图像区域中具有优异的抗蚀剂粘附性,并且在非图像区域中具有拒墨性。 显影的印版具有优异的耐久性,无需烘烤。

    Photoimaging compositions containing substituted 1,2-dibromoethanes
    4.
    发明授权
    Photoimaging compositions containing substituted 1,2-dibromoethanes 失效
    含有取代的1,2-二溴乙烷的光学成像组合物

    公开(公告)号:US4634657A

    公开(公告)日:1987-01-06

    申请号:US643397

    申请日:1984-08-23

    申请人: Bruce Holman, III

    发明人: Bruce Holman, III

    CPC分类号: G03C1/675 G03F7/105

    摘要: Photoimaging compositions comprising (a) substituted dibromoethane as defined, e.g., 1,2-dibromotetrachloroethane, 1,2-dibromo-1,1-dichloroethane, etc. and (b) leuco dye. Photoimaging photopolymerizable compositions consist essentially of (a) substituted 1,2-dibromoethane as defined, (b) leuco dye, (c) at least one ethylenically unsaturated compound, (d) photoinitiator taken from the group consisting of -4-trichloromethyl-4-methyl-2,5-cyclohexadienones, benzophenones, alkylaryl ketones, and mixtures thereof; and optionally (e) at least one organic polymeric binder. The compositions are useful to provide a printout image and in admixture with a variety of initiators or initiator systems and ethylenically unsaturated compounds provide photopolymerizable compositions having good printout images.

    摘要翻译: 包含(a)定义的取代的二溴乙烷(例如1,2-二溴四氯乙烷,1,2-二溴-1,1-二氯乙烷等)和(b)无色染料的光成像组合物。 光致成像光聚合组合物基本上由(a)如下定义的取代的1,2-二溴乙烷,(b)无色染料,(c)至少一种烯键式不饱和化合物组成,(d)光引发剂,其取自4-三氯甲基-4 甲基-2,5-环己二烯酮,二苯甲酮,烷基芳基酮及其混合物; 和(e)至少一种有机聚合物粘合剂。 所述组合物可用于提供打印图像并与各种引发剂或引发剂体系混合,烯属不饱和化合物提供具有良好打印图像的可光聚合组合物。

    Method of improving magnetic resonance sensitivity
    5.
    发明申请
    Method of improving magnetic resonance sensitivity 审中-公开
    提高磁共振灵敏度的方法

    公开(公告)号:US20100201362A1

    公开(公告)日:2010-08-12

    申请号:US12658542

    申请日:2010-02-11

    申请人: Bruce Holman, III

    发明人: Bruce Holman, III

    IPC分类号: G01R33/48

    摘要: We describe a method for use in enhancing MRI signals and increasing the sensitivity of NMR spectroscopy. The method involves the use of dynamic nuclear polarization (DNP) in which the polarizing agents are sequestered at the interface between two phases a sample phase, and a polarizing phase in such a way that the polarizing agent can be easily removed from the sample prior to analysis. The method produces much efficiency for sample manipulation, and the polarization process. In at least one embodiment the hyper-polarization can be repeated so as to allow the accumulation of spectra of the same material for further increasing the signal to noise ratio. The method also allows a discernment of which peaks in an NMR spectrum of a mixture belong to each individual component.

    摘要翻译: 我们描述了一种用于增强MRI信号并增加NMR光谱的灵敏度的方法。 该方法涉及使用动态核极化(DNP),其中极化剂在两相之间的界面处被隔离在样品相和极化相中,使得偏振剂可以容易地从样品中除去, 分析。 该方法对于样品操作和极化过程产生很大的效率。 在至少一个实施例中,可以重复超极化,以便允许相同材料的光谱的累积以进一步增加信噪比。 该方法还允许鉴别混合物的NMR谱中哪个峰属于每个单独组分。